Empire Comfort Systems 3)(N, 1, 2 FBB4 OPTIONAL VARIABLE SPEED BLOWER INSTALLATION, Wiring

FBB4 OPTIONAL VARIABLE SPEED BLOWER INSTALLATION

Attention: Install blower assembly before connecting gas inlet	5.	Insert blower assembly into interior, bottom of fireplace.
supply line		Position blower assembly behind gas valve, align notch on
Note: Junction box on right side of fireplace must be pre-wired at		back of blower assembly with center screw on fireplace back
		and push blower assembly against fireplace back. The magnets
time of fireplace installation for use with blower assembly.
		on the back and bottom of blower assembly will sufficiently
It is recommended that an ON/OFF wall switch be installed
		hold blower assembly in place.
that will activate the power supply to the furnace by a
	6.	Position speed control box to the right of gas valve. Attach
qualified electrician.
		speed control box to bottom of fireplace. The magnets on
1. If installed, turn OFF gas supply to fireplace.		bottom of speed control box will sufficiently hold speed
2. If applicable, turn OFF electric supply to fireplace.		control box in place.
3. Lower bottom louver on fireplace.	7.	With base (flush face) of fan control switch facing upward,
4. Refer to page 49, "Junction Box Wiring Installation		insert base of fan control switch under the mounting tabs on
Instructions" to complete wiring of junction box.		valve bracket. The base (flush face) of fan control switch must
Attention: If installed, do not damage gas inlet supply line		be in contact with bottom of firebox.
	8.	Insert power cord plug into junction box.
when blower assembly is inserted into fireplace. If
	9.	Close bottom louver on fireplace.
necessary, remove gas inlet supply line.
	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."

	SEE NOTE
	JUNCTION BOX
FAN KIT	SPEED CONTROL
VALVE BRACKET
FAN SWITCH
	SWITCH HOLDER
(TOP OF VALVE BRACKET)

Note: Refer to wiring instructions on page 51 for proper operation.

23552-4-0408 Page 51