INSTALLATION & OPERATING
INSTRUCTIONS FOR
ARUF, ARPF, ARPT and AEPT
SERIES AIR HANDLER
®
US
C
Made in the USA by:
Goodman Manufacturing Company, L.P.
IO-230F
2550 North Loop West, Suite 400 - Houston, Texas 77092
© 2003-2004 Goodman Manufacturing Company, L.P.
08/04
Download from Www.Somanuals.com. All Manuals Search And Download.
MODEL IDENTIFICATION
WARNING
AR
U
A
F
024
00
A
1
THIS PRODUCT IS FACTORY SHIPPED FOR USE WITH
A 208-230/1/60 ELECTRICAL POWER SUPPLY. THIS AIR
HANDLER MUST NOT BE RECONFIGURED TO OPERATE
WITH ANY OTHER POWER SUPPLY.
Revision
WARNING
Electrical
Supply
WHEN INSTALLING OR SERVICING THIS EQUIPMENT,
SAFETY CLOTHING, INCLUDING HAND AND EYE
PROTECTION, IS STRONGLY ADVISED. IF INSTALLING
THIS EQUIPMENT IN AN AREA THAT HAS SPECIAL
SAFETY REQUIREMENTS (HARD HATS ETC.), OBSERVE
THESE REQUIREMENTS. TO PROTECT THE UNIT WHEN
WELDING CLOSE TO THE PAINTED SURFACES, THE
USE OF A QUENCHING CLOTH IS STRONGLY ADVISED
TO PREVENT SCORCHING OR MARRING OF THE
EQUIPMENT FINISH.
208 - 230/1/60
Feature
A = Initial Release
B = Downflow
C = Factory Sealed
Factory Installed Heat
00 = None
Normal Capacity
018 = 1½ Ton
024 = 2 Ton
WARNING
THE UNITED STATES ENVIRONMENTAL PROTECTION
AGENCY (“EPA”) HAS ISSUED VARIOUS REGULATIONS
REGARDING THE INTRODUCTION AND DISPOSAL OF
REFRIGERANTS INTRODUCED INTO THIS UNIT.
FAILURE TO FOLLOW THESE REGULATIONS MAY HARM
THE ENVIRONMENT AND CAN LEAD TO THE
IMPOSITION OF SUBSTANTIAL FINES. THESE
REGULATIONS MAY VARY DUE TO THE PASSAGE OF
LAWS. ACERTIFIED TECHNICIAN MUST PERFORM THE
INSTALLATION AND SERVICE OF THIS PRODUCT.
SHOULD QUESTIONS ARISE, CONTACT YOUR LOCAL
EPA OFFICE.
030-032 = 2½ Ton
036 = 3 Ton
042 = 3½ Ton
048 & 049 = 4 Ton
060 & 061 = 5 Ton
Refrigerant Metering
T = TXV
F = Flowrater
Cabinet Finish
P = Painted
U = Unpainted Galvanized Steel
Model Series
AE = Air Handler with ECM™ Motor
AR = Air Handler with PSC Motor
PRODUCT DESCRIPTION
With the exception of theARPF024-00B-1,ARPF036-00B-
1, ARPF048-00B-1 and the ARPF060-00B-1 (refered to in
this manual as the “B” series), these air handlers are
designed to be installed in the upflow, downflow, and
horizontal orientations.
CARBON MONOXIDE POISONING HAZARD
Special Warning for Installation of Furnace or Air Handling Units in
Enclosed Areas such as Garages, Utility Rooms or Parking Areas
The “B” series air handlers are factory configured to be
installed in the downflow orientation. DO NOT INSTALL
THE “B” SERIES IN THE UPFLOW OR HORIZONTAL
POSITION.
Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as unventilated garages, utility rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulting from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.
The “C” series airhandler is designed for low leak
applications. These air handlers are designed for indoor
use only and must only be installed in a weatherized area.
DO NOT INSTALL OUTDOORS. Typical residential
installations for this product include alcoves, basements,
attics, crawl spaces, and closets. Other nonresidential
applications are acceptable provided they comply with this
manual and local/state codes.
This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device continues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
throughout the structure if the furnace or air handler is operating in any
mode.
CO can cause serious illness including permanent brain damage or death.
B10259-216
-
IO-230F
08/04
3
Download from Www.Somanuals.com. All Manuals Search And Download.
When matched with a Goodman or Amana brand
condenser or heat pump, anARI certified rating is available
for many combinations.
HEAT KIT NOMINAL kW
CFM
3
18
5
28
21
17
14
12
10
9
6
8
10
15
20
21
600
800
35
26
21
18
15
13
12
11
41
31
25
21
18
15
14
12
The AEPT models are equipped with an ECMTM motor. An
ECMTM motor is more efficient than a standard PSC motor
and offers features such as soft-start, controlled off-delays,
and constant CFM. Additional features and the associated
controls are discussed later in this manual.
