Millennium Enterprises Air Conditioner Z42 User Manual
INSTALLATION  
MANUAL  
MILLENNIUM™ ROOFTOP  
25, 30 & 40 TON  
MODELS: Z42  
Z33  
Z34  
CONTENTS  
NOMENCLATURE. . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 7  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
GAS HEATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59  
GAS FURNACE OPERATING INSTRUCTIONS. . . 64  
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66  
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 83  
See the following pages for a complete Table of Contents.  
NOTES, CAUTIONS AND WARNINGS  
Installer should pay particular attention to the words: NOTE,  
CAUTION, and WARNING. Notes are intended to clarify or  
make the installation easier. Cautions are given to prevent  
equipment damage. Warnings are given to alert installer  
that personal injury and/or equipment damage may result if  
installation procedure is not handled properly.  
ISO 9001  
Certified Quality  
Management System  
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU  
BEGIN TO INSTALL YOUR UNIT.  
SAVE THIS MANUAL  
882108-YIM-B-1012  
882108-YIM-B-1012  
LIST OF FIGURES  
Fig. #  
Pg. #  
Fig. #  
Pg. #  
1
2
3
4
5
6
7
8
9
COMPONENT LOCATION. . . . . . . . . . . . . . . . . . . . . . . 6  
TYPICAL RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . . . . . 11  
RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . . . 14  
TYPICAL THERMOSTAT WIRING . . . . . . . . . . . . . . . 14  
TYPICAL GAS PIPING CONNECTION . . . . . . . . . . . . 16  
VENT AND COMBUSTION AIR HOODS. . . . . . . . . . . 17  
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
HOT WATER PIPING CROSS-SECTION . . . . . . . . . . 19  
29 HOT WATER COIL - 25 & 30 TON, 1 ROW,  
AT 30 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71  
30 HOT WATER COIL - 25 & 30 TON, 1 ROW,  
AT 40 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71  
31 HOT WATER COIL - 25 & 30 TON, 2 ROW,  
AT 60 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72  
32 HOT WATER COIL - 25 & 30 TON, 2 ROW,  
AT 80 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72  
33 HOT WATER COIL - 40 TON, 1 ROW, AT 10 GPM . . 73  
34 HOT WATER COIL - 40 TON, 1 ROW, AT 20 GPM . . 73  
35 HOT WATER COIL - 40 TON, 1 ROW, AT 30 GPM . . 74  
36 HOT WATER COIL - 40 TON, 1 ROW, AT 40 GPM . . 74  
37 HOT WATER COIL - 40 TON, 2 ROW, AT 20 GPM . . 75  
38 HOT WATER COIL - 40 TON, 2 ROW, AT 40 GPM . . 75  
39 HOT WATER COIL - 40 TON, 2 ROW, AT 60 GPM . . 76  
40 HOT WATER COIL - 40 TON, 2 ROW, AT 80 GPM . . 76  
41 STEAM COIL - 25 & 30 TON (1 ROW) . . . . . . . . . . . . 77  
42 STEAM COIL - 40 TON (1 ROW) . . . . . . . . . . . . . . . . 77  
43 TYPICAL CONTROL WIRING . . . . . . . . . . . . . . . . . . . 78  
44 LEGEND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79  
45 TYPICAL 25 TON POWER WIRING . . . . . . . . . . . . . . 80  
46 TYPICAL STANDARD GAS HEAT WIRING . . . . . . . . 81  
47 TYPICAL MODULATING GAS HEAT WIRING . . . . . . 82  
48 TYPICAL FLUE BAFFLE . . . . . . . . . . . . . . . . . . . . . . . 85  
49 25 TON CHARGING CURVE. . . . . . . . . . . . . . . . . . . . 86  
50 30 TON CHARGING CURVE. . . . . . . . . . . . . . . . . . . . 87  
51 40 TON CHARGING CURVE. . . . . . . . . . . . . . . . . . . . 88  
10 STEAM PIPING CROSS-SECTION . . . . . . . . . . . . . . . 19  
11 BOTTOM SUPPLY AND RETURN . . . . . . . . . . . . . . . 21  
12 END RETURN, BOTTOM SUPPLY . . . . . . . . . . . . . . . 22  
13 BOTTOM RETURN, FRONT & REAR SUPPLY . . . . . 23  
14 END RETURN, FRONT & REAR SUPPLY . . . . . . . . . 24  
15 FIELD INSTALLED DISCONNECT . . . . . . . . . . . . . . . 43  
16 40 TON CONDENSER DETAIL . . . . . . . . . . . . . . . . . . 43  
17 PARTIAL ROOF CURB MODEL 1RC0455P . . . . . . . . 44  
18 ALTITUDE/TEMPERATURE CONVERSION  
FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46  
19 FAN PERFORMANCE - 25 TON . . . . . . . . . . . . . . . . . 48  
20 FAN PERFORMANCE - 30 TON . . . . . . . . . . . . . . . . . 50  
21 FAN PERFORMANCE - 40 TON . . . . . . . . . . . . . . . . . 52  
22 POWER EXHAUST - ONE FORWARD CURVE FAN  
- 25 TONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56  
23 POWER EXHAUST - TWO FORWARD CURVED FANS  
- 30 & 40 TONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58  
24 BELT TENSION ADJUSTMENT . . . . . . . . . . . . . . . . . 59  
25 TYPICAL GAS VALVES . . . . . . . . . . . . . . . . . . . . . . . . 65  
26 TYPICAL FLAME APPEARANCE . . . . . . . . . . . . . . . . 66  
52 PRESSURE DROP DRY EVAPORATOR COIL VS  
SUPPLY AIR CFM - 25 TON . . . . . . . . . . . . . . . . . . . . 89  
53 PRESSURE DROP DRY EVAPORATOR COIL VS  
SUPPLY AIR CFM - 30 TON . . . . . . . . . . . . . . . . . . . . 90  
27 HOT WATER COIL - 25 & 30 TON, 1 ROW,  
AT 10 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70  
54 PRESSURE DROP DRY EVAPORATOR COIL VS  
SUPPLY AIR CFM - 40 TON . . . . . . . . . . . . . . . . . . . . 91  
28 HOT WATER COIL - 25 & 30 TON, 1 ROW,  
AT 20 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70  
55 R-410A QUICK REFERENCE GUIDE . . . . . . . . . . . . . 92  
Johnson Controls Unitary Products  
3
882108-YIM-B-1012  
LIST OF TABLES  
Tbl. #  
Pg. #  
Tbl. #  
Pg. #  
1
2
3
4
5
6
7
8
9
COOLING & ELECTRICAL APPLICATION . . . . . . . . . 8  
30 FAN PERFORMANCE - 25 TON . . . . . . . . . . . . . . . . . 47  
31 FAN PERFORMANCE - 30 TON . . . . . . . . . . . . . . . . . 49  
32 FAN PERFORMANCE - 40 TON . . . . . . . . . . . . . . . . . 51  
33 COMPONENT STATIC RESISTANCE. . . . . . . . . . . . . 53  
34 SUPPLY FAN MOTOR AND DRIVE DATA . . . . . . . . . 54  
35 EXHAUST FAN DRIVE DATA . . . . . . . . . . . . . . . . . . . 54  
COOLING & ELEC. APP. LIMITATIONS . . . . . . . . . . . 8  
STANDARD GAS HEATING CAPACITIES . . . . . . . . . 9  
TEMPERATURE RISE . . . . . . . . . . . . . . . . . . . . . . . . . 9  
MINIMUM HEATING CFM . . . . . . . . . . . . . . . . . . . . . . 9  
MODULATING GAS HEATING CAPACITIES . . . . . . . 9  
MODULATING HEAT . . . . . . . . . . . . . . . . . . . . . . . . . 10  
UNIT WEIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
SUPPLY FAN MOTOR VFD WEIGHTS . . . . . . . . . . . 11  
36 POWER EXHAUST - ONE FORWARD CURVED  
FAN 25 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55  
37 POWER EXHAUST - TWO FORWARD CURVED  
FANS - 30 & 40 TON . . . . . . . . . . . . . . . . . . . . . . . . . . 57  
10 EXHAUST FAN MOTOR VFD WEIGHTS . . . . . . . . . 11  
11 UNIT CORNERWEIGHT . . . . . . . . . . . . . . . . . . . . . . 12  
12 UNIT CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . 12  
13 CONTROL WIRE SIZES . . . . . . . . . . . . . . . . . . . . . . 14  
14 PIPE SIZES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
15 GENERAL PHYSICAL DATA . . . . . . . . . . . . . . . . . . . 25  
16 REFRIGERANT FACTORY CHARGE R-410A . . . . . 26  
17 ELECTRICAL DATA 25 TON BASIC UNIT R-410A . . 26  
18 ELECTRICAL DATA 30 TON BASIC UNIT R-410A . . 27  
19 ELECTRICAL DATA 40 TON BASIC UNIT R-410A . . 27  
38 BELT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . 60  
39 BLOWER SPEED RATE OF CHANGE . . . . . . . . . . . . 61  
40 25 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 62  
41 30 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 62  
42 40 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 63  
43 DRIVE ADJUSTMENT FOR POWER EXHAUST  
- 25 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63  
44 DRIVE ADJUSTMENT FOR POWER EXHAUST  
- 30 & 40 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64  
45 GAS RATE - CUBIC FEET PER HOUR. . . . . . . . . . . . 66  
46 STEAM COIL (1 ROW, 40 TON) . . . . . . . . . . . . . . . . . 67  
47 STATIC RESISTANCE STEAM COIL (25 & 30 TON) . 67  
48 STEAM COIL (1 ROW, 25 & 30 TON) . . . . . . . . . . . . . 67  
49 STATIC RESISTANCE STEAM COIL (40 TON) . . . . . 67  
50 HOT WATER COIL (1 ROW 25 & 30 TON) . . . . . . . . . 67  
51 HOT WATER COIL (1 ROW, 40 TON). . . . . . . . . . . . . 68  
52 WATER PRESSURE DROP (1 ROW, 25 & 30 TON) . 68  
53 WATER PRESSURE DROP (1 ROW, 40 TONS) . . . . 68  
54 HOT WATER COIL (2 ROW, 25 & 30 TON) . . . . . . . . 68  
55 WATER PRESSURE DROP (2 ROW, 25 & 30 TON) . 69  
56 WATER PRESSURE DROP (2 ROW, 40 TON). . . . . . 69  
20 ELECTRICAL DATA 25 TON W/ELECTRIC HEAT  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
21 ELECTRICAL DATA 30 TON W/ELECTRIC HEAT  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
22 ELECTRICAL DATA 40 TON W/ELECTRIC HEAT  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
23 ELECTRICAL DATA 25 TON W/POWER EXHAUST  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
24 ELECTRICAL DATA 30 TON W/POWER EXHAUST  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
25 ELECTRICAL DATA 40 TON W/POWER EXHAUST  
R-410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
26 ELECTRICAL DATA 25 TON W/ELECTRIC HEAT  
AND POWER EXHAUST R-410A . . . . . . . . . . . . . . . .34  
57 STATIC RESISTANCE HOT WATER COIL  
(25 & 30 TON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69  
27 ELECTRICAL DATA 30 TON W/ELECTRIC HEAT  
AND POWER EXHAUST R-410A . . . . . . . . . . . . . . . .37  
58 STATIC RESISTANCE HOT WATER COIL  
(40 TON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69  
28 ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND  
POWER EXHAUST R-410A . . . . . . . . . . . . . . . . . . . .40  
59 INDOOR BLOWER BEARING LUBRICATION  
SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84  
29 ALTITUDE CORRECTION FACTORS . . . . . . . . . . . . 45  
4
Johnson Controls Unitary Products  
882108-YIM-B-1012  
NOMENCLATURE  
Johnson Controls Unitary Products  
5
 
882108-YIM-B-1012  
EVAPORATOR COIL  
AND DRAIN PAN ACCESS  
POWER & CONTROL WIRING  
FILTER ACCESS  
COMPRESSOR ACCESS  
REAR  
RIGHT  
END  
HEAT SECTION  
FRONT  
OPTIONAL POWER  
OUTLET (115V)  
LEFT END  
POWER EXHAUST ACCESS  
HEAT SECTION  
EVAPORATOR COIL  
AND DRAIN PAN ACCESS  
FILTER DRIERS  
FILTER ACCESS  
REAR  
SUPPLY BLOWER & MOTOR  
FIGURE 1 - COMPONENT LOCATION  
6
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
GENERAL  
York Model Z42/Z33/Z34 units are single package cooling  
only or cooling with gas, electric, hot water or steam heating  
designed for outdoor installation on a rooftop and for non-res-  
idential use.  
This Furnace is not to be used for temporary heat-  
ing of buildings or structures under construction.  
ALL MODELS  
The units are completely assembled on rigid, permanently  
attached base rails. All piping, refrigerant charge, and electri-  
cal wiring is factory installed and tested. The units require  
electric power, gas, steam, or hot water connections and duct  
connections. Gas fired units also require installation of a flue  
gas outlet hood.  
This system uses R-410A Refrigerant which oper-  
ates at higher pressures than R-22. No other  
refrigerant may be used in this system. Gage sets,  
hoses, refrigerant containers and recovery sys-  
tems must be designed to handle R-410A. If you  
are unsure, consult the equipment manufacturer.  
Failure to use R-410A compatible servicing equip-  
ment may result in property damage or injury.  
Reference R-410A Quick Reference Guide, Figure 55 for  
R-410A Refrigerant information.  
SAFETY CONSIDERATIONS  
NOTES, CAUTIONS AND WARNINGS  
Installation and servicing of air conditioning equipment can  
be hazardous due to system pressure and electrical compo-  
nents. Only trained and qualified service personnel should  
install, repair or service air conditioning equipment.  
Installer should pay particular attention to the words: NOTE,  
CAUTION, and WARNING. Notes are intended to clarify or  
make the installation easier. Cautions are given to prevent  
equipment damage. Warnings are given to alert installer that  
personal injury and/or equipment damage may result if instal-  
lation procedure is not handled properly.  
Untrained personnel can perform basic maintenance func-  
tions of cleaning coils and filters and replacing filters. All other  
operations should be performed by trained service personnel.  
When working on air conditioning equipment, observe pre-  
cautions in the literature, tags and labels attached to the unit  
and other safety precautions that may apply.  
GAS FIRED MODELS  
DO NOT store or use gasoline or other flammable vapors and  
liquids in the vicinity of this or any other appliance.  
Follow all safety codes, including ANSI Z223.1-Latest Edi-  
tion: wear safety glasses and work gloves; use quenching  
cloth for unbrazing operations; have fire extinguisher avail-  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance. Do not touch any electrical  
switch. Do not use any phone in your building. Immediately  
call your gas supplier from a neighbor’s phone. Follow the  
gas supplier’s instructions. If you cannot reach your gas sup-  
able for all brazing operations.  
plier, call the fire department.  
Before performing service or maintenance opera-  
tions on unit, turn off main power switch to unit.  
Electrical shock could cause personal injury.  
The furnace and its individual shut-off valve must  
be disconnected from the gas supply piping sys-  
tem during any pressure testing of that system at  
test pressures in excess of 0.5 psig. Pressures  
greater than 0.5 will cause gas valve damage  
resulting in a hazardous condition. If gas valve is  
subjected to a pressure greater than 0.5 psig, it  
must be replaced. The furnace must be isolated  
from the gas supply piping system by closing its  
individual manual shut-off valve during any pres-  
sure testing of that system at test pressures equal  
to or less than 0.5 psig.  
Improper installation, adjustment, alteration, ser-  
vice or maintenance can cause injury or property  
damage. Refer to this manual. For assistance or  
additional information consult a qualified installer,  
service agency or the gas supplier.  
INSPECTION  
As soon as a unit is received, it should be inspected for possi-  
ble damage during transit. If damage is evident, the extent of  
damage should be noted on the carrier’s freight bill. A sepa-  
rate request for inspection by the carrier’s agent should be  
made in writing.  
Johnson Controls Unitary Products  
7
             
882108-YIM-B-1012  
After installation, gas fired units must be adjusted to obtain a  
temperature rise within the range specified on the unit rating  
plate.  
REFERENCE  
Additional information is available in the following reference  
form:  
If components are to be added to a unit to meet local codes,  
they are to be installed at the contractor's and/or the cus-  
tomer's expense.  
•
246837 - Technical Guide  
APPROVALS  
Size of unit for proposed installation should be based on heat  
loss / heat gain calculation made according to the methods of  
the Air Conditioning Contractors of America (ACCA).  
Designed certified by CSA, ETL, CETL as follows:  
1. For use as a forced air furnace with cooling unit (gas  
heat models).  
LOCATION  
2. For outdoor installation only.  
Use the following guidelines to select a suitable location for  
these units:  
3. For installation on combustible material and may be  
installed directly on combustible flooring or Class A,  
Class B or Class C roof covering materials.  
TABLE 1: COOLING & ELECTRICAL APPLICATION  
4. For use with natural gas (convertible to LP with kit).  
Not suitable for use with conventional venting systems.  
VOLTAGE VARIATIONS  
UNIT POWER  
SUPPLY  
MIN. VOLTS  
540  
MAX VOLTS  
INSTALLATION  
575-3-60  
208/230-3-60  
460-3-60  
630  
252  
504  
PRECEDING INSTALLATION  
187  
If a factory option convenience outlet is installed, the weath-  
erproof outlet cover must be field installed. The cover shall be  
located in the unit control box. To install the cover, remove  
the shipping label covering the convenience outlet, follow the  
instructions on the back of the weatherproof cover box, and  
432  
TABLE 2: COOLING & ELEC. APP. LIMITATIONS  
MODEL  
attach the cover to the unit using the (4) screws provided.  
LIMITATIONS  
Z42  
Z33  
Z34  
Supply Air CFM  
(min./max)  
6,000-  
12,500  
6,000-  
15,000  
8,000-  
20,000  
208/230-3-60 and 380/415-3-50 units with factory  
installed Powered Convenience Outlet Option are  
wired for 230v and 415v power supply respectively.  
Change tap on transformer for 208-3-60 or 380-3-50  
operation. See unit wiring diagram.  
Entering Wet Bulb  
Temp (F°) (min./max)  
57/75  
57/75  
57/75  
Ambient Temp  
40/125  
40/125  
40/125  
LIMITATIONS  
Min. Air Temperature on Gas Fired Heat Exchangers (°F)  
The installation of this unit must conform to local building  
codes, or in the absence of local codes, with ANSI Z223.1  
Natural Fuel Gas Code and /or CAN/CGA B149 installation  
codes.  
Aluminized  
Stainless  
25  
0
25  
0
25  
0
In U.S.A.:  
1. Unit is designed for outdoor installation only.  
1. National Electrical Code ANSI/NFPA No. 70-Latest Edi-  
tion.  
2. Condenser coils must have an unlimited supply of air.  
Where a choice of location is possible, position the unit  
on either north or east side of building.  
2. National Fuel Gas Code Z223.1-Latest Edition.  
3. Gas-Fired Central Furnace Standard ANSI Z21.47-Lat-  
est Edition.  
3. Suitable for roof mount on curb.  
4. Roof structures must be able to support the weight of the  
unit and its accessories. Unit must be installed on a solid  
level roof curb or appropriate angle iron frame.  
4. Local gas utility requirements.  
Refer to Table 1 for Cooling and Electrical Application Data  
and to Table 2 for Gas Heat Application Data.  
5. Maintain level tolerance to 3/4 inches across width and 2  
inches along length.  
8
Johnson Controls Unitary Products  
           
882108-YIM-B-1012  
TABLE 3: STANDARD GAS HEATING CAPACITIES  
1
3
INPUT CAPACITY (MBH)  
OUTPUT  
GAS RATE, CU. FT./HR.  
GAS HEAT  
OPTION  
AVAILABLE ON  
MODELS  
CAPACITY  
(MBH)  
2
1ST STAGE  
267  
TOTAL  
267  
1ST STAGE  
247  
TOTAL  
247  
N3  
N5  
N8  
Z42/Z33/Z34  
Z42/Z33/Z34  
Z34 ONLY  
213  
426  
638  
267  
533  
247  
495  
4
267  
800  
247  
742  
1.  
Heating capacity is only staged on CV models. VAV models use only one stage at full capacity.  
Blower motor heat not included.  
2.  
3.  
3
Based on a heat content of 1075 Btu/Ft.  
4.  
Unit Control Board with 3 heating outputs only. For all other Unit Control Boards the 1st Stage is 533 MBH.  
TABLE 4: TEMPERATURE RISE  
TABLE 5: MINIMUM HEATING CFM  
MODULES  
MODULES  
TON  
TON  
1
1
2
3
2
3
1
25  
30  
40  
5-35  
5-35  
5-30  
25-55  
20-50  
10-45  
-
-
25  
30  
40  
6,000  
6,000  
8,000  
7,183  
7,901  
8,779  
-
-
25-55  
13,169  
1.  
Calculated minimum CFM for maximum heat  
rise is 5,644 for 25/30T and 6,584 for 40T, 1  
module.  
TABLE 6: MODULATING GAS HEATING CAPACITIES  
INPUT CAPACITY (MBH)  
GAS RATE, CU. FT./HR.  
OUTPUT CAPACITY  
AVAILABLE ON  
GAS HEAT OPTION  
STEPS  
1
MODELS  
(MBH)  
MINIMUM  
69  
MAXIMUM  
267  
MINIMUM  
64  
MAXIMUM  
247  
2
2
2
D3  
D5  
D8  
Z42/Z33/Z34  
Z42/Z33/Z34  
Z34 ONLY  
6
213  
426  
638  
69  
533  
12  
17  
64  
495  
69  
800  
64  
744  
1.  
2.  
Output Capacity at Full Fire.  
Modulating Gas Heat available on CV models only.  
Johnson Controls Unitary Products  
9
       
