11
MAINTENANCE & REPAIRS
A. REPLACING ELEMENT
NOTE: Replace one element at a time.
1)
DISCONNECT POWER SOURCE.
2) Remove both the left and right side panels,
by removing the truss head screws. Pull the
top of each panel out slightly and lift up.
3) Remove the wire terminal from the each end of
the element you are replacing.
4) Remove the screws holding the Element
Retainer and let it hang.
5) Gently, pull defective element out of unit.
6) Guiding the new element into position.
7) Thread wire through the specifi c hole in the
element retainer & reconnect the wires to its
previous position, lightly tug on the wire to
ensure a good connection.
8) Reinstall the retainer to secure the element
in
place.
9) Install each side panel
10) Connect unit to power source and test unit for
proper
operation.
B. REPLACING FAN MOTOR
1)
DISCONNECT POWER SOURCE
.
2) Remove the side panel with the fan that needs
replaced.
3) Unplug power supply cord from fan motor.
4) Remove (4) screws, which hold fan motor and
grill to the side panel and remove fan.
5) Put replacement motor and grill in place and
secure to the side panel with screws
previously
removed.
6) Reconnect power supply cord to fan motor.
7) Replace back panel and enclosure. Fasten with
screws removed in step 2, being sure to keep
wires away from the fan motor.
8) Connect unit to power source and test unit for
proper
operation.
C. REPLACING BELT DRIVE MOTOR
1)
DISCONNECT POWER SOURCE.
2) Remove the side panel & access panel
exposing the drive chain, sprockets & drive
motor
3) Remove sprocket from motor shaft, using an
Allen wrench and loosening the set-screw.
4) Disconnect the wires from terminal
connecting the drive motor.
Note
how the old motor is wired for
replacement. For reference, use the black
and white wires for 208V units and the black
and blue wires for 240V units. The unused wire
Retainer
Element
Side Panels
Access Panel
IL1157
IL1158
Side Panel
Air Intake Grill
Fan Motor
IL1345
Drive Motor
Drive Sprocket
Chain
Driven Sprocket
should be taped on the end and bundled with the existing wires so it will not get tangled in any moving parts.
5) Remove screws holding motor in place and remove motor from unit.
6) Install the new motor in place and attach loosely with mounting screws.