13
42
34
28
24
21
19
17
1000 11
50
42
36
31
28
25
1200
1400
1600
1800
2000
9
8
7
6
5
56
48
42
37
34
62
53
46
41
37
Electric heat is available for all models. This is an accessory
and is not provided with the equipment. Use only the
electric heat kits identified in the “Electric Heat” section of
this manual.
These air handlers are intended for use with a room
thermostat. This thermostat is not supplied with this
equipment. Only thermostats that use 24 VAC operating
voltage can be used.
8
Table 1
230/1/60 Supply Voltage - Temperature Rise Table °F
HEAT KIT NOMINAL kW
CFM
3
17
5
6
8
10
15
20
21
600
800
27
20
16
13
11
10
9
34
25
20
17
14
13
11
10
39
30
24
20
17
15
13
12
UNIT INSPECTION
13
40
32
27
23
20
18
16
Upon delivery, inspect the unit for damage. Any damage
must be reported immediately to the carrier. Do not install
this equipment if it is determined that the integrity or safety
has been compromised by freight damage.
1000 10
48
40
34
30
27
24
1200
1400
1600
1800
2000
8
7
6
6
5
53
46
40
36
32
59
51
44
39
35
Using the table “Model Identification” section, check the
equipment model number to ensure the unit is appropriately
sized for the condenser unit.
8
Table 2
220/1/60 Supply Voltage - Temperature Rise Table °F
If an incorrect unit is supplied, it must not be installed and
it is to be returned to the supplier. The manufacturer
assumes no responsibility for the installation of incorrectly
delivered units.
HEAT KIT NOMINAL kW
CFM
3
5
25
19
15
13
11
9
6
8
10
15
20
21
600
800
16
32
24
19
16
14
12
11
10
37
38
22
19
16
14
12
11
The evaporator coil contains a high-pressure inert gas
holding charge.
12
38
30
25
22
19
17
15
1000 10
46
38
33
28
25
23
1200
1400
1600
1800
2000
8
7
6
5
5
51
43
38
34
30
56
48
42
37
34
ELECTRIC HEAT
WARNING
REFER TO THE “INSTALLING ELECTRIC HEAT” SECTION
OF THIS MANUALAND THE INSTRUCTIONS PROVIDED
WITH THE HEAT KIT FOR THE CORRECT INSTALLATION
PROCEDURE.
8
8
Table 3
208/1/60 Supply Voltage - Temperature Rise Table °F
Note: For installations not indicated above the following
formula is to be used:
WARNING
THE ELECTRICAL CHARACTERISTICS OF THE AIR
HANDLER, THE ELECTRIC HEAT KIT, AND THE SUPPLY
POWER MUSTAGREE, UNLESS USING HKR3 (3 PHASE)
SERIES HEAT KIT. THISAIR HANDLER DOES NOT HAVE
FACTORY INSTALLED ELECTRIC HEAT. ELECTRIC
HEAT ISAVAILABLE ASANACCESSORY. IF INSTALLING
THIS OPTION, THE ONLY HEATKITS THAT CAN BE USED
ARE THE HKR SERIES AS INDICATED BELOW: NOTE:
THEAMANABRAND EHK, ECB, EDB, AND EDK KITSARE
NOT APPROVED FOR USE WITH THESE AIR
HANDLERS.
TR = (kW x 3412) x (Voltage Correction) x 1.08 / CFM
Where: TR
KW
= Temperature Rise
= Heater Kit Actual kW
3412 = Btu per kW
Voltage Correction
=.96 (230 Supply Volts)
=.92 (220 Supply Volts)
=.87 (208 Supply Volts)
1.08
= Constant
CFM = Measured Airflow
The heating mode temperature rise is dependent upon the
system airflow, the supply voltage, and the heat kit size
(kW) selected. Use Tables 1-3 to determine the
temperature rise (oF).
NOTE: The Temperature Rise Tables can also be used to
determine the air handler airflow delivery. When using
these tables for this purpose set the room thermostat to
IO-230F
08/04
4
Download from Www.Somanuals.com. All Manuals Search And Download.
maximum heat and allow the system to reach steady state
conditions. Insert two thermometers, one in the return air
and one in the supply air. The temperature rise is the supply
air temperature minus the room air temperature.
require external filtering. A washable filter is available as
an accessory. To ensure optimum performance frequent
filtercleaningisadvised.RefertoTable 5 for the appropriate
filter.
Use HKR specification sheets to determine the HKR
available for a given air handler.
ARUFor
ARPT
model
ARPF
model
AEPT
model
Filter
Number Required
Qty
HKR INSTALLATION
018-032
036-042
048-061
024, 036
n/a
048, 060 036, 060 FIL 48-61
n/a
30
FIL 18-32
FIL 36-42
1
1
1
Follow instructions listed in Installation and Operating
Instructions shipped with the heat kit.
LOCATION
Table 5
WARNING
THIS AIR HANDLER IS DESIGNED FOR INDOOR
ELECTRICAL SUPPLY WIRE AND MOP
INSTALLATION ONLY. DO NOT INSTALL OUTDOORS.