882108-YIM-B-1012  
TABLE 7: MODULATING HEAT  
STAGES OF GAS CONTROL (% OF FULL HEAT OUTPUT)  
GAS HEAT OPTION  
AVAILABLE ON MODELS  
STEP  
1
INPUT  
OUTPUT  
55,466  
% OF TOTAL OUTPUT  
26%  
69,333  
2
106,666  
165,332  
202,665  
229,332  
266,666  
69,333  
85,333  
40%  
D3  
3
132,266  
162,132  
183,466  
213,333  
55,466  
62%  
(Turn down ratio  
3.8 to 1)  
Z42, Z33, Z34  
4
76%  
5
86%  
6
100%  
13%  
1
2
106,666  
165,332  
202,665  
229,332  
266,666  
325,331  
362,664  
389,331  
426,664  
495,997  
533,330  
69,333  
85,333  
20%  
3
132,266  
162,132  
183,466  
213,333  
260,265  
290,132  
311,465  
341,331  
396,798  
426,664  
55,466  
31%  
4
38%  
5
43%  
D5  
6
50%  
(Turn down ratio  
7.7 to 1)  
Z42, Z33, Z34  
7
61%  
8
68%  
9
73%  
10  
11  
12  
1
80%  
93%  
100%  
9%  
2
106,666  
165,332  
202,665  
229,332  
266,666  
325,331  
362,664  
389,331  
426,664  
495,997  
533,330  
586,663  
655,996  
693,329  
762,662  
799,995  
85,333  
13%  
3
132,266  
162,132  
183,466  
213,333  
260,265  
290,132  
311,465  
341,331  
396,798  
426,664  
469,330  
524,797  
554,663  
610,130  
639,996  
21%  
4
25%  
5
29%  
6
33%  
7
41%  
8
45%  
D8  
(Turn down ratio  
11.5 to 1)  
Z34 Only  
9
49%  
10  
11  
12  
13  
14  
15  
16  
17  
53%  
62%  
67%  
73%  
82%  
87%  
95%  
100%  
SPREADER BARS  
(3 PLACES)  
If a unit is to be installed on a roof curb other than a  
York roof curb, gasketing must be applied to all sur-  
faces that come in contact with the unit underside.  
If a unit is to be installed on an angle iron frame it is  
recommended that it be sized to allow the bottom  
rail to overhang to facilitate installation of conden-  
sate drains (see Fig. 4).  
27”  
CABLES  
RIGGING:  
32”  
(1) RIG WITH SIX CABLES AND THREE SPREADER  
BARS AT LEAST 98” ACROSS THE WIDTH OF THE UNIT.  
(2) CENTER OF GRAVITY INCLUDES ECONOMIZER  
AND POWER EXHAUST.  
ALL PANELS MUST BE SECURED IN  
PLACE WHEN THE UNIT IS LIFTED.  
FIGURE 2 - TYPICAL RIGGING  
10  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
TABLE 8: UNIT WEIGHTS  
TABLE 9: SUPPLY FAN MOTOR VFD WEIGHTS  
COMPONENT  
Basic Unit  
25 TON  
30 TON  
40 TON  
Supply Fan Motor VFD  
230V  
460V  
575V  
4410  
Gas Heat  
4565  
4845  
W/O Bypass  
7.5hp  
60  
60  
25  
25  
50  
50  
50  
30  
30  
60  
60  
60  
267 MBH  
533 MBH  
800 MBH  
180  
320  
-
180  
320  
-
180  
320  
450  
10hp  
15hp  
75  
Electric Heat  
20hp  
75  
40KW  
80KW  
108KW  
40  
105  
110  
40  
105  
110  
40  
105  
110  
25hp  
115  
W/Bypass  
7.5hp  
Hot Water Heat  
1 Row Coil  
2 Row Coil  
70  
85  
70  
85  
70  
85  
155  
155  
185  
185  
255  
90  
90  
120  
120  
155  
155  
155  
10hp  
Steam Heat  
85  
Blower  
15hp  
140  
140  
140  
1 Row Coil  
85  
85  
20hp  
Forward Curve Fan (Std Fan)  
FC IGV  
0
0
0
25hp  
155  
135  
155  
155  
135  
155  
175  
155  
180  
Air Foil Fan  
AF IGV  
TABLE 10: EXHAUST FAN MOTOR VFD WEIGHTS  
Motor - Supply Fan  
Exhaust Fan Motor  
W/O Bypass  
230V  
460V  
575V  
7.5hp  
10hp  
15hp  
20hp  
25hp  
110  
145  
200  
240  
-
-
-
145  
200  
240  
300  
145  
200  
240  
300  
5hp  
7.5hp  
10hp  
15hp  
15  
50  
50  
65  
10  
15  
15  
40  
20  
20  
20  
50  
Supply Fan Motor VFD  
See Table 9  
Refrigeration  
T-Coat Evap.  
T-Coat cond.  
Hot Gas Bypass  
32  
32  
10  
30  
30  
10  
40  
40  
10  
NOTE: If the Millennium is VAV with ERV, add the  
weight of an exhaust VFD - it will be in the unit.  
.
Low Ambient Head Pressure Control  
CENTER OF  
GRAVITY  
208-230/380/460  
575  
5
25  
5
25  
5
25  
RIGHT END  
CONDENSER  
COILS  
C
REAR  
B
Filters  
70  
6" Rigid  
70  
70  
D
1
Exhaust  
X
Exhaust Type  
92”  
Barometric  
Modulated  
Exhaust Motor  
45  
140  
65  
275  
65  
275  
Y
A
FRONT  
240”  
5hp  
7.5hp  
10hp  
80  
80  
110  
145  
80  
110  
145  
200  
110  
145  
200  
1
FIGURE 3 - CENTER OF GRAVITY  
1.  
15hp  
200  
Refer to Tables 11 and 12 for A, B, C, D and X and Y  
data respectively.  
Exhaust Motor VFD  
See Table 10  
Economizer  
Std. Econ.  
Econ. w/ERV  
235  
235  
50  
235  
50  
50  
Control  
15  
Disconnect  
110V outlet  
Optilogic  
15  
55  
20  
15  
55  
20  
55  
20  
Roof Curb  
415  
Partial Curb  
415  
415  
1.  
If ERV and Supply Fan VAV are selected, add the  
weight of an Exhaust VFD, Table 9.  
Johnson Controls Unitary Products  
11  
       
882108-YIM-B-1012  
RIGGING AND HANDLING  
This unit is not designed to be handled with a fork-truck.  
All panels must be secured in place when the unit  
is lifted.  
Exercise care when moving the unit. Do not remove any  
packaging until the unit is near the place of installation. Rig  
the unit by attaching cable slings to the lifting lugs provided in  
the unit base rails. Spreaders MUST be used across the top  
of the unit. Refer to Figure 2.  
The condenser coils should be protected from  
damage by the rigging cables with plywood or  
other suitable material.  
An adhesive backed cover is provided over the  
outside of the combustion air inlet opening on gas  
fired units to prevent moisture from entering the  
unit which could cause damage to electrical com-  
ponents. Allow this closure label to remain in place  
until the combustion air hood is to be installed  
(Refer to Figures 7).  
•
Rig with six cables and spread with three 98-inch  
spreaders across width of unit.  
•
•
Refer to Tables 8 and 11 for unit weight.  
Center of gravity includes economizer, exhaust or return  
air fan (Refer to Table 12).  
TABLE 11: UNIT CORNERWEIGHT  
25 TON  
30 TON  
40 TON  
UNIT  
DESCRIPTION  
A
B
C
D
A
B
C
D
A
B
C
D
Basic Unit  
870  
949  
1352  
1239  
930  
972  
1360  
1303  
969  
969  
1454  
1482  
1454  
Basic Unit With  
Economizer  
1018  
994  
1111  
1313  
1418  
1203  
1300  
1076  
1073  
1124  
1328  
1403  
1272  
1403  
1058  
1102  
1058  
1055  
1482  
1570  
Basic Unit With  
Economizer and  
Gas or Electric Heat  
1084  
1073  
1275  
1503  
1485  
Basic Unit With  
Economizer and  
Gas or Electric Heat  
and Power Exhaust  
1220  
1275  
1318  
1262  
1275  
1410  
1410  
1335  
1278  
1551  
NOTES: Basic Unit = cooling only, 10hp FC fan.  
+ Econ = +235lb  
+ Heat = single stage gas, 180 lb  
+ Power Exhaust = modulating 7.5hp  
CLEARANCES  
TABLE 12: UNIT CENTER OF GRAVITY  
25 TON  
30 TON  
40 TON  
All units require certain clearances for proper operation and  
service. Installer must make provisions for adequate combus-  
tion and ventilation air in accordance with section 5.3, Air for  
Combustion and Ventilation of the National Fuel Gas Code  
ANSI Z223.1 or Sections 7.2, 7.3 or 7.4 of CAN/CGA B149  
installation codes-Latest Edition and/or applicable provisions  
of the local building codes. Refer to Figure 8 for clearances  
required for combustible construction, servicing, and proper  
unit operation.  
MODEL  
X
Y
X
Y
X
Y
Basic Unit  
99”  
48”  
100”  
110”  
47”  
96”  
46"  
Basic Unit /w  
Econ.  
110”  
48”  
48”  
47”  
46”  
100”  
99”  
46"  
45"  
Basic Unit /w  
Econ. & Gas or  
Elect. Heat,  
Steam or Hot  
Water Heat  
104”  
118”  
104”  
114”  
Basic Unit /w  
Econ. & Gas or  
Elect. Heat, &  
Power Exhaust  
47”  
46”  
111”  
45"  
(COOLING OPERATION) Do not permit overhang-  
ing structures or shrubs to obstruct condenser air  
discharge outlet, combustion air inlet or vent out-  
lets.  
12  
Johnson Controls Unitary Products  
       
882108-YIM-B-1012  
When the unit is equipped with power exhaust fans or return  
air fan the return duct should have a 90 elbow before opening  
to the building space to abate noise.  
(GAS HEATING OPERATION)  
The supply and return air duct systems should be designed  
for the CFM and static pressure requirements of the job. They  
should NOT be sized to match the dimensions of the duct  
connections on the unit.  
Excessive exposure to contaminated combustion  
air will result in safety and performance related  
problems. To maintain combustion air quality, the  
recommended source of combustion air is the out-  
door air supply.  
If the unit is equipped with hot water or steam heat then the  
supply air direction will be down only.  
The outdoor air supplied for combustion should be  
free from contaminants due to chemical exposure  
that may be present from the following sources:  
AIR HOODS FOR FIXED OUTSIDE AIR  
(UNITS WITH MANUAL ECONOMIZER)  
These hoods are factory installed. The dampers may be  
adjusted by loosening the thumb screw, turning the lever to  
the desired position, and retightening the thumb screw.  
•
•
•
•
•
Commercial buildings  
Indoor pools  
Laundry rooms  
Hobby or craft rooms  
Chemical storage areas  
AIR HOODS FOR ECONOMIZER  
The following substances should be avoided to  
maintain outdoor combustion air quality:  
There are (3) economizer outside air intake hoods provided  
with the unit. The hood on the end of the unit is factory  
mounted. The (2) front and rear hoods are made operational  
per the following instructions.  
•
•
•
•
•
•
•
•
•
•
•
•
•
Permanent wave solutions  
Chlorinated waxes and cleaners  
Chlorine based swimming pool cleaners  
Water softening chemicals  
De-icing salts or chemicals  
Carbon tetrachloride  
Remove the screws holding the economizer hood shipping  
covers in place. Discard covers.  
Rotate the hoods out (each hood is hinged in the lower cor-  
ner). Secure the hoods with screws along the top and sides.  
Halogen type refrigerants  
Apply a bead of RTV sealer along the edge of both hoods  
and each pivot joint to prevent water leakage.  
Cleaning solvents (such as perchloroethylene)  
Printing inks, paint removers, varnishes, etc.  
Hydrochloric acid  
Cements and glues  
Antistatic fabric softeners for clothes dryers  
Masonry acid washing materials  
Seal any unused screw holes with RTV or by replacing the  
screw.  
AIR HOODS FOR EXHAUST AIR  
When furnished, these hoods and dampers are factory  
installed.  
DUCTWORK  
CONDENSATE DRAIN  
Ductwork should be designed and sized according to the  
methods in Manual Q of the Air Conditioning Contractors of  
America (ACCA).  
There is one condensate drain connection. Trap the connec-  
tion per Figure 4. The trap and drain lines should be pro-  
tected from freezing.  
A closed return duct system should be used. This will not pre-  
clude use of economizers or outdoor fresh air intake. The  
supply and return air duct connections at the unit should be  
made with flexible joints to minimize noise.  
Plumbing must conform to local codes. Use a sealing com-  
pound on male pipe threads. Install condensate drain lines  
from the 1-1/2 inch NPT female connections on the unit to an  
open drain.  
Johnson Controls Unitary Products  
13  
         
882108-YIM-B-1012  
FILTERS  
U
N
I
T
B
A
S
E
Throwaway or rigid filters are supplied with each unit. Filters  
must always be installed ahead of evaporator coil and must  
be kept clean or replaced with same size and type. Dirty fil-  
ters will reduce the capacity of the unit and will result in  
frosted coils or safety shutdown. Required filter sizes are  
shown in Table 15. The unit should not be operated without  
filters properly installed.  
D
R
A
I
N
C
O
N
N
E
C
T
I
O
N
F
A
C
T
O
R
Y
I
N
S
T
A
L
L
E
D
Y
R
O
O
F
C
U
R
R
B
O
P
E
R
I
M
E
T
E
R
S
T
U
P
P
C
O
R
T
S
R
U
T
U
R
E
H
THERMOSTAT (CONSTANT VOLUME UNITS)  
F
I
E
L
D
S
U
P
P
L
I
E
D
T
7
3
0
0
T
H
E
R
M
O
S
T
A
T
S
U
B
B
A
S
E
Y
-
M
I
N
I
M
U
M
2
"
H
-
1
/
2
"
P
L
U
S
T
O
T
A
L
S
T
A
T
I
C
P
R
E
S
S
U
R
E
-
M
I
N
I
M
U
M
R
C
G
Y
1
Y
2
Y
3
Y
4
W
1
W
2
A
1
C
T
T
FIGURE 4 - RECOMMENDED DRAIN PIPING  
SERVICE ACCESS  
R
E
M
O
T
E
2
T
H
O
4
7
0
2
2
2
4
S
E
N
S
O
R
R
G
Access to all serviceable components is provided by the fol-  
lowing hinged doors:  
E
Q
U
I
P
.
G
N
D
.
Y
1
L
1
L
2
L
3
Y
Y
2
3
T
B
1
A
B
C
Y
W
W
4
1
•
•
Furnace compartment  
1
2
P
O
W
E
R
S
U
P
P
L
Y
Supply Air Fan compartment Evaporator Coil compart-  
ment (three doors)  
A
C
P
O
W
E
R
W
I
R
I
N
G
•
•
•
Filter compartment economizer compartment (two doors)  
Power Exhaust compartment (two doors)  
Main control panels (one door)  
FIGURE 5 - TYPICAL THERMOSTAT WIRING  
The thermostat, if used, should be located on an inside wall  
approximately 56 inches above the floor where it will not be  
subject to drafts, sun exposure or heat from electrical fixtures  
or appliances. Follow manufacturer's instructions enclosed  
with sensor for general installation procedure (See Figure 5).  
Refer to Table 13 for control wire sizing and maximum length.  
Refer to Figure 1 for location of these access panels.  
TABLE 13: CONTROL WIRE SIZES  
Make sure that all screws and panel latches are  
replaced and properly positioned on the unit to  
maintain an air-tight seal.  
WIRE SIZE  
20 AWG  
MAXIMUM LENGTH  
100 Feet  
COMPRESSORS  
18 AWG  
150 Feet  
Units are shipped with compressor mountings factory-  
adjusted and ready for operation.  
SPACE SENSOR (VARIABLE AIR VOLUME UNITS)  
The space sensor, if used, should be located on an inside  
wall approximately 56 inch above the floor where it will not be  
subject to drafts, sun exposure or heat from electrical fixtures  
or appliances. Follow manufacturer's instructions enclosed  
with sensor for general installation procedure.  
DO NOT loosen compressor mounting bolts.  
14  
Johnson Controls Unitary Products  
               
882108-YIM-B-1012  
Refer to Figure 5 for typical field wiring and to the appropriate  
unit wiring diagram mounted inside control doors for control  
circuit and power wiring information.  
POWER AND CONTROL WIRING  
Field wiring to the unit must conform to provisions of National  
Electrical Code (NEC) ANSI / NFPA 70-Latest Edition and / or  
local ordinances. The unit must be electrically grounded in  
accordance with the NEC and / or local codes. Voltage toler-  
ances which must be maintained at the compressor terminals  
during starting and running conditions are indicated on the  
unit Rating Plate and Table 1.  
POWER WIRING DETAIL  
Units are factory wired for the voltage shown on the unit  
nameplate. The main power block requires copper wires.  
Refer to Electrical Data Tables 17 through 28 to size power  
wiring, fuses and disconnect switch. All field supplied wiring,  
fuses and disconnects must comply with applicable NEC  
codes.  
The internal wiring harnesses furnished with this unit are an  
integral part of the design certified unit. Field alteration to  
comply with electrical codes should not be required. If any of  
the wire supplied with the unit must be replaced, replacement  
wire must be of the type shown on the wiring diagram and the  
same minimum gauge as the replaced wire.  
Power wiring is brought into the unit through the side of the  
baserail or the bottom of the unit/control box inside the curb.  
The baserail has a 2-1/2” diameter hole for field wiring and a  
3-5/8” hole is provided for a through-the-curb connection. A  
removable patch plate covers both the openings.  
Power supply to the unit must be NEC Class 1 and must  
comply with all applicable codes. A disconnect switch must  
be provided (factory option available). The switch must be  
separate from all other circuits. Wire entry at knockout open-  
ings requires conduit fittings to comply with NEC and/or Local  
Codes. Refer to Figures 11, 12, 13, and 14 for installation  
location of openings.  
Waterproof connections MUST be used to ensure  
that water cannot penetrate the roof or roof curb.  
If installing a field mounted disconnect on the unit, refer to  
Figure 15 for the recommended mounting location.  
Unitstrut™ or equivalent rails should be mounted as shown to  
provide structure for mounting. The location of the rails  
should be adjusted to fit the disconnect within the dimensions  
shown. Conduit run from the disconnect to the power entry  
location in the baserail should be routed so that it does not  
interfere with the doors of the unit access panels.  
ERV  
The ERV [Energy Recovery Ventilation] is a separate air han-  
dler that attaches to the exhaust end of the 25-40T Millen-  
nium packaged rooftop unit. The ERV is shipped separately  
and assembled to the Millennium at the jobsite. An 'ERV' Mil-  
lennium is shipped with an end configuration and electric  
hookups designed to mate with the ERV. This option is avail-  
able only with the Simplicity® control, and no other power  
exhaust option can be supplied if an ERV is selected.  
The ERV incorporates a rotating heat exchange wheel and a  
pair of exhaust blowers. It exhausts return air through the  
wheel, capturing the thermal energy of the exiting hot or cold  
air as it passes. As the wheel rotates, the incoming airstream,  
pulled through by the supply fan, regains that energy.  
Use care to avoid damage when drilling holes for  
the disconnect mounting.  
NOTE: Since not all local codes allow mounting a discon-  
nect on the unit, please confirm compliance with  
local code before mounting a disconnect on the unit.  
The Millennium ERV has a terminal block and mating con-  
nectors to simplify hooking up the two systems. The controls  
of both units are factory set to interact properly. Power for the  
ERV blower motors and controls is provided through the Mil-  
lennium unit. The Millennium /ERV dataplate information  
includes the ERV electrical load.  
Electrical wiring must be sized properly to carry the load.  
Each unit must be wired with a separate branch circuit fed  
directly from the meter panel and properly fused.  
The Millennium Simplicity® control has parameters for the  
ERV; refer to the parameter list. When economizer and ERV  
options are selected on the same unit, the Simplicity® control  
and the ERV have specific connections and internal rules for  
that operation.  
When connecting electrical power and control wir-  
ing to the unit, waterproof connectors MUST BE  
USED so that water or moisture cannot be drawn  
into the unit during normal operation. The above  
waterproofing conditions will also apply when  
installing a field-supplied disconnect switch.  
Also refer to the ERV Installation Instructions packaged with  
the ERV.  
Johnson Controls Unitary Products  
15  
     
882108-YIM-B-1012  
GAS HEATING  
On VAV units with gas fired furnace, ALL INDIVID-  
UAL ROOM DAMPER BOXES MUST BE CON-  
TROLLED FULL OPEN DURING HEATING  
OPERATION TO ENSURE PROPER AIRFLOW  
OVER THE FURNACE. A control contact powered  
by the “VAV OPEN” terminals on the Simplicity®  
control is provided for the damper box interlock.  
this contact is normally open, and is closed during  
heating operation.  
FIGURE 6 - TYPICAL GAS PIPING CONNECTION  
Gas piping recommendations:  
GAS PIPING  
1. A drip leg and a ground joint union must be installed in  
the gas piping.  
Proper sizing of gas piping depends on the cubic feet per  
hour of gas flow required, specific gravity of the gas and the  
length of run. National Fuel Gas Code Z223.1-Latest Edition  
should be followed in all cases unless superseded by local  
codes or gas company requirements. Refer to Table 14.  
2. When required by local codes, a manual shut-off valve  
will have to be installed outside of the unit.  
3. Use wrought iron or steel pipe for all gas lines. Pipe dope  
should be applied sparingly to male threads only.  
The heating value of the gas may differ with locality. The  
value should be checked with the local gas utility.  
TABLE 14: PIPE SIZES  
NOMINAL IRON PIPE, SIZE  
LENGTH IN  
FEET  
1
1
1
1-1/4 IN.  
1-1/2 IN.  
2 IN.  
Natural gas may contain some propane. Propane,  
is an excellent solvent and will quickly dissolve  
white lead or most standard commercial pipe seal-  
ing compounds. Therefore, special shellac base  
pipe dope compounds such as Gaskolac or Stalas-  
tic, and compounds such as Rectorseal #5,  
Clyde’s or John Crane must be applied for wrought  
iron or steel pipe.  
10  
20  
30  
40  
50  
60  
70  
80  
1,050  
1,600  
3,050  
2,100  
1,650  
1,450  
1,270  
1,150  
1,050  
990  
730  
1,100  
590  
890  
-
-
-
-
-
760  
-
-
-
-
4. All piping should be cleaned of dirt and scale by ham-  
mering on the outside of the pipe and blowing out the  
loose particles. Before initial start-up, be sure that all of  
the gas lines external to the unit have been purged of air.  
1.  
Maximum capacity of pipe in cubic feet of gas  
per hour (based upon a pressure drop of 0.3 inch  
water column and 0.6 specific gravity gas.  
NOTE: There may be a local gas utility requirement specify-  
ing a minimum diameter for gas piping. All units  
require a 1-1/4 inch pipe connection at the entrance  
fitting. Line should not be sized smaller than the  
entrance fitting size.  
5. The gas supply should be a separate line and installed in  
accordance with all safety codes as prescribed under  
Limitations. After the gas connections have been com-  
pleted, open the main shutoff valve admitting normal gas  
pressure to the mains. Check all joints for leaks with  
soap solution or other material suitable for the purpose.  
NEVER USE A FLAME.  
GAS CONNECTION  
6. The furnace and its individual manual shut-off valve must  
be disconnected from the gas supply piping system  
during any pressure testing of that system at test pres-  
sures in excess of 0.5 psig.  
The gas supply line should be routed within the space and  
penetrate the roof at the gas inlet connection of the unit.  
Refer to Figures 11 through 14 to locate the access opening.  
Typical supply piping arrangements are shown in Figure 6.  
16  
Johnson Controls Unitary Products  
         
