GWA
Gas-Fired Water Boilers –
Boiler Manual
17
Part Number 670 01 1001 00
Check the pilot ignition system used for the boiler.
The boiler model suffix will contain an “S” for standing
pilot or an “I” for spark-ignited pilot. See Section 9,
pages 20 and 21, for standing pilot boiler “Lighting
Instructions”, or the Control Supplement for spark-
ignited pilot “Operating Instructions”.
Figure 12
Typical pilot burner flame
Verify operation
Check vent damper operation
1. Raise room thermostat to call for heat — Vent damper actuator
will slowly open vent damper.
2. When vent damper is fully open — Main gas valve will open
and main burners will ignite. (Spark-ignited pilot controls will
first light pilot, then allow main burners to ignite.)
Vent damper must be fully open before main burners
light. If vent damper does not fully open, flue products
such as carbon monoxide will escape into house,
causing severe personal injury or death.
3. Lower thermostat setting — Main burner flames will go out, then
vent damper will close.
4. Repeat Steps 2 through 4 several times to verify operation.
5. Return thermostat to normal setting.
6. Set thermostat heat anticipator setting indicated on wiring
diagram.
Check venting system operation
1. With boiler firing, hold a candle or match below lower edge of
draft hood “skirt.” If flame does not blow out, but burns
undisturbed, the vent system is working properly. If flame blows
out or flickers severely, the vent system must be checked for
obstructions or other causes of improper venting.
Figure 13
Typical main burner flame
Check burner flames — Main burner
Proper main burner flame (see Figure 13):
1. Yellow-orange streaks may appear (caused by dust).
Improper main burner flame:
1. Overfired — Large flames.
2. Underfired — Small flames.
3. Lack of primary air — Yellow tipping on flames (sooting will
occur).
Check burner flame — Pilot burner
Proper pilot flame (see Figure 12):
1. Blue flame.
2. Inner cone engulfing thermocouple (standing pilot) or pilot flame
sensor (spark-ignited pilot).
3. Thermocouple or pilot flame sensor glowing cherry red.
Improper pilot flame:
1. Overfired — Large flame lifting or blowing past pilot flame
sensor.
2. Underfired — Small flame. Inner cone not engulfing pilot flame
sensor.
3. Lack of primary air — Yellow flame tip.
4. Incorrectly heated pilot flame sensor.
6
Start-up
continued
GWA
Gas-Fired Water Boilers –
Boiler Manual
20
Part Number 670 01 1001 00
9
Lighting Instructions — GWA standing pilot boilers
Honeywell VR8200/VR8300 gas valve
If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
A. This appliance has a pilot, which must be
lighted by hand. When lighting the pilot, follow
these instructions exactly.
B. Before LIGHTING, smell all around the
appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor. See below.
C. Use only your hand to push down the reset button or turn the gas control
knob. Never use tools. If the knob or reset button will not operate by hand,
don't try to repair it, call a qualified service technician. Force or attempted
repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call
a qualified service technician to inspect the appliance and to replace any
part of the control system and any gas control, which has been under water.
•
Do not try to light any appliance.
•
Do not touch any electric switch; do not use any phone in
your building.
•
Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
•
If you cannot reach your gas supplier, call the fire department.
1. Stop! Read the safety information above on this label.
2. Set the thermostat to lowest setting.
3. When equipped with Effikal vent damper Model RVGP, place
service switch in Hold Damper Open position.
4. Turn off all electrical power to the appliance.
5. When equipped with Johnson Controls vent damper Model
M35, manually rotate damper blade in direction of arrow to
Open position indicated on damper assembly.
6. Turn gas control knob clockwise
to OFF.
7. When equipped with vent damper, verify damper blade is in
full open position.
8. Wait five (5) minutes to clear out any gas. Then smell for
gas, including near the floor. If you smell gas, STOP! Follow
"B" in the safety information above. If you don't smell gas,
go to the next step.
9. Remove access panel located above burners.
10. Find pilot — follow metal tube from gas control.
The pilot is between two burners behind the
access panel.
11. Turn gas control knob counterclockwise
to
PILOT.
12. Push in red reset button and hold. Immediately light the pilot
with a match. Continue to hold reset button in for about one
(1) minute after the pilot is lit.
13. Release reset button. Pilot should remain lit. If pilot goes out,
repeat steps 6 through 13.
•
If reset button stays depressed after release, stop and
immediately call your service technician or gas supplier.
•
If the pilot will not stay lit after several tries, turn the gas control
knob clockwise
to OFF and call your service technician
or gas supplier.
14. Replace access panel.
15. Turn gas control knob counterclockwise
to ON.
16. Turn on all electric power to the appliance.
17. When equipped with Effikal vent damper, place service switch
in Automatic Operation position.
18. Set thermostat to desired setting.
19. Replace front panel.
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be
performed.
3. Remove front panel.
4. Turn gas control knob clockwise
to OFF.
5. Replace front panel.
FOR YOUR SAFETY READ BEFORE LIGHTING
LIGHTING INSTRUCTIONS
TO TURN OFF GAS TO THE APPLIANCE
WHAT TO DO IF YOU SMELL GAS
