321 Studios Oil Furnace FLF110D48E User Manual

OIL FURNACE  
INSTALLATION INSTRUCTIONS  
MODELS  
FH085D36E  
FH110D48E  
FLF110D48E  
FLR110D48E  
FC085D36E  
FH110D60E  
FLF110D60E  
FLR110D60E  
FLF085D36E  
FLR085D36E  
FLR140D60E  
WARNING  
READ ALL INSTRUCTIONS CAREFULLY BEFORE BEGINNING THE  
INSTALLATION.  
THIS INSTALLATION MUST COMPLY WITH THESE INSTRUCTIONS AND  
THE REQUIREMENTS OF ALL GOVERNING CODES AND ORDINANCES FOR  
THE INSTALLATION LOCATION.  
IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW AND UNDERSTAND  
ALL OF THESE REQUIREMENTS.  
FAILURE TO DO SO COULD CREATE A HAZARD RESULTING IN PROPERTY  
DAMAGE, BODILY INJURY OR DEATH.  
FOR YOUR SAFETY  
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR  
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.  
IMPORTANT NOTICE  
THIS FURNACE IS NOT INTENDED FOR USE AS A CONSTRUCTION  
HEATER. USE OF THIS FURNACE DURING CONSTRUCTION AND FINISHING  
PHASES OF A STRUCTURE IS CONSIDERED AS "OPERATION IN A  
CORROSIVE ATMOSPHERE" AND "UNUSUAL, NEGLIGENT OR IMPROPER  
USE" AND AS SUCH ARE CONSIDERED EXCLUSIONS BY THE BARD  
MANUFACTURING COMPANY LIMITED WARRANTY.  
Manual:  
Supersedes: 2100-422A  
File:  
Date:  
2100-422B  
Bard Manufacturing Company  
Bryan, Ohio 43506  
VOL. I, TAB 3  
09-23-03  
Since 1914...Moving ahead just as planned.  
Copyright 2003  
GETTING OTHER INFORMATION and PUBLICATIONS  
These publications can help you install the furnace. You  
can usually find these at your local library or purchase  
them directly from the publisher. Be sure to consult  
current edition of each standard.  
FOR MORE INFORMATION, CONTACT  
THESE PUBLISHERS:  
ACCA  
Air Conditioning Contractors of America  
1712 New Hampshire Ave. N.W.  
Washington, DC 20009  
National Fuel Gas Code ........... ANSIZ223.1/NFPA54  
National Electrical Code ...................... ANSI/NFPA70  
Telephone: (202) 483-9370  
Fax: (202) 234-4721  
ANSI  
American National Standards Institute  
11 West Street, 13th Floor  
New York, NY 10036  
Standard for the Installation .............. ANSI/NFPA90A  
of Air Conditioning and Ventilating Systems  
Telephone: (212) 642-4900  
Fax: (212) 302-1286  
Standard for Warm Air...................... ANSI/NFPA90B  
Heating and Air Conditioning Systems  
ASHRAE American Society of Heating Refrigerating,  
and Air Conditioning Engineers, Inc.  
1791 Tullie Circle, N.E.  
Standard for Chimneys, Fireplaces, Vents ... NFPA 211  
and Solid Fuel Burning Appliances  
Atlanta, GA 30329-2305  
Telephone: (404) 636-8400  
Fax: (404) 321-5478  
Load Calculation for .......................... ACCA Manual J  
Residential Winter and Summer Air Conditioning  
NFPA  
National Fire Protection Association  
Batterymarch Park  
P.O. Box 9101  
Quincy, MA 02269-9901  
Telephone: (800) 344-3555  
Fax: (617) 984-7057  
Duct Design for Residential .............. ACCA Manual D  
Winter and Summer Air Conditioning  
and Equipment Selection  
Manual 2100-422  
Page  
1
INSTALLATION and OPERATING INSTRUCTIONS  
LOCATING THE FURNACE  
EQUIPMENT SELECTION  
When installing the furnace be sure to provide adequate  
space for easy service and maintenance. Locate the  
furnace as close to the chimney as practical, giving  
consideration to the accessibility of the oil burner,  
controls, and blower for service. Allow a minimum of  
24 inches at front of furnace for servicing oil burner.  
Allow adequate room for filter and blower  
maintenance. Clearance from combustible material as  
stated on the furnace and repeated in Table 1 must be  
maintained. For damp basement installations, a raised  
concrete pad is recommended. This will help keep the  
bottom of the furnace dry and reduce the risk of rusting.  
An accurate heating load calculation must be conducted  
using American Society of Heating, Refrigeration and  
Air Conditioning Engineers (ASHRAE) or Air  
Conditioning Contractors of America (ACCA) manuals.  
Do not add a large safety factor above the calculated  
value. If the calculated heating load requirement  
exceeds the heating capacity rating of a given model,  
use only the next larger size available. Never increase  
by any more than absolutely necessary based upon  
available equipment heating capacities. Always select  
based upon heat capacity (output), never use input  
capacities.  
An oil burner must have a generous supply of  
combustion air to operate properly. The flow of  
combustion and ventilating air must not be obstructed  
from reaching the furnace. See “Combustion Air  
Requirementssection.  
NOTE: It is the personal responsibility and  
obligation of the purchaser to contract a  
qualified installer to assure that installation  
is adequate and is in conformance with  
governing codes and ordinances.  
The furnace area must be kept clear and free of  
combustible materials, gasoline and other flammable  
vapors and liquids.  
This unit is not designed for mobile home or trailer  
installations. Always install furnace in a level position.  
TABLE 1  
MINIMUM CLEARANCES  
Minimum Installation Clearnaces — Inches  
Minimum Service  
Clearances  
Furnace  
Front Back Sides  
Plenum  
1
Flue  
Pipe  
Model  
Top  
Sides Duct  
Floor Front Back Sides  
FH085D36E  
FH110D48E  
FH110D60E  
4
4
4
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
9
9
9
C
C
C
24  
24  
24  
FLF085D36E  
FLR085D36E  
FLF110D48E  
FLF110D60E  
6
6
6
6
0
18  
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
9
9
9
9
NC  
NC  
NC  
NC  
24  
24  
24  
24  
24  
24  
24  
24  
18 *  
18 *  
18 *  
18 *  
0
FLR110D48E  
FLR110D60E  
FLR140D60E  
FC085D36E  
6
6
6
6
18  
18  
18  
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
9
9
9
9
NC  
NC  
NC  
24  
24  
24  
24  
24  
24  
24  
18 *  
18 *  
18 *  
NC **  
j
For the first three (3) feet from plenum. After three (3) feet, no clearance required.  
Combustible flooring  
C
NC Noncombustible floor  
Maintained on one side or the other to achieve filter access and/or blower service.  
*
** Floor must be noncombustible. For furnace only installation can be installed on combustible  
flooring only when installed on special base part no. CFB7 available from factory. When air  
conditioning coil cabinet DCB23-22 is used then use special base part no. CFB23.  
Manual 2100-422  
Page  
2
FIGURE 1  
FLF/R MODELS DIMENSIONS  
TABLE 2  
FLF/R MODELS DIMENSIONS (INCHES)  
FLF/FLR 085, 110 AND 140  
SPECIFICATION SHEET  
Plenum  
Cabinet  
B
Openings  
Flue Conection  
G
Air Filters  
Size  
1
Model  
Number  
A
C
D x E D x F  
No.  
Used  
J
TOP VIEW  
Width Depth Height Supply Return Location Dia.  
H
J
RETURN  
DUCT  
SUPPLY  
DUCT  
FLF085D36E  
FLR085D36E  
23 48.125 36.625 22x20 22x14  
23 48.125 36.625 22x20 22x14  
Front  
Rear  
6
6
31.625 5.125 16 x 20 x 1  
31.625 5.125 16 x 20 x 1  
1
1
FLF110D48E  
FLF110D60E  
FLR110D48E  
FLR110D60E  
23 48.125 40.625 22x20 22x14  
23 48.125 40.625 22x20 22x14  
23 48.125 40.625 22x20 22x14  
23 48.125 40.625 22x20 22x14  
Front  
Front  
Rear  
Rear  
6
6
6
6
35.625 5.125 20 x 20 x 1  
35.625 5.125 20 x 20 x 1  
35.625 5.125 20 x 20 x 1  
35.625 5.125 20 x 20 x 1  
1
1
1
1
D
FLR140D60E  
26 50.250 47.625 25x20 25x16  
Rear  
6
42.125 - - - 20 x 25 x 1  
1
j
Washable type filter 1nom. thickness  
"FLF" FLUE  
KNOCKOUT  
G
F
B
E
A
"FLF" FLUE  
KNOCKOUT  
REAR FLUE  
ON "FLR" MODELS  
"FLF" FLUE  
KNOCKOUT  
OPTIONAL  
HIGH VOLTAGE  
ENTRANCE  
LOW VOLTAGE  
ENTRANCE  
OPTIONAL  
LOW VOLTAGE  
ENTRANCE  
HIGH VOLTAGE  
ENTRANCE  
C
H
OIL  
ENTRANCE  
OPTIONAL  
OIL  
ENTRANCE  
OPTIONAL  
OIL ENTRANCE  
FILTER  
DOOR  
FRESH AIR  
KNOCKOUT  
LEFT SIDE VIEW  
FRONT VIEW  
RIGHT SIDE VIEW  
MIS-1815 A  
FIGURE 2  
FH MODELS DIMENSIONS  
21 7/8"  
TOP VIEW  
FH085 AND FH110  
SPECIFICATION SHEET  
SUPPLY  
OPENING  
19 7/8"  
30 1/2"  
FLUE  
KNOCKOUT  
23"  
FLUE  
KNOCKOUT  
FLUE  
KNOCKOUT  
OPTIONAL  
HIGH VOLTAGE  
ENTRANCE  
REAR CLEANOUT  
DOOR  
OPTIONAL  
LOW VOLTAGE  
ENTRANCE  
HIGH  
VOLTAGE  
ENTRANCE  
OPTIONAL  
OIL  
ENTRANCE  
53" (FH085)  
59" (FH110)  
OIL  
ENTRANCE  
LOW VOLTAGE  
ENTRANCE  
19 1/4"  
FRESH AIR  
KNOCKOUT  
OPTIONAL  
OIL  
ENTRANCE  
RETURN  
OPENING  
(CUT OUT)  
RETURN  
OPENING  
(CUT OUT)  
16"  
VESTIBULE  
DOOR  
LEFT SIDE VIEW  
RIGHT SIDE VIEW  
FRONT VIEW  
MIS-1814 A  
FIGURE 3  
FC085 MODEL DIMENSIONS  
21 7/8"  
SUPPLY  
OPENING  
FC085  
SPECIFICATION  
SHEET  
19 7/8"  
30 1/2"  
TOP VIEW  
FLUE  
KNOCKOUT  
23"  
FLUE  
KNOCKOUT  
FLUE  
KNOCKOUT  
OPTIONAL  
HIGH VOLTAGE  
ENTRANCE  
54 1/4"  
REAR  
CLEANOUT  
DOOR  
OPTIONAL  
LOW VOLTAGE  
ENTRANCE  
LOW VOLTAGE  
ENTRANCE  
OIL ENTRANCE  
HIGH VOLTAGE  
ENTRANCE  
OPTIONAL  
OIL ENTRANCE  
FRESH AIR  
KNOCKOUT  
OPTIONAL  
OIL ENTRANCE  
FRONT VIEW  
LEFT SIDE VIEW  
RIGHT SIDE VIEW  
RETURN  
OPENING  
18 1/8"  
BOTTOM VIEW  
MIS-1826  
19 1/8"  
Manual 2100-422  
Page  
5
DUCT WORK  
INSTALLING THE FURNACE  
The air distribution system should be designed and  
installed in conformance with manuals published by Air  
Conditioning Contractors of America (ACCA) as set  
forth in Manual D, or ASHRAE publications.  