882108-YIM-B-1012  
VENT AND COMBUSTION AIR  
NOTE: All the hoods and hardware are shipped within the  
evaporator section. Each hood must be properly  
attached to the furnace doors to assure proper  
operation and compliance with CSA/ETL safety cer-  
tification. (Refer to Figure 7.)  
Disconnect gas piping from unit when leak testing  
at pressures greater than 0.5 psig. Pressures  
greater than 0.5 psig will cause gas valve damage  
resulting in a hazardous condition. If gas valve is  
subjected to pressure greater than 0.5 psig, it must  
be replaced.  
The products of combustion are discharged horizontally  
through hooded openings in the gas heat access doors.  
(Figure 7)  
7. A 1/8 inch N.P.T. plugged tapping, accessible for test  
gage connection, must be installed immediately  
1. Remove the shipping covers that are attached to the  
heat section door covering the flue outlets.  
upstream of the gas supply connection to the furnace.  
EXHAUST VENT OUTLET  
2. Locate the flue which is shipped in the evaporator sec-  
tion.  
3. Place the flue over the flue outlet and attach with screws  
provided.  
4. Refer to the Gas Furnace Operation Instruction in the  
Start-up Section of this manual for further instructions.  
COMBUSTION  
AIR INLET  
VENT FLUE  
ASSEMBLY  
REMOVE SHIPPING  
HEAT SECTION DOOR  
LABELS PRIOR TO  
VENT INSTALLATION  
FIGURE 7 - VENT AND COMBUSTION AIR  
HOODS  
10'  
LEFT  
RIGHT  
END  
END  
60"  
60"  
60"  
FRONT  
60"  
REAR  
* Front is the side with access to the Electrical/Gas Controls  
LEFT  
60"  
60"  
60"  
60"  
10'  
RIGHT  
REAR  
FRONT  
TOP  
NOTE: DO NOT use the unit roof to support any type of  
structure bracing.  
FIGURE 8 - CLEARANCES  
Johnson Controls Unitary Products  
17  
     
882108-YIM-B-1012  
ELECTRIC HEAT  
Units with electric heat are fully wired and operational when  
shipped. Constant volume units are designed for two equal  
steps of capacity for 80 and three for 108 kWH heat; 40 kW  
heat is one step only. Heat outputs on VAV units are all turned  
on together at full heat capacity.  
There are no provisions in the coil or control  
sequence to prevent freezing of condensate. The  
control valve, piping and field installed wiring con-  
nections are particularly vulnerable because they  
are installed in the vestibule outside of the condi-  
tioned air stream. The installing party will be  
responsible for properly insulating and installing  
power and control wiring, to the actuator and pip-  
ing.  
HOT WATER HEAT  
The YORK Millennium units (25, 30, and 40 Ton sizes) can be  
furnished with a YORK hot water coil as the heat source. One  
or two row coil units will be factory installed in the heating  
section.  
In one row hot water coil systems DO NOT exceed  
a 40 gallons per minute flow rate.  
NOTE: The hot water control valve will not be provided. The  
installer will need to provide a hot water control  
valve, to connect the hot water piping and power  
wiring at the job site for the hot water heat section to  
be operational.  
In two row hot water coil systems DO NOT exceed  
an 80 gallons per minute flow rate.  
Condensate will freeze on the control valve and  
piping if they are not properly insulated. Insulating  
the control valve and piping is the responsibility of  
the installing party.  
PIPING CONNECTIONS  
DO NOT use hot water coils as steam coils under  
any circumstances.  
The hot water piping must enter the unit through the floor of  
the heat section compartment. The access doors to the com-  
partment are gasketed so the compartment can be sealed.  
However, as added protection for water leakage into the  
space, the piping access holes should be sealed with a heat  
resistant mastic Figure 9 shows the location of the compart-  
ment and piping connections.  
All piping, control valves, and wiring that is field  
installed must be properly insulated and conform  
to all local and national codes.  
NOTE: For all hot water coils the entering water tempera-  
ture should not exceed 200°F.  
The hot water coil is located downstream of the supply air fan  
and just above the supply air opening in the bottom of the  
unit.  
Piping access holes should be sealed with a heat  
resistant mastic to prevent damage to equipment.  
Refer to Tables 50 through 58 and Figures 27 through 40 for  
flow rate and capacity.  
18  
Johnson Controls Unitary Products  
     
882108-YIM-B-1012  
DO NOT use tin based solder. Brazing with tin  
based solder could cause equipment damage or  
possible injury to tenants of the structure that is  
being conditioned.  
All piping and control valves, and wiring that is  
field installed must be properly insulated and con-  
form to all local and national codes.  
There are no provisions in the coil or control  
sequence to prevent freezing of condensate. The  
control valve, piping and field installed wiring con-  
nections are particularly vulnerable because they  
are installed in the vestibule outside of the condi-  
tioned air stream. The installing party will be  
responsible for properly insulating and installing  
power and control wiring, to the actuator and pip-  
ing.  
(
1
O
R
2
R
O
W
)
C
O
N
D
E
N
S
I
N
G
H
O
T
W
A
I
T
E
R
S
E
C
T
I
O
N
C
O
L
2
6
"
I
N
L
E
T
(
2
"
)
O
U
T
L
E
T
(
2
"
)
O
U
T
S
I
D
E
O
F
1
5
.
8
"
B
A
S
E
R
A
I
L
1
1
.
8
8
"
8
.
3
8
"
DO NOT use steam coils as hot water coils under  
any circumstances.  
2
.
2
5
"
2
.
5
5
"
8
8
.
7
5
"
H
E
A
T
S
E
C
T
I
E
O
N
C
C
O
M
P
A
R
T
M
N
T
L
In steam coil systems, the steam pressure shall  
not exceed 15 PSI.  
FIGURE 9 - HOT WATER PIPING CROSS-SEC-  
TION  
PIPING CONNECTIONS  
STEAM HEAT  
Refer to Tables 46 through 49 and Figures 41 and 42 for flow  
rate and capacity.  
The YORK Millennium units (25, 30 and 40 Ton sizes) can be  
furnished with a YORK single row steam coil. YORK steam  
coils are a factory installed option.  
The steam piping must enter the unit through the floor of the  
heat section compartment. The access doors to the compart-  
ment are gasketed so the compartment can be sealed. How-  
ever, as added protection for condensate leakage into the  
space, the piping access holes should be sealed with a heat  
resistant mastic. The following figure illustrates the location of  
the compartment and piping connections.  
T
O
P
V
I
E
W
C
O
N
D
E
N
S
I
N
G
S
T
E
O
A
M
S
E
C
T
I
O
N
C
I
L
2
6
"
O
U
T
L
E
T
(
1
1
/
2
"
)
O
U
T
S
I
D
E
O
F
1
5
.
8
"
I
N
L
E
T
(
2
"
)
B
A
S
E
R
A
I
L
8
"
8
.
3
8
"
2
.
5
5
"
9
"
Piping access holes should be sealed with a heat  
resistant mastic to prevent damage to equipment.  
8
8
.
7
5
"
H
E
A
T
S
E
C
T
I
E
O
N
C
O
M
P
A
R
T
M
N
T
C
L
FIGURE 10 - STEAM PIPING CROSS-SECTION  
NOTE: The steam control valve, power and control wiring to  
the actuator of the valve is the responsibility of the  
installing party.  
DO NOT use tin based solder. Brazing with tin  
based solder could cause equipment damage or  
possible injury to tenants of the structure that is  
being conditioned.  
Johnson Controls Unitary Products  
19  
       
882108-YIM-B-1012  
STATIC PRESSURE CONTROL PLASTIC TUBING  
EXHAUST STATIC PRESSURE  
On units with variable frequency drives (VFD’s) or inlet guide  
vanes (IGV's) on the supply blower and/or power exhaust  
fans, pressure sensing tubing must be field supplied and  
installed. All tubing must be installed from the transducers  
(located in the unit) to the location in the building (or  
ductwork) where a constant pressure is desired. The tubing  
must also be installed from the transducers to a low-side ref-  
erence to the atmosphere.  
If a modulating-damper or variable frequency drive power  
exhaust is installed, there will be a building pressure sensor  
(BPS) in the control box directly below the Millennium Sim-  
plicity® control. This ± .25 0-5VDC transducer sends a build-  
ing pressure signal to the control. A sensing tube must be  
installed from a representative location in the building to the  
HI port of the transducer. Tubing must also be run between  
the low pressure tap of the transducer to atmospheric pres-  
sure.  
The supply air duct pressure sensor (DPS) is located in the  
control box directly below the Millennium Simplicity® control.  
Plastic tubing (1/4”) must be run from the high pressure tap of  
the transducer to a static pressure tap (field supplied) in the  
supply duct located at a point where constant pressure is  
desired. Tubing must also be run between the low pressure  
tap of the transducer to atmospheric pressure. Changing the  
adjustment is done to the duct pressure setpoint in the con-  
trol.  
Changing the adjustment is done to the building pressure set-  
point in the control.  
Do not run plastic tubes in the supply or return air  
ducts as air movement could cause erroneous  
sensing. If tubes penetrate bottom of unit be sure  
openings are sealed against air and water leak-  
age.  
20  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
RETURN AIR  
SUPPLY AIR  
REAR  
RIGHT  
END  
SEE  
DETAIL  
C
SEE  
DETAIL  
B
64"  
72.25”  
99.5”  
131.5”  
FRONT  
92"  
LEFT  
END  
RIGHT  
END  
REAR  
4.5"  
OPEN  
3.625"  
80.93"  
4.5"  
SEE  
DETAIL  
A
26"  
71.61"  
12"  
MIN  
15.89"  
6.46"  
88.7"  
38.59"  
127.5"  
83"  
FRONT  
LEFT  
END  
C
240"  
L
C
L
4.5"  
TO GAS VALVE  
MANIFOLD  
2-1/2”  
DIA. HOLES  
3-5/8"  
6.45"  
4-5/8”  
7”  
BASE RAIL  
28”  
2.31”  
BASE RAIL  
11”  
Ø 2-1/2”  
1-1/2" FPT  
1-1/4” NPT  
DETAIL B  
(ELECTRICAL CONNECTION)  
DETAIL A  
(DRAIN CONNECTION)  
DETAIL C  
(GAS CONNECTION  
THROUGH CURB)  
FOR COOLING ONLY AND ALL HEATING APPLICATIONS  
FIGURE 11 - BOTTOM SUPPLY AND RETURN  
Johnson Controls Unitary Products  
21  
 
882108-YIM-B-1012  
NOTE:  
RETURN AIR  
SUPPLY AIR  
FACTORY INSTALLED POWER  
EXHAUST CANNOT BE ORDERED  
WITH END RETURN.  
REAR  
RIGHT END  
SEE  
DETAIL  
C
SEE  
DETAIL  
B
7-7/8”  
64"  
72.25”  
99.5”  
24.9”  
"
6.25”  
76-3/8”  
92"  
131.5”  
LEFT END  
FRONT  
RIGHT  
END  
4.5"  
REAR  
OPEN  
80.93"  
3.625"  
26"  
SEE  
DETAIL  
A
71.61"  
6.46"  
12"  
MIN  
15.89"  
C
L
88.7"  
FRONT  
LEFT END  
240"  
TO GAS VALVE  
MANIFOLD  
2-1/2”  
DIA. HOLES  
3-5/8"  
4-5/8”  
7”  
28”  
BASE RAIL  
6.45"  
2.31”  
11”  
BASE RAIL  
2-1/2"  
1-1/2" FPT  
1-1/4” NPT  
DETAIL B  
(ELECTRICAL CONNECTION)  
DETAIL A  
(DRAIN CONNECTION)  
DETAIL C  
(GAS CONNECTION  
THROUGH CURB)  
FOR COOLING ONLY AND ALL HEATING APPLICATIONS  
FIGURE 12 - END RETURN, BOTTOM SUPPLY  
22  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
FRONT SUPPLY: FOR COOLING ONLY APPLICATIONS  
REAR SUPPLY: FOR COOLING ONLY OR GAS HEAT APPLICATIONS  
FRONT  
REAR  
RETURN AIR  
SUPPLY AIR  
REAR  
RIGHT END  
26"  
55"  
64"  
72.25”  
99.5”  
SEE  
DETAIL  
C
8.15"  
SEE  
DETAIL  
B
92"  
131.5”  
FRONT  
LEFT END  
RIGHT  
END  
REAR  
OPEN  
3.625"  
80.93"  
4.5"  
SEE  
DETAIL  
A
12"  
MIN  
6.46"  
38.59"  
83"  
FRONT  
TO GAS VALVE  
MANIFOLD  
240"  
LEFT END  
4.5"  
2-1/2”  
DIA. HOLES  
3-5/8"  
4-5/8”  
7”  
28”  
BASE RAIL  
6.45"  
2.31”  
11”  
BASE RAIL  
2-1/2"  
1-1/2" FPT  
1-1/4” NPT  
DETAIL B  
(ELECTRICAL CONNECTION)  
DETAIL A  
DETAIL C  
(GAS CONNECTION  
THROUGH CURB)  
(DRAIN CONNECTION)  
FOR COOLING ONLY AND ALL HEATING APPLICATIONS  
FIGURE 13 - BOTTOM RETURN, FRONT & REAR SUPPLY  
Johnson Controls Unitary Products  
23  
 
882108-YIM-B-1012  
FRONT SUPPLY: FOR COOLING ONLY APPLICATIONS  
REAR SUPPLY: FOR COOLING ONLY OR GAS HEAT APPLICATIONS  
FRONT  
26  
26"  
"
55"  
REAR  
RETURN AIR  
SUPPLY AIR  
REAR  
RIGHT  
END  
26"  
55"  
7-7/8”  
64”  
24.9”  
6.25”  
72.25”  
SEE  
DETAIL  
C
76-3/8”  
92”  
8.15"  
99.5”  
SEE  
DETAIL  
B
131.5”  
LEFT  
END  
FRONT  
RIGHT  
END  
REAR  
OPEN  
3.625"  
80.93"  
SEE  
DETAIL  
A
12"  
MIN  
6.46"  
FRONT  
LEFT  
END  
240"  
TO GAS VALVE  
MANIFOLD  
2-1/2”  
DIA. HOLES  
3-5/8"  
4-5/8”  
7”  
28”  
BASE RAIL  
6.45"  
2.31”  
11”  
BASE RAIL  
2-1/2"  
1-1/2" FPT  
1-1/4” NPT  
DETAIL B  
(ELECTRICAL CONNECTION)  
DETAIL A  
(DRAIN CONNECTION)  
DETAIL C  
(GAS CONNECTION  
THROUGH CURB)  
FOR COOLING ONLY AND ALL HEATING APPLICATIONS  
FIGURE 14 - END RETURN, FRONT & REAR SUPPLY  
24  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
TABLE 15: GENERAL PHYSICAL DATA  
UNIT SIZE  
25 TON  
30 TON  
40 TON  
UNIT EER / IPLV  
(STANDARD CAPACITY EVAPORATOR)  
1
10.5 / 12.3  
10.5 / 11.2  
10.1 / 11.0  
COMPRESSOR DATA  
4 x 5.7Ton  
Scroll  
NUMBER/SIZE  
TYPE  
4 x 7 Ton  
Scroll  
4 x 8.6 Ton  
Scroll  
UNIT CAPACITY STEPS  
25%, 50%, 75%, 100%  
INDOOR FAN AND DRIVE  
1 / FC  
25%, 50%, 75%, 100%  
25%, 50%, 75%, 100%  
NUMBER / TYPE  
DIAMETER X WIDTH (INCHES)  
HP RANGE  
1 / FC  
22 x 20  
1 / FC  
25 x 22  
22 x20  
7.5 - 20  
10 - 25  
10 - 25  
CFM RANGE (FULL LOAD)  
ESP RANGE  
6,000 - 12,500  
0.2” - 4.0”  
EXHAUST FAN  
1/FC  
6,000 - 15,000  
0.2" - 4.0”  
8,000 - 18,000  
0.2" - 4.0"  
NUMBER/SIZE/TYPE  
HP RANGE (SINGLE MOTOR)  
CFM  
2/FC  
7.5 - 15  
2/FC  
7.5 - 15  
5 - 10  
3,000 - 9,000  
EVAPORATOR COIL  
26.0  
4,000 - 15,000  
4,000 - 18,000  
SIZE (SQ. FT.)  
ROWS/FPI  
26.0  
30.4  
3 / 16  
4 / 16  
4 / 16  
CONDENSER COIL  
65  
SIZE (SQ. FT.)  
ROWS/FPI  
78  
104  
2/16  
2 /16  
2 /16  
CONDENSER FANS  
4 / 24  
QUANTITY / DIAMETER (INCHES)  
NOMINAL CFM  
4 / 24  
7,200  
1.5  
4 / 30  
9,600  
1.5  
6,800  
MOTOR HP  
1.0  
ELECTRIC HEAT  
40 - 108  
KW RANGE  
40 - 108  
1
40 - 108  
1
40 KW / CAPACITY STEPS (CV/VAV)  
80 KW / CAPACITY STEPS (CV/VAV)  
108 KW / CAPACITY STEPS (CV/VAV)  
1
2 / 1  
2 / 1  
2 / 1  
2
2
2
3 / 1  
3 / 1  
3 / 1  
NATURAL GAS HEAT  
UNIT SIZE  
25 TON  
30 TON  
1 / 1  
2 / 1  
-
40 TON  
1 / 1  
267 MBH CAPACITY STEPS (CV/VAV)  
1 / 1  
533 MBH CAPACITY STEPS (CV/VAV)  
2 / 1  
2 / 1  
2
800 MBH CAPACITY STEPS (CV/VAV)  
-
6 / 1  
3 / 1  
267 MBH “MODULATING” CAPACITY STEPS (CV ONLY)  
533 MBH “MODULATING” CAPACITY STEPS (CV ONLY)  
800 MBH “MODULATING” CAPACITY STEPS (CV ONLY)  
6 / 1  
12 / 2  
-
6 / 1  
12 / 2  
17 / 3  
12 / 2  
-
HOT WATER COIL  
22.5” x 65”  
25 Ton  
SIZE (INCHES)  
CAPACITY  
22.5" X 65”  
30 Ton  
22.5" X 65”  
40 Ton  
STEAM COIL  
SIZE (INCHES)  
TYPE  
21" X 65"  
Steam Coil  
FILTERS 2" TA  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
NUMBER / SIZE  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
FACE AREA (SQ. FT.)  
FILTERS 2" PLEATED, 30%  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
NUMBER / SIZE  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
FACE AREA (SQ. FT.)  
FILTERS 65% RIGID W/ 2” TA PREFILTERS  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
NUMBER / SIZE  
4 /16 x 25 & 6 / 20 x 25  
30.4  
4 / 16 x 25 & 6 / 20 x 25  
30.4  
FACE AREA (SQ. FT.)  
FILTERS 95% RIGID W/ 2” TA PREFILTERS  
4 ea. 16 x 25 / 6 ea. 20 x 25  
30.4  
NUMBER / SIZE  
4 ea. 16 x 25 / 6 ea. 20 x 25  
30.4  
4 ea. 16 x 25 / 6 ea. 20 x 25  
30.4  
FACE AREA (SQ. FT.)  
1.  
Cooling Only Unit Efficiency/ Gas Electric Unit Efficiency is 10.0  
2.  
Unit Control Board with 3 heating outputs only, all other Unit Control Boards 2 / 1.  
Johnson Controls Unitary Products  
25  
 
