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
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