INSTRUMENTSREQUIREDFORPROPER  
SETUP OF THE FURNACE  
It is important that a set of instruments capable of the  
following requirements be used for the setup of this  
furnace to ensure proper and safe operation:  
IMPORTANT  
1. Oil pump pressure gauge that measures up to  
150 PSI.  
When a furnace is installed so that supply  
ducts carry air circulated by the furnace to  
areas outside the space containing the  
furnace, the return air must also be handled  
by a duct(s) sealed to the furnace casing and  
terminating outside the space containing the  
furnace This is to prevent drawing possible  
hazardous combustion products into the  
circulated air.  
2. Smoke gun to pull smoke samples from flue.  
3. Draft gauge that will measure -.02” water column  
(W.C.)  
4. Duct static pressure gauge 0-1.0” W.C. range.  
5. Temperature gauge that can read from 50° F up to  
700° F.  
6. A gauge to measure CO2 or O2.  
INSTALLING A COOLING UNIT  
INSTALLATION  
When the furnace is used in connection with a cooling  
unit*, the furnace shall be installed parallel with or on  
the upstream side of the cooling unit to avoid  
condensation in the heating element. With a parallel  
flow arrangement, the dampers or other means used to  
control flow of air shall be adequate to prevent chilled  
air from entering the furnace, and if manually operated,  
must be equipped with means to prevent operation of  
either unit, unless the damper is in the full heat or cool  
position.  
A typical installation is shown in Figures 4 and 5. All  
parts of the furnace installation (furnace, oil tank and  
piping systems, combustion and ventilation air, venting,  
etc.) must comply with NFPA31, Installation of Oil  
Burning Equipment -- latest edition. This drawing  
shows the typical connecting parts needed to correctly  
install this furnace. Make sure that all parts of the  
heating system comply with the local codes.  
Check the furnace and your load calculation to verify  
that the unit is properly sized. (Refer to Equipment  
Selection” section on Page 2.)  
*
A cooling unit is an air conditioning coil, heat  
pump coil or chilled water coil.  
The correct size of unit needed may be substantially  
smaller than the unit being replaced due to home  
improvements and technology advancements since the  
initial installation.  
When installing a cooling unit above an FH or FL  
(below on an FC) series furnace, the coil must be  
spaced far enough from the furnace outlet to assure  
proper operation of the furnace. Bard supplied coils,  
when used with Bard supplied coil cabinets, are  
automatically positioned.  
INADEQUATE SUPPLY AIR and/or RETURN  
AIR DUCT SYSTEMS  
For top discharge FH and FL models, when coils are  
installed without using Bard coil cabinets or coils of  
another brand are used, the coil drain pan should be  
located a minimum of two (2) inches above the top of  
the furnace cabinet. If a greater clearance is specified  
by the coil manufacturer then it would apply.  
Short cycling because of limit control operation can be  
created by incorrectly designed or installed supply and/  
or return air duct systems.  
The duct systems must be designed using ASHRAE or  
ACCA design manuals and the equipment CFM and  
external static pressure ratings to insure proper air  
deliverycapabilities.  
NOTE: IF DRAIN PAN IS ANYTHING OTHER  
THAN A STEEL PAN PARTICULAR  
ATTENTION MUST BE GIVEN TO THE  
INSTALLATION INSTRUCTIONS FOR  
THE COIL TO MAKE SURE IT IS  
On replacement installations, particularly if equipment  
is oversized, the duct systems can easily be undersized.  
Modifications may be required to assure that the  
equipment is operating within the approved  
temperature rise range when under full rated input  
conditions, and that no short cycling on limit controls is  
occurring.  
ACCEPTABLE FOR USE WITH THESE  
OIL FURNACES HAVING MAXIMUM  
OUTLET AIR TEMPERATURE OF 200° F.  
See CFM versus static pressure curves on pages 33-36  
for additional information.  
Manual 2100-422  
Page  
6
FIELD WIRING  
WIRING  
All wiring must conform to the National Electrical  
Code and all local codes. A separate fuse or breaker  
should be used for the furnace.  
FACTORY WIRING  
All units are fully factory wired. Multispeed blowers  
are factory wired on high speed for cooling/manual fan  
operation. Heating speeds are wired for the largest  
input and may need lower speed for field installed low  
input nozzle. If replacement wire is necessary, use 105  
degrees C minimum. See electrical data, Table 3.  
TABLE 3  
ELECTRICALDATA  
Max. Time  
Delay Fuse  
or HACR  
Blower Motor  
Burner Motor  
Minimum  
Circuit  
Total  
Amps  
HP  
FLA  
HP  
FLA  
Model  
Volts-HZ-PH  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
115-60-1  
Ampacity Circuit Breaker  
FH085D36E  
FH110D48E  
FH110D60E  
FLF085D36E  
FLR085D36E  
FLF110D48E  
FLR110D48E  
FLF100D60E  
FLR100D60E  
FLR140D60E  
FC085D36E  
9.2  
1/3  
1/2  
3/4  
1/3  
1/3  
1/2  
1/2  
3/4  
3/4  
3/4  
1/3  
7.5  
10.5  
12.5  
5.6  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1/7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
1.7  
15  
16  
19  
15  
15  
16  
16  
19  
19  
19  
15  
15  
20  
20  
15  
15  
20  
20  
20  
20  
20  
15  
12.2  
14.2  
17.3  
17.3  
12.2  
12.2  
14.2  
14.2  
14.2  
7.3  
5.6  
10.5  
10.5  
12.5  
12.5  
12.5  
5.6  
Manual 2100-422  
Page  
7
FIGURE 4  
TYPICAL UNIT SETUP  
FLF UNIT SHOWN  
WARNING  
ALL WIRING MUST  
CONFORM TO THE  
NATIONAL ELECTRIC  
CODE AND ALL LOCAL  
CODES.  
!
Left side  
high voltage  
(unit power)  
entrance  
Inspection  
door  
Left side  
low voltage  
(thermostat)  
entrance  
Right side  
low voltage  
(thermostat)  
entrance  
Left side oil  
line entrance  
for opt. air boot  
To thermostat  
and optional  
A/C unit  
Left side  
oil line  
entrance  
To power  
source  
Oil line  
(see burner  
pump inst. for  
hookup info.)  
Shut off switch  
(if not fused,  
power line must  
include fuse or  
circuit breaker)  
Air Boot  
knockout  
(optional)  
Control panel  
(junction box  
in FH units)  
Power Wires:  
Black (HOT)  
White (NEUTRAL)  
Green (GROUND)  
Right side  
high voltage  
(unit power)  
entrance  
Right side  
oil line  
MIS-1836  
entrance  
Manual 2100-422  
Page  
8
FIGURE 5  
TYPICAL FLUE INSTALLATION REQUIREMENTS  
FRONT FLUE LOWBOY MODEL SHOWN  
(REPRESENTS ALL MODELS)  
INSTALLER NOTE:  
Thimble  
Follow all appropriate  
standards for installing  
needed venting system.  
Draft Regulator  
(Be sure to follow  
installation inst.  
supplied with  
regulator).  
1/4 inch per  
1 foot rise  
L
i
n
e
d
90° Rotatable  
Flue Box on front  
flue models  
(remove appropriate  
cabinet knockout).  
Mounting screws  
located under flue  
box cover.  
Flue Box  
Cover  
C
h
i
m
n
e
y
Optional  
Flue  
Locations  
Oil Burner  
Clean-out Door  
(keep closed)  
Optional Fresh  
Air Boot (remove  
rect. knockout).  
MIS-1825  
Manual 2100-422  
Page  
9
OIL LINE PIPING  
BECKETT AFG OIL BURNER  
First determine whether the pipe system is to be a single  
line system or a two line system. All connections must  
be absolutely air tight or you will have a malfunction of  
the burner. When installing the piping, a good oil filter  
should be installed close to the burner. A single line  
system is recommended for gravity feed.  
This furnace is equipped with a high static Beckett AFG  
oil burner which is designed to produce adequate draft in  
nearly any vertically vented application. The burner  
employs the latest time tested controls of the highest  
quality. The controls consist of a high voltage Beckett  
solid state igniter, a Beckett “CleanCut” oil pump with  
an integral solenoid valve, and a Beckett R7184B  
primary control.  
A typical single inside tank installations shown in  
Figure 6. For installation details for this and other tank  
configurations, refer to NFPA31 -- latest edition. All  
tank and pipe setups must comply with NFPA31.  
