FireLake 155 Owner's Manual page 26

10. When ignition occurs and combustion is sustained, the heat exchanger temperatures will rise. When 120° F is
achieved, the fan limit switch closes, thus starting the blower to push heated air into the room.
11. When the room thermostat is satisfied, the power to the ignition system will be interrupted thus causing the
burner to shut down. The blower will continue to operate until the heat exchanger temperature reduces to 90° F
at the fan limit switch.
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