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For Honeywell Gas Valve: Turn gas control knob
counter-clockwise from “OFF” until it stops.
Push in gas control knob and continue rotating
counter-clockwise to “ON” position. Make
sure knob rest against stop.
For Honeywell Gas Valve: Turn gas control knob
counter-clockwise to “ON”.
9. Replace door panel.
10. Turn on all electric power to the appliance.
11. Set tankstat to desired setting.
12. If the appliance will not operate, follow the instruc-
tions “To Turn Off Gas To Appliance” and call your
service technician or gas supplier.
To Turn Off Gas To Appliance
1. Set the thermostat to the lowest setting.
2. Turn off all the electric power to the appliance if
service is to be performed.
3. Remove door panel.
4. For Robertshaw IID Gas Valve: Turn gas control
knob clockwise to “OFF”.
For Honeywell Gas Valve: Turn gas control knob
clockwise to “OFF”. Make sure knob rest
against stop.
For Honeywell 24V Standing Pilot Gas Valve:
Push in gas control knob slightly and turn clock-
wise to “OFF”.
5. Replace heater door panel.
Testing the Ignition Safety Shut-off
The ignition system safety shutoff must be tested by
conducting the following tests:
For Standing Pilot Systems
1. With the main burners on, remove the pilot adjust-
ment cover screw.
2. Insert a small slot screw driver and turn the adjust-
ment screw clockwise until pilot flame goes
out. Count and note number of turns made.
3. Gas valve will shut off main burners after about
three (3) minutes. End of test. If the gas valve will
not shut off, follow the instructions "To Turn Off
Gas To Heater" and call service technician or your
gas supplier.
4. Return pilot adjustment screw counterclockwise
same number of turns as in step (b).
5. Replace pilot adjustment cover screw, then follow
the lighting instructions to get heater ready for
operation.
For Automatic Ignition Systems
1. Turn on power to the ignition systems and turn gas
supply off at the gas valve.
2. Check ignition module as follows:
a. Set the tankstat to high setting.
b. Watch for continuous spark at the pilot burner.
c. Time the spark operation. Time must be with-
in the lockout timing period (15 or 90
seconds).
d. Turn tankstat down to end call for heat and
wait 60 seconds on lockout models before
beginning step 3.
3. Turn on gas supply.
4. Set tankstat to high setting.
5. Systems should start as follows:
a. Spark will turn on and pilot gas valve will open
at once. Pilot burner should ignite after gas
reaches the pilot burner.
b. Spark ignition should cut off when pilot flame
is established.
c. Main gas valve should open and main burner
should ignite after gas reaches the burner
port.
GAS CONTROL
KNOB SHOWN
IN “ON” POSITION
GAS INLET
Fig. 24: Honeywell Gas Valve
GAS CONTROL
KNOB SHOWN
IN “ON” POSITION
GAS INLET
Fig. 25: Honeywell Gas Valve