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IGNITION CONTROL MODULE
The intermittent ignition device conserves energy by automatically extinguishing
the pilot when the desired temperature is reached. When additional heat is needed,
the combustion air blower starts to purge all air from the combustion chamber for
about 45 seconds. On proof of air flow, the air proving switch closes and the pilot
reignites electrically, eliminating the fuel costs of maintaining a constant pilot. To
assure safe operation, the gas valve cannot open until the pilot relights and is
verified. The 100% pilot safety is an electronic device which closes the main gas
valve within 8/10 of a second whenever the pilot flame is interrupted. Pilot flame is
automatically lit when the device is powered and pre-purged. Unit performs its own
safety check and opens the main valve only after the pilot is proven to be lit.
HIGH LIMIT - MANUAL RESET
This appliance is equipped with a manual reset, high limit, safety device. Push the
reset button and adjust the setting to 40°F above the desired operating temperature.
FLOW SWITCH
Dual-purpose control shuts off boiler in case of pump failure or low water condi-
tion. Mounted and wired in series with the main gas valve. Check with Manufac-
turer for proper paddle size. Utilize correct paddle size for proper operation.
NOTICE: Flow switch will not operate if flow is less than 20 GPM.
HIGH LIMIT - AUTO RESET
This appliance is equipped with an automatic, high limit, safety device. Set the auto
high limit to 30°F above the desired operating temperature.
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IGNITION MODULE
MANUAL RESET HIGH LIMIT
FLOW SWITCH
AUTO RESET HIGH LIMIT