VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS
69-2013
8
STARTUP AND CHECKOUT
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE, SEVERE
INJURY, OR DEATH
1. Do not force the gas control knob. Use only
your hand to turn the gas knob. Never use any
tools.
2. If the gas control knob will not operate by hand,
call a qualified service technician to replace the
gas control.
Gas Control Knob Settings
The gas control knob operates differently in intermittent
pilot, hot surface and direct spark ignition systems.
The gas control knob settings for an intermittent pilot
system are as follows:
OFF: Prevents pilot and main burner gas flow.
ON: Permits gas to flow into the control body.
Under control of the thermostat and intermittent
pilot module, gas can flow to the pilot and main
burner.
The gas control knob settings for hot surface or direct
spark ignition systems are as follows:
OFF: Prevents main burner gas flow.
ON: Permits main burner gas flow. Under control
of the thermostat and ignition module, gas can
flow to the main burner.
NOTE: Gas controls are shipped with the gas control
knob in the ON position.
Perform Gas Leak Test
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE, SEVERE
INJURY, OR DEATH
Check for gas leaks with a rich soap and water
solution anytime work is done on a gas control.
Gas Leak Test
1.
Paint all pipe connections upstream of the gas con-
trol with a rich soap and water solution. Bubbles
indicate a gas leak.
2.
If a gas leak is detected, tighten the pipe connection.
CAUTION
Fire or explosion hazard.
Stand clear while lighting main burner to prevent
injury caused from hidden gas leaks that could
cause flashback in the appliance vestibule.
3.
Turn on the system by rotating the gas control knob
counterclockwise
to
ON.
4.
Light the main burner by following the appliance
manufacturer instructions or turning up the thermo-
stat to call for heat.
5.
With the main burner in operation, paint all pipe
joints and gas control inlet and outlet with a rich
soap and water solution.
6.
If another gas leak is detected, tighten joints and
pipe connections.
7.
If gas leak cannot be stopped, turn the gas control
knob clockwise
to OFF.
8.
Replace the leaking part.
9.
Perform the gas leak test.
Adjust the Pilot Burner Flame
(Intermittent Pilot Ignition only)
The pilot flame should envelop 3/8 to 1/2 in. [10 to 13 mm]
of the igniter-sensor tip. See Fig. 12. To adjust the pilot
flame:
1.
Remove the pilot adjustment cover screw. Refer to
Fig. 3.
2.
Turn the inner adjustment screw clockwise
to
decrease or counterclockwise
to increase pilot
flame.
3.
To prevent gas leakage, always replace the cover
screw after adjustment.
Fig. 12. Proper flame adjustment.
PROPER FLAME
ADJUSTMENT
IGNITER-
SENSOR
M3080A
3/8 TO 1/2 INCH
(10 TO 13 mm)
