SHUTTING DOWN YOUR FURNACE
Should you need to shut down your furnace for service or maintenance, you will need to turn the furnace off. The following procedures must be followed:
1.Set the thermostat to the lowest setting. (See Fig. 8.)
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2.Turn off all electrical power to the appliance. (See Fig. 9.)
3.Close the oil supply valve. (See Fig. 10.)
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4.If applicable, turn off water supply to humidifier.
5.If furnace blower will be necessary for cooling sys- tem, remember to turn electric power back on when needed for air conditioning.
6.If the furnace is being shut down because of a mal- function, call your dealer as soon as possible.
ALWAYS KEEP MAIN OIL VALVE TURNED OFF IF BURNER IS SHUT DOWN FOR AN EXTENDED PERIOD OF TIME.
PERFORMING ROUTINE
MAINTENANCE
With proper maintenance and care, your furnace will operate economically and dependably. Instructions for basic maintenance follow. However, before beginning maintenance, follow these safety precautions:
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!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Turn off all electrical power to furnace before performing any maintenance or service on unit.
!CAUTION
CUTS HAZARD
Failure to follow this caution may result in minor personal injury.
Although special care has been taken to mini- mize sharp edges, be extremely careful when handling parts or reaching into the furnace.
FILTERING OUT TROUBLE
Dirty air filters will cause a loss of airflow in your duct system. When excessive loss of airflow occurs, the fur- nace may cycle on its safety controls. If this condition is left unattended, the furnace will eventually lock out. It is recommended that the furnace air filters be checked every 3 or 4 weeks and cleaned or replaced as necessary.
!CAUTION
UNIT OVERHEAT HAZARD
Failure to follow this caution may result in damage to the furnace blower motor, over heat the heat exchanger and reduce the effi- ciency.
Never operate your furnace without the air filters in place.
The air filters are located in the blower compartment installed in an internal filter rack which is provided as standard equipment with furnace. (See Fig. 2.) To inspect, clean, and or replace air filters, follow these steps:
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