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23552-1-0607 Page 47
Attention: Install blower assembly before connecting gas inlet
supply line
Note: Junction box on right side of fireplace must be pre-wired at
time of fireplace installation for use with blower assembly.
It is recommended that an ON/OFF wall switch be installed
that will activate the power supply to the furnace by a
qualified electrician.
1. If installed, turn OFF gas supply to fireplace.
2. If applicable, turn OFF electric supply to fireplace.
3. Lower bottom louver on fireplace.
4. Refer to page 49, "Junction Box Wiring Installation
Instructions" to complete wiring of junction box.
Attention: If installed, do not damage gas inlet supply line
when blower assembly is inserted into fireplace. If
necessary, remove gas inlet supply line.
5. Insert blower assembly into interior, bottom of fireplace.
Position blower assembly behind gas valve, align notch on
back of blower assembly with center screw on fireplace back
and push blower assembly against fireplace back. The magnets
on the back and bottom of blower assembly will sufficiently
hold blower assembly in place.
6. Position speed control box to the right of gas valve. Attach
speed control box to bottom of fireplace. The magnets on
bottom of speed control box will sufficiently hold speed control
box in place.
7. With base (flush face) of fan control switch facing upward,
insert base of fan control switch under the mounting tabs on
valve bracket. The base (flush face) of fan control switch must
be in contact with bottom of firebox.
8. Insert power cord plug into junction box.
9. Close bottom louver on fireplace.
10. Installation of FBB4 optional variable speed blower assembly
is completed.
Wiring
The appliance, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes,
with the National Electrical Code, ANSI/NFPA 70, if an external
electrical source is utilized. This appliance is equipped with a
three-prong [grounding] plug for your protection against shock
hazard and should be plugged directly into a properly grounded
three-prong receptacle. Do not cut or remove the grounding
prong from this plug. For an ungrounded receptacle, an adapter,
which has two prongs and a wire for grounding, can be purchased,
plugged into the ungrounded receptacle and its wire connected
to the receptacle mounting screw. With this wire completing the
ground, the appliance cord plug can be plugged into the adapter
and be electrically grounded.
Caution: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.
Blower Motor
The blower motor does not have oiling holes. Do not attempt to
oil the blower motor.
Blower Wheels
The blower wheels will collect lint and could require periodic
cleaning. If the air output decreases or the noise level increases,
it indicates a dirty blower wheel. Remove fan and clean blower
wheels.
Warning: Unplugging of blower accessory will not stop the
heater from cycling. To turn off gas to the heater (millivolt
model): push in gas control knob slightly and turn clockwise
to "OFF." Do not force. To turn off gas on direct ignition
model, turn gas line valve to "OFF."
VALV
E BRACKET
F
AN
SWITCH
FA
N KIT
SPEED
CONTROL
JUNCTION
BOX
SWITCH
HOLDER
(TOP
OF VALV
E BRACKET)
SEE NOTE
Note: Refer to wiring instructions on page 48 for proper
operation.
FBB4 OPTIONAL VARIABLE SPEED BLOWER INSTALLATION