WARNING
TOAVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE,
USE ONLY COPPER CONDUCTORS. BEFORE
SERVICING OR INSTALLING THIS EQUIPMENT, THE
ELECTRICAL POWER TO THIS UNIT MUST BE IN THE
“OFF” POSITION AND ALL POWER SUPPLIES
DISCONNECTED.
When installing this air handler consideration to minimize
the length of refrigerant tubing is to be given. Do not install
the air handler in a location either above or below the
condenser that violates the instructions provided with the
condenser. The clearance from a combustible surface to
the unit is 0". However, service clearance is to take
precedence. Allow a minimum of 24" in front of the unit for
service clearance. When installing in an area directly over
a finished ceiling (such as an attic), an emergency drain
pan is required directly under the unit. See local and state
codes for additional requirements. When installing this unit
in an area that may become wet, elevate the unit with a
sturdy, non-porous material. In installations that may lead
to physical damage (i.e. a garage) it is advised to install a
protective barrier to prevent such damage.
CAUTION
MORE THAN ONE DISCONNECT MAY EXIST. FAILURE
TO OBSERVE THIS WARNING MAY RESULT IN AN
ELECTRICAL SHOCK THAT CAN CAUSE PERSONAL
INJURY OR DEATH.
WARNING
THE UNIT MUST HAVE AN UNINTERRUPTED,
UNBROKEN ELECTRICAL GROUND TO MINIMIZE THE
POSSIBILITY OF PERSONALINJURY IF AN ELECTRICAL
FAULT SHOULD OCCUR. THE ELECTRICAL GROUND
CIRCUIT MAY CONSIST OF AN APPROPRIATELY SIZED
ELECTRICAL WIRE CONNECTING THE GROUND LUG
IN THE UNIT AND CONTROL BOX WIRE TO THE
BUILDING’S ELECTRICAL SERVICE PANEL. OTHER
METHODS OF GROUNDING ARE PERMITTED IF
PERFORMED IN ACCORDANCE WITH THE “NATIONAL
ELECTRIC CODE” (NEC)/”AMERICAN NATIONAL
STANDARDS INSTITUTE” (ANSI)/”NATIONAL FIRE
PROTECTION ASSOCIATION” (NFPA) 70 AND LOCAL/
STATE CODES. IN CANADA, ELECTRICAL GROUNDING
IS TO BE IN ACCORDANCE WITH THE CANADIAN
ELECTRIC CODE CSA C22.1. FAILURE TO OBSERVE
THIS WARNING CAN RESULT IN ELECTRICAL SHOCK
THAT CAN CAUSE PERSONAL INJURY OR DEATH.
DUCTWORK
This air handler is designed for a complete supply and
return ductwork system.
CAUTION
DO NOT OPERATE THIS PRODUCT WITHOUT ALL
DUCTWORK ATTACHED.
To ensure correct system performance, the ductwork is to
be sized to accommodate 375-425 CFM per ton of cooling
with the static pressure not to exceed .5" WC. Inadequate
ductwork that restricts airflow can result in improper
performance and compressor or heater failure. Ductwork
is to be constructed in a manner that limits restrictions and
maintains suitable air velocity. Ductwork is to be sealed to
the unit in a manner that will prevent leakage.
Inspection of the Building Electrical Service
Return Ductwork. DO NOT TERMINATE THE RETURN
DUCTWORK IN AN AREA THAT CAN INTRODUCE
TOXIC, OR OBJECTIONABLE FUMES/ODORS INTO
THE DUCTWORK. The return ductwork is to be introduced
into the air handler bottom (upflow configuration).
This unit is designed for single-phase electrical supply. DO
NOT OPERATE ON A THREE-PHASE POWER SUPPLY.
Measure the power supply to the unit. The supply voltage
must be in agreement with the unit nameplate power
requirements and within the range shown in Table 6.
Return Air Filters. Each installation must include a return
air filter. This filtering may be performed at the air handler
or externally such as a return air filter grille. Air handlers
mounted in the downflow orientation, including “B” series,
Nominal Input Minimum Voltage Maximum Voltage
208/230
187
253
Table 6
IO-230F
08/04
5
Download from Www.Somanuals.com. All Manuals Search And Download.
Wire Sizing
Air Handler Only (Non-Heat Kit Models)
Wire size is important to the operation of your equipment.
Use the following check list when selecting the appropriate
wire size for your unit.
The building supply connects to the stripped black and white
wires contained in the air handler electrical compartment
cavity. A ground screw is also contained in this area. Attach
the supply wires to the air handler conductors as shown in
the unit wiring diagram using appropriately sized solderless
connectors or other NEC or CEC approved means.
•
Wire size must carry the Minimum Circuit Ampacity
(MCA).
Refer to the NEC (USA) or CSA (Canada) for wire
sizing. The unit MCA for the air handler and the optional
electric heat kit can be found on the unit Series and
Rating Plate.
Air Handler With Non-Circuit Breaker Heat Kits
A terminal block is provided with the HKR kit to attach the
supply and air handler connections. Follow the HKR
Installation Manual and wiring diagram for complete wiring
details.
