Form CP-F/B-GC (11/17) R8
Obsoletes Form CP-F/B-GC (Version A.2)
Gas Conversion Kits and Instructions
Applies to: Models F, B, FE, and BE with spark pilot
NOTE: Units with standing (match - lit) pilots must be converted to spark pilot before converting gas types.
Model B
All gas conversion must be done by a qualied service person in accordance with
these instructions and in compliance with all codes and requirements. In Canada,
gas conversion shall be carried out in accordance with the requirements of the
Provincial Authorities having jurisdiction and in accordance with the requirements
of the CAN/CGA-B149.1 and .2 installation code.
Model F
WARNING: Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, injury, or death.
Read the installation, operation, and maintenance instructions
thoroughly before installing or servicing this equipment.
FOR YOUR SAFETY
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in
your building.
• Leave the building immediately.
• Immediately call your gas supplier from a phone remote from
the building. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re department.
— Installation and service must be performed by a qualied
installer, service agency, or the gas supplier.
Do not store or use gasoline or other ammable vapors and liquids
in the vicinity of this or any other appliance.
DANGER: The conversion kit is to be selected and installed by a
qualied service person in accordance with these instructions
and in compliance with all codes and requirements of authorities
having jurisdiction. Failure to follow instructions could result
in death, serious injury, and/or property damage. The qualied
agency performing this work assumes responsibility for this
conversion.
Form CP-F/B-GC, P/N 99279 Rev 8, Page 1
HAZARD INTENSITY LEVELS
1. DANGER: Failure to comply will result in severe personal injury or death
and/or property damage.
2. WARNING: Failure to comply could result in severe personal injury or
death and/or property damage.
3. CAUTION: Failure to comply could result in minor personal injury and/or
property damage.
DANGER: The gas burner in this gas-red equipment is
designed and equipped to provide safe and economically
controlled complete combustion. However, if the installation
does not permit the burner to receive the proper supply of
combustion air, complete combustion may not occur. The result
is incomplete combustion which produces carbon monoxide, a
poisonous gas that can cause death. Safe operation of indirect-
red gas burning equipment requires a properly operating vent
system which vents all ue products to the outside atmosphere.
FAILURE TO PROVIDE PROPER VENTING WILL RESULT IN A
HEALTH HAZARD WHICH COULD CAUSE SERIOUS PERSONAL
INJURY OR DEATH.
Description and
Kit Selection
Always comply with the combustion air requirements in the
installation codes and instructions. Combustion air at the burner
should be regulated only by manufacturer-provided equipment.
NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF
COMBUSTION AIR TO ANY HEATER. Indoor units installed in
a conned space must be supplied with air for combustion
as required by Code and in the heater installation manual.
MAINTAIN THE VENT SYSTEM IN STRUCTURALLY SOUND AND
PROPERLY OPERATING CONDITION.
The gas conversion kits in these instructions are for a Model F, FE, B, or BE heater
equipped with a single-stage valve.
In order to determine which conversion kit is compatible to your heater, it is necessary to know the type of valve that is on the heater. From the rating plate, copy the
complete Model No. of the heater. Also, copy the manufacturer's number on the
gas valve.
Form CP-F/B-GC P/N 99279 Rev 8, Page 2
Gas Conversion
Instructions Models F, FE,
B, BE
1. Verify Kit Selection - Check to be certain that the gas conversion kit is the
appropriate kit for the unit being converted.
IMPORTANT: Compare the actual Model No. on the valve to those listed for the kit.
If actual Model No. is different from the ones listed, do not install the kit. Contact
your Reznor Representative to select and verify parts required for gas conversion.
2. Additional Parts May Be Required - If you are converting to propane, and
your heater is a Size 130-400 equipped with optional stainless steel burn-
ers, it is necessary to order and install burner air shutters. (Air shutters may be
used on aluminized burners but are not normally required.) A list of burner air
shutter part numbers can be found on page 8. Air shutters are not included
in the conversion kits and must be ordered separately.
3. Turn off the gas supply at the shutoff valve upstream of the control valve on
the heater and disconnect the electrical power.
