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INSTRUCTIONS MUST BE LEFT WITH THE OWNER FOR FUTURE REFERENCE AFTER INSTALLATION
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) (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.
6. 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
Page 16
OPTIONAL BLOWER
INSTALLATION
INSTRUCTIONS
steps to reassemble the wiring harness.
1. Attach (1) pin terminal from black (hot) wire, smooth insulation
2. Attach (1) pin terminal from black (neutral) wire, ribbed insulation
3. Attach (1) pin terminal on fan control assembly to (1) socket
4. Attach green ground wire beneath one of the #10 x 1/2" (13mm)
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.
on cord set to (1) socket terminal on fan control assembly.
on cord set to (1) socket terminal from white (neutral) wire on
motor.
terminal from black (hot) wire on motor.
screws on the blower housing.
OPTIONAL BLOWER DRB-1
Vented Room Heaters
RH-25 and RH-35
Direct Vent Wall Furnaces
DV-25-SG, DV-35-SG
38151-4-0320
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