FIGURE 6  
TYPICAL SINGLE INSIDE TANK INSTALLATION  
Vent Cap  
2" Cap  
2" Fill Pipe  
1-1/4"  
Vent Pipe  
Return Line  
Guage  
Bushing,  
2" x 1-1/2" or  
1-1/4"  
Oil  
Tank  
Gate Valve  
3/8" x 4"  
nipple  
6"  
3/8" x 3/8"  
Adapter  
3/8" O.D. Copper  
Fuel Tubing  
Legs (either 1-1/4"x10"  
or 1-1/2"x10" nipples)  
MIS-1823  
Bushing  
Oil Filter  
Manual 2100-422  
Page 10  
These controls were selected for their proven high  
quality, dependability, and serviceability. With proper  
maintenance this burner assembly will provide many  
years of reliable service.  
BECKETT SOLID STATE IGNITER  
This igniter differs from the traditional iron core  
transformer in that it produces a 14,000 volt spark  
instead of a 10,000 volt spark of the iron core  
transformer. This hotter spark provides for cleaner,  
faster ignitions. Being solid state technology this  
igniter is less susceptible to problems caused by voltage  
variations. It also has a greater ability to ignite cold  
and/or inconsistent oil. The solid state igniter is wired  
to the primary control the same as an iron core  
transformer.  
All units are shipped with the oil burner installed, and  
with high rate oil nozzle installed designed for use with  
No. 1 or No. 2 fuel oil. Inspect firepot refractory  
before firing to be sure it has not been jarred out of  
position in shipment. Burner air tube must not  
extend beyond inside surface of firepot. Burner  
head should be centered on the combustion chamber  
opening. See Figures 19 and 20.  
BECKETT R7184B PRIMARY CONTROL  
The R7184B Interrupted Electronic Oil Primary is a  
line voltage, safety rated, interrupted ignition oil  
primary control for residential oil burners. The R7184B  
used with a cad cell flame sensor, operates the oil  
burner and oil valve. The primary controls fuel oil,  
senses flame, controls ignition spark and is designed to  
notify a remote alarm circuit before going into lockout  
when equipped with a flame monitoring system.  
WARNING  
Never attempt to use gasoline in your furnace.  
Gasoline is more combustible than fuel oil and  
could result in a serious explosion causing  
damage, injury or death.  
This primary control possesses the latest technology, is  
a very simple control to operate and provides additional  
troubleshooting features to ease service and reduce  
down time. The operational guide for the R7184B  
primary control is provided following on  
Page 12.  
The following is a detailed explanation of each control  
included in the Becket AFG Oil Burner, how each  
operates, how to set up the burner, and how to  
troubleshoot problems should they occur.  
BECKETT “CLEANCUT” OIL PUMP  
This oil pump is equipped with an oil solenoid valve  
installed in the pump housing. This feature provides  
quick cutoffs resulting in reduction in smoke after the  
burner shuts down. This is a time proven pump design  
and is capable of both one and two pipe systems. This  
pump requires a pre-purge style primary control such as  
the R7184B primary. All installation and set up  
instructions are outlined in the “Oil Pump  
Specification” section of the installation instructions  
manual.  
Manual 2100-422  
Page  
11  
BECKETT R7184B PRIMARY  
OPERATIONAL GUIDE  
Pre-Purge Delay 15 seconds on delay  
LED Codes Flashing 1/2 second on / 1/2 second off system is locked out or in restricted mode  
(hard lockout).  
Flashing 2 seconds on / 2 seconds off control is in recycle mode (soft lockout).  
ON CAD cell is sensing flame  
OFF CAD cell is not sensing flame.  
Ignition Trials On any given call for heat the  
control will allow three ignition trials. After the three  
trials the control will go into a soft lockout mode. The  
LED will flash 2 seconds on and 2 seconds off when  
in this recycle mode. The control may then be reset  
by pressing the RED reset button on the control. If  
within the same original call for heat the control will  
again allow three ignition trials followed by another  
soft lockout and a 2 second on / 2 second off LED  
code. The control my be reset one additional time by  
pressing the red reset button. This will allow three  
final ignition trials. If all three of the final ignition trials  
fail then the control goes into a hard lockout or  
Restricted Mode. This series of ignition failures must  
all occur with the original call for heat in order to  
reach the Restricted Mode. The LED will now flash  
1/2 second on / 1/2 second off indicating the  
restricted mode. The control can be resurrected from  
the restricted mode only by pressing and holding the  
red reset button for approximately 30 seconds until  
the LED flashes twice. Removing unit power or  
resetting the thermostat will not reset the control  
Checking CAD Cell With a call for heat and the burner ignited, press and release the red reset button. The  
LED will go out and then flash 1, 2, 3, or 4 times before returning to the run mode. The CAD cell resistance  
must be below 1600 ohms for proper operation.  
1 flash  
Less than 400 ohms  
2 flashes  
3 flashes  
4 flashes  
More than 400 and less than 800 ohms  
More than 800 and less than 1600 ohms  
More than 1600 and less than 5000 ohms  
Burner Option Flame Quality Monitor  
alarm, the security agency will notify the dealer of  
choice based upon information supplied by the home  
owner. The system will also be capable of being  
connected to a phone line that will contact the dealer  
directly with the alarm. This alarm will typical sound  
3 to 5 days prior to the primary control going into  
lockout giving the service agency a prior notice  
before a sooting condition or other failure can occur  
resulting in untold savings. This monitor system is  
available through your local distributor under the  
Honeywell part no. QS7100F.  
This control is trained to recognize and remember a  
good flame based on initial burner set up. Control  
then monitors the flame via the CAD cell signal for  
deviation in the combustion characteristics of the  
burner. If the control senses a deviation on the high  
side or on the low side from the original set up  
condition for three consecutive cycles, it will trigger  
an alarm circuit which can be tied to an audible local  
device to signal the home owner or into the home  
security system. Upon being notified of the of the  
Electronic Blower Control Board (EBC)  
blower on and off timings for both heating and  
cooling speeds are timed automatically. The heating  
blower off delay can be selected from four different  
timings by moving the selection jumper. The timings  
are as follows:  
This furnace is equipped with an Electronic Blower  
Control (EBC) which controls all comfort air blower  
operations. This EBC has three relays; one for  
heating speed, one for cooling speed, and one which  
isolates the TT signal from the oil primary control.  
Heating Blower ON delay 75 seconds from a call  
for heat.  
This EBC is designed to be very simple and  
dependable. This basic control allows for easy  
troubleshooting and maintenance. As illustrated in  
Figure 7 all connections are well marked. The  
Heating Blower OFF delay Selectable in seconds:  
150, 180. 210 or 240. Factory shipped at 240.  
Cooling Blower ON delay 6 seconds from a call for  
cooling.  
Cooling Blower OFF delay 60 seconds.  
Manual 2100-422  
Page  
12  
FIGURE 7  
ELECTRONIC BLOWER CONTROL  
TRANSFORMER 24V  
SECONDARY  
CONNECTIONS  
THERMOSTAT  
CONNECTIONS  
3 AMP FUSE  
HEATING BLOWER  
OFF DELAY  
ADJUSTMENT  
IN SECONDS.  
OIL PRIMARY T-T  
CONNECTIONS  
LINE VOLTAGE  
CONNECTION (HOT)  
HUMIDIFIER  
CONNECTION  
UNUSED BLOWER MOTOR  
SPEED CONNECTIONS  
HEATING BLOWER  
SPEED CONNECTION  
LINE VOLTAGE  
CONNECTION (COM, L2)  
MIS-1819  
ELECTRIC AIR  
CLEANER CONNECTION  
COOLING BLOWER  
SPEED CONNECTION  
Manual 2100-422  
Page  
13  
TABLE 4  
FURNACE DATA  
Furnace Installed Standard  
Field Installed Options  
2
2
2
1
Nozzle  
Size  
Heating  
1
Heating  
1
Heating  
Capacity  
BTUH  
Input  
BTUH  
Capacity Nozzle  
BTUH  
Input  
BTUH  
Capacity Nozzle  
Input  
Model Number  
FLF085D36E  
FLR085D36E  
FLF110D48E  
FLR110D48E  
FLF110D60E  
FLR110D60E  
FLR140D60E  
FC085D36E  
FH085D36E  
FH110D48E  
FH110D60E  
Size  
.65  
.65  
.85  
.85  
.85  
.85  
1.10  
.65  
.65  
.85  
.85  
BTUH  
74,000  
74,000  
96,000  
96,000  
96,000  
96,000  
125,000  
74,000  
74,000  
96,000  
96,000  
Size  
.55  
.55  
NA  
NA  
NA  
NA  
NA  
.55  
.55  
NA  
NA  
BTUH  
77,000  
77,000  
NA  
.75  
.75  
105,000  
105,000  
140,000  
140,000  
140,000  
140,000  
175,000  
105,000  
105,000  
140,000  
140,000  
85,000  
91,000  
91,000  
63,000  
63,000  
NA  
85,000  
1.00  
1.00  
1.00  
1.00  
1.25  
.75  
113,000  
113,000  
113,000  
113,000  
142,000  
85,000  
119,000  
119,000  
119,000  
119,000  
154,000  
91,000  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
77,000  
77,000  
NA  
63,000  
63,000  
NA  
.75  
85,000  
91,000  
1.00  
1.00  
113,000  
113,000  
119,000  
119,000  
NA  
NA  
j
70 degree hollow cone spray pattern, 100 PSIG pump pressure  
k
Annual fuel utilization efficiency and heating capacity based upon U.S. Government standard  
test using D.O.E. isolated combustion rating procedure.  
1. PREPARATION STEPS  
BURNER SETUP AND ADJUSTMENT  
PROCEDURES  
A. Calibrate and Check Operation of  
All oil burner installations should be performed by a  
qualified installer in accordance with regulations of the  
National Fire Protection Standard for Oil-Burning  
Equipment, NFPA31 -- latest edition, and in complete  
compliance with all local codes and authorities having  
jurisdiction. A qualified installer is an individual or  
agency who is responsible for the installation and  
adjustments of the heating equipment and who is  
properly licensed and experienced to install oil-burning  
equipment in accordance with all codes and ordinances.  
Measuring Equipment Follow  
manufacturer’s recommended procedures for  
calibration and equipment check out.  