4. Install the Regulator Spring Kit or Change the Valve
To install a regulator spring kit, follow the valve manufacturer's installation
instructions that are included with the regulator spring kit. After a new regulator
spring kit is installed, it is necessary to adjust the spring for the correct manifold pressure. This adjustment can only be made after the heater is in operation. Instructions are included in Step No. 12 of the installation instructions.
WARNING: Manufacturer of regulator spring kit and gas valve
must be the same. Spring kits of different manufacturers are not
interchangeable, and each spring kit must be used only in the
valve for which the kit is designated.
WARNING: The
operating valve
is the primary
safety shutoff.
The gas supply line must
be free of dirt
or scale before
connecting the
unit to ensure
positive closure.
FIGURE 1 - Heater
with Bottom Panel
Hinged Down
To change the valve, rst mark the wires before removing them from the existing valve. Consult the valve manufacturer's instruction sheet for installation
details and install the new valve. Field-supplied ttings may be required. If the
heater is equipped with an ECO device, be certain to connect it (applies to
Models F and B with match-lit pilot and all models with spark pilot manufactured prior to approximately 8/99; check the wiring diagram).
Wiring
Terminal
Identication
Valve Manufacturer Common Pilot * Main
Honeywell (M/H)
White Rogers (W/R) or
Robertshaw (R)
Wire Color White or Brown Blue Black
*Pilot terminal is not used on match-lit units.
5. Change the Pilot Orice
Hinge
Pin
a) Remove the two screws located at the
rear of the bottom of the heater that
retain the bottom panel. Allow the bottom panel to hinge down from the front.
Completely remove the bottom panel
by pushing in on one of the springloaded hinge pins.
TR TH-TR TH
PV-MV PV MV
C P M
Bottom
Panel
Form CP-F/B-GC, P/N 99279 Rev 8, Page 3
Gas Conversion
Instructions Models F, FE,
B, BE (cont'd)
FIGURE 2 - Burner
Rack with FactoryInstalled Air
Bafes
b) The bottom of the pilot is now visible. Do the following:
(1) Disconnect the pilot tubing from the pilot burner.
(2) For match-lit (standing) pilot, disconnect the thermocouple from the valve.
(3) For spark pilot, disconnect the ame sensing wire and high tension
(spark) lead from the ignition controller.
c) Heaters manufactured beginning 8/91 (Serial No. Date Code AQH) - While
supporting the burner rack, remove the screws (two or three) that hold the
indexed burner rack support. Remove the support, allowing the burner rack
assembly to swing down. Lift up on the rear and slide the burner assembly up
and out of the manifold support brackets.
Heaters manufactured prior to 8/91 - Loosen the sheetmetal screws (two or
three) located at the front of the burner rack assembly. (These screws retain the
burner rack support.) While supporting the burner rack assembly, slide the burner
rack support and remove it from the screws. Allow the burner rack assembly to
swing down. Lift up on the rear and slide the burner assembly up and out of the
manifold support brackets.
d) Remove the pilot from the burner rack and install the new pilot orice. Re-
install the pilot burner on the burner rack. On units equipped with a pilot shield,
be certain that the pilot shield is in place when replacing the pilot burner.
6. Remove Air Bafe (if applicable)
If you are converting from natural to propane, you may have to remove a fac-
tory-installed air bafe from the burner rack. Look at the burner rack that you
have just removed to see if it is equipped with one of the air bafes illustrated
in FIGURE 2. Not all heaters are equipped with an air bafe. If your burner
rack is factory-equipped with either of these air bafes, remove the air bafe
before converting to propane. Refer to FIGURE 2 showing which screws to
remove.
Air Bafe
Air Bafe
7. Change Burner Orices
With the burner rack removed, the burner orices are visible in the manifold
pipe at the rear of the heater. (See FIGURE 3.) Remove all existing orices
and replace with the orices included in the conversion kit. (NOTE: Kits that
apply to various sizes of heaters include the quantity of burner orices required
for the largest size of heater. When converting the smaller sizes, there will be
extra burner orices which will not be used.)
