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OPTIONAL BLOWER INSTALLATION INSTRUCTIONS
Installing Optional DRB-1 Blower
1. For RH-25 and RH-35, remove casing front.
1. For DV-25-SG and DV-35-SG, remove casing front and
heat shield.
2. When facing appliance, insert blower assembly into the
left section of the casing (adjacent to the combustion
chamber).
3. For RH-25 and RH-35, route cord set through opening
in casing back. The opening in casing back is located
adjacent to gas control.
3. For DV-25-SG and DV-35-SG, route cord set through
opening in casing bottom. The opening in casing bottom
is located beneath gas control.
4. Align the (2) screw holes on the inner side panel and the
(2) screw holes on casing back with the (4) clearance
holes on the blower assembly. Attach blower assembly to
the casing back and inner side panel with (4) #10 x 1/2"
(13mm) screws provided. The blower assembly must be
attached first to the casing back and then to the casing
side panel.
5. For RH-25 and RH-35, replace casing front.
5. For DV-25-SG and DV-35-SG, replace heat shield and
casing front.
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.
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OPTIONAL BLOWER DRB-1
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.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Unplugging of blower accessory will not stop the heater
from cycling. To shut heater off: Turn temperature dial
or thermostat to lowest setting. Turn knob on gas
control to "OFF", depressing slightly. Do not force.
CAUTION
WARNING
37408-8-1020
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