•
Wire size allows for no more than a 2% voltage drop
from the building breaker/fuse panel to the unit.
Air Handler With Heat Kits Containing a Circuit Breaker.
HKR models with a “C” suffix contain a circuit breaker(s).
The air handler has a plastic cover on the access panel
that will require either one or both sections to be removed
to allow the heat kit circuit breaker(s) to be installed. See
the HKR Installation Instructions for further details. The air
handler wires and supply wires are installed directly onto
the HKR circuit breaker(s) as shown in the HKR Installation
Manual and wiring diagram.
Refer to the latest edition of the National Electric Code
or in Canada the Canadian Electric Code when
determining the correct wire size. The following table
shows the current carrying capabilities for copper
conductors rated at 75oC with a 2% voltage drop. Use
the Table 7 to determine the voltage drop per foot of
various conductors.
Maximum Allowable Length in Feet
to Limit Voltage Drop to 2%*
Low Voltage Connections
Several combinations of low voltage schemes are available,
depending on the presence of a heat kit and whether the
heat kit is single-stage or multi-staging. The low voltage
connections are determined by whether the outdoor unit is
a condenser or heat pump. The 24V-control voltage
connects the air handler to the room thermostat and
condenser. Low voltage wiring is to be copper conductors.
A minimum of 18AWG must be used for installations up to
50’ and 16AWG for installations over 50’. Low voltage
wiring can be made through the top of the cabinet or through
either side. See the “Thermostat Wiring” section of this
manual for the ARUF, ARPF and ARPT models for typical
low voltage wiring connections. The Supplemental
Installation Manual included with the AEPT product shows
the wiring diagrams for these models.
Minimum Circuit Ampacity (MCA)
Wire Size
(AWG)
10
75
15
50
20
37
59
25
30
35
40
45
14
12
10
8
NR NR NR NR NR
118 79
47
NR NR NR NR
63 54 NR NR
75 68
471 314 235 188 157 134 118 110
188 125 95
75
301 201 150 120 100 86
6
*Based on NEC 1996
Table 7
Maximum Overcurrent Protection (MOP)
Every installation must include an NEC (USA) or CEC
(Canada) approved overcurrent protection device. Also,
check with local or state codes for any special regional
requirements.
REFRIGERANT LINES
This protection can be in the form of fusing or HACR style
circuit breakers. The Series and Rating Plate can be used
as a guide for selecting the MAXIMUM overcurrent device.
WARNING
TO PROTECT THE UNIT WHEN WELDING CLOSE TO
THE PAINTED SURFACES, THE USE OF A QUENCHING
CLOTH IS STRONGLY ADVISED TO PREVENT
SCORCHING OR MARRING OF THE EQUIPMENT FINISH.
SOLDER WITH A MINIMUM OF 5% SILVER IS
RECOMMENDED.
NOTE: Fuses or circuit breakers are to be sized larger
than the equipment MCA but not to exceed the MOP.
Electrical Connections – Supply Voltage
USE COPPER CONDUCTORS ONLY.
A knockout is provided on the air handler top panel or side
to allow for the entry of the supply voltage conductors. If
the knockouts on the cabinet sides are used for electrical
conduit, an adapter ring must be used in order to meet
UL1995 safety requirements. An NEC or CEC approved
strain relief is to be used at this entry point. The wire is to
be sized in accordance with the “Electrical Wire and MOP”
section of this manual. Some areas require the supply
wire to be enclosed in conduit. Consult your local codes.
Tubing Preparation
All cut ends are to be round, burr free, and cleaned. Failure
to follow this practice increases the chances for refrigerant
leaks. The suction line is spun closed and requires pipe
cutters to cut off the closed end.
Post Brazing
Quench all welded joints with water or a wet rag.
IO-230F
08/04
6
Download from Www.Somanuals.com. All Manuals Search And Download.
Piping Size
TXV Models (ARPT and AEPT)
For the correct tubing size, follow the specification for the
condenser/heat pump.
IMPORTANT NOTE: In order to prevent damage to the
sensing bulb, it is not permanently installed in the factory.
This bulb is to be removed prior to brazing. Place in proper
location after braze joint has cooled (Figure 3).
1. Loosen the 13/16 nut 1 TURN ONLY. No pressure
loss indicates possible leak.
2. Remove the nut and discard the black or brass cap.
3. Remove large front panel and remove sensing bulb
from suction manifold. TO PREVENT DAMAGE TO
SENSING BULB, ENSURE BULB IS NOT NEAR
FLAME OR IN CONTACT WITH SUCTION LINE OR
MANIFOLD DURING BRAZING.
4. Use a tube cutter to remove the spin closure on the
suction line.
5. Remove the tailpiece clamped to the exterior.
6. Slide the 13/16 nut into position (Figure 1). Braze
tailpiece to liquid tube.
WARNING
THIS COIL IS SHIPPED UNDER PRESSURE. FOLLOW
THESE INSTRUCTIONS TO PREVENT INJURY (SEE
FIGURES 1 AND 2).