WARNING: Do
Burner Orices
not attempt to
drill orices.
Use factory
supplied orices
only.
Form CP-F/B-GC P/N 99279 Rev 8, Page 4
FIGURE 3 -
Burner
Orices
Remove screws to remove air bafe
Burner
Assembly
Support
Brackets
Ignition Controller
with Lockout,
P/N 257010
Minimum ame proving
signal strength is 0.2
microamps.
Special Wiring Instructions when using an
automatic vent damper:
Remove the plug from
the ignition controller and
plug in the wiring harness
from the vent damper. The
wiring harness electrically
interlocks the vent damper
to the control. Unplugging
either end results in a system shutdown.
FIGURE 4 - Pilot
Flame Adjustment
8. Install Burner Air Shutters (if required)
Burner air shutters are required on Sizes 130-400 models equipped with
optional stainless steel burners for use with propane gas. Air shutters may be
used on aluminized burners but are not normally required.
Refer to the instructions included with the air shutter assembly for installation
and adjustment.
DANGER: Failure to install and adjust burner air shutters
according to directions could cause property damage, personal
injury and/or death.
9. Re-Assemble the Heater
Reverse the above procedure to re-assemble the heater. Be certain that the
burner rack is properly positioned and tight against the heat exchanger. If your
conversion requires changing the ignition controller, do not re-connect the
ame sensing wire and the high tension lead to the ignition controller.
Do not replace the bottom panel.
10. Change the Ignition Controller (if required) (Included in all natural to
propane conversion kits)
If your conversion requires an ignition controller with 100% lockout, the ignition
controller with new wires and a new wiring diagram are included in the conversion kit.
a) On the rear of the heater, locate the ignition controller. Disconnect the spark wire from
the spike on the controller. Leave all other wires connected to the ignition controller;
follow the wires and disconnect them from their various connections. Remove the ignition controller and attached wires.
b) In the same location, attach the ignition controller mounting bracket to the heater using
the #10x3/8" long screws included in the kit. With the ignition controller positioned so
that the terminals are across the bottom, attach it to the mounting bracket using the
#8x3/8" long screws.
c) Refer to the new wiring diagram label in the kit and connect the wires.
All of the wires are connected to the ignition controller at the factory except to the "TH"
Terminal. Attach the loose black wire in the kit to the "TH" terminal and connect it to the
limit control. (The yellow wire in the kit will not be used.)
d) Select a location near the current wiring diagram on the unit to adhere the wiring label.
Do not put the label on a surface that will be hot when the heater is operating and do
not put it over the existing wiring diagram. Wipe the selected area with a clean dry
cloth. Peel the backing and adhere the new label.
11. Turn on the electric and the gas. Relight, following the instructions on the
heater. Check for gas leaks using a commercial leak detecting uid or a rich
soap and water solution. Leaks are indicated by the presence of bubbles.
Check all connections which were worked on during the conversion including
the pilot connections. If a leak cannot be stopped by tightening, replace the
part.
Observe the pilot ame through the lighting hole. The ame should extend 1/2
to 1 inch past the ame sensing device (See FIGURE 4).
To adjust the pilot ame :
1) Remove the pilot adjustment cover
screw on the valve.
2) Turn the inner adjustment screw
clockwise to decrease or counterclockwise to increase the pilot
ame
3) Replace the cover screw after
adjustment.
Flame Sensor or
Thermocouple
Form CP-F/B-GC, P/N 99279 Rev 8, Page 5
Gas Conversion
Instructions Models F, FE,
B, BE (cont'd)
12. Adjust the manifold pressure. Follow these requirements and instructions
to adjust manifold gas pressure.
1) The correct pressure adjustment depends on the area of the country in
terms of elevation. If you don't know the elevation, check with your local gas
company.
2) Determine the required manifold pressure for that elevation.
Manifold Pressure Settings by Elevation
Elevation Ranges Natural Gas Propane
Feet Meters (inches W.C.)