882108-YIM-B-1012  
TABLE 16: REFRIGERANT FACTORY CHARGE R-410A  
CHARGE  
UNIT (TONS)  
MODEL  
SYSTEM #1  
13lb 8oz  
14lb  
SYSTEM #2  
12lb 8oz  
12lb 8oz  
16lb 8oz  
17lb  
SYSTEM #3  
12lb 8oz  
12lb 8oz  
14lb  
SYSTEM #4  
12lb 8oz  
25  
25  
30  
30  
40  
40  
wo/HGBP  
w/HGBP  
wo/HGBP  
w/HGBP  
wo/HGBP  
w/HGBP  
12lb 8oz  
16lb  
18lb 4oz  
16lb 8oz  
17lb 10oz  
18lb 2oz  
14lb 8oz  
19lb 13oz  
20lb 5oz  
18lb 12oz  
19lb 13oz  
20lb 5oz  
17lb 10oz  
18lb 2oz  
TABLE 17: ELECTRICAL DATA 25 TON BASIC UNIT R-410A  
2
Supply Blower  
Motor  
Max Fuse /  
Compressors (each)  
OD Fan Motors  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
Qty  
FLA  
HP  
FLA  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
24.2  
30.8  
46.2  
59.4  
22  
138  
146  
165  
182  
134  
142  
159  
174  
65  
150  
175  
200  
225  
150  
150  
200  
225  
70  
208-3-60  
4
22.4  
149  
35  
4
4.5  
28  
230-3-60  
460-3-60  
4
4
4
22.4  
10.6  
7.7  
149  
75  
35  
16.5  
12  
4
4
4
4.3  
2.15  
1.7  
42  
54  
11  
14  
69  
80  
21  
77  
90  
27  
85  
110  
50  
9
49  
11  
51  
60  
575-3-60  
54  
17  
59  
70  
22  
65  
80  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
26  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
TABLE 18: ELECTRICAL DATA 30 TON BASIC UNIT R-410A  
2
Supply Blower  
Motor  
Max Fuse /  
Compressors (each)  
OD Fan Motors  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
Qty  
FLA  
HP  
FLA  
10  
15  
25  
20  
10  
15  
25  
20  
10  
15  
20  
25  
10  
15  
20  
25  
30.8  
46.2  
74.8  
59.4  
28  
162  
181  
217  
197  
158  
176  
208  
191  
77  
175  
225  
250  
250  
175  
200  
250  
225  
90  
208-3-60  
4
25.0  
164  
39  
4
5.8  
42  
230-3-60  
460-3-60  
4
4
4
25.0  
12.0  
9.0  
164  
100  
78  
39  
19  
14  
4
4
4
5.8  
2.9  
2.2  
68  
54  
14  
21  
86  
100  
110  
125  
60  
27  
93  
34  
102  
59  
11  
17  
66  
80  
575-3-60  
22  
72  
90  
27  
79  
100  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
TABLE 19: ELECTRICAL DATA 40 TON BASIC UNIT R-410A  
2
Supply Blower  
Motor  
Max Fuse /  
Compressors (each)  
OD Fan Motors  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
Qty  
FLA  
HP  
FLA  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
30.8  
46.2  
59.4  
74.8  
28  
182  
201  
218  
237  
179  
196  
211  
229  
97  
200  
225  
250  
300  
200  
225  
250  
250  
110  
125  
125  
150  
80  
208-3-60  
4
30.1  
255  
47  
4
5.8  
42  
230-3-60  
460-3-60  
4
4
4
30.1  
16.7  
12.2  
255  
114  
80  
47  
26  
19  
4
4
4
5.8  
2.9  
2.2  
54  
68  
14  
21  
105  
112  
121  
72  
27  
34  
11  
17  
79  
90  
575-3-60  
22  
85  
100  
110  
27  
91  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
Johnson Controls Unitary Products  
27  
   
882108-YIM-B-1012  
TABLE 20: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Electric Heat Option  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
FLA  
HP  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
FLA  
24.2  
30.8  
46.2  
59.4  
24.2  
30.8  
46.2  
59.4  
22  
Option  
KW  
Applied  
Stages  
Amps  
138  
146  
165  
182  
197  
205  
225  
241  
143  
150  
168  
183  
212  
220  
237  
252  
71  
150  
175  
200  
225  
225  
225  
250  
300  
150  
150  
200  
225  
250  
250  
250  
300  
80  
E4  
40  
80  
30  
1
2
1
2
1
2
3
1
2
3
83  
208-3-60  
4
22.4  
149  
35  
4.5  
E8  
E4  
E8  
E4  
E8  
E1  
E4  
E8  
E1  
60  
167  
92  
28  
40  
36.8  
73.6  
36.8  
73.6  
99.4  
36.8  
73.6  
99.4  
42  
54  
230-3-60  
4
22.4  
149  
35  
4.3  
22  
28  
80  
184  
46  
42  
54  
11  
14  
75  
80  
40  
21  
84  
90  
27  
91  
110  
125  
125  
125  
150  
150  
175  
175  
175  
70  
11  
106  
110  
119  
126  
138  
142  
151  
158  
62  
14  
460-3-60  
4
10.6  
75  
16.5  
2.15  
80  
92  
21  
27  
11  
14  
108  
40  
125  
40  
21  
27  
9
11  
64  
70  
17  
72  
80  
22  
78  
80  
9
92  
110  
110  
110  
125  
150  
150  
150  
150  
11  
94  
575-3-60  
4
7.7  
54  
12  
1.7  
80  
80  
17  
102  
108  
120  
122  
130  
136  
22  
9
11  
108  
108  
17  
22  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
28  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
TABLE 21: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Electric Heat Option  
1
3
MCA  
Breaker  
Size  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
FLA  
HP  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
FLA  
30.8  
46.2  
59.4  
74.8  
30.8  
46.2  
59.4  
74.8  
28  
Option  
KW  
Applied  
Stages  
Amps  
(Amps)  
175  
225  
250  
250  
225  
250  
300  
300  
175  
200  
225  
250  
250  
250  
300  
300  
90  
162  
181  
197  
217  
205  
225  
241  
260  
158  
176  
191  
208  
220  
237  
252  
270  
77  
E4  
40  
80  
30  
1
2
1
2
1
2
3
1
2
3
83  
208-3-60  
4
25.0  
164  
39  
5.8  
E8  
E4  
E8  
E4  
E8  
E1  
E4  
E8  
E1  
60  
167  
92  
42  
40  
36.8  
73.6  
36.8  
73.6  
99.4  
36.8  
73.6  
99.4  
54  
68  
230-3-60  
4
25.0  
164  
39  
5.8  
28  
42  
80  
184  
46  
54  
68  
14  
21  
86  
100  
110  
125  
125  
125  
150  
150  
175  
175  
175  
200  
70  
40  
27  
93  
34  
102  
110  
119  
126  
135  
142  
151  
158  
167  
64  
14  
21  
460-3-60  
4
12.0  
100  
19  
2.9  
80  
92  
27  
34  
14  
21  
108  
40  
125  
40  
27  
34  
11  
17  
72  
80  
22  
78  
90  
27  
84  
100  
110  
110  
125  
125  
150  
150  
150  
150  
11  
94  
17  
102  
108  
114  
122  
130  
136  
142  
575-3-60  
4
9.0  
78  
14  
2.2  
80  
80  
22  
27  
11  
17  
108  
108  
22  
27  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
Johnson Controls Unitary Products  
29  
 
882108-YIM-B-1012  
TABLE 22: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Electric Heat Option  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
FLA  
HP  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
FLA  
30.8  
46.2  
59.4  
74.8  
30.8  
46.2  
59.4  
74.8  
28  
Option  
KW  
Applied  
Stages  
Amps  
182  
201  
218  
237  
205  
225  
241  
260  
179  
196  
211  
229  
220  
237  
252  
270  
97  
200  
225  
250  
300  
225  
250  
300  
300  
200  
225  
250  
250  
250  
250  
300  
300  
110  
125  
125  
150  
125  
125  
150  
150  
175  
175  
175  
200  
80  
E4  
40  
80  
30  
1
2
1
2
1
2
3
1
2
3
83  
208-3-60  
4
30.1  
255  
47  
5.8  
E8  
E4  
E8  
E4  
E8  
E1  
E4  
E8  
E1  
60  
167  
92  
42  
40  
36.8  
73.6  
36.8  
73.6  
99.4  
36.8  
73.6  
99.4  
54  
68  
230-3-60  
4
30.1  
255  
47  
5.8  
28  
42  
80  
184  
46  
54  
68  
14  
21  
105  
112  
121  
110  
119  
126  
135  
142  
151  
158  
167  
72  
40  
27  
34  
14  
21  
460-3-60  
4
16.7  
114  
26  
2.9  
80  
92  
27  
34  
14  
21  
108  
40  
125  
40  
27  
34  
11  
17  
79  
90  
22  
85  
100  
110  
110  
110  
125  
125  
150  
150  
150  
150  
27  
91  
11  
94  
17  
102  
108  
114  
122  
130  
136  
142  
575-3-60  
4
12.2  
80  
19  
2.2  
80  
80  
22  
27  
11  
17  
108  
108  
22  
27  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
30  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
TABLE 23: ELECTRICAL DATA 25 TON W/POWER EXHAUST R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
FLA  
HP  
FLA  
HP  
5
FLA  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
15.2  
22  
155  
162  
170  
163  
170  
177  
182  
190  
196  
199  
206  
213  
150  
156  
164  
157  
164  
170  
175  
181  
187  
190  
196  
202  
72  
175  
175  
200  
175  
200  
200  
225  
225  
225  
250  
250  
250  
150  
175  
175  
175  
175  
175  
200  
200  
225  
225  
250  
250  
80  
7.5  
24.2  
7.5  
10  
5
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
30.8  
46.2  
59.4  
22  
7.5  
10  
5
208-3-60  
4
22.4  
149  
35  
4.5  
7.5  
10  
5
7.5  
10  
5
7.5  
10  
5
28  
15.2  
22  
28  
7.5  
10  
5
28  
230-3-60  
4
4
4
22.4  
10.6  
7.7  
149  
35  
16.5  
12  
4.3  
2.15  
1.7  
15.2  
22  
42  
7.5  
10  
5
28  
15.2  
22  
54  
7.5  
10  
5
28  
7.6  
11  
11  
7.5  
10  
5
76  
80  
14  
80  
90  
7.6  
11  
76  
90  
14  
7.5  
10  
5
80  
90  
14  
83  
90  
460-3-60  
75  
7.6  
11  
85  
100  
100  
110  
110  
110  
125  
60  
21  
7.5  
10  
5
88  
14  
91  
7.6  
11  
92  
27  
7.5  
10  
5
96  
14  
99  
6.1  
9
55  
9
7.5  
10  
5
58  
60  
11  
60  
70  
6.1  
9
57  
60  
11  
7.5  
10  
5
60  
70  
11  
62  
70  
575-3-60  
54  
6.1  
9
65  
80  
17  
7.5  
10  
5
68  
80  
11  
70  
80  
6.1  
9
71  
90  
22  
7.5  
10  
74  
90  
11  
76  
90  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
Johnson Controls Unitary Products  
31  
 
882108-YIM-B-1012  
TABLE 24: ELECTRICAL DATA 30 TON W/POWER EXHAUST R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
Qty  
FLA  
HP  
FLA  
HP  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
FLA  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
22  
186  
193  
212  
205  
212  
227  
222  
228  
244  
241  
248  
263  
180  
186  
204  
198  
204  
218  
213  
219  
233  
230  
236  
250  
88  
200  
200  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
200  
200  
225  
225  
225  
250  
250  
250  
250  
250  
300  
300  
100  
100  
110  
110  
110  
125  
125  
125  
125  
125  
150  
150  
70  
10  
30.8  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
46.2  
59.4  
74.8  
28  
208-3-60  
4
25.0  
164  
39  
4
5.8  
28  
42  
22  
42  
28  
42  
230-3-60  
4
4
4
25.0  
12.0  
9.0  
164  
100  
78  
39  
19  
14  
4
4
4
5.8  
2.9  
2.2  
22  
54  
28  
42  
22  
68  
28  
42  
11  
14  
14  
91  
21  
100  
97  
11  
21  
14  
100  
107  
104  
107  
114  
113  
116  
123  
68  
21  
460-3-60  
11  
27  
14  
21  
11  
34  
14  
21  
9
11  
11  
70  
80  
17  
77  
90  
9
75  
90  
17  
11  
77  
90  
17  
83  
100  
100  
100  
110  
110  
110  
110  
575-3-60  
9
81  
22  
11  
83  
17  
89  
9
88  
27  
11  
90  
17  
96  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
32  
Johnson Controls Unitary Products  
882108-YIM-B-1012  
TABLE 25: ELECTRICAL DATA 40 TON W/POWER EXHAUST R-410A  
2
OD Fan  
Motors  
(each)  
Max Fuse /  
Compressors  
(each)  
Supply Blower  
Motor  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Qty  
RLA  
LRA  
MCC  
Qty  
FLA  
HP  
FLA  
HP  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
FLA  
24  
31  
46  
24  
31  
46  
24  
31  
46  
24  
31  
46  
22  
28  
42  
22  
28  
42  
22  
28  
42  
22  
28  
42  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
9
206  
213  
232  
226  
232  
248  
242  
249  
264  
261  
268  
283  
199  
205  
222  
216  
222  
236  
231  
237  
251  
248  
254  
268  
108  
111  
119  
116  
119  
126  
123  
126  
133  
132  
135  
142  
81  
225  
225  
250  
250  
250  
250  
300  
300  
300  
300  
300  
350  
225  
225  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
110  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
175  
90  
10  
30.8  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
46.2  
59.4  
74.8  
28.0  
42.0  
54.0  
68.0  
14.0  
21.0  
27.0  
34.0  
11.0  
17.0  
22.0  
27.0  
208-3-60  
4
30.1  
225  
47.0  
4
5.8  
230-3-60  
4
4
4
30.1  
16.7  
12.2  
225  
114  
80  
47.0  
26.0  
19.0  
4
4
4
5.2  
2.6  
2.2  
460-3-60  
11  
17  
9
83  
90  
90  
100  
100  
100  
110  
110  
110  
110  
125  
125  
125  
88  
11  
17  
9
90  
96  
575-3-60  
94  
11  
17  
9
96  
102  
100  
102  
108  
11  
17  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
Johnson Controls Unitary Products  
33  
 
882108-YIM-B-1012  
TABLE 26: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
5
7.5  
10  
5
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
16.7  
24.2  
30.8  
15.2  
22  
155  
162  
170  
163  
170  
177  
182  
190  
196  
199  
206  
213  
214  
221  
230  
222  
230  
236  
241  
249  
256  
258  
265  
272  
158  
165  
172  
166  
172  
178  
183  
190  
196  
198  
205  
211  
227  
234  
242  
235  
242  
248  
252  
259  
265  
267  
274  
280  
175  
175  
200  
175  
200  
200  
225  
225  
225  
250  
250  
250  
225  
225  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
175  
175  
175  
175  
175  
200  
200  
200  
225  
225  
250  
250  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
300  
300  
7.5  
24.2  
30.8  
46.2  
59.4  
24.2  
30.8  
46.2  
59.4  
22  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
5
E4  
E8  
E4  
E8  
40  
80  
40  
80  
1
2
1
2
83  
167  
92  
4
4
4
4
22.4 149  
22.4 149  
22.4 149  
22.4 149  
35  
35  
35  
35  
4
4
4
4
4.5  
7.5  
10  
5
7.5  
10  
5
208-3-60  
7.5  
10  
5
7.5  
10  
5
4.5  
4.3  
4.3  
7.5  
10  
5
7.5  
10  
5
7.5  
10  
5
28  
15.2  
22  
28  
7.5  
10  
5
28  
15.2  
22  
42  
7.5  
10  
5
28  
15.2  
22  
54  
7.5  
10  
5
28  
230-3-60  
15.2  
22  
22  
7.5  
10  
5
28  
15.2  
22  
28  
7.5  
10  
5
28  
184  
15.2  
22  
42  
7.5  
10  
5
28  
15.2  
22  
54  
7.5  
10  
28  
34  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
TABLE 26: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
5
7.5  
10  
5
7.6  
11  
79  
82  
80  
7.5  
11  
14  
21  
27  
11  
14  
21  
27  
11  
14  
21  
27  
90  
14  
7.6  
11  
86  
90  
83  
90  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
5
86  
90  
14  
7.6  
11  
89  
90  
E4  
E8  
E1  
40  
1
2
3
46  
4
4
4
10.6  
10.6  
10.6  
75  
75  
75  
16.5  
16.5  
16.5  
4
4
4
2.15  
92  
100  
100  
110  
110  
110  
125  
125  
125  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
7.5  
10  
5
95  
14  
7.6  
11  
98  
99  
7.5  
10  
5
102  
105  
114  
117  
121  
117  
121  
124  
126  
130  
133  
134  
137  
140  
146  
149  
153  
150  
153  
156  
158  
162  
165  
166  
169  
172  
14  
7.6  
11  
7.5  
10  
5
14  
7.6  
11  
7.5  
10  
5
14  
7.6  
11  
460-3-60  
80  
92  
2.15  
7.5  
10  
5
14  
7.6  
11  
7.5  
10  
5
14  
7.6  
11  
7.5  
10  
5
14  
7.6  
11  
7.5  
10  
5
14  
7.6  
11  
108  
125  
2.15  
7.5  
10  
5
14  
7.6  
11  
7.5  
10  
14  
Johnson Controls Unitary Products  
35  
882108-YIM-B-1012  
TABLE 26: ELECTRICAL DATA 25 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
5
7.5  
10  
5
6.1  
9
68  
71  
70  
70  
7.5  
9
11  
6.1  
9
73  
80  
70  
70  
10  
15  
20  
7.5  
10  
15  
20  
7.5  
10  
15  
20  
11  
17  
22  
9
7.5  
10  
5
73  
80  
11  
6.1  
9
75  
80  
E4  
E8  
E1  
40  
1
2
3
40  
4
4
4
7.7  
7.7  
4
54  
12  
12  
54  
4
1.7  
78  
80  
7.5  
10  
5
81  
90  
11  
6.1  
9
83  
90  
84  
90  
7.5  
10  
5
87  
90  
11  
6.1  
9
89  
100  
110  
110  
110  
110  
110  
110  
110  
125  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
98  
7.5  
10  
5
101  
103  
100  
103  
105  
108  
111  
113  
114  
117  
119  
126  
129  
131  
128  
131  
133  
136  
139  
141  
142  
145  
147  
11  
6.1  
9
11  
17  
22  
9
7.5  
10  
5
11  
6.1  
9
575-3-60  
80  
80  
54  
4
1.7  
7.5  
10  
5
11  
6.1  
9
7.5  
10  
5
11  
6.1  
9
7.5  
10  
5
11  
6.1  
9
11  
17  
22  
7.5  
10  
5
11  
6.1  
9
108  
108  
7.7  
12  
4
7.5  
10  
5
11  
6.1  
9
7.5  
10  
11  
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
36  
Johnson Controls Unitary Products  
882108-YIM-B-1012  
TABLE 27: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
22  
186  
193  
212  
205  
212  
227  
222  
228  
244  
241  
248  
263  
230  
236  
256  
249  
256  
271  
265  
272  
287  
285  
291  
307  
180  
186  
204  
198  
204  
218  
213  
219  
233  
230  
236  
250  
242  
248  
265  
259  
265  
279  
274  
280  
294  
292  
298  
312  
200  
200  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
250  
250  
300  
250  
300  
300  
300  
300  
300  
350  
350  
350  
200  
200  
225  
225  
225  
250  
250  
250  
250  
250  
300  
300  
250  
250  
300  
300  
300  
300  
300  
300  
300  
350  
350  
350  
10  
30.8  
46.2  
59.4  
74.8  
30.8  
46.2  
59.4  
74.8  
28  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
E4  
E8  
E4  
E8  
40  
80  
40  
80  
1
2
1
2
83  
167  
92  
4
4
4
4
25.0 164  
25.0 164  
25.0 164  
25.0 164  
39  
39  
39  
39  
4
4
4
4
5.8  
208-3-60  
5.8  
5.8  
5.8  
28  
42  
22  
42  
28  
42  
22  
54  
28  
42  
22  
68  
28  
42  
230-3-60  
22  
28  
28  
42  
22  
42  
28  
42  
184  
22  
54  
28  
42  
22  
68  
28  
42  
Johnson Controls Unitary Products  
37  
882108-YIM-B-1012  
TABLE 27: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
88  
100  
100  
110  
110  
110  
125  
125  
125  
125  
125  
150  
150  
125  
125  
150  
150  
150  
150  
150  
150  
150  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
200  
200  
200  
200  
10  
14  
21  
27  
34  
14  
21  
27  
34  
14  
21  
27  
34  
91  
100  
97  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
100  
107  
104  
107  
114  
113  
116  
123  
121  
124  
133  
130  
133  
140  
137  
140  
147  
146  
149  
156  
153  
156  
165  
162  
165  
172  
169  
172  
179  
178  
181  
188  
E4  
E8  
E1  
40  
1
2
3
46  
4
4
4
12.0 100  
12.0 100  
12.0 100  
19  
19  
19  
4
4
4
2.9  
460-3-60  
80  
92  
2.9  
108  
125  
2.9  
38  
Johnson Controls Unitary Products  
882108-YIM-B-1012  
TABLE 27: ELECTRICAL DATA 30 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
9
11  
17  
9
73  
75  
80  
10  
11  
17  
22  
27  
11  
17  
22  
27  
11  
17  
80  
83  
90  
81  
90  
15  
20  
25  
10  
15  
20  
25  
10  
15  
11  
17  
9
83  
90  
89  
100  
100  
100  
110  
110  
110  
110  
110  
110  
125  
125  
125  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
175  
175  
E4  
40  
1
40  
4
9.0  
78  
14  
4
2.2  
87  
11  
17  
9
89  
95  
93  
11  
17  
9
95  
101  
103  
105  
113  
111  
113  
119  
117  
119  
125  
123  
125  
131  
131  
133  
141  
139  
141  
147  
145  
147  
153  
151  
11  
17  
9
11  
17  
9
575-3-60  
E8  
80  
2
80  
4
9.0  
78  
14  
4
2.2  
11  
17  
9
11  
17  
9
11  
17  
9
11  
17  
9
E1  
108  
3
108  
4
9.0  
78  
14  
4
2.2  
20  
25  
22  
27  
11  
17  
9
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
Johnson Controls Unitary Products  
39  
882108-YIM-B-1012  
TABLE 28: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
24.2  
30.8  
46.2  
22  
206  
213  
232  
226  
232  
248  
242  
249  
264  
261  
268  
283  
230  
236  
256  
249  
256  
271  
265  
272  
287  
285  
291  
307  
201  
207  
224  
218  
224  
238  
233  
239  
253  
251  
257  
271  
242  
248  
265  
259  
265  
279  
274  
280  
294  
292  
298  
312  
225  
225  
250  
250  
250  
250  
300  
300  
300  
300  
300  
350  
250  
250  
300  
250  
300  
300  
300  
300  
300  
350  
350  
350  
225  
225  
250  
250  
250  
250  
250  
250  
300  
300  
300  
300  
250  
250  
300  
300  
300  
300  
300  
300  
300  
350  
350  
350  
10  
30.8  
46.2  
59.4  
74.8  
30.8  
46.2  
59.4  
74.8  
28  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
E4  
E8  
E4  
E8  
40  
80  
40  
80  
1
2
1
2
83  
167  
92  
4
4
4
4
30.1 255  
30.1 255  
30.1 255  
30.1 255  
47  
47  
47  
47  
4
4
4
4
5.8  
208-3-60  
5.8  
5.8  
5.8  
28  
42  
22  
42  
28  
42  
22  
54  
28  
42  
22  
68  
28  
42  
230-3-60  
22  
28  
28  
42  
22  
42  
28  
42  
184  
22  
54  
28  
42  
22  
68  
28  
42  
40  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
TABLE 28: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
11  
14  
21  
108  
111  
119  
116  
119  
126  
123  
126  
133  
132  
135  
142  
121  
124  
133  
130  
133  
140  
137  
140  
147  
146  
149  
156  
153  
156  
165  
162  
165  
172  
169  
172  
179  
178  
181  
188  
110  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
175  
125  
125  
150  
150  
150  
150  
150  
150  
150  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
175  
200  
200  
200  
200  
10  
14  
21  
27  
34  
14  
21  
27  
34  
14  
21  
27  
34  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
E4  
E8  
E1  
40  
1
2
3
46  
4
4
4
16.7  
16.7  
16.7  
114  
114  
114  
26  
26  
26  
4
4
4
2.9  
460-3-60  
80  
92  
2.9  
108  
125  
2.9  
Johnson Controls Unitary Products  
41  
882108-YIM-B-1012  
TABLE 28: ELECTRICAL DATA 40 TON W/ELECTRIC HEAT AND POWER EXHAUST R-410A (CONTINUED)  
2
Compressors  
(each)  
OD Fan Motors Supply Blower  
(each) Motor  
Max Fuse /  
Electric Heat Option  
Pwr Exh Motor  
1
3
MCA  
Breaker  
Size  
(Amps)  
Voltage  
(Amps)  
Model KW Stages Amps Qty RLA LRA MCC  
Qty  
FLA  
HP  
FLA  
HP  
FLA  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
15  
7.5  
10  
0
9
11  
17  
9
81  
83  
90  
10  
11  
17  
22  
27  
11  
17  
22  
27  
11  
17  
22  
27  
90  
90  
100  
100  
100  
110  
110  
110  
110  
125  
125  
125  
110  
110  
125  
125  
125  
125  
125  
125  
125  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
150  
175  
175  
175  
0
88  
15  
20  
25  
10  
15  
20  
25  
10  
15  
20  
25  
11  
17  
9
90  
96  
E4  
E8  
E1  
40  
1
2
3
40  
4
4
4
12.2  
12.2  
12.2  
80  
80  
80  
19  
19  
19  
4
4
4
2.2  
94  
11  
17  
9
96  
102  
100  
102  
108  
103  
105  
113  
111  
113  
119  
117  
119  
125  
123  
125  
131  
131  
133  
141  
139  
141  
147  
145  
147  
153  
151  
153  
0
11  
17  
9
11  
17  
9
11  
17  
9
575-3-60  
80  
80  
2.2  
11  
17  
9
11  
17  
9
11  
17  
9
11  
17  
9
108  
108  
2.2  
11  
17  
9
11  
0
1.  
Minimum Circuit Ampacity.  
2.  
3.  
Dual Element, Time Delay Type.  
HACR type per NEC.  
42  
Johnson Controls Unitary Products  
882108-YIM-B-1012  
DRILL & BOLT  
THROUGH UNIT  
SHEET METAL  
(4 PLACES)  
31"  
MAXIMUM  
6-1/2"  
MINIMUM  
34"  
*
®
UNISTRUT  
1-5/8" W x 7/8" H  
OR EQUIVALENT  
47"  
*34 INCHES IS THE MINIMUM LENGTH REQUIRED TO  
MOUNT TO THE FOUR POINTS SHOWN. THE RAILS CAN  
BE EXTENDED TO MOUNT A TALLER DISCONNECT  
SWITCH, BUT THESE FOUR POINTS SHOULD BE USED  
TO MOUNTTHE RAILS TO THE UNIT.  
MAXIMUM DOOR SWING  
OF HEAT SECTION  
DOOR WHEN OPEN  
FIGURE 15 - FIELD INSTALLED DISCONNECT  
15.00  
FIGURE 16 - 40 TON CONDENSER DETAIL  
Johnson Controls Unitary Products  
43  
   