Evaporator Coil Metering Devices
Flowrater Models (ARUF and ARPF)
For most installations no change to the flowrater orifice is
required. In mix-matched applications (condenser/heat
pump is a different tonnage than the air handler), a different
flowrater orifice may be required. See the Goodman piston
kit chart PKC-00 or latest revision. Consult your local
distributor for the details regarding mix-matched orifice
sizing.
7. Insert the suction line into the connection, slide the
insulation and the rubber grommet at least 18" away
from the braze joint.
8. AFTER THE TAILPIECE HAS COOLED, position the
white Teflon seal and hand tighten the nut.
9. Torque the 13/16 nut to 20-30 ft-lbs. [2.77-4.15 meter
kg].
1. Loosen the 13/16 nut 1 TURN ONLY. No pressure loss
indicates possible leak.
2. Remove the nut and discard the black or brass cap.
3. Remove the check piston to verify it is correct. See
piston kit chart in instructions.
4. Use a tube cutter to remove the spin closure on the
suction line.
10. Replace sensing bulb to horizontal portion of suction
line (Figure 3) just inside cabinet. Place bulb parallel
with suction line in the 10 o’clock position. If 10 o’clock
position is inaccessible, place in the 2 o’clock position.
Secure bulb to line with strapping provided in literature
envelope. Insulate sensing bulb to line with self-
adhesive insulation provided in envelope.
5. Remove the tailpiece clamped to the exterior.
6. Slide the 13/16 nut into position. Braze tailpiece to
the liquid tube.
7. Insert the suction line into the connection, slide the
insulation and the rubber grommet at least 18" away
from the braze joint.
8. AFTER THE TAILPIECE HAS COOLED, position the
white Teflon seal and hand tighten the nut.
9. Torque the 13/16 nut to 20-30 ft-lbs. [2.77-4.15 meter
kg].
11. Replace access panel, suction line grommet, and
insulation.
REATTACH BULB HERE USING
STRAPPING AND INSULATION
PROVIDED
10. Replace suction line grommet and insulation.
PLASTIC or BRASS CAP
APPLY FLOWRATER
GASKET FOR AIR
TIGHT APPLICATION
13/16" NUT
TAILPIECE
PISTON
WHITE
TEFLON SEAL
Figure 1
SUCTION LINE
WITH SPIN CLOSURE
Figure 3
For the majority of installations, no adjustment to the TXV
setting is required. However, if the measured superheat is
less than 8° or greater than 20°, an adjustment is required.
The adjustment stem is at the base of the valve (opposite
the diaphragm) under the flare nut.
RUBBER
GROMMET
Figure 2
IO-230F
08/04
7
Download from Www.Somanuals.com. All Manuals Search And Download.
To increase the superheat (measured at the condenser
base valve), turn the stem clockwise (in). Similarly, to
decrease the superheat, turn the stem counterclockwise
(out). Use a ¼ “ refrigeration wrench for this function.
Refer to Figures 5 through 7 for the location of the
components referenced in the following steps. Figure 5
illustrates the new installation location for the removed
components.
1. Before inverting the air handler, remove all access
panels, the coil rear channel bracket, and the filter
close-off panel.
Note: Design point for the system is 10 degrees of
superheat (measured at the condenser base valve) at 95
degree outdoor air.
2. Remove the evaporator coil and the horizontal drain
pan. Discard horizontal drain pan.
Charging Note: Air handlers with TXV’s (ARPT’s and
AEPT’s) should be charged to 15 degrees of subcooling at
the indoor inlet. This supercedes any subcooling value
listed with condensing unit’s literature.
3. Install the provided plastic plug into the vacated access
panel.
AEPT MOTOR ORIENTATION
4. Remove the two (2) zee coil support brackets and
insulation retaining brackets.
If the unit is in the upflow position, there is no need to rotate
the motor. If the unit is in the downflow or horizontal position,
loosen motor mount and rotate motor as shown in Figure
4. Be sure motor is oriented with the female connections
on the casing pointing down. If the motor is not oriented
with the connections pointing down, water will collect in
the motor and cause premature failure.
5. Remove the tie bracket.
6. Install the DPI Insulation Kit onto the bottom of the drain
pan.
Return Air Side
of Unit
Access
Panel
Rear
Channel
Bracket
FRONT VIEW
SIDE VIEW
Zee Coil
Support Bracket
Coil Retaining
Bracket
FOR OPTIONAL
SAFETY GND USE
MOUNTING BOLTS
Tie Bracket
NOTE: The filter provision is not applicable
in THIS downflow application.
Figure 5
FEMALE CONNECTIONS
7. Install the zee coil supports and the wrapper stiffeners.
8. Install the tie bracket.
9. Install the rear channel bracket.
Figure 4
AEPT Motor Orientation
10. To prevent possible condensate “blow off” the insulation
retainers are to be laid into the evaporator coil pan as
shown in Figure 6.
