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18. LIGHTING INSTRUCTIONS
1. Turn off electric power to boiler.
2. Close main manual valve and main firing valve and wait 5 minutes.
3. Set primary system controller to desired temperature.
4. Open pilot valve.
5. Turn on electric power to boiler. The electrode at the pilot should begin to spark after pre-
purge is complete. The pilot valve will open to permit gas flow to the pilot.
6. There is a 15 second trial for ignition, which is enough time to light the pilot if air is not
present in the pilot line. If pilot fails to light and you suspect air in the line, close the main
manual valve and repeat lighting steps 1 thru 5.
7. Once the pilot lights, it should envelope the ignition rod and ground electrode. The pilot can
be adjusted by removing the pilot regulator cover and turning the adjustment screw counter
clockwise to increase it or clockwise to decrease it.
8. Open the main manual and main firing valves to allow gas to reach the main burner. If the
main burner fails to ignite, turn the firing valve off and check to see that the pilot is burning. If
not, repeat lighting procedure steps 1 thru 7.
TO TURN OFF BOILER: Close main manual valve and main firing valve and turn off electric
power to system.
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