0- 2000 1-610 3.5 10.0
2001-3000 911-915 2.8 7.7
3001-4000 916-1220 2.5 7.1
4001-5000 1221-1525 2.3 6.4
5001-6000 1526-1830 2.1 5.8
6001-7000 1831-2135 1.9 5.2
7001-8000 2136-2440 1.7 4.6
8001-9000 2441-2745 1.5 4.1
3) With the manual valve positioned to prevent ow to the main burners, connect a manometer to the 1/8" pipe outlet pressure tap in the valve. Use a
water column manometer that is readable to the nearest tenth of an inch.
NOTE: A manometer (uid-lled gauge) is recommended rather than a
spring type gauge due to the difculty of maintaining calibration of a spring
type gauge.
4) Remove the cap from the pressure adjusting screw and adjust the manifold
pressure to the pressure selected from the table above. Cycle the main
burners once or twice to properly seat the adjustment spring in the valve.
5) Measure the manifold pressure. If adjustment is necessary, correct pressure setting by turning the regulator screw IN (clockwise) to increase pressure. Turn regulator screw OUT (counterclockwise) to decrease pressure.
When the pressure is correct, remove the manometer and replace the cap.
Check for leaks at the pressure tap tting.
CAUTION: DO NOT bottom out the gas valve regulator adjusting
screw. This can result in unregulated manifold pressure causing
excess overre and heat exchanger failure.
WARNING: Manifold gas pressure must never exceed 3.5" w.c.
for natural gas or 10" w.c. for propane gas.
6) With the heater operating, determine that the inlet pressure to the heater is
7) If the gas valve has been adjusted for operation above 2000 ft, nd the high
WARNING: Wait at least ve minutes before attempting to relight
heater in the event of pilot outage or improper ignition.
Form CP-F/B-GC P/N 99279 Rev 8, Page 6
between 5 and 14 inches w.c. for natural gas or between 11 and 14 inches
w.c. for propane gas. Take this reading as close as possible to the heater.
(Most heaters are equipped with gas valves that have an inlet pressure
tap.) If the inlet pressure is not within the specied range, the inlet pressure
must be corrected and the manifold pressure re-checked.
altitude manifold pressure label in the kit. Using a permanent marker, ll-in
the pressure setting and adhere the label to the heater in a conspicuous
location close to the gas valve.
13. Check for safe and proper operation by operating the heater for at least one
cycle. Observe main burners for complete ame carryover. Observe cautiously
from beneath the heater after ignition is established. Flame must be present on
the full length of each burner.
If air shutters are used, adjust them according to the instructions supplied with
the air shutters.
Replace the bottom panel.
Safety check the installation and equipment. Check that all safety
devices are functioning properly.
14. Complete the information required on the gas conversion tape and afx the
tape to the heater near the rating plate. Attach the disk to the heater near the
gas valve.
Conversion
Kits - Natural to
Propane
TABLE 1 - Natural
to Propane
Conversion Kits
Natural to Propane Conversion Kit for Heater Equipped with
Conversion
Kit P/N
99249
99250
99251
99252
99253
99255
Single Stage Gas Valve
Models
F, B,
FE, BE
Size
25
50
75
100, 125
130, 165,
200, 250
200, 250
200, 250
300, 400
Valve
Manufacturer
M/H VR8204M1000
M/H VR8104M2505
M/H VR8204M1000
M/H VR8104M2505
M/H VR8204M1000
M/H VR8104M2505
M/H VR8204M1000
M/H VR8104M2505
M/H VR8204M1000
M/H VR8104M2505
M/H VR8440A2159
M/H VR8304M2816
M/H VR8440A2159
M/H VR8304M2816
W/R 36C68-452
W/R 36H32-441
See kit
components listed
in:
TABLE 2,
page 8
TABLE 3,
page 9
TABLE 4,
page 9
TABLE 5,
page 9
TABLE 6,
page 9
TABLE 7,
page 10
Form CP-F/B-GC, P/N 99279 Rev 8, Page 7
Conversion
Kits - Natural
to Propane
(cont'd)
Natural to Propane
Conversion
Requirements
• Propane requires
ignition controller
with 100% lockout
• Propane on Sizes
130-400 requires
burner air shutters
Propane units equipped with spark pilot require an ignition controller with 100%
lockout. When converting Models F, FE, B, and BE equipped with spark pilot without 100% lockout (Safety Pilot Code 66 or 94) from natural to propane, the ignition
controller must be changed. Where it is required, the conversion kit includes
the ignition controller with 100% lockout.
