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107032-01F
For more information, visit www.desatech.com
For more information, visit www.desatech.com
15
15
1
2
Remove
Screw
Valve Cover
Shield
Shoulder
Screw
Removing Valve Cover Shield
1. Open bottom louver assembly by swinging the assembly down
(see Figure 22).
2. Using short Phillips screwdriver, remove the screw under the
center of the branch support. Rotate valve cover shield clock-
wise and slide out.
IMPORTANT:
Do not remove shoulder screw on the left side
of valve cover shield. Slide the valve cover shield off of the
shoulder screw (see Figure 22).
Note:
If you do not have a short Phillips screwdriver, the
screen, logset, and branch support must be removed so a longer
screwdriver may be used. See Removing Upper Louver As-
sembly and Branch Support, page 12.
Figure 22 - Removing Valve Cover Shield
Branch Support
Snap Bushings
Bottom Louver Assembly
INSTALLATION
Continued
Installing Blower Assembly
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation.
CAUTION: Verify proper operation after servicing.
Note:
If you are using a mantel with your fireplace, use the
following instructions. If your fireplace is built-in, see For Built-In
Installation on page 14.
1. Install snap bushings found in hardware kit into both holes in
rear of valve cover shield.
2. Make sure the wire harness is firmly connected to the terminals
on the blower bracket assembly.
Figure 23 - Installing Blower Bracket Assembly
3
2
1
Wire
Harness
Valve Cover Shield
Box Cover
Wire Harness
Switch
Plate
Blue
Power
Cord
Red
Switch
Wiring Routing
Hole in Baffle
Blower Bracket
Assembly
Screw
Baffle
3. Note the wire locations on back of AUTO/OFF/ON switch.
The terminals on back of switch are numbered 1, 2, and 3.
Carefully remove red wire from terminal 3 and blue wire from
terminal 1. Black wire can remain on middle terminal 2 (see
Figure 23).
4. Carefully disconnect green and white wires at their insulated
connectors (see Figure 24).
5. In top of the fireplace cabinet, locate the four mounting holes
on the outer casing. Align these four holes with those on the
blower bracket assembly. Attach blower bracket assembly to
the outer casing with 4 #10 screws provided (see Figure 23).
6. Route the wire harness through the hole in left side of baffle.
Pull wire harness through lower opening above where the
valve shield was removed. (see Figure 23).
Black
Blower
Mounting
Holes
Red
Red
Fan Switch
(Auto/Off/On)
Blue
Blue
Thermostat
Switch
(N.O.)
Green
White
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
3
Auto
Figure 24 - Wiring Diagram For Blower Accessory Standard
Installation
INSTALLATION
Installing Blower Accessory GA3450T in Thermostat-Controlled Models (Cont.)