882108-YIM-B-1012  
2
3
5
.
0
0
9
5
.
0
9
3
8
.
5
9
2
6
.
0
0
7
1
.
6
1
R
E
T
U
R
N
S
U
P
P
L
Y
8
3
.
0
0
A
I
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A
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N
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G
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1
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4
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0
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0
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O
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5
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C
U
R
B
G
A
S
K
E
T
1
.
7
5
"
4
.
6
3
"
2
.
5
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"
1
.
5
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"
2
"
X
4
"
N
A
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R
(
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4
.
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2
.
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1
4
G
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E
C
T
I
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"
A
-
A
"
FIGURE 17 - PARTIAL ROOF CURB MODEL 1RC0455P  
44  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
order to use the indoor blower tables for high altitude applica-  
tions, certain corrections are necessary.  
CFM, STATIC PRESSURE, AND POWER - ALTI-  
TUDE AND TEMPERATURE CORRECTIONS  
A centrifugal fan is a "constant volume" device. This means  
that, if the rpm remains constant, the CFM delivered is the  
same regardless of the density of the air. However, since the  
air at high altitude is less dense, less static pressure will be  
generated and less power will be required than a similar  
application at sea level. Air density correction factors are  
shown in Table 29 and Figure 18.  
The information below should be used to assist in application  
of product when being applied at altitudes at or exceeding  
1000 feet above sea level.  
The air flow rates listed in the standard blower performance  
tables are based on standard air at sea level. As the altitude  
or temperature increases, the density of air decreases. In  
TABLE 29: ALTITUDE CORRECTION FACTORS  
ALTITUDE (FEET)  
AIR TEMP  
0
1000  
1.022  
1.002  
0.982  
0.964  
0.947  
0.929  
0.912  
2000  
0.986  
0.966  
0.948  
0.930  
0.913  
0.897  
0.880  
3000  
0.950  
0.931  
0.913  
0.896  
0.880  
0.864  
0.848  
4000  
0.916  
0.898  
0.880  
0.864  
0.848  
0.833  
0.817  
5000  
0.882  
0.864  
0.848  
0.832  
0.817  
0.802  
0.787  
6000  
0.849  
0.832  
0.816  
0.801  
0.787  
0.772  
0.758  
7000  
0.818  
0.802  
0.787  
0.772  
0.758  
0.744  
0.730  
8000  
0.788  
0.772  
0.757  
0.743  
0.730  
0.716  
0.703  
9000  
0.758  
0.743  
0.729  
0.715  
0.702  
0.689  
0.676  
10000  
0.729  
0.715  
0.701  
0.688  
0.676  
0.663  
0.651  
40  
50  
1.060  
1.039  
1.019  
1.000  
0.982  
0.964  
0.946  
60  
70  
80  
90  
100  
The examples below will assist in determining the airflow per-  
formance of the product at altitude.  
blower tables to select the blower speed and the BHP  
requirement.  
Example 1: What are the corrected CFM, static pressure,  
and BHP at an elevation of 5,000 ft. if the blower performance  
data is 6,000 CFM, 1.5 IWC and 4.0 BHP?  
Solution: As in the example above, no temperature informa-  
tion is given so 70°F is assumed.  
The 1.5" static pressure given is at an elevation of 5,000 ft.  
The first step is to convert this static pressure to equivalent  
sea level conditions.  
Solution: At an elevation of 5,000 ft the indoor blower will still  
deliver 6,000 CFM if the rpm is unchanged. However, Table  
29 must be used to determine the static pressure and BHP.  
Since no temperature data is given, we will assume an air  
temperature of 70°F. Table 29 shows the correction factor to  
be 0.832.  
Sea level static pressure = 1.5 / .832 = 1.80"  
Enter the blower table at 6000 sCFM and static pressure of  
1.8". The rpm listed will be the same rpm needed at 5,000 ft.  
Corrected static pressure = 1.5 x 0.832 = 1.248 IWC  
Corrected BHP = 4.0 x 0.832 = 3.328  
Suppose that the corresponding BHP listed in the table is 3.2.  
This value must be corrected for elevation.  
Example 2: A system, located at 5,000 feet of elevation, is to  
BHP at 5,000 ft = 3.2 x .832 = 2.66  
deliver 6,000 CFM at a static pressure of 1.5". Use the unit  
Johnson Controls Unitary Products  
45  
   
882108-YIM-B-1012  
FIGURE 18 - ALTITUDE/TEMPERATURE CONVERSION FACTOR  
46  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
1, 2  
TABLE 30: FAN PERFORMANCE - 25 TON  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
AIRFLOW CFM  
0.2  
1.2  
2.2  
3.2  
0.4  
1.4  
2.4  
3.4  
0.6  
0.8  
1.0  
3
3
3
3
3
RPM  
302  
341  
380  
416  
452  
492  
532  
578  
623  
639  
BHP  
0.5  
0.9  
1.2  
1.8  
2.3  
3.2  
4.2  
5.5  
6.8  
7.4  
RPM  
365  
396  
427  
459  
491  
527  
563  
605  
647  
664  
BHP  
RPM  
422  
447  
473  
500  
528  
561  
594  
632  
671  
688  
BHP  
1.0  
1.4  
1.8  
2.5  
3.1  
4.0  
4.9  
6.3  
7.6  
8.4  
RPM  
475  
495  
516  
540  
565  
594  
624  
659  
695  
712  
BHP  
1.3  
1.7  
2.1  
2.8  
3.5  
4.5  
5.4  
6.7  
8.1  
8.9  
RPM  
523  
540  
557  
578  
600  
626  
653  
686  
719  
736  
BHP  
1.5  
2.0  
2.5  
3.2  
3.9  
4.9  
5.8  
7.2  
8.6  
9.5  
4000  
5000  
0.7  
1.1  
1.5  
2.1  
2.7  
3.6  
4.5  
5.9  
7.2  
7.9  
6000  
7000  
8000  
9000  
10000  
11000  
12000  
12500  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
1.6 1.8  
AIRFLOW CFM  
2.0  
3.0  
4.0  
3
3
3
3
3
RPM  
568  
582  
596  
615  
633  
658  
682  
713  
743  
760  
BHP  
1.8  
2.4  
2.9  
3.6  
4.4  
5.3  
6.3  
7.7  
9.1  
RPM  
609  
621  
633  
650  
666  
688  
710  
739  
767  
784  
BHP  
2.2  
2.7  
3.3  
4.0  
4.8  
5.8  
6.8  
8.2  
9.7  
RPM  
646  
657  
669  
683  
698  
718  
738  
765  
791  
807  
BHP  
2.5  
3.1  
3.7  
4.5  
5.3  
6.3  
7.3  
8.8  
RPM  
681  
692  
702  
716  
729  
747  
766  
791  
815  
830  
BHP  
2.8  
3.5  
4.1  
4.9  
5.7  
6.8  
7.8  
9.3  
RPM  
713  
724  
735  
747  
759  
776  
793  
816  
839  
853  
BHP  
3.2  
3.9  
4.5  
5.4  
6.2  
7.3  
8.4  
9.9  
4000  
5000  
6000  
7000  
8000  
9000  
10000  
11000  
12000  
12500  
10.2  
11.2  
10.8  
11.7  
11.4  
12.3  
10.0  
10.6  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
2.6 2.8  
AIRFLOW CFM  
3
3
3
3
3
RPM  
743  
754  
766  
777  
788  
804  
819  
841  
863  
876  
BHP  
3.5  
RPM  
770  
783  
795  
806  
817  
831  
845  
866  
887  
899  
BHP  
3.9  
RPM  
796  
810  
824  
834  
844  
857  
870  
890  
910  
921  
BHP  
4.3  
5.1  
5.9  
6.8  
7.7  
8.9  
RPM  
821  
836  
851  
861  
871  
883  
896  
914  
933  
943  
BHP  
4.6  
RPM  
844  
861  
878  
888  
898  
909  
920  
938  
956  
965  
BHP  
5.0  
4000  
5000  
4.3  
4.7  
5.5  
5.9  
6000  
5.0  
5.4  
6.4  
6.8  
7000  
5.8  
6.3  
7.3  
7.8  
8000  
6.7  
7.2  
8.2  
8.8  
9000  
7.8  
8.3  
9.5  
10.0  
11.3  
12.9  
14.5  
15.5  
10000  
11000  
12000  
12500  
8.9  
9.5  
10.1  
11.7  
13.2  
14.2  
10.7  
12.3  
13.9  
14.8  
10.5  
12.0  
12.9  
11.1  
12.6  
13.6  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
3.6 3.8  
AIRFLOW CFM  
3
3
3
3
3
RPM  
867  
885  
903  
914  
924  
934  
944  
961  
978  
986  
BHP  
5.4  
RPM  
890  
909  
928  
939  
949  
959  
968  
984  
1000  
1008  
BHP  
5.8  
RPM  
912  
BHP  
6.2  
RPM  
935  
BHP  
6.6  
RPM  
958  
BHP  
6.9  
4000  
5000  
6.4  
6.8  
932  
7.2  
956  
7.6  
979  
8.0  
6000  
7.3  
7.8  
953  
8.2  
976  
8.7  
1000  
1012  
1023  
1030  
1037  
1051  
1064  
1070  
9.1  
7000  
8.3  
8.8  
963  
9.4  
988  
9.9  
10.5  
11.8  
13.2  
14.5  
16.2  
18.0  
19.0  
8000  
9.3  
9.9  
974  
10.5  
11.9  
13.2  
14.9  
16.6  
17.5  
999  
11.2  
12.5  
13.8  
15.6  
17.3  
18.2  
9000  
10.6  
11.9  
13.6  
15.2  
16.2  
11.2  
12.6  
14.2  
15.9  
16.8  
983  
1007  
1015  
1029  
1043  
1050  
10000  
11000  
12000  
13000  
992  
1007  
1022  
1029  
1.  
Fan performance is based on wet evaporator coils, clean 2” throwaway filters and system/cabinet effects at standard air density and 0 feet elevation.  
Refer to Tables 57, 15, 21 and 33 for component additions and deductions to fan performance tables.  
BHP includes drive losses.  
2.  
3.  
4. Shaded RPMs require Class II blower.  
Johnson Controls Unitary Products  
47  
 
882108-YIM-B-1012  
25 Ton Forward Curve  
8.0  
7.5  
7.0  
6.5  
6.0  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
A
0.0  
0
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
CFM (x1000)  
A - Standard Unit  
Note: Standard Unit includes wet evaporator coil, clean 2" throwaway filters, system  
and cabinet effects at standard air density and 0' elevation.  
FIGURE 19 - FAN PERFORMANCE - 25 TON  
48  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
1, 2  
0.4  
TABLE 31: FAN PERFORMANCE - 30 TON  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
0.6  
AIRFLOW (CFM)  
0.2  
1.2  
2.2  
3.2  
0.8  
1.8  
2.8  
3.8  
1.0  
3
3
3
3
3
RPM  
405  
444  
483  
520  
558  
603  
647  
687  
728  
767  
BHP  
1.3  
1.9  
2.6  
3.5  
4.5  
5.7  
7.0  
8.9  
RPM  
450  
485  
519  
554  
588  
629  
671  
709  
748  
786  
BHP  
1.6  
2.3  
2.9  
3.9  
4.8  
6.2  
7.5  
9.3  
RPM  
494  
524  
555  
586  
618  
656  
695  
731  
768  
805  
BHP  
2.0  
2.7  
3.3  
4.3  
5.2  
6.7  
8.1  
9.9  
RPM  
535  
562  
589  
618  
647  
683  
718  
753  
789  
825  
BHP  
2.3  
3.0  
3.7  
4.7  
5.7  
7.2  
8.6  
RPM  
575  
599  
623  
649  
676  
709  
742  
776  
809  
845  
BHP  
2.7  
6000  
7000  
3.4  
8000  
4.2  
9000  
5.2  
10000  
11000  
12000  
13000  
14000  
15000  
6.2  
7.7  
9.2  
10.4  
12.2  
14.4  
10.9  
12.7  
15.0  
10.7  
12.7  
11.2  
13.2  
11.6  
13.8  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
1.6  
AIRFLOW (CFM)  
1.4  
2.4  
3.4  
2.0  
3.0  
4.0  
3
3
3
3
3
RPM  
612  
634  
655  
680  
704  
735  
766  
798  
830  
864  
BHP  
3.1  
RPM  
649  
668  
687  
710  
732  
761  
790  
820  
851  
884  
BHP  
3.5  
4.3  
5.1  
6.1  
7.2  
8.7  
RPM  
683  
701  
719  
739  
760  
787  
814  
843  
872  
904  
BHP  
3.9  
4.7  
5.5  
6.6  
7.7  
9.3  
RPM  
717  
733  
749  
768  
787  
812  
837  
865  
893  
923  
BHP  
4.3  
RPM  
748  
763  
779  
796  
813  
837  
861  
887  
914  
943  
BHP  
4.7  
6000  
7000  
3.8  
5.1  
5.6  
8000  
4.6  
6.0  
6.5  
9000  
5.6  
7.2  
7.7  
10000  
11000  
12000  
13000  
14000  
15000  
6.7  
8.3  
8.9  
8.2  
9.8  
10.4  
12.0  
13.9  
15.9  
18.3  
9.7  
10.3  
12.1  
13.9  
16.3  
10.8  
12.7  
14.6  
16.9  
11.4  
13.3  
15.2  
17.6  
11.5  
13.3  
15.6  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
2.6  
AIRFLOW (CFM)  
3
3
3
3
3
RPM  
779  
793  
807  
823  
839  
862  
884  
909  
935  
963  
BHP  
5.1  
RPM  
808  
822  
836  
850  
865  
886  
907  
931  
956  
982  
BHP  
5.5  
RPM  
837  
850  
863  
877  
890  
910  
930  
953  
976  
1002  
BHP  
6.0  
RPM  
864  
877  
890  
902  
915  
934  
953  
975  
997  
1021  
BHP  
6.4  
RPM  
890  
903  
916  
928  
940  
957  
975  
996  
1017  
1040  
BHP  
6.9  
6000  
7000  
6.1  
6.6  
7.0  
7.5  
8.1  
8000  
7.0  
7.6  
8.1  
8.6  
9.2  
9000  
8.3  
8.8  
9.4  
10.0  
11.3  
12.9  
14.4  
16.5  
18.7  
21.1  
10.6  
12.0  
13.5  
15.0  
17.2  
19.4  
21.8  
10000  
11000  
12000  
13000  
14000  
15000  
9.5  
10.1  
11.6  
13.2  
15.2  
17.3  
19.6  
10.7  
12.2  
13.8  
15.9  
18.0  
20.4  
11.0  
12.5  
14.6  
16.6  
18.9  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
3.6  
AIRFLOW (CFM)  
3
3
3
3
3
RPM  
916  
BHP  
7.4  
RPM  
940  
BHP  
7.9  
RPM  
964  
BHP  
8.3  
RPM  
988  
BHP  
8.8  
RPM  
1011  
1023  
1035  
1045  
1055  
1069  
1082  
1097  
1113  
1134  
BHP  
9.3  
6000  
7000  
928  
8.6  
953  
9.1  
977  
9.6  
1000  
1013  
1023  
1033  
1047  
1061  
1078  
1094  
1115  
10.1  
11.5  
13.0  
14.5  
16.1  
17.8  
20.1  
22.4  
24.9  
10.7  
12.0  
13.6  
15.1  
16.8  
18.5  
20.8  
23.1  
25.7  
8000  
941  
9.8  
965  
10.3  
11.8  
13.2  
14.8  
16.4  
18.6  
20.9  
23.3  
989  
10.9  
12.4  
13.9  
15.5  
17.1  
19.4  
21.6  
24.1  
9000  
952  
11.2  
12.6  
14.1  
15.7  
17.9  
20.2  
22.6  
976  
1000  
1010  
1025  
1040  
1058  
1076  
1097  
10000  
11000  
12000  
13000  
14000  
15000  
964  
987  
981  
1003  
1019  
1038  
1056  
1078  
997  
1017  
1037  
1059  
1.  
Fan performance is based on wet evaporator coils, clean 2” throwaway filters and system/cabinet effects at standard air density and 0 feet elevation.  
Refer to Tables 57, 15, 21 and 33 for component additions and deductions to fan performance tables.  
BHP includes drive losses.  
2.  
3.  
4. Shaded RPMs require Class II blower.  
Johnson Controls Unitary Products  
49  
 