Heater sizes 130-400 that are equipped with optional stainless steel burners
require the addition of burner air shutters when converting from natural to propane
gas.
Air shutters are NOT included in the conversion kit. If air shutters are required
in your installation, order P/N listed in the table below.
Heater Size Air Shutter Assembly P/N
130 98478
165 98479
200 98480
250 98481
300 98482
400 98483
To determine if your heater is equipped
with stainless steel burners, check the
replacement parts tag located on the
inner panel (next to the fan or blower)
on the rear of the heater. If the heater is
equipped with stainless steel burners,
the tag will read "EQUIPPED WITH SS
BURNERS".
Conversion Kit
Components
- Natural to
Propane
TABLES 2 - 7 list the
components included
in each conversion
kit as well as the
heater(s) to which
that kit applies. Kits
that apply to various sizes of heaters
include the quantity
of orices required
for the largest size of
heater. Excess burner
orices may not be
returned for credit.
TABLE 2 - Natural to Propane Conversion Kit, P/N 99249
Applies to Models F/FE/B/BE 25
Equipped with either of the following valve combinations
Manufacturer's
No.
Components:
Qty P/N Description
1 98720 Regulator Spring Kit, M/H 393691
2 95936 Burner Orice, #60 (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655 Yellow Wire Assy (I.C. “TH”)
1 173307 Black Wire Assy (I.C. “TH”)
1 257012 Ignition Controller Mounting Bracket
2 96426 Screws, #10LGM x 3/8" long (for attaching bracket)
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
M/H VR8204M1000
M/H VR8204M1000
The loose yellow wire is not
used in this application.
Form CP-F/B-GC P/N 99279 Rev 8, Page 8
Conversion Kit
Components
- Natural
to Propane
(cont'd)
Applies to Models F/FE/B/BE 50
Equipped with Valve
Manufacturer's No
Components:
Qty P/N Description
1 98720 Regulator Spring Kit, M/H 393691
3 63003 Burner Orice, 1.2MM (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655 Yellow Wire Assy (I.C. “TH”)
1 173307 Black Wire Assy (I.C. “TH”)
1 257012 Ignition Controller Mounting Bracket
2 96426 Screws, #10LGM x 3/8" long (for attaching bracket)
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
Applies to Models F/FE/B/BE 75
Equipped with Valve
Manufacturer's No.
Components:
Qty P/N Description
1 98720 Regulator Spring Kit, M/H 393691
4 64676 Burner Orice, 1.3MM (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655
1 173307
1 257012 Ignition Controller Mounting Bracket
2 96426 Screws, #10LGM x 3/8" long (for attaching bracket)
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
TABLE 3 - Natural to Propane Conversion Kit, P/N 99250
M/H VR8204M1000
M/H VR8104M2505
The loose yellow wire is not used in
this application.
TABLE 4 - Natural to Propane Conversion Kit, P/N 99251
M/H VR8204M1000
M/H VR8104M2505
Yellow Wire Assy
(I.C. “TH”)
Black Wire Assy
(I.C. “TH”)
The loose yellow wire is not used in this
application.
Form CP-F/B-GC, P/N 99279 Rev 8, Page 9
Conversion Kit
Components
- Natural
to Propane
(cont'd)
TABLE 5 - Natural to Propane Conversion Kit, P/N 99252
Applies to Models F/FE/B/BE 100 and 125
Equipped with Valve
Manufacturer's No.
