Carrier 58VMR User Manual

Page 6

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 thermostat to lowest setting.

(See Fig. 8.)

2. Turn off all electrical power to furnace.

(See Fig. 9.)

3. Close oil supply valve. (See Fig. 10.)

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 furnace is being shut down because of a malfunc-

tion, 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:

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 furnace air filters be checked
every 3 or 4 weeks and cleaned or replaced as necessary.

The air filter is installed in an external filter rack which
is provided as standard equipment with furnace. To
inspect, clean, and/or replace air filter, follow these
steps:

1. Turn off electrical supply to furnace. (See Fig. 11.)

2. Remove filter from external filter rack.

3. Inspect filter. If torn, replace it.

WARNING

ELECTRICAL SHOCK HAZARD
Failure to take 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

CUT HAZARD
Failure to follow this caution may result in per-
sonal injury.
Although special care has been taken to mini-
mize sharp edges, be extremely careful when
handling parts or reaching into the furnace.

CAUTION

UNIT DAMAGE HAZARD
Failure to follow this caution may result in re-
duced unit component life.
Never operate your furnace without the air fil-
ters in place. Doing so may damage the fur-
nace blower motor. An accumulation of dust
and lint on internal parts of your furnace can
cause a loss of efficiency.