B. Prepare Heating Unit for Testing Drill two  
1/4 inch holes in the flue between the heating  
plant and the barometric draft regulator. If  
space permits, the holes should be located in a  
straight section of the flue, at least two flue  
diameters from the elbow in the flue pipe and at  
least one diameter from the draft regulator. The  
purpose of the two holes in the flue pipe is to  
speed up testing and reduce instrument  
handling.  
The proper installation and adjustment of any oil burner  
requires technical knowledge and the use of combustion  
test instruments. The following procedure must be  
followed to correctly adjust the burner to match the  
specific characteristics of the installation.  
C. Clean and Seal Heating Plant Make sure the  
burner blast tube, fan housing, and blower  
wheel are clear of dirt and lint. Seal any air  
leaks into the combustion chamber.  
IMPORTANT  
D. Nozzle Inspection Annual replacement of  
nozzle is recommended. The nozzle size  
should match the design load . DO NOT  
Always use combustion test instruments when  
making burner adjustments and draft gauge  
when setting the barometric damper. It is  
virtually impossible to make accurate and  
reliable adjustments using the eyeball”  
method.  
OVERSIZE. (Determination of oversizing can  
be determined prior to your adjustment. If the  
firing rate should be reduced refer to Table 4.)  
Short cycles and low percent :on: time result in  
higher overall pollutant emissions and lower  
thermal efficiency. An in-line oil filter will  
reduce service problems due to nozzle clogging.  
Check all oil lines and connections for leaks.  
Connect pressure gauge by removing bleed fitting and  
screwing in pressure gauge. See Figure 9.  
Manual 2100-422  
Page  
14  
K. Adjust Air Setting Examine the smoke - CO2  
plot and, keeping in mind the curve of  
Figure 6, note the location of the “knee” where  
the smoke number begins to rise sharply.  
Noting the air gate position marks, adjust the  
air setting to a CO2 level 1/2 to 1 percent lower  
than the CO2 level at the “knee”. (This  
provides a tolerance against possible shifts in  
the setting over a period of time.) Do not  
increase the air setting any more than necessary  
on the lower portion of the curve below the  
“knee”  
It should be located as close as possible to the  
oil burner. Care should be taken to prevent air  
leakage in the oil suction line. Use continuous  
runs of copper tubing and use minimum  
number of joints and fittings. Always use flare  
fittings.  
E. Adjustment of Electrodes Adjust ignition  
electrodes as specified in Figure 10.  
F. Operate Burner Operate burner, adjust air  
setting for good flame by visual observation,  
and run for at least 10 minutes or until  
operation has stabilized.  
The characteristic curve for some burners may  
not yield a distinct “knee” in the curve. In such  
cases, the setting should be made near the  
minimum smoke, (using judgement).  
G. Check Burner Pressure Bleed air from  
pump and nozzle piping. Check pump pressure  
and adjust to 100 psi, if necessary.  
Lock the air adjustment and repeat draft,  
CO2 and smoke measurements to make sure  
the setting has not shifted.  
2. COMBUSTION ADJUSTMENT STEPS  
H. Set Draft Check the draft reading over the  
fire with a draft gauge through a hole in the  
inspection door. The hole is above the flame  
level. Adjust the barometric draft regulator on  
the flue to give the over fire of -.02” W.C.  
3. COMBUSTION DIAGNOSIS  
L. Check Performance A well-matched and  
well-tuned burner should be capable of  
operation with smoke not greater than No. 2  
and at a CO2 level not less than 10%.  
I. Check Smoke Readings After burner has  
been operating 5 or 10 minutes, make a smoke  
measurement in the flue, following the smoke  
tester instructions. Oily or yellow smoke spots  
on the filter paper are usually a sign of  
If this cannot be reached, check the following:  
1. Air leaks into the combustion chamber or  
heat exchanger can dilute the combustion  
gases and prevent normal CO2 readings.  
Such leaks should be sealed with furnace  
cement or other high-temperature sealant.  
unburned fuel, indicating very poor  
combustion (and likely high emissions of  
carbon monoxide and unburned hydrocarbons.)  
This condition can sometimes be caused by too  
much air, or by other factors. If this condition  
cannot be corrected, major renovation or even  
burner replacement may be necessary.  
To check for dilution by leakage, measure  
the CO2 at as high a point as possible over  
the fire, using a stainless steel tube  
inserted through the fire door sample hole  
(as described earlier for overfire draft  
measurements), and compare this with the  
CO2 measured in the flue. A difference of  
more than 1 percent CO2 between the flue  
and overfire reading usually indicates air  
entry through leaks that have not been  
properlysealed.  
J. Develop Smoke - CO2 Curve Record  
measurements of smoke and CO2 from the  
flue. Then establish the smoke - CO2 curve by  
taking readings over a range of air settings, as  
shown in Figure 8.  
To do this, start with the air gate set at nearly  
full open and then take smoke and CO2  
readings at progressively lower air settings, as  
necessary to visualize the general shape of the  
curve. (The CO2 readings will increase as the  
air setting is decreased, unless combustion is  
incomplete.) Do not set the air gate to give a  
smoke reading above No. 4 or No. 5. Plot the  
points on graph paper, as in Figure 8. Usually  
3 or 4 readings are enough to establish the  
curve.  
Seal between the probe and inspection door  
sample hole during test. The inspection  
door hole should be sealed when not being  
used to avoid leakage of air through it.  
(See Step H.)  
2. If the CO2 level of 10% cannot be reached  
without exceeding No. 2 smoke, poor  
mixing of air and fuel is likely.  
In adjusting each air setting, it is helpful to  
note the various positions of air gate at which  
measurements are made so that the final setting  
can be located quickly.  
It may be necessary to replace the  
combustion head or try different settings.  
Manual 2100-422  
Page  
15  
4. FINAL CHECKS  
SHORT FORM ADJUSTMENT  
PROCEDURE  
M. Measure Stack Temperature Operating the  
unit at an excessive firing rate will generate  
more heat than the heat exchanger can utilize  
and result in unnecessary heat loss up the  
chimney. Other causes of excessive heat loss  
are badlysooted heat exchanger surfaces and  
excessive draft. The temperature of the flue gas  
provides an indication of these heat losses.  
Some burner service organizations may wish to  
perform a shorter procedure for the adjustment of oil  
burners. The following is an example of such a short  
form prepared by the National Association of Oil Heat  
ServiceManagers.  
1. SERVICE AND CLEAN BURNER  
Follow company procedure to complete the  
cleaning and servicing. Operate burner for ten  
minutes while tools are gathered and are cleaned.  
Measure flue temperature by subtracting the  
room air temperature from the thermometer  
reading. Excessive stack loss is indicated of the  
net stack temperature during steady operation  
exceeds 600° F.  
2, CHECK DRAFT  
Set draft regulator, if necessary. Regulator should  
be adjusted to achieve a -.02” W.C. over fire  
condition. The more restricted and lengthy the  
flue, the higher the draft necessary to obtain the  
accepted over fire conditions.  
N. Check Ignition Check operation over repeated  
cycles to insure prompt ignition on starting.  
O. Check Pump Cutoff Slow pump cutoff at the  
end of a firing cycle can cause smoke and other  
pollutant emissions. Check for prompt pump  
cutoff by observing flame or by testing smoke at  
shutdown. If poor cutoff is observed, make sure  
air is purged from the pump and nozzle line.  
Air trapped in the pump or nozzle line will  
expand when heated, thus causing oil to drip  
into the combustion chamber after shutdown. If  
poor cutoff persists, repair or replace pump.  
Also make sure the pump solenoid is working.  
If not replace.  
3. SMOKE TEST  
Follow the instructions of the manufacturer of the  
smoke tester and take a smoke sample. Adjust the  
air to obtain a preliminary reading of about No. 3  
spot. Then readjust the air to obtain the lowest  
possible reading, but do not open the air  
adjustment more than absolutely necessary to  
obtain a trace or No. 0 spot.  
4. CO2 TEST  
Check CO2 levels. This level should be between  
10% and 12%.  
Manual 2100-422  
Page  
16  
FIGURE 8  
TYPICAL SMOKE – CO2 CHART WITH ADJUSTMENT RANGE  
High  
Air Settings  
Low  
8
6
4
2
0
CO2 Curve  
from plotted  
points  
Plotted point  
Normal  
adjustment  
range  
Tolerance  
to "knee"  
"Best" air  
setting  
Plotted point  
Plotted point  
"Knee"  
6
8
12  
Percent CO in Flue Gas  
10  
14  
2
Technician's  
plotting area  
8
6
4
2
0
12  
Percent CO in Flue Gas  
6
8
10  
14  
MIS-1827  
2
Manual 2100-422  
Page 17  
FIGURE 9  
PRESSURE GAUGE CONNECTION TO BLEED PORT  
Remove Bleed  
Port to attach  
pressure guage.  
Pressure Gauge  
MIS-1660  
Manual 2100-422  
Page 18  
TABLE 5  
CORRELATION OF PERCENT OF CO2, O2  
AND RESERVE AIR  
Carbon  
Dioxide  
Reserve Air  
(Approx.)  
Oxygen  
15.4  
15.0  
14.5  
0.0  
0.6  
1.2  
0.0  
3.0  
6.0  
14.0  
13.5  
13.0  
2.0  
2.6  
3.3  
10.0  
15.0  
20.0  
12.5  
12.0  
11.5  
4.0  
4.6  
5.3  
25.0  
30.0  
35.0  
11.0  
10.5  
10.0  
6.0  
6.7  
7.4  
40.0  
45.0  
50.0  
TABLE 6  
NO. 2 FUEL OIL EFFICIENCY CHART  
(NET STACK TEMP. DEGREES F)  
% O2 200  
250  
88.4  
88.2  
87.9  
87.7  
87.3  
87.0  
86.5  
300  
87.3  
87.0  
86.7  
86.4  
86.0  
85.5  
85.0  
350  
86.2  
85.9  
85.5  
400  
450  
500  
82.9  
82.4  
550  
81.7  
81.2  
80.7  
80.0  
79.3  
78.5  
77.5  
600  
650  
700  
78.4  
77.7  
77.0  
76.2  
75.3  
74.2  
73.0  
750  
77.3  
76.6  
75.8  
74.9  
73.9  
72.8  
71.5  
800 % O2  
1
2
3
4
5
6
7
89.6  
89.4  
89.2  
88.9  
88.7  
88.4  
88.0  
85.1 84.0  
80.6  
79.5  
76.2  
75.4  
74.6  
73.6  
72.6  
71.4  
70.0  
14.7  
14.0  
13.2  
12.5  
11.7  
11.0  
10.3  
84.7  
84.3  
83.6  
80.1 78.9  
83.1 81.9  
79.4  
78.7  
77.9  
77.0  
76.0  
78.2  
77.5  
76.6  
75.6  
74.5  
85.1 83.8  
84.6 83.3  
84.1 82.7  
83.5 82.0  
82.6  
82.0  
81.3  
80.5  
81.3  
80.6  
79.9  
79.0  
TABLE 7  
RECOMMENDED START-UP SETTINGS  
Factory Installed  
Field Installed Option  
Air  
Air  
Air  
Air  
Air  
Air  
Furnace  
Model No.  