Components:
Qty P/N Description
1 98720 Regulator Spring Kit, M/H 393691
6 11830 Burner Orice, #55 (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655 Yellow Wire Assy (I.C. “TH”)
1 173307 Black Wire Assy (I.C. “TH”)
1 257012 Ignition Controller Mounting Bracket
2 96426 Screws, #10LGM x 3/8" long (for attaching bracket)
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
TABLE 6 - Natural to Propane Conversion Kit, P/N 99253
Applies to Models F/FE/B/BE 130, 165, 200, 250
Equipped with either of the following valve combinations
Manufacturer's No.
Components:
Qty P/N Description
1 98720 Regulator Spring Kit, M/H 393691
1 51749 Regulator Spring Kit, M/H 391937
8 96344 Burner Orice, #1.65MM (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655 Yellow Wire Assy (I.C. “TH”)
1 173307 Black Wire Assy (I.C. “TH”)
1 257012 Ignition Controller Mounting Bracket
2 96426
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
Screws, #10LGM x 3/8" long (for attaching
bracket)
M/H VR8204M1000
M/H VR8104M2505
M/H VR8204M1000
M/H VR8104M2505
M/H VR8440A2159
M/H VR8304M2816
The loose
yellow wire is
not used in this
application.
The loose yellow
wire is not used in
this application.
TABLE 7 - Natural to Propane Conversion Kit, P/N 99255
Applies to Models F/FE/B/BE 300, 400
Equipped with Valve
W/R 36C68-452
Equipped with Valve
Components:
Qty P/N Description
1 82524 Regulator Spring Kit, W/R *92-0659
1 51749 Regulator Spring Kit, M/H 391937
12 96344 Burner Orice, 1.65MM (sea level)
1 98695 Pilot Orice, J/C #9733-410 (black)
1 257475 Ignition Controller Assy including:
1 257010 Ignition Control w/100% Lockout, UTEC 1003-514
1 133108 Black Wire Assy (I.C. “MV”)
1 98215 Brown Wire Assy (I.C. “MV/PV”)
1 98214 Blue Wire Assy (I.C. “PV”)
1 257074 Green Wire Assy (I.C. “GND BURNER”)
1 98215 Brown Wire Assy I.C. “24V GND”)
1 173303 Red Wire Assy (I.C. “24V”)
1 257014 Red Wire Assy (I.C.”SENSE”)
1 122655 Yellow Wire Assy (I.C. “TH”) The loose yellow wire
1 173307 Black Wire Assy (I.C. “TH”)
1 257012 Ignition Controller Mounting Bracket
2 96426 Screws, #10LGM x 3/8" long (for attaching bracket)
4 195638 Screws, #8 x 3/8" long (for attaching controller)
1 37752 Propane Gas Disk
1 64391 Conversion Tape
1 257478 Wiring Diagram Label
M/H VR8440A2159
M/H VR8304M2816
W/R 36 H32-441
is not used in this
application.
Form CP-F/B-GC P/N 99279 Rev 8, Page 10
Conversion Kits
- Propane to
Natural
Conversion Kit
Components
- Propane to
Natural
TABLES 8-16 list the
components included
in each conversion
kit as well as the
heater(s) to which
that kit applies. Kits
that apply to various sizes of heaters
include the quantity
of orices required
for the largest size of
heater. Excess burner
orices may not be
returned for credit.
Table 8 - Propane to Natural Conversion Kit for Heater
Equipped with a Single Stage Gas Valve
Conversion
Kit P/N
99257 25 M/H VR8204M1018
99258 50 M/H VR8204M1018
99259 75 M/H VR8204M1018
99260 100, 125 M/H VR8204M1018
99261 130, 165 M/H VR8204M1018
99263 200 M/H VR8204M1018
99266 250, 300
99267 400
TABLE 9 - Propane to Natural Conversion Kit, P/N 99257
Applies to Models F/FE/B/BE 25
Equipped with any of the following pilot and valve
combinations
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
Models F,
B, FE, BE
Pilot Valve
Serial
No.
Code
1 98721 Spring Regulator Kit, M/H #394588
2 39650 Burner Orice, #51 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Size
Manufacturer's
No.
Valve Manufacturer
W/R 36C68-325
W/R 36H32-442
W/R 36C68-325
W/R 36H32-442
Serial
No.