CONVERSION TO DOWNFLOW
The ARPF “B” series product is factory equipped for
downflow operation and no field conversion is required. It
is recommeneded that the conversion to downflow be
performed before placing the air handler in its final location
and in an area that allows for access to all sides. To prevent
the evaporator coil pan from “sweating” the DPI accessory
insulation kit is to be used when performing this conversion.
Note: The DPI kit is not supplied with this product and is to
be purchased separately. See Table 8 for the correct DPI
kit.
ARUFor ARPT
AEPT model
Insulation Kit
model
018-032
036-042
048-061
n/a
30
036, 060
DPI18-30/20
DPI36-42/20
DPI48-61/20
3" Flat Insulation
Retainer (Both Sides)
Table 8
Figure 6
IO-230F
08/04
8
Download from Www.Somanuals.com. All Manuals Search And Download.
To complete the conversion, slide the evaporator coil into
thechassisandattachthethree(3)accesspanels.(Figure
7).
7. Install the plastic plug removed in step 5 to the right
side lower access panel and the oval shaped rubber
gasket to the lower left access panel.
8. Reinstall the evaporator coil with the horizontal panel
on the left side. Note: Push the assembly completely
to the rear to ensure the engagement of the upflow
pan with the rear channel bracket.
CONVERSION TO HORIZONTAL
The “B” series product is not suitable for horizontal
application and must not be used for this type of installation.
The following describes converting to “Horizontal Left-
Hand”. The only field modification required for conversion
to “Horizontal Right-Hand” is the removal of the plastic
knockouts in the horizontal panel drain connections.
9. Install the “J” bracket (removed in step 2) to support
the upflow pan to the tie channel.
10. Attach all panels and the refrigerant management
device.
TOP OF WRAPPER
INSULATION JACKET
ZEE COIL SUPPORT
Secondary Drain
Primary Drain
WRAPPER STIFFENER
Figure 8
DRAIN PAN INSULATION
DPI KIT (HATCHED AREA)
CONDENSATE REMOVAL
The drain pan has a primary and secondary drain
connection (Figure 8). Condensate removal is performed
by attaching a ¾” PVC pipe to the evaporator coil pan and
terminated in accordance with local or state Plumbing/
HVAC codes. The installation must include a “P” style trap
that is located as close as is practical to the evaporator
coil. Exercise caution not to over-tighten the drain
connection(s) in order to prevent possible damage to the
evaporator drain pan. See Figure 9 for details of a typical
condensate line “P” trap.
BLOWER
NEOPRENE GASKET
MOTOR
Figure 7
As shown in Figure 8, it is recommended that the
conversion to horizontal be performed before placing the
air handler in its final location and in an area that allows for
access to all sides.
Installations that are above a finished ceiling may require
a field supplied auxiliary drain pan. Consult local codes on
this requirement.
1. Remove the (3) air handler access panels.
DRAIN
CONNECTION
2. Remove the “J” shaped bracket that retains the
evaporator coil.
UNIT
2" MINIMUM
FLEXIBLE
3. Remove the flowrater (or TXV) from the lower left side
access panel and slide out the evaporator coil and
horizontal drain pan.
TUBING (HOSE
3" MINIMUM
OR PIPE)
4. Remove the gasket from the horizontal pan drain
connections.
POSITIVE LIQUID
SEAL (REQ'D)
5. Remove the oval shaped plastic plug from the left side
access panel. Remove the oval shaped rubber gasket
seal from the lower right side access panel.
Figure 9
Use of a condensate removal pump is permitted when
necessary. This condensate pump should have provisions
for shutting off the control voltage should a blocked drain
occur. A trap must be installed between the unit and the
condensate pump.
6. The drain connections for the horizontal pan are sealed
with a thin coating of plastic. Carefully knock out this
plastic seal with a screwdriver and hammer. Note:
The upper drain will become the secondary drain
which is mandatory in many municipalities .
IO-230F
08/04
9
Download from Www.Somanuals.com. All Manuals Search And Download.
IMPORTANT NOTE: THE EVAPORATOR COIL IS
COATED WITH OILS THAT MAY DISSOLVE
STYROFOAM AND CERTAIN TYPES OF PLASTICS.
THEREFORE, A REMOVAL PUMP OR FLOAT SWITCH
MUST NOT CONTAIN ANY OF THESE MATERIALS.
Dipswitch Functions
The AEPT air handler motor has an electronic control that
contains an eight (8) position dip switch. The function of
these dipswitches are shown in Table 9.
Dipswitch Number
Function
Tip: Priming the “P” trap may avoid improper draining at
the initial installation and at the beginning of the cooling
season.
1
2
3
4
5
6
7
8
Electric Heat
N/A
Indoor Thermostat
ACHIEVING 2% LOW LEAKAGE RATE
Cooling & Heat Pump CFM
CFM Trim Adjust
Ensure that the Neoprene gasket with PSA remains intact
on all surfaces that the access panels are secured to.