Burner Style  
Part No.  
1
Band Shutter  
1
Band Shutter  
1
Band Shutter  
Nozzle Setting Setting Nozzle Setting Setting Nozzle Setting Setting  
FH085D36E AFG/9020-026  
FH110D48E AFG/9020-027  
FH110D60E AFG/9020-027  
FLF085D36E AFG/9020-026  
.75  
1.00  
1.00  
.75  
0
2
2
0
6
.65  
.85  
.85  
.65  
0
0
0
0
5
8
8
5
.55  
NA  
NA  
.55  
0
NA  
NA  
0
5
NA  
NA  
5
10  
10  
6
FLF110D48E  
AFG/9020-027  
FLF110D60E  
1.00  
.75  
2
0
2
10  
6
.85  
.65  
.85  
0
0
0
8
5
8
NA  
.55  
NA  
NA  
0
NA  
5
FLR085D36E AFG/9020-031  
FLR110D48E  
AFG/9020-032  
FLR110D60E  
1.00  
10  
NA  
NA  
FLR140D60E AFG/9020-033  
FC085D36E AFG/9020-026  
1.25  
.75  
0
0
8
6
1.10  
.65  
0
0
6
5
NA  
.55  
NA  
0
NA  
5
j
70 degree hollow cone spray pattern, 100 PSIG pump pressure  
Manual 2100-422  
Page 19  
SPACINGOFELECTRODES  
COMBUSTION AIR REQUIREMENTS  
The electrodes should be spaced 5/32” apart. They  
should extend 1/16” beyond the end and 5/16” above  
the center of the nozzle tip as shown in Figure 10.  
This furnace must be installed in a location where a  
sufficient supply of combustion air is available for the  
complete combustion of the fuel oil. Keep in mind that  
a certain amount of excess air is required as well to  
ensure complete combustion of the fuel oil.  
GUNASSEMBLYADJUSTMENT  
The gun assembly can be adjusted in the slot inside of  
fan housing by loosening screw holding slot cover in  
position. Nozzle tip should ordinarily be located 1-1/8”  
behind the front face of the cone.  
When structures are constructed too tightly to supply  
sufficient combustion air, air from outside the structure  
is required to be brought in directly to the furnace. This  
furnace has been conveniently designed to accept a  
combustion air boot which is attached directly to the  
outdoors by means of a 4” pipe. This pipe can be rigid  
or flexible, but it is recommended that a metallic  
material be used. Refer to Figure 11. The air boot used  
for this design is a Field Controls model number  
CAS-2B-90E that can be purchased through your local  
distributor. Follow all installation procedures as  
specified in the instructions packaged with the air boot  
kit.  
REMOVINGGUNASSEMBLY  
Disconnect the oil line at the fan housing and remove  
lock nuts on copper tube fitting. Loosen igniter hold  
down clamps, then swing igniter up and backward. Gun  
assembly can now be removed through this opening.  
FIGURE 10  
ELECTRODE ADJUSTMENTS  
1-1/8  
5/32 GAP  
5/16  
1/16  
NOZZLE  
MIS-160  
Manual 2100-422  
Page 20  
FIGURE 11  
COMBINATION AIR BOOT ASSEMBLY  
COMBUSTION  
AIR BOOT  
ASSEMBLY  
USE THIS  
KNOCKOUT  
FOR OIL LINE  
INTAKE  
AIR  
TUBE  
BURNER  
ASSEMBLY  
REMOVE PUMP TO  
ASSEMBLE INNER  
AIR BOOT  
REMOVE KNOCKOUT  
IN LEFT SIDE  
INSERT OUTER AIR  
BOOT AND SECURE  
FLANGE TO UNIT  
MIS-1833  
MAKE ALL SETTINGS  
ACCORDING TO MANUAL  
FOR AIR BOOT.  
Manual 2100-422  
Page 21  
APPLIANCES LOCATED IN CONFINED  
SPACES  
TABLE 8  
SQUARE FEET REQUIRED TO  
QUALIFY AS UNCONFINED SPACE  
In unconfined spaces in buildings, infiltration may be  
adequate to provide air for combustion, ventilation, and  
dilution of flue gases. However, in buildings of  
unusually tight construction, additional air shall be  
provided using the method described under “All Air  
From Outdoors” in Figure 13.  
Unconfined Space  
Total  
Minimum Area In  
BTUH  
Square Feet  
Input  
8' Ceiling Height  
60,000  
80,000  
375  
500  
An unconfined space (such as an open basement) must  
have a minimum volume of 50 cubic feet per 1,000  
BTUH of total of all appliances in area. Adjoining  
rooms may be counted as one area only if there are not  
doors between the rooms.  
85,000  
105,000  
531  
656  
115,000  
120,000  
719  
750  
Shown in Table 8 are the required minimum areas in  
square feet to qualify as an unconfined space for  
various total BTUH input ratings. The table is based on  
a room(s) with 8 foot ceiling heights.  
140,000  
145,000  
875  
906  
160,000  
200,000  
1000  
1250  
If the unconfined space is within a building having  
insufficient air because of tight construction, the air for  
combustion and ventilation shall be obtained from  
outdoors or from spaces freely communicating with the  
outdoors. Under these conditions a permanent opening  
or openings have a total free area of not less than one  
square inch per 5,000 BTU per hour (28 square inches  
per hour ) of total input rating of all appliances shall be  
provided. For combustion air options see Page 20,  
“Combustion Air Requirements”.  
ALL AIR FROM INSIDE BUILDING  
The confined space shall be provided with two  
permanent openings, one near the top of the enclosure  
and one near the bottom. Each opening shall have a  
free area of not less than one square inch per 1,000  
BTU per hour (140 square inches per gallon per hour)  
of the total input rating of all appliances in the  
enclosure freely communicating with interior areas  
having in turn adequate infiltration from the outside.  
(See Figure 12.) Also see Table 9 on the following  
page for specific ventilation opening requirements for  
the furnace only.  
FIGURE 12  
APPLIANCES LOCATED  
IN CONFINED SPACES  
ALL AIR FROM INSIDE THE BUILDING  
The flow of combustion and ventilating air must not  
be obstructed from reaching the furnace.  
NOTE: Each opening shall have a free area of  
not less than one square inch per 1,000  
BTU per hour (140 square inches per  
gallon per hour) of the total input  
rating of all appliances in the  
enclosure.  
MIS-1336  
Manual 2100-422  
Page  
22  
ALLVENTILATIONAIRFROMOUTDOORS  
TABLE 9  
MINIMUM VENTILATION OPENINGS  
A. The confined space shall be provided with two  
permanent openings, one in or near the top of the  
enclosure and one in or near the bottom. The  
openings shall communicate directly, or by means  
of ducts with outdoors or to such spaces (crawl or  
attic) that freely communicate with outdoors. (See  
Figures 13, 14, & 15.)  
Recommended  
Opening  
(2 Required)  
Min. Ventilation  
Opening  
Model  
Square Inch  
Size  
Sq. In.  
FH085D36E  
FH110D48E  
FH110D60E  
FLF085D36E  
FLR085D36E  
240  
280  
280  
290  
290  
8 x 16  
9 x 18  
9 x 18  
8 x 19  
8 x 19  
128  
162  
162  
152  
152  
B. When directly communicating with outdoors or by  
means of vertical ducts, each opening shall have a  
free area of not less than one square inch per 4,000  
BTU per hour (35 square inches per gallon per  
hour) of total input rating of all appliances in the  
enclosures. If horizontal ducts are used, each  
opening shall have a free area of not less than one  
square inch per 2,000 BTU per hour (70 square  
inches per gallon per hour) of total input of all  
appliances in the enclosure.  
FLF110D48E  
FLF110D60E  
340  
340  
9 x 19  
9 x 19  
171  
171  
FLR110D48E  
FLR110D60E  
FLR140D60E  
FC085D36E  
360  
240  
9.5 x 19  
8 x 16  
180  
128  
FIGURE 13  
APPLIANCES LOCATED IN CONFINED SPACES  
ALL AIR FROM OUTDOORS  
NOTE: Each air duct opening shall have a  
free area of not less than one square  
inch per 2,000 BTU per hour (70  
square inches per gallon per hour) of  
the total input rating of all appliances  
in the enclosure.  
MIS-1337  
Manual 2100-422  
Page  
23  
FIGURE 14  
APPLIANCES LOCATED IN CONFINED SPACES  
ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC  
NOTE: The inlet and outlet air openings  
shall each have a free area of not  
less than one square inch per  
4,000 BTU per hour (35 square  
inches per gallon per hour) of the  
total input rating of all  
appliances in the enclosure.  
MIS-1338  
FIGURE 15  
APPLIANCES LOCATED IN CONFINED SPACES  
ALL AIR FROM OUTDOORS  
INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC  
NOTE: The inlet and outlet air openings  
shall each have a free area of not  
less than one square inch per 4,000  
BTU per hour (35 square inches  
per gallon per hour) of the total  
input rating of appliances in the  
enclosure.  