882108-YIM-B-1012  
8.0  
7.5  
7.0  
6.5  
6.0  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
1
5
8
0
0
7
0
0
A
0
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
CFM (x1000)  
A - Standard Unit  
Note: Standard Unit includes wet evaporator coil, clean 2" throwaway filters, system  
and cabinet effects at standard air density and 0' elevation.  
FIGURE 23 - FAN PERFORMANCE - 30 TON  
FIGURE 20 - FAN PERFORMANCE - 30 TON  
50  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
1,2  
TABLE 32: FAN PERFORMANCE - 40 TON  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
0.6  
AIRFLOW (CFM)  
0.2  
1.2  
2.2  
3.2  
0.4  
0.8  
1.8  
2.8  
3.8  
1.0  
3
3
3
3
3
RPM  
367  
396  
424  
454  
484  
507  
530  
560  
589  
613  
638  
BHP  
1.9  
2.5  
3.1  
4.0  
5.0  
5.9  
6.9  
8.4  
9.8  
RPM  
409  
433  
458  
486  
513  
535  
557  
584  
612  
635  
659  
BHP  
2.3  
3.0  
3.6  
4.5  
5.5  
6.5  
7.6  
9.1  
RPM  
448  
469  
491  
516  
542  
562  
583  
609  
634  
657  
680  
BHP  
2.8  
3.5  
4.1  
5.1  
6.1  
7.1  
8.2  
9.7  
RPM  
485  
504  
523  
546  
569  
589  
608  
632  
656  
678  
700  
BHP  
3.3  
4.0  
4.6  
5.6  
6.6  
7.8  
8.9  
RPM  
519  
536  
553  
574  
596  
614  
633  
655  
678  
699  
721  
BHP  
3.8  
8000  
9000  
4.5  
10000  
11000  
12000  
13000  
14000  
15000  
16000  
17000  
18000  
5.2  
6.2  
7.2  
8.4  
9.6  
10.4  
12.0  
13.8  
15.7  
11.2  
12.7  
14.6  
16.5  
10.5  
12.4  
14.3  
11.3  
13.1  
15.0  
11.7  
13.6  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
1.6  
AIRFLOW (CFM)  
1.4  
2.4  
3.4  
2.0  
3.0  
4.0  
3
3
3
3
3
RPM  
552  
567  
582  
602  
621  
639  
657  
678  
699  
720  
740  
BHP  
4.2  
RPM  
583  
596  
610  
628  
647  
664  
681  
700  
720  
740  
760  
BHP  
4.7  
5.5  
6.3  
7.4  
8.5  
9.7  
RPM  
612  
624  
637  
654  
671  
687  
704  
722  
741  
760  
780  
BHP  
5.2  
6.0  
6.9  
8.0  
9.1  
RPM  
639  
651  
663  
679  
695  
710  
726  
744  
761  
780  
799  
BHP  
5.7  
RPM  
665  
677  
688  
703  
718  
733  
748  
765  
781  
799  
818  
BHP  
6.2  
8000  
9000  
5.0  
6.6  
7.1  
10000  
11000  
12000  
13000  
14000  
15000  
16000  
17000  
18000  
5.7  
7.4  
8.0  
6.8  
8.6  
9.2  
7.9  
9.8  
10.4  
11.8  
13.2  
14.9  
16.5  
18.6  
20.6  
9.1  
10.4  
11.7  
13.3  
15.0  
16.9  
18.9  
11.1  
12.5  
14.1  
15.8  
17.8  
19.7  
10.3  
11.9  
13.5  
15.4  
17.3  
11.0  
12.6  
14.2  
16.1  
18.1  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
2.6  
AIRFLOW (CFM)  
3
3
3
3
3
RPM  
690  
701  
712  
726  
740  
755  
769  
785  
801  
819  
836  
BHP  
6.7  
RPM  
713  
725  
736  
749  
762  
776  
790  
805  
820  
837  
855  
BHP  
7.2  
RPM  
736  
747  
759  
771  
784  
797  
811  
825  
839  
856  
873  
BHP  
7.7  
RPM  
758  
769  
781  
793  
805  
818  
831  
845  
858  
874  
890  
BHP  
8.2  
RPM  
779  
790  
802  
814  
826  
838  
851  
864  
877  
892  
908  
BHP  
8.8  
8000  
9000  
7.7  
8.2  
8.8  
9.4  
10.0  
11.2  
12.6  
13.9  
15.5  
17.1  
18.9  
20.6  
22.9  
25.1  
10000  
11000  
12000  
13000  
14000  
15000  
16000  
17000  
18000  
8.7  
9.3  
9.9  
10.6  
11.9  
13.2  
14.7  
16.3  
18.0  
19.8  
22.0  
24.2  
9.9  
10.5  
11.8  
13.3  
14.7  
16.4  
18.1  
20.3  
22.4  
11.2  
12.5  
14.0  
15.5  
17.2  
19.0  
21.1  
23.3  
11.1  
12.5  
14.0  
15.6  
17.3  
19.4  
21.5  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
3.6  
AIRFLOW (CFM)  
3
3
3
3
3
RPM  
799  
811  
823  
834  
846  
858  
870  
882  
895  
910  
925  
BHP  
9.3  
RPM  
819  
831  
843  
855  
866  
877  
889  
901  
913  
928  
-
BHP  
RPM  
839  
851  
863  
874  
885  
896  
908  
919  
931  
945  
-
BHP  
RPM  
859  
871  
883  
894  
905  
915  
926  
937  
948  
962  
-
BHP  
11.2  
12.6  
13.9  
15.4  
16.8  
18.6  
20.3  
22.2  
24.2  
-
RPM  
879  
891  
902  
913  
924  
934  
944  
955  
966  
-
BHP  
11.9  
13.3  
14.6  
16.1  
17.5  
19.3  
21.1  
23.1  
25.1  
-
8000  
9000  
9.9  
10.6  
11.9  
13.3  
14.7  
16.1  
17.8  
19.5  
21.4  
23.3  
25.6  
-
10.6  
11.9  
13.3  
14.6  
16.3  
17.9  
19.7  
21.5  
23.8  
26.0  
11.3  
12.6  
14.0  
15.4  
17.0  
18.7  
20.5  
22.4  
24.7  
-
10000  
11000  
12000  
13000  
14000  
15000  
16000  
17000  
18000  
-
-
-
1.  
Fan performance is based on wet evaporator coils, clean 2” throwaway filters and system/cabinet effects at standard air density and 0 feet elevation.  
Refer to Tables 58, 18, 49 and 33 for component additions and deductions to fan performance tables.  
BHP includes drive losses.  
2.  
3.  
4. Shaded RPMs require Class II blower.  
Johnson Controls Unitary Products  
51  
 
882108-YIM-B-1012  
40 Ton Forward Curve  
7.0  
6.5  
6.0  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
2
0
15  
7
1
0
0
0
A
6
0
0
5
0
0
300  
0.0  
0
2
4
6
8
10  
CFM (x1000)  
12  
14  
16  
18  
20  
A - Standard Unit  
Note: Standard Unit includes wet evaporator coil, clean 2" throwaway filters, system  
and cabinet effects at standard air density and 0' elevation.  
FIGURE 21 - FAN PERFORMANCE - 40 TON  
52  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
1, 2  
TABLE 33: COMPONENT STATIC RESISTANCE  
CFM  
COMPONENT COIL  
LOSSES  
4,000  
6,000  
8,000  
10,000  
12,000  
14,000  
16,000  
18,000  
COIL LOSSES 25T  
3 Row, 16 FPI, dry  
3 Row, 16 FPI, wet  
-0.14  
-0.18  
-0.24  
-0.34  
-0.45  
-
-
-
-
-
-
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
COIL LOSSES 30T  
4 Row, 16 FPI, dry  
4 Row, 16 FPI, wet  
-0.18  
-0.22  
-0.32  
-0.45  
-0.60  
-0.76  
-
-
-
-
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
COIL LOSSES 40T  
4 Row, 16 FPI, dry  
4 Row, 16 FPI, wet  
-0.15  
-0.22  
-0.26  
-0.31  
-0.42  
-0.53  
-.0.65  
-0.79  
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
Baseline  
FILTER LOSSES  
2” TA or HI EFF.  
Rigid 6”, 65%  
Rigid 6”, 95%  
Baseline  
0.06  
Baseline  
0.12  
Baseline  
0.19  
Baseline  
0.27  
Baseline  
0.36  
Baseline  
0.46  
Baseline  
0.58  
Baseline  
0.70  
0.13  
0.26  
0.41  
0.60  
0.81  
1.04  
1.29  
1.57  
IGV LOSSES  
25 & 30 Ton F.C.  
40 Ton F.C.  
0.02  
0.01  
0.05  
0.03  
0.08  
0.05  
0.13  
0.08  
0.19  
0.11  
0.26  
0.15  
0.34  
0.19  
0.43  
0.25  
GAS HEAT  
267 MBH Heat  
533 MBH Heat  
800 MBH Heat  
0.07  
0.14  
0.21  
0.11  
0.21  
0.32  
0.14  
0.28  
0.42  
0.18  
0.35  
0.53  
0.21  
0.42  
0.64  
0.25  
0.49  
0.74  
0.28  
0.57  
0.85  
0.32  
0.64  
0.95  
ELECTRIC HEAT  
40KW  
0.01  
0.01  
0.02  
0.02  
0.04  
0.05  
0.04  
0.08  
0.10  
0.06  
0.13  
0.15  
0.10  
0.20  
0.31  
0.20  
0.31  
0.43  
0.31  
0.44  
0.53  
0.40  
0.56  
0.68  
80KW  
108KW  
ECONOMIZER  
0.03  
0.02  
0.06  
0.05  
0.10  
0.08  
0.15  
0.13  
0.21  
0.18  
0.28  
0.25  
0.35  
0.32  
0.43  
0.41  
POWER EXHAUST  
1.  
Baseline losses based on system/cabinet effects, wet standard coil and 2” throwaway filters at 70°F, 0 feet elevation with standard air.  
See Tables 57, 58, 15, 18 and 21 for hot water and steam water coil static resistance.  
2.  
Johnson Controls Unitary Products  
53  
 
882108-YIM-B-1012  
TABLE 34: SUPPLY FAN MOTOR AND DRIVE DATA  
Motor  
Motor Pulley  
Blower Pulley  
Belts  
Blower  
RPM  
Range  
Motor  
Efficiency Pitch Dia  
Model  
25 Ton  
30 Ton  
40 Ton  
Motor  
Efficiency  
(Std. Motor)  
Frame  
Size  
Bore  
(Inches)  
Pitch Dia  
(Inches)  
Bore  
(Inches)  
HP  
Designation  
Qty  
(Ultra Hi  
Eff Opt)  
(Inches)  
567  
692  
793  
894  
617  
743  
856  
907  
617  
652  
728  
780  
7.5  
10  
15  
20  
10  
15  
20  
25  
10  
15  
20  
25  
213T  
215T  
254T  
256T  
215T  
254T  
256T  
284T  
215T  
254T  
256T  
284T  
88.5  
89.5  
91  
91.7  
91  
4.5  
5.5  
6.3  
7.1  
4.9  
5.9  
6.7  
7.1  
4.9  
5.1  
5.7  
6.1  
1-3/8  
1-3/8  
1-5/8  
1-5/8  
1-3/8  
1-5/8  
1-5/8  
1-7/8  
1-3/8  
1-5/8  
1-5/8  
1-7/8  
13.9  
13.9  
13.9  
13.9  
13.9  
13.9  
13.7  
13.7  
13.9  
13.7  
13.7  
13.7  
2-3/16  
2-3/16  
2-3/16  
2-3/16  
2-3/16  
2-3/16  
2-3/16  
2-3/16  
2-7/16  
2-7/16  
2-7/16  
2-7/16  
BX56  
BX56  
2
2
2
2
2
2
2
2
2
2
2
2
91.7  
93  
BX56  
91  
BX56  
89.5  
91  
91  
BX56  
91.7  
93  
BX56  
91  
5VX610  
5VX610  
BX67  
91.7  
89.5  
91  
93.6  
91  
91.7  
93  
5VX710  
5VX710  
5VX710  
91  
91.7  
93.6  
TABLE 35: EXHAUST FAN DRIVE DATA  
Motor  
Motor Pulley  
Blower Pulley  
Belts  
Blower  
Model  
RPM  
Range  
Motor Eff  
(Std.  
Motor)  
Motor  
Eff (Hi  
Eff opt)  
Frame  
Size  
Pitch Dia  
(Inches)  
Bore  
(Inches)  
Pitch Dia  
(Inches)  
Bore  
(Inches)  
HP  
Designation  
Qty  
758  
852  
976  
852  
976  
1069  
852  
976  
1069  
5
213T  
215T  
215T  
213T  
215T  
254T  
184T  
215T  
254T  
87.5  
88.5  
89.5  
84  
89.5  
91.7  
91  
4.9  
5.5  
6.3  
5.5  
6.3  
6.9  
5.5  
6.3  
6.9  
1-3/8  
1-3/8  
1-5/8  
1-3/8  
1-3/8  
1-3/8  
1-3/8  
1-3/8  
1-3/8  
11.3  
11.3  
11.3  
11.3  
11.3  
11.3  
11.3  
11.3  
11.3  
2-3/16  
2-3/16  
BX63  
BX63  
BX63  
B65  
2
2
2
2
2
2
2
2
2
25  
Ton  
7.5  
10  
7.5  
10  
15  
7.5  
10  
15  
2-3/16  
86.5  
89.5  
89.5  
86.5  
89.5  
89.5  
1-11/16  
1-11/16  
1-11/16  
1-11/16  
1-11/16  
1-11/16  
30  
Ton  
86.5  
85.7  
84  
B65  
B65  
B65  
40  
Ton  
86.5  
85.7  
B65  
B65  
54  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
1
TABLE 36: POWER EXHAUST - ONE FORWARD CURVED FAN 25 TON  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
0.4 0.6 0.8  
0.2  
1.0  
AIRFLOW CFM  
2
2
2
2
2
RPM  
RPM  
RPM  
RPM  
RPM  
BHP  
BHP  
---  
BHP  
---  
BHP  
0.3  
0.5  
0.9  
1.5  
2.4  
3.5  
4.8  
6.5  
9.1  
BHP  
0.4  
0.7  
1.1  
1.7  
2.6  
3.7  
5.2  
6.9  
9.4  
2000  
3000  
4000  
5000  
6000  
7000  
8000  
9000  
10000  
---  
---  
450  
496  
566  
646  
731  
821  
911  
1004  
524  
531  
562  
609  
679  
759  
844  
932  
1022  
609  
605  
626  
663  
717  
787  
868  
953  
1041  
685  
672  
687  
717  
762  
820  
892  
974  
1059  
0.6  
0.8  
1.2  
1.8  
2.7  
4.0  
5.5  
7.3  
9.8  
---  
---  
0.4  
0.8  
1.4  
2.2  
3.3  
4.3  
6.2  
8.8  
442  
524  
612  
703  
791  
877  
967  
0.7  
1.2  
1.9  
3.0  
3.8  
5.8  
8.4  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
1.4 1.6 1.8  
1.2  
2.0  
AIRFLOW CFM  
2
2
2
2
2
RPM  
RPM  
RPM  
RPM  
RPM  
BHP  
0.7  
1.0  
1.4  
2.0  
2.9  
4.2  
5.7  
7.6  
BHP  
0.8  
1.1  
1.5  
2.2  
3.1  
4.4  
6.0  
8.0  
BHP  
0.9  
1.3  
1.7  
2.4  
3.3  
4.6  
6.2  
8.3  
BHP  
1.1  
1.5  
1.9  
2.6  
3.6  
4.8  
6.5  
8.5  
BHP  
1.2  
1.7  
2.1  
2.8  
3.8  
5.0  
6.8  
8.8  
2000  
3000  
4000  
5000  
6000  
7000  
8000  
9000  
10000  
754  
736  
743  
768  
806  
857  
921  
995  
1077  
819  
797  
799  
818  
850  
895  
953  
1020  
1096  
878  
854  
850  
865  
895  
933  
985  
1048  
1119  
933  
909  
986  
961  
900  
948  
911  
955  
937  
978  
972  
1010  
1052  
1103  
1167  
1018  
1075  
1143  
10.1  
10.4  
10.8  
11.1  
11.4  
1.  
Fan performance is based on system/cabinet effects and back draft damper effects at standard air density and 0 feet of elevation.  
BHP includes 5% drive losses.  
2.  
Johnson Controls Unitary Products  
55  
 
882108-YIM-B-1012  
FIGURE 22 - POWER EXHAUST - ONE FORWARD CURVE FAN - 25 TONS  
56  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
1
TABLE 37: POWER EXHAUST - TWO FORWARD CURVED FANS - 30 & 40 TON  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
0.2  
0.4  
.06  
0.8  
1.0  
AIRFLOW CFM  
2 3  
2 3  
BHP  
2 3  
2 3  
2 3  
RPM  
RPM  
RPM  
RPM  
RPM  
BHP  
BHP  
BHP  
BHP  
4000  
5000  
363  
402  
445  
494  
544  
597  
651  
705  
761  
817  
874  
932  
989  
0.32  
468  
494  
527  
565  
609  
654  
703  
753  
805  
858  
912  
967  
1022  
0.53  
560  
576  
602  
633  
670  
711  
0.74  
641  
652  
670  
697  
729  
765  
805  
847  
893  
939  
988  
1037  
1088  
0.95  
716  
722  
735  
757  
784  
817  
853  
893  
934  
979  
1025  
1072  
-
1.16  
1.47  
2.00  
2.52  
3.15  
3.89  
4.83  
5.99  
7.25  
8.82  
10.50  
12.60  
-
0.53  
0.84  
1.26  
1.79  
2.42  
3.26  
4.31  
5.46  
6.93  
8.51  
10.40  
12.60  
0.74  
1.05  
1.58  
2.10  
2.84  
3.68  
4.73  
5.88  
7.35  
9.03  
10.92  
13.23  
1.05  
1.37  
1.79  
2.42  
3.15  
3.99  
5.15  
6.30  
7.77  
9.56  
11.55  
13.76  
1.26  
1.68  
2.10  
2.73  
3.47  
4.41  
5.57  
6.83  
8.30  
9.98  
12.08  
14.28  
6000  
7000  
8000  
9000  
10000  
11000  
12000  
13000  
14000  
15000  
16000  
754  
801  
849  
899  
950  
1002  
1055  
AVAILABLE EXTERNAL STATIC PRESSURE (IWG)  
1.6  
1.2  
1.4  
1.8  
2
AIRFLOW CFM  
2 3  
2 3  
BHP  
2 3  
2 3  
2 3  
BHP  
RPM  
RPM  
RPM  
RPM  
RPM  
BHP  
BHP  
BHP  
4000  
5000  
783  
788  
798  
814  
837  
866  
900  
936  
976  
1018  
1061  
1107  
1.47  
844  
848  
1.68  
903  
906  
1.89  
956  
959  
2.21  
1008  
1011  
1014  
1021  
1033  
1050  
1073  
1101  
1131  
1165  
1202  
1240  
2.42  
1.79  
2.21  
2.84  
3.47  
4.31  
5.25  
6.41  
7.77  
9.35  
11.13  
13.23  
2.10  
2.63  
3.15  
3.89  
4.73  
5.67  
6.93  
8.30  
9.87  
11.66  
13.76  
2.42  
2.94  
3.47  
4.20  
5.15  
6.20  
7.35  
8.72  
10.40  
12.29  
14.39  
2.63  
3.26  
3.89  
4.62  
5.57  
6.62  
7.88  
9.24  
10.92  
12.92  
14.91  
2.94  
3.57  
4.20  
5.04  
5.99  
7.14  
8.30  
9.77  
11.55  
13.44  
15.54  
6000  
855  
911  
963  
7000  
869  
922  
972  
8000  
889  
938  
987  
9000  
915  
961  
1007  
1032  
1061  
1094  
1129  
1167  
1208  
10000  
11000  
12000  
13000  
14000  
15000  
945  
989  
979  
1020  
1055  
1093  
1133  
1175  
1016  
1055  
1098  
1141  
1.  
2.  
3.  
Fan performance is based on system/cabinet effects and back draft damper effects at standard air density and 0 feet elevation.  
BHP includes the sum of both exhaust fan motors.  
BHP includes 5% drive losses.  
Johnson Controls Unitary Products  
57  
 
882108-YIM-B-1012  
FIGURE 23 - POWER EXHAUST - TWO FORWARD CURVED FANS - 30 & 40 TONS  
58  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
condenser fans are rotating in the correct direction and the  
supply fan is not, it will be necessary to switch leads on the  
output side of the VFD, since changing phase on the input  
side of a VFD does not change rotation on the output side. If  
the VFD is equipped with a bypass, verify that rotation is cor-  
rect in the bypass mode.  
START-UP  
COMPRESSOR ROTATION  
Check for proper compressor rotation (See page 66 for symp-  
toms of reverse compressor operations). Millennium units are  
properly phased at the factory. If the blower, condenser fan,  
or compressor, rotate in the wrong direction at start-up, the  
electrical connection to the unit is misphased. Change the  
NOTE: If unit is equipped with power exhaust fans or return  
air fan also check them for proper rotation.  
incoming line connection phasing to obtain proper rotation.  
VFD units with bypass must not have the bypass activated  
unless all individual space dampers are full open. It is the  
responsibility of the installer to interconnect the bypass mode  
to the signal to open all boxes on the circuit.  
Scroll compressors require proper rotation to oper-  
ate correctly. Units are properly phased at the fac-  
tory. DO NOT change the internal wiring to make  
the blower, condenser fans or compressor rotate  
correctly.  
BELT TENSION  
The tension on the belt should be adjusted as shown in Fig-  
ure 24 and Table 38.  
NOTE: If unit is equipped with power exhaust fans or return  
air fan check belt tension and adjust as necessary.  
SUPPLY AIR FAN INSTRUCTIONS  
C
A
U
T
I
O
N
CHECK BLOWER BEARING SET SCREWS  
P
R
O
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I
O
N
•
The bearing set screws on the supply air blower are  
properly torqued before shipment. However, in transit  
they may loosen. Prior to start up they should be  
rechecked. The set screws are 3/8" and the torque range  
is 200 - 215 in.-lbs.  
1
2
3
.
.
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.
NOTE: If a unit is equipped with exhaust fans, those bear-  
ing set screws should also be rechecked. The set  
screws are 1/4 inch and the torque range is 70 - 87  
in.-lbs.  
S
P
A
N
L
E
N
G
T
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D
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F
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C
T
I
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N
F
O
R
C
E
CHECKING SUPPLY AIR CFM  
The RPM of the supply air blower will depend on the required  
CFM, the static pressure resistances of the unit components  
(Tables 33, 48, 49, 57, and 58) and the static pressure resis-  
tances of both the supply and the return air duct systems.  
With this information, the RPM for the supply air blower can  
be determined from the blower performance data in Tables  
30, 31, and 32. See Table 34 for pulley and drive information  
for the fixed pitch pulleys supplied on the unit.  
"
A
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.
The supply air CFM must be within the limitations shown in  
Table 2, and Class II fans must be specified where conditions  
exceed the rpm limitations of Class I.  
5
.
A
f
t
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r
a
d
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.
FIGURE 24 - BELT TENSION ADJUSTMENT  
AIR BALANCE  
NOTE: If unit is equipped with power exhaust fans or return  
air fan see Tables 36 and 37 for fan performance  
and for pulley and drive information see Table 35.  
Start the supply air blower motor. Adjust the resistances in  
both the supply and the return air duct systems to balance  
the air distribution throughout the conditioned space. The job  
specifications may require that this balancing be done by  
someone other than the equipment installer.  
FAN ROTATION  
Check for proper supply air blower rotation. If fans are rotat-  
ing backwards the line voltage to unit point of power connec-  
tion is misphased (see Compressor Rotation above.) If the  
Johnson Controls Unitary Products  
59  
                 
