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SYSTEM CONTROL CHECK OUT PROCEDURES
1. For furnaces or boilers, adjust the thermostat to call for heat and observe the power venting system for proper
operation sequence. (Repeat if necessary)
a. Thermostat calls for heat.
b. Relay is energized and venter motor starts.
c. Pressure switch closes and burner starts.
d. Thermostat is satisfied, the burner stops.
e. This starts the post purge cycle. Purge time 1 to 2 min.
2. While system is operating, disconnect power to the venter motor. This should open the pressure switch contacts and
stop burner operation.
TROUBLE SHOOTING HINTS
1. Venter does not activate when thermostat calls for heat.
a. Check wiring.
b. Check for 24 volts between T1 and T2 on the CK-41F control kit.
c. If there is 24 volts replace post purge timer.
2. Flue gas odor.
a. Check system draft.
b. Check for negative pressure in building.
REPAIR AND REPLACEMENT PARTS
REPAIR AND REPLACEMENT PARTS LIST
DESCRIPTION
Pressure Switch
Post Purge Timer
Page 7
PART NUMBER
46083000
46282800
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