Code
components
TABLE 9,
TABLE 10,
TABLE 11,
TABLE 12
TABLE 13,
TABLE 14,
TABLE 15,
TABLE 16,
Manufacturer's
V8204M1018
See kit
listed in:
page 11
page 11
page 11
page 11
page 12
page 12
page 12
page 12
No.
M/H
TABLE 11 - Propane to Natural Conversion Kit, P/N 99259
Applies to Models F/FE/B/BE 75
Equipped with any of the following pilot and valve combinations
Pilot Valve
Serial
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 98721 Regulator Spring Kit, M/H #394588
4 38678 Burner Orice, #45 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
TABLE 12 - Propane to Natural Conversion Kit, P/N 99260
Applies to Models F/FE/B/BE 100 and 125
Equipped with any of the following pilot and valve combinations
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 98721 Regulator Spring Kit, M/H 394588
6 11833 Burner Orice, #44 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Manufacturer's
No.
Code
Serial
No.
Code
No.
Pilot Valve
Manufacturer's
No.
Serial
No.
Code
Serial
No.
Code
Manufacturer's No.
M/H VR8204M1018
Manufacturer's No.
M/H VR8204M1018
TABLE 10 - Propane to Natural Conversion Kit, P/N 99258
Applies to Models F/FE/B/BE 50
Equipped with any of the following pilot and valve
combinations
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 98721 Regulator Spring Kit, M/H #394588
3 84853 Burner Orice, #47 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Pilot Valve
Serial
No.
Code
Manufacturer's
No.
Serial
No.
Code
Manufacturer's
No.
M/H
VR8204M1018
Form CP-F/B-GC, P/N 99279 Rev 8, Page 11
Conversion Kit
Components
- Propane to
Natural (cont'd)
TABLE 13 - Propane to Natural Conversion Kit, P/N 99261
Applies to Models F/FE/B/BE 130, 165
Equipped with any of the following pilot and valve
combinations
Pilot Valve
Serial
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 98721 Regulator Spring Kit, M/H #394588
5 11831 Burner Orice, #35 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
No.
Code
Manufacturer's
No.
Serial
No.
Code
Manufacturer's
VR8204M1018
No.
M/H
TABLE 15 - Propane to Natural Conversion Kit, P/N 99266
Applies to Models F/FE/B/BE 250, 300
Equipped with
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 82525 Regulator spring Kit, W/R #92-0656
9 11831 Burner Orice, #35 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Pilot Valve
Serial
No.
Code
Manufacturer's
No.
Serial
No.
Code
Manufacturer's
W/R #36C68-325
No.
TABLE 14 - Propane to Natural Conversion Kit, P/N 99263
Applies to Models F/B/FE/BE 200 (This size requires a valve
change when converting from propane to natural.)
Equipped with
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 121599 Valve, M/H #VR8304M2816
6 11831 Burner Orice, #35 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Pilot Valve
Manufacturer's
VR8204M1018
No.
M/H
TABLE 16 - Propane to Natural Conversion Kit, P/N 99267
Applies to Models F/FE/B/BE 400 (This size model requires a
valve change when converting from propane to natural.)
Equipped with
Type
Spark
w/100%
lockout
Components:
Qty P/N Description
1 222037
12 11831 Burner Orice, #35 (sea level)
1 103034 Pilot Orice, J/C #9731-715 (brass)
1 1401 Natural Gas Disk
1 64391 Conversion Tape
Pilot Valve
Manufacturer's
W/R #36C68-325
W/R #36H32-442
Replacement Valve Kit including P/N 221525
Valve, W/R #36H32-441; Compression Nut, P/N
97572; and Instruction Sheet, P/N 222038
No.
Form CP-F/B-GC P/N 99279 Rev 8, Page 12
Specications & illustrations subject to change without notice and without incurring obligations.
©Nortek Global HVAC, LLC 2017. All rights reserved.
All marks are the property of their respective organizations.
O’Fallon, MO I Printed in U.S.A. (11/17)
FORM CP-F&B-GC (A.2) PN_99279 R8
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