Intertherm M7RL Series, User Manual

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STARTING THe fuRNACe
1. Make sure the filter is clean and properly installed.
2. Make sure the vent system is properly installed.
3. Set the thermostat to the lowest setting.
4. Close the manual gas valve outside the furnace.
5. Turn off all electric to the furnace.
6. Remove the door from the burner compartment.
7. Set the gas valve ON/OFF knob / switch to the OFF
position. See Figure 2 for gas valve type and knob /
switch location.
8. Wait 5 minutes. If there is any smell of gas, see WHAT
TO DO IF YOU SMELL GAS on page 3 .
9. Set the gas valve ON/OFF knob to the ON position.
10. Turn on all electric to the furnace, including the ON/
OFF switch.
11. Open the manual gas valve.
12. Turn the thermostat back up to force ignition.
13. Observe operation, including burners. If burners fail
to ignite, call a licensed HVAC technician.
14. Replace the door on the burner compartment.
SHuTTING DOWN THe fuRNACe
If you need to shut down your furnace for service or
maintenance, follow these steps:
1. Set the thermostat to the lowest setting.
2. Close the manual gas valve outside the furnace.
3. Turn electric to the furnace off.
4. Open the door to the burner compartment.
5. Set the gas valve ON/OFF knob / switch to the OFF
position. See Figure 2 for gas valve type and knob /
switch location.
6. Set the ON / OFF switch to off.
7. Replace the door on the burner Compartment.
Figure 2. Gas Valve
ON / OFF Knob
OFF Position
ON Position
ON
OFF
SINGLE STAGE GAS VALVE
TWO STAGE GAS VALVE
OFF Position
ON Position
ON / OFF Switch
MAINTeNANCe ITeM
fReQueNCY Of MAINTeNANCe
BeGINNING Of eACH
HeATING SeASON
eND Of eACH
HeATING SeASON
MONTHLY
Verify furnace area is free of combustible materials. X X X
Verify combustion and ventilation air is not restricted. X X X
Verify no signs of physical deterioration of the furnace. X X X
Verify no obstructions or restrictions in vent or chimney. X X
Verify no holes or cracks in vent pipe. X X
Verify no corrosion in vent pipe. X X
Verify the horizontal vent pipes slope upwards away from the furnace. X X
Clean or replace filter(s). X
MAINTENANCE ITEMS BELOW SHOULD BE PERFOMED BY qUALIFIED SERVICE PERSON.
Verify burner flame. X
Clean blower compartment. X
Clean burner assembly. X
Clean condensate collection & disposal system (if applicable). X
Table 1. Maintenance Table
STARTUP & SHUTDOWN