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For more information, visit www.desatech.com
For more information, visit www.desatech.com
13
13
INSTALLATION
Installing Variable Speed Blower Accessory (Cont.)
Installing Thermostatic Blower Accessory
INSTALLATION
Continued
Operating the Blower
Light your gas appliance with the blower off. After about 15
minutes, turn the blower on to deliver heated air at the top louvers.
The blower features a variable control which allows you to select the
speed you desire.
Note:
Periodically check the louvers of the fire-
box and remove any dust, dirt, or other obstructions.
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Wiring
Diagram
101584-05
120 Vac. 60 Hz. . 78 Amps
DESA International, Bowling Green, KY
WARNING: Never attempt to service heater while it is plugged in, oper-
ating, or hot. Burns and electrical shock could result. Only a qualified ser-
vice person should service or repair heater.
If any of the original wire as supplied with the appliance must be replaced, it must be
replaced with 105°C wire or it’s equivalent.
WARNING: Label all wires prior to disconnection when servicing con-
trols. Wiring errors can cause improper and dangerous operation. Verify proper
operation after servicing.
Variable
Fan Switch
WhiteWhite
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black
Black
Off
Figure 17 - Location of Wiring Diagram Decal 3" from Blower
(VTGF33NR/VTGF33PR Shown)
1. If fireplace screen and floor are still installed, see Removing
Fireplace Screen and Floor Assembly, page 8.
NOTICE: Shut off gas supply and disconnect heater
from gas supply if installing blower in previously
installed fireplace. Contact a qualified service person
to do this.
INSTALLING THERMOSTATIC BLOWER
ACCESSORY
2. Using screw provided, attach green ground wire from speed
control cord to blower housing. Tighten screw securely (see
Figure 18).
3. Place the blower against lower rear wall of firebox outer wrap-
per with the exhaust port directed upward. Align the holes in
top mounting tabs of blower with holes in wall of wrapper
(see Figure 19, page 14). Using two #8 screws provided, mount
blower and tighten screws firmly.
4. Remove the three screws (do not discard) and cover plate from
center of firebox wrapper rear wall. Discard this cover plate
(see Figure 18).
5. Mount the supplied thermostatic switch and cover assembly
into firebox wrapper wall. Do this by feeding terminal ends of
wire harness into the hole. Allow wires to fall to bottom of
firebox cavity (see Figure 18).
6. Using three screws from step 7, attach switch and cover as-
sembly to firebox wrapper rear wall. Tighten screws firmly
(see Figure 18).
7. Firmly attach red wire from the thermostatic switch and cover
assembly to either of the terminals on the blower motor (see
Figure 18).
8. Firmly attach black wire from speed control cord to blue wire
from thermostatic switch and cover assembly (see Figure 18).
9. Firmly attach white wire from speed control cord to remaining
terminal on blower motor (see Figure 18).
Figure 18 - Installing Switch and Cover Assembly, and Speed
Control (VTGF33NR/VTGF33PR Shown)
Thermostatic Switch
and Cover Assembly
Red
Wire
Blue
Wire
Black
Wire
Green
Wire
White
Wire
Speed
Control