Submittal Sheet

Page 6
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 gas pressure switch for continuity across terminals when gas valve is pressurized.
c. Check gas pressure.
2. Flue gas odor.
a. Check system draft.
b. Check for negative pressure in building.
3. Pilot will not stay lit on water heater.
a. Solder all spillage switch wire terminal connections.
b. Check reset buttons on spillage switches.
REPAIR AND REPLACEMENT PARTS
REPAIR AND REPLACEMENT PARTS LIST
DESCRIPTION PART NUMBER
Pressure Switch 46083000
Post Purge Timer 46282800