These surfaces are the entire length of the wrapper and
areas between the upper tie plate, upper and lower access
panels. Be sure that upper access panel breaker insert
gasket is intact and also flowrator gasket is installed on
the lower access panel. An additional drain hole cover is
required.
Table 9
CFM Delivery
Tables 10 and 11 show the CFM output for dipswitch
combinations 1-2, and 5-6.
ARUF/ARPF MOTOR
Motor Speed Adjustment
Model
Switch Switch EMERGENCY
(ELECTRIC)
HP
w/BACKUP
HEAT
1
2
The motors in allARUF andARPF motors are multi-speed
PSC motors. The color of the wire coming from the motor
to the “COM” terminal on the control board defines in which
speed the motor will operate. The black wire represents
high speed, the red wire represents low speed, and the
blue wire (select models only) represents medium speed.
To change speeds, remove the wire attached to the “COM”
terminal on the control board, and swap it with the wire (on
terminal “M1” or “M2”) with the color that will give the
desired speed.
HEAT
OFF
ON
OFF
OFF
ON
1100
850
1210
935
AEPT30
OFF
OFF
ON
700
775
OFF
OFF
ON
AEPT36
and
AEPT60
2050
1750
1600
1200
2150
1835
1680
1260
OFF
ON
ON
TABLE 10 - ELECTRIC HEAT CFM
NOTE: In some models, not all speed taps are allowable
for certain electric heat applications. Refer to air handler
Series and Ratings plate for minimum speed.
Model
Switch Switch Nominal Cooling CFM
Tonnage
5
6
AEPT MOTOR
OFF
ON
OFF
OFF
ON
2 ½
2
1100
800
This section references the operation characteristics of
the AEPT model motor only. The ECM control board is
factory set with dipswitch #4 in the “ON” position and all
other dipswitches in the “OFF” position. For most
applications this setting is to be changed according
to the electric heat size and the outdoor unit selection.
AEPT30
OFF
OFF
ON
600
1 ½
5
OFF
OFF
ON
AEPT36
and
AEPT60
1800
1580
1480
1200
4
3 ½
3
OFF
ON
ON
The AEPT product uses a General Electric ECMTM motor.
This motor provides many features not available on the
traditional PSC motor. These features include:
• Improved Efficiency
• Constant CFM
• Soft Start and Stop
Table 11 - Cooling and Heat Pump CFM
Thermostat “Fan Only Mode”
During “Fan Only Mode” operation, the CFM output is 30%
of the cooling setting.
CFM Trim Adjust
• Improved Humidity Control
Minor adjustments can be made through the dip switch
combination of 7-8. The following Table 12 shows the
switch position for this feature.
Motor Speed Adjustment
Each ECMTM blower motor has been preprogrammed for
operation at 4 distinct airflow levels when operating in
Cooling, H.P. Heating, Backup Heating (Electric Heating),
and Backup + H.P. Heating. Each mode has 4 levels to
deliver different Air Flow CFM [L/s]. The adjustment is
performed by changing the dipswitch(s) either to an “OFF”
or “ON” position.
CFM
+10%
-15%
Switch 7 Switch 8
ON
OFF
ON
OFF
Table 12
IO-230F
08/04
10
Download from Www.Somanuals.com. All Manuals Search And Download.
Humidity Control
When using a Humidistat (normally closed), cut jumper PJ6 on the control board. The Humidistat will only affect cooling
airflow by adjusting the Airflow to 85%.
Two Stage Heating
When using staged electric heat, cut jumper PJ4 on the control board.
Thermostat Wiring
Use thermostat wiring diagram Figures 10 thru 13 and those provided with the thermostat when making these connections.
NOTE: DO NOT USE THESE DIAGRAMS FOR AEPT MODELS. SEE SUPPLEMENTAL INSTALLATION AND
OPERATING INSTRUCTIONS FOR AEPT MODELS.
ROOM THERMOSTAT
#18 GA. 4 WIRES WITH
COOLING 3 WIRES WITHOUT
R
G
W
Y
AR UNIT
R
G
RED
GREEN
WHITE
W
Y
TO CONDENSING
UNIT 24V. CONNECTIONS
CONTACTOR
COIL
BLUE
#18 GA. 2 WIRES
Figure 10 - Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 10KW and below
ROOM THERMOSTAT
W2
Y G R
W
AR UNIT
#18 GA. 4 WIRE WITH
COOLING 3 WIRE WITHOUT
R
G
Y
RED
GREEN
WHITE
BROWN
BLUE
OUTDOOR
THERMOSTAT
(OPTIONAL)
W
#18 GA. 2 WIRES
CONDENSING
UNIT 24V. CONNECTIONS
CONTACTOR
COIL
#18 GA. 2 WIRES
Figure 11 - Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 15KW and above
IO-230F
08/04
11
Download from Www.Somanuals.com. All Manuals Search And Download.