MIS-1339  
Manual 2100-422  
Page 24  
A barometric damper is supplied with the furnace and  
must be installed in the flue pipe observing the  
LOUVERS AND GRILLES  
In calculating free area for ventilation and combustion  
air requirements, consideration shall be given to the  
blocking effect of louvers, grilles, or screens protecting  
openings. Screens used shall not be smaller than 1/4  
inch (6.3 mm) mesh and shall be readily accessible for  
cleaning. If the free area through a design of louver or  
grille is known, it shall be used in calculating the size  
opening required to provide the free area specified. If  
the design and free area is not known, it may be  
assumed that wood louvers will have 30-35 percent free  
area and metal louvers and grilles will have 60-75  
percent free area.  
instructions packaged with the damper control. The  
barometric damper opening must be located in the same  
atmospheric pressure zone as the combustion air inlet to  
the furnace. The furnace must not be vented into the  
same chimney with any solid fuel burning appliance  
such as a wood burner or pellet burner. Masonry  
chimneys must be lined with a listed system or other  
approved material that will resist corrosion, softening or  
cracking from flue gas temperatures up to 1800° F. See  
Standard for Installation of Oil Burning Equipment  
NFPA31 latest edition and Standard for Chimneys  
NFPA211 latest edition for additional information.  
VENTING OPTIONS  
HORIZONTALVENTING  
This furnace is designed to be vented conventionally  
into a vertical chimney or horizontally through a side  
wall with an optional Field Controls side wall power  
ventingsystem.  
This furnace is designed to be horizontally vented  
through a side wall with an optional side wall power  
vent. The recommended side wall venter is the Field  
Controls model number SWG-4HDS for 085 and 110  
models, and SWG-5S for 140 models only. This venter  
can be purchased through your local distributor. Follow  
all installation instructions packaged with the venter  
system.  
Note that the FH, FC and FLF series furnaces have been  
designed to allow for bringing the vent system through  
the cabinet side for increased venting flexibility. To  
take advantage of this feature, simply remove the  
desired knockout from either side or top of unit and  
rotate flue box accordingly by removing four (4) screws  
under cleanout plate as shown in Figure 4. Make sure  
smoke pipe gasket is in place before reinstalling flue  
box screws.  
THERMOSTAT  
These furnaces are designed to be controlled with any  
24V heating or heating/cooling thermostat. The  
heat/cool thermostats must be designed for independent  
heat/cool transformer circuits to assure that the 24V  
transformer built into the oil primary control does not  
conflict with the main furnace 24V transformer. The  
heat anticipator should be set at 0.20A. This is a  
nominal setting. The thermostat circuit should be  
checked to verify setting.  
VERTICALVENTING  
If the unit is to be vertically vented make sure the flue  
pipe from the furnace to the chimney is the same size  
diameter as the flue outlet of the furnace which is 6”.  
The flue pipe must have no reductions in diameter, be  
made of a corrosion-resistant material having an  
upward pitch of 1/4” for every foot of horizontal run,  
and be made of material capable of handling  
temperatures up to 1800° F.  
Manual 2100-422  
Page  
25  
TABLE 10  
TEMPERATURE RISE RANGES, LIMIT CONTROL SETTINGS,  
AND HEATING BLOWER SPEEDS  
Maximum  
1
Nozzle  
Outlet Air  
Temp.  
Heating Blower  
Speed  
Model  
Rise Ranges  
.55  
.65  
.75  
70 - 100  
70 - 100  
60 - 90  
200  
200  
200  
Low  
Low  
Med  
FH085D36E  
.85  
1.00  
70 - 100  
60 - 90  
200  
200  
Low  
Med Low  
FH110D48E  
FH110D60E  
.85  
1.00  
60 - 90  
60 - 90  
200  
200  
Low  
Med Low  
.55  
.65  
.75  
60 - 90  
60 - 90  
60 - 90  
200  
200  
200  
Low  
Low  
Med  
FLF085D36E  
.85  
1.00  
60 - 90  
60 - 90  
200  
200  
Med Low  
Med High  
FLF110D48E  
FLF110D60E  
.85  
1.00  
60 - 90  
60 - 90  
200  
200  
Med Low  
Med High  
.55  
.65  
.75  
60 - 90  
60 - 90  
60 - 90  
200  
200  
200  
Low  
Low  
Med  
FLR085D36E  
.85  
1.00  
60 - 90  
60 - 90  
200  
200  
Med Low  
Med High  
FLR110D48E  
FLR110D60E  
FLR140D60E  
.85  
1.00  
60 - 90  
60 - 90  
200  
200  
Med Low  
Med High  
1.10  
1.25  
60 - 90  
60 - 90  
200  
200  
Med Low  
Med High  
.55  
.65  
.75  
70 - 100  
70 - 100  
60 - 90  
200  
200  
200  
Low  
Low  
Med  
FC085D36E  
j
70 degree hollow cone spray pattern, 100 PSIG pump pressure  
Manual 2100-422  
Page 26  
AIR FILTERS  
Only Lo-Boy models are shipped with air filters. Filter  
kits are available from your local distributor for Upflow  
and Counterflow models. Knockouts are provided in  
the sides of the FH series models to facilitate the  
cutting of the return openings.  
TABLE 11  
FILTER SIZES FOR OIL FURNACES  
Model  
Size  
FH085D36E  
Hi-Boy  
(1)  
(1)  
(1)  
16 x 25 x 1  
The upflow filter kit part numbers are FR23 for a  
16x25x1 filter size and FR24 for a 20x25x1 filter size.  
These filter kits come complete with the filter and all  
necessary brackets for installing on the furnace. Each  
comes with a washable aluminum mesh filter. When  
installing a five ton AC unit on the furnace, one FR24  
or Two FR23 must be used due to the high airflow  
requirements. It is important to note that a minimum of  
one inch spacing is required between the filter and the  
unit side. Do not exceed 400 fpm for fiberglass  
(disposable) type filters and 575 fpm for washable type  
filters. See Figure 16.  
FH110D48E  
Hi-Boy  
16 x 25 x 1  
20 x 25 x 1  
FH110D60E  
Hi-Boy  
FLF085D36E  
FLR085D36E (1)  
Lo-Boys  
16 x 20 x 1  
20 x 20 x 1  
FLF110D48E  
FLR110D48E  
FLF110D60E (1)  
FLR110D60E  
Lo-Boys  
The counterflow filter kit part number FR25 comes  
with two washable filters. If not installing the FR25 kit  
remember not to exceed 400 fpm for fiberglass  
(disposable) type filters and 575 for washable type  
filters. See Figure 17.  
FLR140D60E  
(1)  
20 x 25 x 1  
16 x 20 x 1  
Lo-Boy  
FC085D36E  
(2)  
Counterflow  
See Table 11 for filter sizes and quantities.  
FIGURE 17  
FIGURE 16  
TYPICAL INSTALLATION OF FR25  
FILTER KIT  
TYPICAL INSTALLATION OF FR26 AND  
FR27 FILTER RACKS  
Optional  
Filter  
Box  
"FC"  
Unit  
19 1/4"  
16"  
70 5/16"  
Filter  
Frame  
(2) screws  
Filter  
Filter  
Door  
MIS-1839 A  
MIS-1841  
Manual 2100-422  
Page 27  
LO-BOY MODELS – FILTER LOCATIONS  
Lo-boy models have the filter installed in the return air cabinet section of the furnace. It is accessible from the rear of  
the furnace by removing the blower/filter access door. The electrical switch should be turned “off” prior to removing  
the access door. Refer to Figure 18 below.  
FIGURE 18  
FILTER INSTALLATION – LO-BOY MODELS  
UNIT  
FILTER SIZE  
FLF/FLR085 16 x 20 x1  
FLF/FLR110 20 x 20 x1  
FLR140  
20 x 25 x 1  
STEP 3:  
SLIDE FILTER OUT  
TOWARDS BLOWER  
DOOR  
STEP 2:  
STEP 1:  
REMOVE BLOWER DOOR  
BY PULLING OUT ON  
SWELL LATCHES AND  
TILTING OUTWARDS  
UNFASTEN SWELL  
LATCHES BY PULLING  
HANDLES OUTWARD  
MIS-1835  
Manual 2100-422  
Page 28  
MAINTENANCE  
B. Ignition Failure – Test by closing oil supply  
while burner is off. Run through starting  
procedure. The primary control will attempt  
three trials for ignition. After three attempts,  
the control will lockout.  
LUBRICATION  
No lubrication is required for either the burner or the  
blower motor. Both are permanently lubricated.  
INSPECT AIR FILTER  
C. Power Failure – Turn off power supply  
while burner is on. When burner goes out,  
restore power and burner will restart.  
Replace filters before each heating season begins. It is  
recommended that filters also be replaced at least twice  
during the heating season.  
D. If operation is not as described, check wiring  
and installation first. If trouble appears to be  
in the control circuit, replace the flame  
detector. If trouble still persists, refer to  
“Common Causes of Trouble” section on  
page 28.  
Be sure the new filters are set securely in the filter rack  
so there can be minimal leakage around them.  
FINAL INSPECTION AND TEST  
Final inspection and test of an installation shall be  
made to determine that the work has been done in full  
accordance with regulations and according to the  
highest standards for safety, performance and  
appearance. Such an inspection and test should  
indicate the following as a minimum:  
SERVICE HINTS  
Preventive maintenance is the best way to avoid  
unnecessary expense, inconvenience, and retain  
operating efficiency of your furnace. It is advisable to  
have your heating system and burner inspected at  
periodic intervals by a qualified serviceman. If trouble  
develops, follow these simple checks before calling the  
serviceman.  
1. Determine that all parts of the oil storage and  
circulating system, including tank, piping and  
burner, are free from oil leaks. Be sure that no oil  
discharges from the nozzle when burner is not  
operating.  
1. Make sure there is oil in tank and valve is open.  
2. Make sure thermostat is set above room  
temperature.  
2. Be sure that the suction line and pump have been  
entirely vented of air so that the burner has  
instantaneous oil shutoff at the nozzle and so that  
the pump operates without an air noise.  
3. Make sure electrical supply to furnace is on and  
fuses are not blown or circuit breakers tripped.  
4. Reset safety switch of burner primary control.  
3. Check the flame adjustment to determine that the  
flame is clear, quiet, free of odor and oil nozzle is  
of proper size for the furnace.  
4. Test operation of burner by operating the  
thermostat. First, set the thermostat above room  
temperature. Burner should start. Second, set  
thermostat below room temperature. Burner will  
stop.  
CAUTION  
Reset three (3) times only. More than three  
resets can cause excessive oil to be pumped  
into combustion chamber which could result in  
explosion upon ignition.  
