Utica Gas-fired Boiler - Manual (Page 17)

9. Push in gas control knob or reset button if so equipped, all the way in and hold.
Immediately light the pilot with a match. Continue to hold the gas control knob or reset button
in for about 1 minute after the pilot is lit. Release knob or button, and it will pop up back up.
Pilot should remain lit. If it goes out, repeat steps 5 through 9.
* If knob or button does not pop up when released, stop and immediately call a qualified
service technician or your gas supplier.
* If the pilot will not stay lit after several tries, turn the gas control knob clockwise
to "OFF". (See note #1), and call a qualified service technician or your gas supplier.
10. Replace burner door.
11. Turn gas control knob counterclockwise
to "ON".
12. Replace access panel.
13. Turn on all electric power to the appliance.
14. Set thermostat to desired setting.
T T T T TO O O O O TURN OFF GAS TURN OFF GAS TURN OFF GAS TURN OFF GAS TURN OFF GAS T T T T TO O O O O APPLIANCE APPLIANCE APPLIANCE APPLIANCE APPLIANCE
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Push in gas control knob slightly and turn clockwise
to "OFF", DO DO DO DO DO
NOT FORCE. NOT FORCE. NOT FORCE. NOT FORCE. NOT FORCE.
5. Call a qualified service technician.
NORMAL SEQ NORMAL SEQ NORMAL SEQ NORMAL SEQ NORMAL SEQUENCE OF OPERA UENCE OF OPERA UENCE OF OPERA UENCE OF OPERA UENCE OF OPERATION TION TION TION TION
On a call for heat, the thermostat will actuate, completing the circuit to the aquastat. The
completed circuit to the aquastat will first activate the circulator and damper which will close
an end switch inside the damper. This action will complete the circuit to the ignition system
and ignition will take place.
In the event the boiler water temperature exceeds the high limit setting on the boiler
mounted aquastat, power will be interrupted between the aquastat and the ignition system.
The power will remain off until the boiler water temperature drops below the high limit setting.
The circulator will continue to operate under this condition until the thermostat is satisfied.
In the event the flow of combustion products through the boiler venting system becomes
blocked, the blocked vent safety switch will shut the main burner gas off. See figure 18, page
17. Similarly, if the boiler flueway becomes blocked, a flame rollout safety switch will shut
the main burner gas off. See figuer 18, page 17. If either of these conditions occur, do not
attempt to place the boiler back into operation. Contact a qualified service agency.
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