FIGURE 12
AR/ARUF/ARPF/ARPT
18-60
10 KW & BELOW
TYPICAL H/P
ROOM THERMOSTAT
#18 GA. 7 WIRE
HEAT PUMP
W2
AR UNIT
C
O
Y
R
W2
Y
O
C
G
R
E
B
W
H
I
T
E
O
Y
E
L
L
O
W
R
E
D
L
U
E
R
A
N
G
E
R
G
R
RED
R
Y
G
GREEN
WHITE
O
SEE
NOTE
#3
BR
W
W
W
BL
BL
BLUE
BL
#18 GA. 5 WIRE
(OPTIONAL)
OUTDOOR THERMOSTAT
CLOSE ON TEMPERATURE FALL
#18 GA. 6 WIRE NEEDED WHEN OT IS USED
AR/ARUF/ARPF/ARPT
18-60
FIGURE 13
ABOVE 10 KW
TYPICAL H/P
ROOM THERMOSTAT
#18 GA. 7 WIRE
HEAT PUMP
W2
AR UNIT
C
O
Y
R
W2
Y
O
C
G
R
E
B
W
H
I
T
E
O
Y
E
L
L
O
R
E
D
L
U
E
R
A
N
G
E
R
G
R
RED
R
Y
O
W
BR
G
GREEN
WHITE
SEE
NOTE
#3
W
W
SEE
NOTE
#2
1
2
4
EHR
BROWN
BR
3
BL BLUE
BL
BL
#18 GA. 5 WIRE
OT-1
OT-2
(OPTIONAL)
OUTDOOR THERMOSTAT
CLOSE ON TEMPERATURE FALL
#18 GA. 7 WIRE NEEDED WHEN TWO OT'S ARE USED
COLOR CODES
NOTES:
NOMENCLATURE
1) OUTDOOR THERMOSTAT (OT-1) SHOULD BE THE
FIRST TO CLOSE AND THE LAST TO OPEN.
OT ---OUTDOOR THERMOSTAT (OPTIONAL)
EHR -EMERGENCY HEAT RELAY (OPTIONAL)
R --RED
Y --YELLOW
BL-BLUE
2) CONNECT WHITE AND BROWN WIRES FROM AIR-
HANDLER TOGETHER IF OT-2 IS NOT USED.
3) REMOVE WIRE WHEN USING OUTDOOR THERMOSTAT
BR-BROWN
O --ORANGE
W -WHITE
G --GREEN
Important: If outdoor thermostat is not used, tie white and brown wires from Air Handler together
IO-230F
08/04
12
Download from Www.Somanuals.com. All Manuals Search And Download.
THERMOSTATS
•
•
•
Drain pan and drain tubing has been leak checked.
Return and supply ducts are sealed.
Note: Second Stage heat can be accomplished by multi-
stage heating thermostat or the addition of an outdoor
thermostat as shown in Figures 12 and 13.
Unit is elevated when installed in a garage or where
flammable vapors may be present.
Goodman part number CHT18-60 is a single-stage cool
and single-stage heat thermostat.
•
•
Unit is protected from vehicular or other physical
damage.
Return air is not obtained from any areas where there
may be objectionable odors, flammable vapors or
products of combustion such as carbon monoxide
(CO), which may cause serious personal injury or
death.
Goodman part number HPT18-60 is a single-stage cool,
two-stage heat pump thermostat. The first stage is heat
pump heating and the second stage is optional electric heat.
If additional features are desired, such as digital or
programmable capabilities, these thermostats are
commercially available. Follow the thermostat
manufacturer’s instruction for installation.
REGULAR MAINTENANCE
START-UP PROCEDURE
WARNING
•
Prior to start-up, ensure that all electrical connections
are properly sized and tightened.
DISCONNECT ALL POWER SUPPLIES BEFORE
PERFORMING ANY SERVICE. NOTE THAT THERE MAY
BE MORE THAN ONE POWER SUPPLY. FAILURE TO
OBSERVE THIS WARNING CAN RESULT IN ELECTRICAL
SHOCK THAT CAN CAUSE PERSONAL INJURY OR
DEATH.
•
All panels must be in place and secured. For Air Tight
application, neoprene gasket must be positioned at
prescribed locations to achieve 2% leakage.
•
•
Tubing must be leak free.
Unit should be elevated, trapped and pitched to allow
for drainage.
The only item to be maintained on a regular basis by the
user is the circulating air filter(s). Filter should be cleaned
or replaced regularly. A certified service technician must
perform all other services.
•
•
Low voltage wiring is connected.
Auxiliary drain is installed when necessary and pitched
to allow for drainage.
Quality Makes the Difference!
All of our systems are designed and manufactured with the same high quality standards
regardless of size or efficiency. We have designed these units to significantly reduce the
most frequent causes of product failure. They are simple to service and forgiving to operate.
We use quality materials and components. Finally, every unit is run tested before it leaves
the factory. That’s why we know. . . There’s No Better Quality.
•
•
•
•
•
•
Products
Warranties
Customer Services
Parts
Contractor Programs and Training
Financing Options
© 2003-2004 Goodman Manufacturing Company, L.P.
IO-230F
08/04
13
Download from Www.Somanuals.com. All Manuals Search And Download.
|