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12822-2-0903 Page 17
Attention: Wiring harness on blower is factory assembled and
installed. If wiring harness becomes disassembled use the
following steps to reassemble the wiring harness.
1. Attach (1) pin terminal from black (hot) wire, smooth
insulation on cord set to (1) socket terminal on fan control
assembly.
2. Attach (1) pin terminal from black (neutral) wire, ribbed
insulation on cord set to (1) socket terminal from white
(neutral) wire on motor.
3. Attach (1) pin terminal on fan control assembly to (1)
socket terminal from black (hot) wire on motor.
4. Attach green ground wire beneath one of the #10 x 1/2"
(13mm) screws on the blower housing.
Fan Control
The automatic fan control is located in the switch box. The
switch box is attached to the front of the blower assembly. The
switch box is adjacent to the combustion chamber. The fan
control is a non-adjustable automatic type. The fan control will
require between 5 and 10 minutes of main burner operation
before the fan control "closes" and activates the blower. The
blower will continue to run between 5 and 10 minutes after the
main burner shuts off, before the fan control "opens" and
deactivates the blower.
Index Part
No. No. Description
1 11727 Blower Housing and Chute Assembly
2 9120106 Fan Control Switch
3 RH-863 Switch Box
4 DV-807 Switch Box Cover
5 R-2091 Wire Assembly
6 642031 Blower Wheel
7 11728 Motor Mounting Plate
8 632016 Motor Cushion
9 R-2605 Motor
10 8720161 Strain Relief Bushing
11 R-2099 Cord Set
12 RH-138 Blower Cushion
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 or Canadian
Electrical Code, CSA C22.1, 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 screws. With this wire completing the
ground, the appliance cord plug can be plugged into the adapter
and be electrically grounded. A 7/8" (22mm) hole is provided in
the junction box for use with a conduit connector if local codes
require this type of protection.
Wiring Diagram
If any of the original wire as supplied with the appliance must be
replaced, it must be replaced with type 125°C wire or its equivalent.
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after servicing.
Warning:
Unplugging of blower accessory will not stop the heater
from cycling. To shut heater off:
1. Turn temperature dial or thermostat to lowest setting.
2. Turn knob on gas control to "OFF", depressing
slightly. Do not force.
Cleaning
The blower wheel will collect lint and could require cleaning once
a year. If the air output decreases or the noise level increases, it
indicates a dirty wheel. Complete removal of the wheel and
scrubbing it with a brush under flowing water is recommended.
Oiling
The blower motor has an oil hole located on each end of the motor.
Use #20 motor oil only. It is best to oil the motor several times
during the heating season using 2 or 3 drops each time. If the motor
fails to start and hums, it could be a tight bearing due to lack of oil.
This may be corrected by pouring kerosene in the oil holes,
allowing to stand for a few hours and then oiling properly.