Qmark CFWF - Counterflow Electric Wall Furnace - Manual (Page 9)

How to Take Care of Your Furnace
Annual Upkeep
1. Heating Element and Optional Rear
Outlet
Keep clean at all times. Use a soft brush or vacuum
cleaner to clean all foreign materials from inlet and outlet
grille (and rear outlet grille if installed). To access the
heating element, remove (2) screws (Fig. 1, page 2) and
grasp face panel near bottom. Pull up and out. After
cleaning heating elements and Optional Rear Outlet,
replace the panel.
2. Motor and Fan
In order to get the maximum life out of your fan your
should clean any dust (by vacuuming or blowing) from the
ventilation holes. You should also add a few drops of #20
non-detergent oil to the bearing cavity (See Fig. 12).
To access the motor:
A. Remove the four screws holding the fan shroud to
side flanges of cabinet and remove the shroud (Fig.
1, page 2).
B. Caution: Be sure to mark the position of the fan blade
in relation to the motor shaft before removing.
Examine the blade nut and the amount of shaft that is
visible. Mark the motor shaft with a scratch or in
another fashion in order to reinstall the fan to its orig-
inal position.
C. Loosen the 5/32-inch "allen head" set screw holding
the fan blade to the motor shaft and remove the fan
blade. A wrench is provided for this purpose.
D. Reverse steps 1-3 to replace the fan blade.
1. Appliance Area
To more effectively heat your room and improve air circu-
lation, do not place furniture closer than 4 feet to the front
of the cabinet or 2 feet to the side of the cabinet.
2. Cabinet Finish
Clean the cabinet with a damp rag. Do not use abrasive
cleaners, as this may permanently damage the surface.
This heater is finished with a heat resistant polyester
powder baked finish. Do not refinish with wall paint.
WIRING DIAGRAM FOR MODEL CFWF920
Figure 12
OIL PORTS
FAN
MOTOR
CAUTION
Source of Possible Ignition
!
High temperature. Keep combustible
material away from front of the heater.
The appliance must be kept clear and free
from combustible material, gasoline, and
other flammable vapor and liquids.
WARNING
Danger of Bodily Injury
!
WARNING
!
Turn off electric power supply at discon-
nect switch, fuse box, or service panel
before removing any doors or access or
service panels from unit.
Turn off electric power supply at discon-
nect switch, fuse box, or service panel
before removing any doors or access or
service panels from unit.
9
To External
Low Voltage
Thermostat
Power Supply
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Fan
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Thermal Fuse
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Thermal Fuse
Pilot
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8
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