5. Check operation of burner primary control in  
accordance with manufacturer’s instructions  
included with the control. Following is the method  
we recommend in checking the safety switch in  
this primary control.  
5. Press thermal protector button of burner motor.  
6. Make sure air filters are in place and are clean.  
7. Make sure all air openings in furnace, all  
ventilation and combustion air openings, all return  
air grilles, and all warm air registers are  
unobstructed and open.  
A. Flame Failure – Simulate by shutting off oil  
supply manual valve while burner is on.  
Within 9 seconds the control will shut the  
burner down and flash a diagnostic code of  
1/2 second on / 1/2 second off. Ignition and  
motor stop and oil valve closes  
Manual 2100-422  
Page  
29  
COMBINATION COMBUSTION  
CHAMBER/BURNER MOUNTING  
SYSTEM  
WARNING  
The furnace has been designed with a combustion  
chamber mounting system that enables service  
personnel to remove the combustion chamber, its  
mounting system, and burner assembly as one unit for  
inspection and/or service on the bench. It has also been  
designed to remove the burner assembly independently  
from the mounting system to perform basic annual  
service and inspection. The mounting system is  
completely adjustable so exact alignment between the  
burner tube and combustion chamber may be assured  
prior to installation into the furnace. See Figure 19  
and 20.  
The procedures described in Figures 19 and  
20 should be conducted only by a qualified  
service technician.  
Improper servicing could cause electric shock  
hazard, fires or explosion resulting in damage,  
injury or death.  
FIGURE 19  
REMOVAL OF BURNER ONLY  
DANGER  
*ELECTRICAL SHOCK HAZARD  
*DISCONNECT POWER BEFORE  
SERVICING.  
!
STEP 2:  
LOOSEN (3) BOLTS  
ENOUGH TO ROTATE  
BURNER ASSEMBLY.  
STEP 3:  
ROTATE BURNER  
COUNTER-CLOCKWISE  
STEP 4:  
STEP 1:  
PULL BURNER STRAIGHT  
DISCONNECT "T-T" WIRES,  
POWER CONNECTIONS, AIR  
BOOT (OPTIONAL) AND OIL  
LINES TO BURNER.  
OUT TO PREVENT DAMAGE  
TO CHAMBER DURING  
REMOVAL.  
MIS-1834  
Manual 2100-422  
Page 30  
TO REMOVE THE ENTIRE COMBUSTION  
CHAMBER MOUNTING SYSTEM  
TO REMOVE BURNER ONLY  
Disconnect fuel line, power cord and wires from T, T  
on primary control. Loosen (3) 1/4 inch bolts securing  
burner mounting flange. Twist burner counterclockwise  
and pull straight back away from the furnace. (See  
Figure 19.)  
Disconnect fuel line, power cord and wires from T, T  
on primary control. Remove (6) 5/16 inch bolts from  
around front plate. Next remove (2) 5/16 inch nuts  
from upper right and left hand corners of the front plate.  
Pull entire assembly straight back away from furnace.  
BE CAREFUL NOT TO TIP ASSEMBLY UP OR  
DOWN AS IT MAY DAMAGE THE COMBUSTION  
CHAMBER. (See Figure 20.)  
FIGURE 20  
REMOVAL OF ENTIRE COMBUSTION CHAMBER MOUNTING SYSTEM  
DANGER  
!
*ELECTRICAL SHOCK HAZARD  
*DISCONNECT POWER BEFORE  
SERVICING.  
STEP 3:  
REMOVE (2) NUTS  
IN THE TOP LEFT  
AND RIGHT CORNERS  
OF BURNER PLATE.  
CHAMBER  
BURNER  
PLATE  
STEP 2:  
REMOVE (6) BOLTS  
AROUND PERIMETER  
OF BURNER PLATE  
STEP 4:  
PULL BURNER ASSEMBLY  
STRAIGHT OUT TO PREVENT  
DAMAGE TO CHAMBER  
DURING REMOVAL.  
STEP 1:  
DISCONNECT "T-T" WIRES,  
POWER CONNECTIONS, AIR  
BOOT (OPTIONAL) AND OIL  
LINES TO BURNER.  
MIS-1837  
Manual 2100-422  
Page 31  
PUMPSQUEALSORCHATTERS  
COMMON CAUSES OF TROUBLE  
This may be caused by air in pipes. Check all joints in  
the oil supply pipe for leaks. Check strainer in pump; if  
dirty, clean.  
CAUTION  
To avoid accidents, always open main switch  
(OFF position) when servicing the burner.  
INSUFFICIENTHEAT  
Check limit control setting. It may be that flame is not  
allowed to stay on long enough to generate sufficient  
heat in furnace to heat the house properly. If the proper  
size furnace has been selected according to house  
requirements and satisfactory heat is not obtained,  
recheck the heating plant for size and capacity in  
relation to house. Check for clogged filters.  
BURNER WILL NOT PRODUCE FLAME  
Check oil level gauge to see that there is sufficient oil in  
tank or tanks. Check the burner mounted relay control.  
Do not adjust this control.  
Check position of electrodes – incorrect position will  
cause slow or delayed ignition. Clean electrodes and  
nozzle. Check and clean strainer in pump. If oil line  
filter is used, check filter condition.  
Check and make sure the heat anticipator on the  
thermostat is set correctly.  
CARE OF FINISH  
If burner runs but there is no flame the fuel pump may  
be air bound. Follow instructions for bleeding fuel  
pump.  
This furnace cabinet is made with a very durable and  
corrosion resistant finish. With normal cleaning it will  
last for many years.  
Check and make sure the solenoid valve on the oil  
pump is being energized and opening.  
BURNER STARTS OR STOPS TOO OFTEN  
WARNING  
Check heat anticipator setting on thermostat.  
Under no circumstance should a soot  
deterioration device be used in the  
combustion chamber. These products known  
as soot bustersor soot sticksare  
comprised of chemicals that burn at very high  
temperatures which may exceed the  
temperature rating of the combustion chamber  
material.  
NOZZLEPRODUCESASTRINGYFLAME  
Worn tangential grooves in nozzle. Replace nozzle.  
BASEMENTTANKHUM  
Occasionally with a two-pipe installation there may be  
a low return line hum. Eliminate hum by installing a  
special anti-hum valve in the return line near pump.  
Use of these products are detrimental to the  
life expectancy of the combustion chamber  
and will destroy the chamber. Refer to the  
Cleaning of Furnacesection for proper  
cleaning methods.  
HEAVYFIREORPULSATINGFLAME.  
These may occur after burner starts. It may be caused  
by a slight oil leak in the fuel pump and cannot be  
corrected except by replacing the pump. This happens  
only when the burner is started.  
CLEANING OF THE HEAT EXCHANGER  
All of these units have four clean out plugs for easy  
cleaning of the heat exchanger. They are accessible  
from the front and back of these units by removing the  
clean out access cover in the burner compartment and at  
the back of unit. The furnace should be checked  
annually by a qualified service technician.  
CHATTERING SOUND OR HIGH PITCH NOISE  
This noise from motor can usually be traced to where a  
conduit or BX cable is fixed rigidly or attached to some  
part of the building. Relieving this strain may eliminate  
noise.  
Manual 2100-422  
Page  
32  
BLOWER SYSTEM RESISTANCE CHARTS  
CHART 1  
CHART 4  
FH085D36E DATA  
FLF/FLR085D36E DATA  
Blower Speed  
Low  
Blower Static  
Blower Speed  
Blower Static  
.07  
.15  
.20  
.13  
.24  
.30  
.19  
.33  
.40  
.25  
.41  
.50  
Low  
Medium  
High  
.10  
.16  
.20  
.15  
.24  
.30  
.23  
.34  
.40  
.30  
.43  
.50  
Medium  
High  
CHART 5  
FLF/FLR110D48E DATA  
CHART 2  
FH110D48E DATA  
Blower Speed  
Low  
Blower Static  
Blower Speed  
Blower Static  
Low  
.03  
.09  
.16  
.20  
.08  
.16  
.25  
.30  
.13  
.23  
.34  
.40  
.18  
.32  
.44  
.50  
.05  
.09  
.15  
.20  
.09  
.16  
.24  
.30  
.15  
.23  
.34  
.40  
.20  
.31  
.42  
.50  
Medium Low  
Medium High  
High  
Medium Low  
Medium High  
High  
CHART 3  
FH110D60E DATA  
CHART 6  
FLF/FLR110D60E DATA  
Blower Speed  
Low  
Blower Static  
Blower Speed  
Blower Static  
.06  
.10  
.14  
.20  
.12  
.17  
.21  
.30  
.17  
.23  
.31  
.40  
.21  
.30  
.38  
.50  
Low  
.08  
.10  
.13  
.20  
.12  
.16  
.21  
.30  
.17  
.22  
.29  
.40  
.21  
.28  
.36  
.50  
Medium Low  
Medium High  
High  
Medium Low  
Medium High  
High  
Manual 2100-422  
Page 33  
CHART 8  
CHART 7  
FC085D36E DATA  
FLR140D60E DATA  
Blower Speed  
Blower Static  
Blower Speed  
Blower Static  
Low  
Low  
Medium  
High  
.05  
.08  
.11  
.20  
.14  
.17  
.20  
.30  
.17  
.22  
.27  
.40  
.24  
.30  
.35  
.50  
.08  
.16  
.20  
.14  
.24  
.30  
.20  
.36  
.40  
.26  
.42  
.50  
Medium Low  
Medium High  
High  
Manual 2100-422  
Page  
34  
FH SERIES  
WIRING DIAGRAM  
UNIT  
NOTES  
PURPLE  
PURPLE  
PRIMARY  
IF PRIMARY LIMIT WIRES  
ARE TO BE REPLACED,  
USE WIRE WITH INSUL.  
TEMP. RATING OF 200°C.  
LIMIT  
BACKUP  
LIMIT  
1
CONTROL  
BURNER ASS'Y  
HEATING SPEED  
CONNECTION POINT.  
2
3
L1  
L2  
T T  
COOLING SPEED  
CONNECTION POINT.  
VALVE  
OIL VALVE  
ONLY ONE HEATING  
AND COOLING SPEED  
CAN BE CONNECTED.  
ALL OTHER TAPS  
BURNER  
MOTOR  
BURNER  
MOTOR  
4
5
CONNECT TO "SPARE"  
TERMINALS.  