882108-YIM-B-1012  
CHECKING AIR QUANTITY  
On VAV and VFD units be certain all IGV’s on VAV  
unit are full open, VFD drive is set to maximum  
output, exhaust dampers are closed and individual  
space damper boxes are full open.  
VFD units with bypass must not have the bypass  
activated unless all individual space dampers are  
full open.  
TABLE 38: BELT ADJUSTMENT  
FAN MOTOR HORSE POWER  
30 TON FORWARD CURVED SUPPLY FAN  
Belt Deflection Force (lbs) new belts  
Belt Deflection Force (lbs) old belts  
40 TON FORWARD CURVED SUPPLY FAN  
Belt Deflection Force (lbs) new belts  
Belt Deflection Force (lbs) old belts  
30 & 40 TON POWER EXHAUST FAN  
Belt Deflection Force (lbs) new belts  
Belt Deflection Force (lbs) old belts  
25 TON FORWARD CURVE SUPPLY FAN  
New Belt  
5
7.5  
10  
SIZE: 22 X 20  
10.5 12.6  
7.1 8.5  
SIZE: 25 X 20  
10.5 12.6  
7.1 8.5  
SIZE: (2) 15 X 15  
15  
20  
25  
-
-
-
-
15.2  
10.2  
22.1  
14.8  
-
-
-
-
15.2  
10.2  
15.2  
10.2  
-
-
7.9  
5.3  
9.4  
6.3  
9.4  
6.3  
-
-
-
-
SIZE: 22 X 20  
10.5 12.6  
7.1 8.5  
-
-
10.5  
7.1  
15.2  
10.2  
-
-
Old Belt  
25 TON POWER EXHAUST  
New Belt  
10.5  
7.1  
10.5  
7.1  
12.6  
8.5  
-
-
-
-
-
-
Old Belt  
1. Remove the dot plugs from the two 5/16 inch holes in the  
blower motor and the filter access doors.  
NOTE: De-energize the compressors before taking any test  
measurements to assure a dry evaporator coil.  
2. Insert at least 8 inch of 1/4 inch metal tubing into each of  
these holes for sufficient penetration into the air flow on  
both sides of the indoor coil.  
3. Using an inclined manometer or other high resolution  
pressure measurement device, determine the pressure  
drop across a dry evaporator coil. Since the moisture on  
an evaporator coil may vary greatly, measuring the pres-  
sure drop across a wet coil under field conditions would  
be inaccurate. To assure a dry coil, the compressors  
should be de-activated while the test is being run.  
Failure to properly adjust the total system air quan-  
tity can result in extensive blower or duct damage.  
After readings have been obtained, remove the tubes and  
reinstall the two 5/16 inch dot plugs.  
It is especially important to limit the rpm of the fan in VFD-  
bypass-equipped units; it may be tempting to set max rpm in  
the VFD to less than 60 Hz - but the bypass will go to 60 Hz  
immediately on activation.  
4. Knowing the pressure drop across a dry coil, the actual  
CFM through the unit with clean 2 inch filters, can be  
determined from the curve in Figure 52 and 53.  
60  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
•
•
•
New drive speed = 1.1194 X 856 = 958.2 RPM  
SUPPLY AIR DRIVE ADJUSTMENT  
New supply air = 1.1194 X 11,000 = 12,313 CFM  
Re-use the existing belts and blower sheave.  
Before making any blower speed changes review  
the installation for any installation errors, leaks or  
undesirable systems effects that can result in loss  
of air flow.  
New motor BHP = (speed increase)3 x estimated motor  
BHP at original start-up with 11,000 CFM and 856 RPM =  
(1.119)3 x 11 BHP = 1.4012 x 11 BHP = 15.41 BHP New  
motor amps = (speed increase)3 x measured motor amps  
at original start-up with 11,000 CFM and 856 RPM.  
Even small changes in blower speed can result in  
substantial changes in static pressure and BHP.  
BHP or AMP draw of the blower motor will  
increase (see table 39) by the cube ratio of the  
blower speed. Static pressure will increase by the  
square ratio of the blower speed. Tables 40, 41  
and 42 are for reference only. All blower speed  
changes must be made by qualified personnel with  
strict adherence to the fan laws.  
.
TABLE 39: BLOWER SPEED RATE OF CHANGE  
CHANGE IN  
BHP AND  
MOTOR  
AMPS  
CHANGE IN RPM  
CFM  
TSP  
.90  
.93  
.90  
.93  
.81  
.86  
.73  
.79  
.95  
.95  
.90  
.86  
At unit start-up the measured CFM based on Figures 52 and  
53 may be higher or lower than the specified CFM. To  
achieve the specified CFM, the speed of the drive may have  
to be decreased or increased by changing the pitch diameter  
(PD) of the motor sheave as outlined below:  
.98  
.98  
.95  
.93  
1.00  
1.03  
1.05  
1.08  
1.10  
1.13  
1.15  
1.18  
1.20  
1.00  
1.03  
1.05  
1.08  
1.10  
1.13  
1.15  
1.18  
1.20  
1.00  
1.05  
1.10  
1.16  
1.21  
1.27  
1.32  
1.38  
1.44  
1.00  
1.08  
1.16  
1.24  
1.33  
1.42  
1.52  
1.62  
1.73  
•
(Specified CFM/Measured CFM) X PD of standard  
sheave = PD of new sheave.  
Use the following tables and the PD calculated per the above  
equation to select a new motor sheave.  
EXAMPLE  
•
•
•
A 30 ton unit was selected to deliver 12,000 CFM with a  
20 HP motor and a 856 RPM drive, but the unit is only  
delivering 11,000 CFM per Figure 20.  
SYSTEM SETPOINTS  
Constant Volume and Variable Air Volume:  
Use the equation to determine the required PD for the  
new motor sheave (12,000 CFM/11,000 CFM X 6.7” =  
7.3091 inch).  
Thermostat and space sensor offsets must be made external  
to the unit. For internal settings, refer to the Settable Parame-  
ters in the Unit Control document. All parameters affecting  
the unit with that specific set of options and for that specific  
application must be reviewed. In many cases, the default set-  
tings will be fine - but verify and fine tune where necessary.  
Use the 30 ton table to select a Browning 2B5V74 which  
will increase the speed of the unit’s drive and its supply  
air CFM to 111.9%. Thus select the 7.5” PD at 112%  
increase over standard.  
Johnson Controls Unitary Products  
61  
       
882108-YIM-B-1012  
TABLE 40: 25 TON DRIVE ADJUSTMENT  
7.5 HP MOTOR & 567 RPM DRIVE  
10 HP MOTOR & 692 RPM DRIVE  
15 HP MOTOR & 793 RPM DRIVE  
20 HP MOTOR & 894 RPM DRIVE  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
-
-
-
-
82  
86  
89  
93  
96  
4.5  
4.7  
4.9  
5.1  
5.3  
42  
44  
46  
48  
50  
84  
87  
90  
94  
97  
5.3  
5.5  
5.7  
5.9  
6.1  
50  
52  
54  
56  
58  
86  
89  
91  
94  
97  
6.1  
6.3  
6.5  
6.7  
6.9  
58  
60  
62  
64  
66  
-
-
100  
104  
109  
(Std.)4.5  
4.7  
42  
44  
46  
4.9  
(Std.)  
5.5  
(Std)  
6.3  
(Std.)  
7.1  
113  
5.1  
48  
100  
52  
100  
60  
100  
68  
118  
5.3  
5.5  
5.7  
-
50  
52  
54  
-
104  
107  
111  
115  
118  
122  
5.7  
5.9  
6.1  
6.3  
6.5  
6.7  
54  
56  
58  
60  
62  
64  
103  
106  
110  
113  
116  
122  
6.5  
6.7  
6.9  
7.1  
7.3  
7.7  
62  
64  
66  
68  
70  
74  
103  
108  
117  
125  
-
7.3  
7.7  
8.3  
8.9  
-
70  
74  
80  
86  
-
122  
126  
-
-
-
-
-
-
-
-
-
-
TABLE 41: 30 TON DRIVE ADJUSTMENT  
10 HP MOTOR & 617 RPM DRIVE  
15 HP MOTOR & 743 RPM DRIVE  
20 HP MOTOR & 856 RPM DRIVE  
25 HP MOTOR & 907 RPM DRIVE  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
91.8  
95.9  
4.5  
4.7  
42  
44  
86.4  
89.8  
5.1  
5.3  
48  
50  
82.1  
85.1  
5.5  
5.7  
54  
56  
86.3  
89.0  
6.1  
6.3  
60  
62  
(Std.)  
4.9  
100.0  
104.1  
108.2  
46  
48  
50  
93.2  
96.6  
5.5  
5.7  
52  
54  
56  
88.1  
91.0  
94.0  
5.9  
6.1  
6.3  
58  
60  
62  
91.8  
94.5  
97.3  
6.5  
6.7  
6.9  
64  
66  
68  
5.1  
5.3  
(Std.)  
5.9  
100.0  
(Std.)  
7.1  
112.2  
116.3  
5.5  
5.7  
52  
54  
103.4  
106.8  
6.1  
6.3  
58  
60  
97.0  
6.5  
64  
66  
100.0  
105.5  
70  
74  
(Std.)  
6.7  
100.0  
7.5  
120.4  
5.9  
56  
58  
-
110.2  
113.6  
116.9  
120.3  
123.7  
6.5  
6.7  
6.9  
7.1  
7.3  
62  
64  
66  
68  
70  
103.0  
106.0  
112.0  
120.9  
129.9  
6.9  
7.1  
7.5  
8.1  
8.7  
68  
70  
74  
80  
86  
113.7  
8.1  
80  
86  
-
124.5  
6.1  
121.9  
8.7  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
62  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
TABLE 42: 40 TON DRIVE ADJUSTMENT  
10 HP MOTOR & 617 RPM DRIVE  
15 HP MOTOR & 652 RPM DRIVE  
20 HP MOTOR & 728 RPM DRIVE  
25 HP MOTOR & 780 RPM DRIVE  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
% RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
%RPM  
& CFM  
REQ’D  
PD  
BROWNING  
2B5V_ _  
91.8  
95.9  
4.5  
4.7  
42  
44  
88.2  
92.1  
4.5  
4.7  
44  
46  
82.5  
86.0  
4.7  
4.9  
46  
48  
83.7  
86.9  
5.1  
5.3  
50  
52  
(Std.)  
4.9  
100.0  
46  
96.0  
4.9  
48  
89.5  
5.1  
50  
90.2  
5.5  
54  
(Std.)  
5.1  
104.1  
108.2  
112.2  
5.1  
5.3  
5.5  
48  
50  
52  
100.0  
103.9  
107.8  
50  
52  
54  
93.0  
96.5  
5.3  
5.5  
52  
54  
56  
93.4  
96.7  
5.7  
5.9  
56  
58  
60  
5.3  
5.5  
(Std.)  
5.7  
(Std.)  
6.1  
100.0  
100.0  
116.3  
5.7  
54  
-
111.7  
115.6  
119.5  
123.4  
127.4  
-
5.7  
5.9  
6.1  
6.3  
6.5  
-
56  
58  
60  
62  
64  
66  
103.5  
107.0  
110.5  
114.0  
117.5  
121.1  
5.9  
6.1  
6.3  
6.5  
6.7  
6.9  
58  
60  
62  
64  
66  
68  
103.3  
106.6  
109.8  
113.1  
116.4  
119.7  
6.3  
6.5  
6.7  
6.9  
7.1  
7.5  
62  
64  
66  
68  
70  
74  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TABLE 43: DRIVE ADJUSTMENT FOR POWER EXHAUST - 25 TON  
5 HP Motor & 758 RPM Drive  
7.5 HP Motor & 852 RPM Drive  
10 HP Motor & 976 RPM Drive  
%RPM  
& CFM  
Req’d  
PD  
Browning  
2b5v_ _  
%RPM  
& CFM  
Req’d  
PD  
Browning  
2b5v_ _  
%RPM  
& CFM  
Browning  
2b5v_ _  
Req’d PD  
100  
104  
109  
113  
117  
122  
4.9 (Std.)  
5.1  
46  
48  
50  
52  
54  
56  
92  
96  
5.1  
5.3  
48  
50  
52  
54  
56  
58  
93  
97  
5.9  
6.1  
56  
58  
60  
62  
64  
66  
5.3  
100  
104  
108  
112  
5.5 (Std.)  
5.7  
100  
103  
107  
110  
6.3 (Std.)  
6.5  
5.5  
5.7  
5.9  
6.7  
5.9  
6.1  
6.9  
Johnson Controls Unitary Products  
63  
   
882108-YIM-B-1012  
TABLE 44: DRIVE ADJUSTMENT FOR POWER EXHAUST - 30 & 40 TON  
7.5 HP Motor & 852 RPM Drive  
10 HP Motor & 976 RPM Drive  
15 HP Motor & 1069 RPM Drive  
% RPM  
& CFM  
REQ’D  
PD (in)  
Browning  
2B5V_ _  
% RPM  
& CFM  
REQ’D  
PD (in)  
Browning  
2B5V_ _  
% RPM  
& CFM  
REQ’D  
PD (in)  
Browning  
2B5V_ _  
96.4  
100.0  
103.6  
107.3  
110.9  
114.5  
5.3  
(Std.) 5.5  
5.7  
52  
54  
56  
58  
60  
62  
93.7  
96.8  
5.9  
6.1  
58  
60  
62  
64  
66  
68  
94.2  
97.1  
6.5  
6.7  
64  
66  
68  
70  
74  
80  
100.0  
103.2  
106.3  
109.5  
(Std.) 6.3  
6.5  
100.0  
102.9  
108.7  
117.4  
(Std.) 6.9  
7.1  
5.9  
6.1  
6.7  
7.5  
6.3  
6.9  
8.1  
POST-START CHECKLIST (GAS)  
GAS FURNACE OPERATING  
INSTRUCTIONS  
After the entire control circuit has been energized and the  
heating section is operating, make the following checks:  
1. Check for gas leaks in the unit piping as well as the sup-  
ply piping.  
Each furnace module is equipped with an auto-  
matic re-ignition system. DO NOT attempt to man-  
ually light the burners.  
2. Check for correct manifold gas pressures. See Checking  
Gas Input.  
3. Check the supply gas pressure. It must be within the lim-  
its shown on rating nameplate. Supply pressure should  
be checked with all gas appliances in the building at full  
fire. At no time should the standby gas pressure exceed  
13 inches, nor the operating pressure drop below 6  
inches. If gas pressure is outside these limits, contact the  
local gas utility for corrective action.  
TO LIGHT THE MAIN BURNERS  
1. Turn off electric power to unit.  
2. Turn space temperature sensor to lowest setting.  
3. Turn gas valve knobs to on position (Refer to Figure 25).  
4. Turn on electric power to unit.  
MANIFOLD GAS PRESSURE ADJUSTMENT  
5. On Constant Volume units, set space setpoint to warmer  
or cooler as desired. (If sensor set point temperature is  
above room temperature, the main burners will ignite). If  
a second stage of heat is called for, the main burners for  
second stage heat will ignite for the second stage heat.  
For VAV units set morning warm-up thermostat far above  
the return air temperature and cycle the time clock OFF,  
then ON.  
Small adjustments to the gas flow may be made by turning  
the pressure regulator adjusting screw on the automatic gas  
valve. Refer to Figure 25.  
Adjust as follows:  
1. Remove the cap on the regulator. It's located next to the  
push-on electrical terminals.  
TO SHUT DOWN  
2. To decrease the gas pressure, turn the adjusting screw  
counterclockwise.  
1. Turn off electric power to unit.  
3. To increase the gas pressure, turn the adjusting screw  
clockwise.  
2. Depress knob of gas valve while turning to off position or  
move switch to off position. (Refer to Figure 25).  
NOTE: The factory manifold pressure for each furnace  
module is 3.50 IWG.  
64  
Johnson Controls Unitary Products  
           
882108-YIM-B-1012  
4. Remove the heat shield on top of the manifold support.  
Burners are now accessible for service.  
VALVE  
SWITCH  
Reverse the above procedure to replace the assemblies.  
Make sure that burners are level and seat at the rear of the  
gas orifice.  
ELECTRICAL  
TERMINALS  
ADJUSTMENT OF TEMPERATURE RISE  
VALVE  
INLET  
The temperature rise (or temperature difference between the  
return air and the heated air from the furnace) must lie within  
the range shown on the CGA/ETL rating plate and the data in  
Table 3.  
STANDARD GAS VALVE  
After the temperature rise has been determined, the CFM can  
be calculated as follows:  
ELECTRICAL  
TERMINALS  
Btuh 0.8  
1.08 F Degrees Temp Rise  
CFM= -------------------------------------------------------------------------  
VALVE  
SWITCH  
After about 20 minutes of operation, determine the furnace  
temperature rise. Take readings of both the return air and the  
heated air in the ducts (about six feet from the furnace) where  
they will not be affected by radiant heat. Increase the blower  
CFM to decrease the temperature rise; decrease the blower  
CFM to increase the rise. Refer to Table 34 for supply air  
blower motor and drive data. Minimum allowable CFM is  
6,000 CFM. Limit will open below this rating.  
CHECKING GAS INPUT  
NATURAL GAS  
VALVE  
INLET  
2 STAGE GAS VALVE USED  
ON MODULATING GAS HEAT  
1. Turn off all other gas appliances connected to the gas  
meter.  
FIGURE 25 - TYPICAL GAS VALVES  
2. With the furnace turned on, measure the time needed for  
one revolution of the hand on the smallest dial on the  
meter. A typical gas meter usually has a 1/2 or a 1 cubic  
foot test dial.  
BURNER INSTRUCTIONS  
To check or change burners, pilot or orifices, CLOSE MAIN  
MANUAL SHUT-OFF VALVE AND SHUT OFF ALL POWER  
TO THE UNIT.  
3. Using the number of seconds for each revolution and the  
size of the test dial increment, find the cubic feet of gas  
consumed per hour from Table 45.  
1. Remove the screws holding either end of the manifold to  
the burner supports.  
If the actual input is not within 5% of the furnace rating (with  
allowance being made for the permissible range of the regu-  
lator setting), replace the orifice spuds with spuds of the  
proper size.  
2. Open the union fitting in the gas supply line just  
upstream of the unit gas valves and downstream from  
the main manual shut-off valve.  
NOTE: To find the Btu input, multiply the number of cubic  
feet of gas consumed per hour by the Btu content of  
the gas in your particular locality (contact your gas  
company for this information - it varies widely from  
city to city).  
3. Disconnect wiring to the gas valves and spark ignitors.  
Remove the manifold-burner gas valve assemblies by  
pulling back.  
Johnson Controls Unitary Products  
65  
         
882108-YIM-B-1012  
SERVICE  
TABLE 45: GAS RATE - CUBIC FEET PER HOUR  
Size of Test Dial  
Seconds for One  
REFRIGERATION SYSTEM  
Rev.  
1/2 cu. Ft.  
900  
1 cu. Ft.  
1800  
900  
CHARGE: Each system is fully factory charged with R-410A.  
The correct charge appears on the unit nameplate.  
2
4
450  
Thermal Expansion Valves: The 30 ton unit has 3 and the 40  
ton unit has 4 independent refrigeration systems. These  
TXVs are set to maintain 15°F superheat leaving the evapo-  
rator coil. The superheat on each valve is adjustable, how-  
ever, adjustments should only be made if absolutely  
necessary.  
6
300  
600  
8
225  
450  
10  
180  
360  
FILTER DRIER: Each system is equipped with a filter drier.  
The drier should be replaced whenever moisture is indicated  
in the system.  
H
E
A
T
E
X
C
H
A
N
G
E
R
T
U
B
E
G
A
S
COMPRESSORS  
S
U
P
P
L
Y
P
I
P
E
B
U
R
N
E
R
F
L
A
M
E
Each compressor is inherently protected from over current  
and over temperature. High and low pressure switches are  
installed on the discharge and suction lines respectively for  
high and low pressure protection. Scroll compressors operate  
in only one direction. If the compressor is experiencing low  
amperage draw, similar discharge and suction pressure or  
increased noise level, it is operating in reverse. Switch two  
line voltage connections to correct (See Compressor Rotation  
page 59).  
B
U
R
N
E
R
(
B
L
U
E
O
N
L
Y
)
B
U
R
N
E
R
B
R
A
C
K
E
T
I
G
N
I
T
O
R
FIGURE 26 - TYPICAL FLAME APPEARANCE  
Example: By actual measurement, it takes 7 seconds for the  
hand on the one cubic foot dial to make a revolution with just  
a 570,000 Btuh furnace running. Read across to the column  
in Table 24, headed 1 Cubic Foot where you will determine  
that 525 cubic feet of gas per hour are consumed by the fur-  
nace at that rate. Multiply 525 x 1050 (the Btu rating of the  
gas obtained from the local gas company). The result of  
551,000 Btuh is within 5% of the 570,000 Btuh rating of the  
furnace.  
MOTORS  
INDOOR BLOWER MOTORS  
All indoor blower motors are non-inherently protected three  
phase motors. Overcurrent protection is provided by a man-  
ual reset starter/overload relay and short circuit protection is  
provided by fuses. Where there is a supply fan VFD, an auxil-  
iary contact provides the overcurrent indication to the Sim-  
plicity® control.  
ELECTRIC HEATING  
The electric furnace is operational as shipped from the fac-  
tory and does not receive any field adjustments.  
POWER EXHAUST OR RETURN AIR FAN MOTORS  
COOLING OPERATING INSTRUCTIONS  
COMPRESSOR  
All motors are non-inherently protected three phase motors.  
Overcurrent protection is provided by a manual reset  
starter/overload relay and short circuit protection is provided  
by fuses.  
Compressors are factory mounted ready for operation (See  
page 59 Compressor Rotation).  
CONDENSER FAN MOTORS  
All condenser fan motors are inherently protected three  
phase motors. Short circuit protection is provided by fuses.  
INTERNAL WIRING  
Check all electrical connections in the unit control box;  
tighten as required.  
DRAFT MOTOR (GAS FURNACE)  
All draft motors are line voltage, inherently protected, single  
phase PSC motors. Short circuit protection is provided by  
fuses.  
CONDENSER FANS  
Check for proper condenser fan rotation; clockwise facing the  
air discharge. If condenser fans are rotating backwards, line  
voltage to unit single point power connection is misphased  
(See page 59 Compressor Rotation).  
66  
Johnson Controls Unitary Products  
                             
