VR8215S,M,T SINGLE STAGE DIRECT IGNITION GAS CONTROLS
7
69-2253EF—01
SERVICE
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Do not disassemble the gas control; it contains
no replaceable components. Attempted
disassembly, repair, or cleaning can damage
the control, resulting in gas leakage.
CAUTION
Equipment Damage Hazard.
Can burn out thermostats or other components in
the control string.
Never apply a jumper across (or short) the valve
coil terminals, even temporarily.
After servicing, verify proper system operation.
If Main Burner Does Not
Come On With Call For Heat
1.
Confirm the gas control switch is in the ON
position.
2.
Adjust thermostat several degrees above room
temperature.
3.
Using ac voltmeter, measure across the quick
connect terminals at gas control.
4.
If voltage is incorrect or not present, check control
circuit for proper operation.
5.
If proper voltage is present, replace gas control.
Converting Gas Control from
Natural Gas to LP Gas (or LP
Gas to Natural Gas)
WARNING
Fire Or Explosion Hazard.
Can cause property damage, severe injury
or death.
1. Always change the main orifices when
converting from natural to LP gas or from LP to
natural gas. Carefully follow appliance
manufacturer specifications and instructions
to assure proper appliance conversion.
2. Gas controls are factory-set for natural (and
manufactured) or LP gas. Do not attempt to
use a gas control set for natural
(manufactured) gas on LP gas, or a gas control
set for LP gas on natural (manufactured) gas.
Single Stage
Single stage controls with standard and slow-opening
regulators (model numbers with suffix S, M, T) can be
converted from one gas to the other with a conversion
kit. See Table 4 for the correct conversion kit part
number.
1.
Turn off gas supply at the appliance service valve.
2.
Remove regulator cap screw and save. See Fig. 7.
3.
Remove the pressure regulator adjusting screw.
4.
Remove the existing spring.
5.
Insert the replacement spring. See Fig. 6.
6.
Install the new plastic pressure regulator adjust-
ment screw.
7.
Check the regulator setting using a manometer or
by clocking the gas meter. See “CHECK AND
ADJUST GAS INPUT AND BURNER IGNITION” on
8.
Adjust regulator by following the Single Stage Reg-
ulator Adjust ment process, below.
9.
Reinstall the regulator cap screw.
10.
Mount conversion label on the gas control.
Single Stage Regulator Adjustment
If necessary, adjust the pressure regulator to match the
appliance rating. See Table 6 for factory-set nominal
outlet pressure and adjustment range.
a. Remove the pressure regulator adjustment cap
screw.
b. Using a screwdriver, turn the inner adjustment
screw (Fig. 6) clockwise
to increase or
counterclockwise
to decrease the gas
pressure to the burner.
c. Always replace the cap screw and tighten
firmly to prevent gas leakage.
Fig. 6. Converting between LP and natural gas.
Fig. 7. Top view of gas control.
COLOR CODE FOR
LP
GAS
NATURAL
GAS
PRESSURE
REGULATOR
ADJUSTING
SCREW
BLACK
BLACK
SPRING
RED
STAINLESS
STEEL
PRESSURE
REGULATOR
HOUSING
M20046B
REUSE EXISTING METAL CAP SCREW.
1
1
M27670B
ON
OFF
PRESSURE REGULATOR
ADJUSTMENT (UNDER
CAP SCREW)
INLET
INLET
PRESSURE
TAP 1/8 IN.
NPT
OUTLET
OUTLET
PRESSURE
TAP 1/8 IN.
NPT
ON/OFF SWITCH