IGNITOR IGNITOR  
CAD CELL  
DASHED LINES  
REPRESENT FIELD WIRING.  
CAD CELL  
DANGER  
1
!
*ELECTRICAL SHOCK HAZARD  
*DISCONNECT POWER BEFORE  
SERVICING.  
BLACK  
WHITE  
GREEN  
HOT  
NEUTRAL  
GROUND  
PLUG  
#1  
PLUG #2  
1 2 3 4 5 6 7  
8
9
1 2  
WARNING  
!
IF ANY OF THE ORIGINAL WIRE AS  
SUPPLIED WITH THIS APPLIANCE  
MUST BE REPLACED, IT MUST BE  
REPLACED WITH WIRING MATERIAL  
HAVING A TEMP. RATING OF AT  
LEAST 105°C EXCEPT PRIMARY  
LIMIT WIRES. SEE NOTE "1".  
BLACK  
BLACK  
GREEN  
DOOR  
SWITCH  
WHITE  
5
GREEN  
C
Rc  
Y
G
W Rh  
Y
BLUE  
R
W
G
Y
C
COND.  
150  
180  
210  
240  
THERMOSTAT  
UNIT  
24V  
BLOWER CONTROL  
3
T
T
T87F/Q539A1220  
OR EQUIVELANT  
24V.  
CONN.  
TRANSFORMER  
120V COM  
OPTIONAL AIR COND. SETTINGS  
NOM.  
L1  
4
COOLING BLOWER CFM @  
UNIT  
A/C  
TONS  
2
2 1/2  
3
2 1/2  
3
3 1/2  
4
SPEED (COLOR)  
.50 WC  
LOW (RED)  
MED (BLUE)  
730  
900  
FH085D36E  
HIGH (BLACK)  
LOW (RED)  
MED-LOW (ORANGE)  
MED-HIGH (BLUE)  
HIGH (BLACK)  
1160  
1020  
1280  
1495  
1640  
1300  
1460  
1660  
1970  
BLACK  
WHITE  
2
WHITE  
FH110D48E  
FH110D60E  
SEE CHART FOR  
HEATING AND COOLING  
WIRE COLORS  
WHITE  
3
LOW (RED)  
PLUG #3  
3 1/2  
4
5
MED-LOW (ORANGE)  
MID-HIGH (BLUE)  
HIGH (BLACK)  
1 2 3 4 5  
BLOWER  
CAPACITOR  
FACTORY SETTINGS  
INPUT  
RATE  
GPH  
0.55  
0.65  
0.75  
0.85  
1
TEMP.  
RISE  
HEATING BLOWER COOLING BLOWER  
SPEED (COLOR)  
LOW  
VOLTAGE  
UNIT  
SPEED (COLOR)  
HIGH (BLACK)  
RANGE  
70°-100°  
70°-100°  
60°-90°  
70°-100°  
60°-90°  
60°-90°  
60°-90°  
LOW (RED)  
LOW (RED)  
MED (BLUE)  
FH085D36E  
HIGH  
VOLTAGE  
LOW (RED)  
MED-LOW (ORANGE)  
LOW (RED)  
FH110D48E  
FH110D60E  
0.85  
1
MED-LOW (ORANGE)  
FIELD  
WIRING  
BLOWER CAPACITOR RATING  
UNIT MOTOR CAPACITOR  
FH085D36E  
FH110D48E  
FH110D60E  
1/3  
1/2  
3/4  
5/370  
7.5/370  
15/370  
4047-118 B  
BLOWER ASSEMBLY  
Manual 2100-422  
Page  
35  
FLF/R SERIES  
WIRING DIAGRAM  
FACTORY SETTINGS  
PRIMARY LIMIT  
BACKUP LIMIT  
HTG. BLWR SPD. TEMP. COLING BLWR.  
UNIT  
GPH INPUT  
1
(COLOR)  
LOW (RED)  
LOW (RED)  
MED (BLUE)  
RISE  
SPEED  
0.55  
0.65  
0.75  
0.85  
1
60°-90° HIGH (BLACK)  
60°-90° HIGH (BLACK)  
60°-90° HIGH (BLACK)  
FLF/R085D36E  
BLACK  
BLACK  
BLACK  
BLACK  
FLF/R110D48E  
FLF/R110D60E  
MED. HIGH (BLUE)60°-90° HIGH (BLACK)  
MED. HIGH (BLUE)60°-90° HIGH (BLACK)  
MED. HIGH (BLUE)60°-90° HIGH (BLACK)  
MED. HIGH (BLUE)60°-90° HIGH (BLACK)  
1.1  
1.25  
FLR140D60E  
PURPLE  
PURPLE  
5
BURNER ASS'Y  
1
2
L1  
L2  
T T  
THERMOSTAT  
VALVE  
OIL VALVE  
C
Y
Rc  
Y
G
W Rh  
T87F/Q539A1220  
OR EQUIVELANT  
BURNER  
MOTOR  
BURNER  
MOTOR  
R
W
G
Y
C
COND.  
150  
COOLING BLOWER SPEEDS  
180  
210  
240  
UNIT  
IGNITOR  
IGNITOR  
NOM. A/C  
CFM@  
.50" WC  
775  
BLOWER CONTROL  
3
24V.  
T
T
UNIT  
SPEED (COLOR)  
(TONS)  
CONN.  
2
2.5  
3
2.5  
3
3.5  
4
3
LOW (RED)  
MED (BLUE)  
HIGH (BLACK)  
CAD CELL  
CAD CELL  
FLF/R085D36E  
FLF/R110D48E  
1070  
1275  
1065  
1235  
1415  
1525  
1190  
1400  
1640  
2250  
L1  
4
LOW (RED)  
MED LOW (ORANGE)  
MED HIGH (BLUE)  
HIGH (BLACK)  
2
LOW (RED)  
FLF/R110D60E  
FLR140D60E  
3.5  
4
5
MED LOW (ORANGE)  
MED HIGH (BLUE)  
HIGH (BLACK)  
BLACK  
BLACK  
NOTES  
IF PRIMARY LIMIT WIRES  
ARE TO BE REPLACED,  
USE WIRE WITH INSUL.  
TEMP. RATING OF 200°C.  
BLOWER CAPACITOR  
BLOWER CAPACITOR RATING  
1
BROWN  
UNIT  
MOTOR CAPACITOR  
FLF/R085D36E  
FLF/R110D48E  
FLF/R110D60E  
FLR140D60E  
1/3  
1/2  
5/370  
7.5/370  
HEATING SPEED  
2
3
CONNECTION POINT.  
BROWN  
COOLING SPEED  
CONNECTION POINT.  
3/4  
15/370  
COM 120V  
1
2
3
4
ONLY ONE HEATING  
AND COOLING SPEED  
CAN BE CONNECTED.  
ALL OTHER TAPS  
CONNECT TO "SPARE"  
TERMINALS.  
BLACK  
TRANSFORMER  
24V  
BLUE  
4
5
DANGER  
!
ORANGE  
WHITE  
GREEN  
BLACK  
NEUTRAL  
GROUND  
HOT  
*ELECTRICAL SHOCK HAZARD  
*DISCONNECT POWER BEFORE  
SERVICING.  
RED  
DASHED LINES  
REPRESENT FIELD WIRING.  
5
SEE CHART FOR  
"HEAT" AND "COOL"  
WIRE COLORS.  
WHITE  
BLOWER ASSEMBLY  
4047-119 C  
CONTROL PANEL  
FC SERIES  
WIRING DIAGRAM  
FACTORY SETTINGS  
PRIMARY LIMIT  
HTG. BLWR SPD. TEMP. COLING BLWR.  
UNIT  
GPH INPUT  
1
(COLOR)  
LOW (RED)  
LOW (RED)  
MED (BLUE)  
RISE  
SPEED  
0.55  
0.65  
0.75  
60°-90° HIGH (BLACK)  
70°-100° HIGH (BLACK)  
60°-90° HIGH (BLACK)  
BLACK  
BLACK  
FC085D36E  
PURPLE  
PURPLE  
5
BURNER ASS'Y  
1
2
L1  
L2  
T T  
THERMOSTAT  
T87F/Q539A1220  
VALVE  
OIL VALVE  
C
Y
Rc  
Y
G
W Rh  
OR EQUIVELANT  
BURNER  
MOTOR  
BURNER  
MOTOR  
R
W
G
Y
C
COND.  
150  
180  
210  
240  
UNIT  
IGNITOR  
IGNITOR  
BLOWER CONTROL  
3
24V.  
T
T
CONN.  
CAD CELL  
CAD CELL  
L1  
BACKUP LIMIT  
COOLING BLOWER SPEEDS  
NOM. A/C  
CFM@  
.50" WC  
775  
1070  
1230  
UNIT  
SPEED (COLOR)  
(TONS)  
4
2
2.5  
3
LOW (RED)  
MED (BLUE)  
HIGH (BLACK)  
2
FC085D36E  
1
DOOR  
SWITCH  
BLACK  
BLACK  
2
3
4
BLACK  
BLACK  
NOTES  
IF PRIMARY LIMIT WIRES  
ARE TO BE REPLACED,  
USE WIRE WITH INSUL.  
TEMP. RATING OF 200°C.  
BLOWER CAPACITOR  
(5/370)  
1
BROWN  
HEATING SPEED  
CONNECTION POINT.  
2
3
DANGER  
*ELECTRICAL SHOCK HAZARD  
*DISCONNECT POWER BEFORE  
SERVICING.  
WHITE  
!
COOLING SPEED  
CONNECTION POINT.  
BROWN  
BLACK  
BLUE  
COM 120V  
1
2
3
4
5
ONLY ONE HEATING  
AND COOLING SPEED  
CAN BE CONNECTED.  
ALL OTHER TAPS  
CONNECT TO "SPARE"  
TERMINALS.  
TRANSFORMER  
24V  
4
5
WHITE  
GREEN  
BLACK  
NEUTRAL  
GROUND  
HOT  
RED  
DASHED LINES  
REPRESENT FIELD WIRING.  
SEE CHART FOR  
"HEAT" AND "COOL"  
WIRE COLORS.  
WHITE  
BLOWER ASSEMBLY (1/3 HP)  
4047-120 B  
CONTROL PANEL  

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