882108-YIM-B-1012  
1
TABLE 49: STATIC RESISTANCE STEAM COIL  
(40 TON)  
TABLE 46: STEAM COIL (1 ROW, 25 & 30 TON)  
Capacity (MBH) at Steam Pressure (PSI)  
CFM  
CFM  
8000  
11000  
14000  
17000  
20000  
2
6
10  
15  
Air Pressure  
Drop  
6000  
8000  
10000  
12000  
15000  
1.  
194.1  
221.1  
243.2  
261.9  
285.6  
207.9  
236.9  
260.5  
280.6  
306.0  
219.8  
250.4  
275.4  
296.6  
323.5  
232.6  
265.0  
291.4  
313.9  
342.4  
0.18  
0.31  
0.48  
0.67  
0.88  
1
TABLE 50: HOT WATER COIL (1 ROW 25 & 30 TON)  
Capacity (MBH) at Entering Water  
Temperature  
GPM  
CFM  
Based on 60°F entering air temperature, 2.00” maxi-  
mum air pressure drop across the coil.  
140 °F  
160 °F  
180 °F  
200 °F  
1
TABLE 47: STEAM COIL (1 ROW, 40 TON)  
6000  
8000  
91.4  
102  
115.3  
128.8  
139.5  
148.4  
159.2  
129.4  
147  
139.3  
155.8  
168.8  
179.6  
192.9  
156  
163.6  
182.9  
198.4  
211.2  
226.9  
182.7  
207.7  
228.2  
245.6  
267.8  
190.1  
217.5  
240.2  
259.7  
284.8  
194.1  
222.8  
246.8  
267.5  
294.1  
Capacity (MBH) at Steam Pressure (PSI)  
CFM  
2
6
10  
15  
10  
10000  
12000  
15000  
6000  
110.4  
117.3  
125.9  
103  
8000  
11000  
14000  
17000  
20000  
1.  
221.1  
252.9  
278.2  
299.4  
317.6  
236.9  
271.0  
298.0  
320.7  
340.2  
250.4  
286.4  
315.0  
339.0  
359.6  
265.0  
303.1  
333.4  
358.8  
380.6  
8000  
116.8  
128.2  
137.8  
150  
177.2  
194.7  
209.5  
228.2  
162.5  
185.8  
205.1  
221.8  
243  
20  
10000  
12000  
15000  
6000  
161.3  
173.6  
189  
Based on 60°F entering air temperature, 2.00” maxi-  
mum air pressure drop across the coil.  
TABLE 48: STATIC RESISTANCE STEAM COIL (25 &  
30 TON)  
107.6  
122.8  
135.5  
146.4  
160.3  
110.1  
126.1  
139.6  
151.2  
166.1  
135  
8000  
154.3  
170.3  
184  
CFM  
6000  
8000  
10000  
12000  
15000  
30  
10000  
12000  
15000  
6000  
Air Pressure  
Drop  
0.11  
0.18  
0.26  
0.36  
0.54  
201.6  
138  
166  
8000  
158.2  
175.2  
189.8  
208.6  
190.5  
210.9  
228.5  
251.3  
40  
10000  
12000  
15000  
1.  
Based on 60°F entering air temperature, 2.00” maximum  
pressure drop across the hot water coil.  
Johnson Controls Unitary Products  
67  
         
882108-YIM-B-1012  
1
TABLE 53: WATER PRESSURE DROP (1 ROW, 40  
TONS)  
TABLE 51: HOT WATER COIL (1 ROW, 40 TON)  
Capacity (MBH) at Entering Water  
Temperature  
GPM  
10  
20  
30  
40  
GPM  
CFM  
Water  
Pressure  
Drop  
140 °F  
160 °F  
180 °F  
200 °F  
0.9  
3.0  
6.0  
10.0  
8000  
11000  
14000  
17000  
20000  
8000  
102  
128.8  
144.1  
155.9  
165.4  
173.3  
147  
155.8  
174.4  
188.8  
200.4  
210.1  
177.2  
202.3  
222.4  
239  
182.9  
205.1  
222.1  
235.8  
247.3  
207.7  
237.2  
260.8  
280.5  
297.3  
217.5  
250.3  
276.9  
299.3  
318.6  
222.8  
257.5  
285.8  
309.7  
330.6  
114  
10  
123.2  
130.6  
136.8  
116.8  
133.2  
146.2  
157  
TABLE 54: HOT WATER COIL (2 ROW, 25 & 30  
1
TON)  
Capacity (MBH) at Entering Water  
Temperature  
GPM  
CFM  
11000  
14000  
17000  
20000  
8000  
167.7  
184.2  
197.9  
209.6  
154.3  
177.4  
196.1  
211.8  
225.3  
158.2  
182.7  
202.6  
219.5  
234.2  
140 °F  
160 °F  
180 °F  
200 °F  
6000  
8000  
177.5  
203.8  
224.8  
242.2  
263.6  
198.1  
232.2  
260.7  
285.0  
316.0  
206.1  
243.6  
275.3  
302.9  
338.4  
210.5  
249.8  
283.3  
312.7  
351.0  
223.8  
257.2  
284.1  
306.4  
333.8  
248.9  
292.0  
328.1  
359.0  
398.4  
258.7  
305.9  
345.9  
380.7  
425.7  
263.9  
313.3  
355.6  
392.7  
440.9  
270.4  
311.1  
343.9  
371.1  
404.6  
300.0  
352.2  
395.9  
433.4  
481.3  
311.4  
368.4  
416.8  
458.9  
513.4  
317.4  
377.1  
428.2  
473.0  
531.3  
317.3  
365.5  
404.2  
436.4  
476.1  
351.3  
412.7  
464.1  
508.3  
564.8  
364.2  
431.1  
488.0  
537.6  
601.7  
371.1  
441.1  
501.0  
553.6  
622.1  
20  
20  
10000  
12000  
15000  
6000  
166.2  
122.8  
141.2  
155.9  
168.3  
179.1  
126.1  
145.6  
161.4  
174.7  
186.3  
253.2  
185.8  
213.8  
236.4  
255.4  
271.8  
190.5  
220  
11000  
14000  
17000  
20000  
8000  
8000  
30  
40  
60  
10000  
12000  
15000  
6000  
8000  
11000  
14000  
17000  
20000  
10000  
12000  
15000  
6000  
40  
244.1  
264.5  
282.3  
8000  
1.  
Based on 60°F entering air temperature, 2.00” maximum  
pressure drop across the hot water coil.  
80  
10000  
12000  
15000  
TABLE 52: WATER PRESSURE DROP (1 ROW, 25 &  
30 TON)  
1.  
Based on 60°F entering air temperature, 2.00” maximum  
pressure drop across the hot water coil.  
GPM  
10  
20  
30  
40  
Water  
Pressure  
Drop  
0.9  
3.0  
6.0  
10.0  
68  
Johnson Controls Unitary Products  
       
882108-YIM-B-1012  
TABLE 55: WATER PRESSURE DROP (2 ROW, 25 &  
30 TON)  
TABLE 57: STATIC RESISTANCE HOT WATER COIL  
(25 & 30 TON)  
CFM  
6000  
8000  
10000  
15000  
GPM  
20  
40  
60  
80  
Air Pressure  
Drop 1 Row  
0.07  
0.11  
0.16  
0.32  
Water  
Pressure  
Drop  
0.9  
3.0  
6.0  
10.0  
Air Pressure  
Drop 2 Row  
0.14  
0.23  
0.33  
0.65  
TABLE 56: WATER PRESSURE DROP (2 ROW, 40  
TON)  
TABLE 58: STATIC RESISTANCE HOT WATER COIL  
(40 TON)  
CFM  
8000  
11000  
14000  
20000  
GPM  
20  
40  
60  
80  
Air Pressure  
Drop 1 Row  
0.11  
0.19  
0.29  
0.52  
Water  
Pressure  
Drop  
0.9  
3.0  
6.0  
10.0  
Air Pressure  
Drop 2 Row  
0.23  
0.39  
0.58  
1.06  
NOTE: Water pressure drop numbers are based on 60°F  
entering air temperature, 2.00” maximum air pres-  
sure drop across the hot water coil(s). AHRI certi-  
fied ratings at covering other conditions are  
available upon request. Hot water coils are  
approved for use with glycol (rates available upon  
request.  
Johnson Controls Unitary Products  
69  
       
882108-YIM-B-1012  
FIGURE 27 - HOT WATER COIL - 25 & 30 TON, 1 ROW, AT 10 GPM  
FIGURE 28 - HOT WATER COIL - 25 & 30 TON, 1 ROW, AT 20 GPM  
70  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
FIGURE 29 - HOT WATER COIL - 25 & 30 TON, 1 ROW, AT 30 GPM  
FIGURE 30 - HOT WATER COIL - 25 & 30 TON, 1 ROW, AT 40 GPM  
Johnson Controls Unitary Products  
71  
   
882108-YIM-B-1012  
FIGURE 31 - HOT WATER COIL - 25 & 30 TON, 2 ROW, AT 60 GPM  
FIGURE 32 - HOT WATER COIL - 25 & 30 TON, 2 ROW, AT 80 GPM  
72  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
FIGURE 33 - HOT WATER COIL - 40 TON, 1 ROW, AT 10 GPM  
FIGURE 34 - HOT WATER COIL - 40 TON, 1 ROW, AT 20 GPM  
Johnson Controls Unitary Products  
73  
   
882108-YIM-B-1012  
FIGURE 35 - HOT WATER COIL - 40 TON, 1 ROW, AT 30 GPM  
FIGURE 36 - HOT WATER COIL - 40 TON, 1 ROW, AT 40 GPM  
74  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
FIGURE 37 - HOT WATER COIL - 40 TON, 2 ROW, AT 20 GPM  
FIGURE 38 - HOT WATER COIL - 40 TON, 2 ROW, AT 40 GPM  
Johnson Controls Unitary Products  
75  
   
882108-YIM-B-1012  
FIGURE 39 - HOT WATER COIL - 40 TON, 2 ROW, AT 60 GPM  
FIGURE 40 - HOT WATER COIL - 40 TON, 2 ROW, AT 80 GPM  
76  
Johnson Controls Unitary Products  
   
882108-YIM-B-1012  
FIGURE 41 - STEAM COIL - 25 & 30 TON (1 ROW)  
FIGURE 42 - STEAM COIL - 40 TON (1 ROW)  
Johnson Controls Unitary Products  
77  
   
882108-YIM-B-1012  
FIGURE 43 - TYPICAL CONTROL WIRING  
78  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
FIGURE 44 - LEGEND  
Johnson Controls Unitary Products  
79  
 
882108-YIM-B-1012  
FIGURE 45 - TYPICAL 25 TON POWER WIRING  
80  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
FIGURE 46 - TYPICAL STANDARD GAS HEAT WIRING  
Johnson Controls Unitary Products  
81  
 
882108-YIM-B-1012  
FIGURE 47 - TYPICAL MODULATING GAS HEAT WIRING  
82  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
MOTORS  
GAS FURNACE SAFETY FEATURES  
COMBUSTION AIR PROVING  
Outdoor fan motors are permanently lubricated and require  
no maintenance. Lubrication, if desired, is to be performed by  
a qualified service agency.  
Combustion air proving is provided by a pressure switch. As  
the motor approaches full speed, this switch closes before  
any other circuit or gas component can be energized.  
Ventor motors are factory lubricated for an estimated 10-year  
life.  
ROLLOUT  
Indoor Fan Motors - The indoor blower motor features ball-  
bearings that do not require periodic lubrication. Periodic  
lubrication of the motor bearings can extend the life but is  
Rollout protection is provided by a switch mounted on the  
heat shield of each furnace module. The switch senses any  
flame or excessive heat in the burner compartment. When  
the switch opens, the furnace module is immediately locked  
out until there is a break in power to the specific furnace mod-  
ule and the manual itch is reset. Note that only the module  
with the open rollout switch will be locked out, the remaining  
modules will continue to operate although all should be  
inspected.  
optional.  
Damage can occur if the bearings are over lubri-  
cated. Use grease sparingly.  
A trip of the rollout switch likely indicates a flue restriction, an  
opening in the flue passageway, defective pressure switch or  
a loose combustion blower wheel. Corrective action should  
be taken accordingly.  
To go to bypass mode, the bypass VFD as installed in this  
unit must be switched by hand on the front of the bypass  
enclosure in the fan cabinet of the rooftop unit. It does not  
automatically go to bypass mode if the drive fails.  
MAINTENANCE  
The switches on the front of the bypass box control its run  
mode. For normal running:  
NORMAL MAINTENANCE  
•
•
•
The ON/OFF rotary power switch must be in the ON  
position.  
The BYPASS/OFF/DRIVE switch S1 should be in the  
DRIVE position.  
The HAND/STOP/AUTO switch S2 should be in the  
AUTO position, so that the unit control will properly run  
the fan and control the speed.  
The TEST/NORMAL switch S3 should be in the NOR-  
MAL position.  
Prior to any of the following maintenance proce-  
dures, shut off all power to the unit. Failure to do  
so could cause personal injury.  
•
Label all wires prior to disconnection when servic-  
ing controls. Wiring errors can cause improper and  
dangerous operation. Verify proper operation after  
servicing.  
If the unit is operated with the manual bypass  
switch in the LINE (BYPASS) position and there  
are VAV boxes present, the boxes must be driven  
to the full-open position using a customer-supplied  
power source to prevent over-pressuring the  
ductwork.  
Periodic maintenance normally consists of changing or clean-  
ing filters and (under some conditions) cleaning the main  
burners.  
FILTERS  
Inspect once a month. Replace disposable or clean perma-  
nent type as necessary. The dimensional size of the replace-  
ment filter must be the same as the replaced filter (Refer to  
Table 15).  
Perform all maintenance operations on the blower  
motor with power disconnected from the unit. Do  
not attempt to lubricate bearings with the unit in  
operation.  
Johnson Controls Unitary Products  
83  
             
882108-YIM-B-1012  
NOTE: Exercise care when cleaning the coil so that the coil  
TABLE 59: INDOOR BLOWER BEARING  
LUBRICATION SCHEDULE  
fins are not damaged.  
Do not permit the hot condenser air discharge to be  
obstructed by overhanging structures or shrubs.  
Operating Speed (RPM)  
1000 1500  
Relubrication Cycle (Months)  
Shaft Size (Inches)  
500  
2000  
GAS BURNER  
1-1/16 - 1-7/16  
1-1/2 - 1-3/4  
1-7/8 - 2-3/16  
2 -1/4 - 3  
6
6
6
6
6
6
6
4
6
6
4
4
6
4
4
2
Periodically (at least annually at the beginning of each heat-  
ing season) make a visual check of the main burner flame.  
TO CLEAN BURNERS  
Remove them from the furnace as explained in BURNER  
INSTRUCTIONS. Clean burners with hot water applied along  
top of the burner.  
On an annual basis, check the motor for accumulations of  
dust, etc. That may block the cooling slots in the motor shell.  
Check for loose, damaged or misaligned drive components.  
Check that all mounting bolts are tight. Replace defective  
parts as required.  
COMBUSTION AIR DISCHARGE  
Visually inspect discharge outlet periodically to make sure  
that the buildup of soot and dirt is not excessive. If necessary,  
clean to maintain adequate combustion air discharge.  
If desired, every three years remove both pipe plugs at each  
end shell and clean out any hardened grease or foreign mat-  
ter. Replace one plug on each end with a clean grease fitting.  
Using a low pressure grease gun, pump grease (Chevron  
SRI-2 or equivalent) into the bearing cavity until new grease  
shows at the open port. Do not over-lubricate. Run the motor  
for ten minutes until excess grease is purged from the cavity.  
Replace the plugs.  
CLEANING FLUE PASSAGES AND HEATING ELEMENTS  
With proper combustion adjustment, the heating element of a  
gas fired furnace will seldom need cleaning. If the element  
should become sooted, it can be cleaned as follows:  
1. Remove the burner assembly as outlined in BURNER  
INSTRUCTIONS.  
FAN DRIVES  
2. Remove the screws holding the top of the flue collector  
box. Carefully remove the top of the flue collector box.  
The draft wheel, housing, and draft motor can remain  
assembled to the flue box top, if cleaning of these com-  
ponents is not required.  
Units are supplied with fan shaft bearings that do not require  
maintenance but may be relubricated per Table 59.  
Lubricate with a premium quality NLGI 2 grade multi-purpose  
roller bearing grease having corrosion inhibitors, anti-oxidant  
additives and mechanical stability for high speed operation.  
The grease should also have a minimum base oil viscosity of  
500 SUS at 100°F. Do not use a heavy, long fibered grease.  
3. This will provide access to flue baffles, then remove the  
flue baffles from the tube interiors. To remove, the flue  
baffles, remove the stainless steel screws from the vest  
panel. Refer to Figure 48.  
The presents of dirt, moisture or chemical fumes around the  
bearings requires more frequent lubrication.  
4. Using a wire brush on a flexible wand, brush out the  
inside of each heat exchanger from the burner inlet and  
flue outlet ends.  
Fill bearings with lubricant prior to extended shutdown or stor-  
age. Rotate the shaft monthly during idle periods.  
5. Brush out the inside of the flue collector box, and the flue  
baffles.  
Avoid excessive grease purging from seals during lubrication,  
this reduces the life of the bearing.  
6. Run the wire brush down the vent hoods from the flue  
collector end.  
OUTDOOR COIL  
7. If soot build-up is particularly bad, remove the vent motor  
and clean the wheels and housings. Run the wire brush  
down the flue extension at the outlet of the vent hous-  
ings.  
Dirt should not be allowed to accumulate on the outdoor coil  
surface or other parts in the air circuit. Cleaning should be as  
often as necessary to keep coil clean. Use a brush, vacuum  
cleaner attachment, or other suitable means. If water is used  
to clean coil, be sure power to the unit is shut off prior to  
cleaning.  
8. After brushing is complete, blow all brushed areas with  
air or nitrogen. Vacuum as needed.  
9. Replace parts in the order they were moved in steps 1 to  
4.  
84  
Johnson Controls Unitary Products  
             
882108-YIM-B-1012  
10. Assure that all seams on the vent side of the combustion  
systems are air tight. Apply a high temperature (+500°F)  
sealing compound where needed (Dow Corning, Silastic  
736, Loctite Superflex 596 or equivalent).  
The restrictor plate must also be sealed to furnace tube  
sheet.  
SECURE OWNERS APPROVAL  
NOTE: One end of each flue baffle is provided  
with a sharper bend than the other end - this  
sharper bend must be positioned at the tube and  
attached with a stainless steel screw.  
When the system is functioning properly, secure the owner’s  
approval. Show him the location of all disconnect switches  
and the room temperature sensors. Teach him how to start  
and stop the unit and how to adjust the temperature settings  
within the limitations of the system.  
OUTLET TUBES  
"A"  
"A"  
FLUE BAFFLE  
REMOVE  
SCREWS  
SECTION "A" - "A"  
FIGURE 48 - TYPICAL FLUE BAFFLE  
Johnson Controls Unitary Products  
85  
   
882108-YIM-B-1012  
25 TON CHARGING CURVE  
550  
500  
450  
400  
350  
300  
250  
105 F  
95 F  
85 F  
75 F  
65 F  
200  
75  
100  
125  
150  
175  
SUCTION PRESSURE (PSIG)  
FIGURE 49 - 25 TON CHARGING CURVE  
86  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
30 TON CHARGING CURVE  
550  
500  
450  
400  
350  
300  
250  
200  
105 F  
95 F  
85 F  
75 F  
65 F  
75  
100  
125  
150  
175  
SUCTION PRESSURE (PSIG)  
FIGURE 50 - 30 TON CHARGING CURVE  
Johnson Controls Unitary Products  
87  
 
882108-YIM-B-1012  
40 TON CHARGING CURVE  
550  
500  
450  
400  
350  
300  
250  
105 F  
95 F  
85 F  
75 F  
65 F  
200  
75  
100  
125  
150  
175  
SUCTION PRESSURE (PSIG)  
FIGURE 51 - 40 TON CHARGING CURVE  
88  
Johnson Controls Unitary Products  
 
882108-YIM-B-1012  
PRESSURE DROP ACROSS A DRY EVAPORATOR COIL  
25T  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13  
NOMINAL CFM (THOUSANDS)  
FIGURE 52 - PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM - 25 TON  
Johnson Controls Unitary Products  
89  
 
882108-YIM-B-1012  
PRESSURE DROP ACROSS A DRY EVAPORATOR  
COIL - 30T  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15  
NOMINAL CFM (THOUSANDS)  
FIGURE 53 - PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM - 30 TON  
90  
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882108-YIM-B-1012  
PRESSURE DROP ACROSS A DRY EVAPORATOR COIL  
40T  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18  
NOMINAL CFM (THOUSANDS)  
FIGURE 54 - PRESSURE DROP DRY EVAPORATOR COIL VS SUPPLY AIR CFM - 40 TON  
Johnson Controls Unitary Products  
91  
 
R-410A QUICK REFERENCE GUIDE  
Refer to Installation Instructions for specific installation requirements.  
R-410A Refrigerant operates at 50 - 70 percent higher pressures than R-22. Be sure that servicing  
equipment and replacement components are designed to operate with R-410A.  
R-410A Refrigerant cylinders are rose colored.  
Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400, or DOT BW400.  
Recovery equipment must be rated for R-410A.  
Do Not use R-410A service equipment on R-22 systems. All hoses, gages, recovery cylinders, charging  
cylinders and recovery equipment must be dedicated for use on R-410A systems only.  
Manifold sets must be at least 700 psig high side, and 180 psig low side, with 550 psig retard.  
All hoses must have a service pressure rating of 800 psig.  
Leak detectors must be designed to detect HFC refrigerants.  
Systems must be charged with liquid refrigerant. Use a commercial type metering device in the  
manifold hose.  
R-410A can only be used with POE type oils.  
POE type oils rapidly absorb moisture from the atmosphere.  
Vacuum pumps will not remove moisture from POE type oils.  
Do not use liquid line driers with a rated working pressure rating less than 600 psig.  
Do not install suction line driers in the liquid line.  
A liquid line drier is required on every unit.  
Do not use a R-22 TXV. If a TXV is to be used, it must be a R-410A TXV.  
Never open system to atmosphere when under a vacuum.  
If system must be opened for service, evacuate system then break the vacuum with dry nitrogen and  
replace all filter driers.  
FIGURE 55 - R-410A QUICK REFERENCE GUIDE  
Subject to change without notice. Printed in U.S.A.  
Copyright © 2012 by Johnson Controls, Inc. All rights reserved.  
882108-YIM-B-1012  
Supersedes: 882108-YIM-A-0712  
Johnson Controls Unitary Products  
5005 York Drive  
Norman, OK 73069  
 

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