technician. Force or attempted repair may result in a fire or explosion.
D.Do not use this boiler if any part has been under water. Immediately call a qualified service techni- cian to inspect the boiler and to replace any part of the control system and any gas control which has been under water.
For Intermittent Ignition (IID) with Honeywell or Robertshaw Gas Valve (All Models)
1.STOP! Read the previous safety information.
2.Set the thermostat to the lowest setting.
3.Turn off all electrical power to the appliance.
4.This boiler is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.
GASCONTROL
KNOBSHOWN
IN"OFF"
POSITION
GASINLET
HONEYWELL
(Models 30 - 90)
Fig. 29: Honeywell Gas Valve
5.For Honeywell valve: Turn gas control knob
clockwise 
to "Off".
For Robertshaw valve: Push in and move gas control lever to "Off" position.
6.Wait 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 on the label affixed to the front of the unit. If you don't smell gas, go to the next step.
7.For Honeywell valve: turn gas control counter-
clockwise 
to "On".
For Robertshaw valve: Move gas control lever to "On" position.
GAS CONTROL
KNOB SHOWN
IN "OFF"
POSITION
GAS INLET
ROBERTSHAW
(All Models)
Fig. 30: Robertshaw Gas Valve
8.Turn on all electrical power to the boiler.
9.Set thermostat to desired setting.
10.If the boiler will not operate, follow the instructions "To Turn Off Gas To Boiler" and call your service technician or gas supplier.
To Turn Off Gas to the Boiler
1.Set the thermostat at the lowest setting.
2.Turn off all electrical power to the boiler if service is to be performed.
3.For Honeywell valve:
Turn gas control knob clockwise 
to "Off". Make sure knob rest against stop.
For Robertshaw valve:
Push in and move gas control lever to "Off" position.
HONEYWELL PILOT
Fig. 31: Honeywell Pilot
Shut-down Procedure
To prevent freeze damage to the heating system, it is recommended that the following system
1.Set the room thermostat to "OFF" or the lowest setting.
2.Turn off all electrical switches to the boiler.
29
