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INSTALLATION
Continued
9. Install the switch plate on the valve cover shield with 2 #10
screws provided (see Figure 19). Reinstall the valve cover
shield. Route power cord out of the cabinet by inserting it
through the bushing on the outer casing (see Figure 18, page
12). Plug fan kit into 120-Volt grounded power supply and test
operation. Note: When switch is in the AUTO position, the
fan will start after the heater has run for a few moments. The
fan will continue to run for several moments after the heater
has been turned off. When switch is in the ON position, the
fan will run until turned to OFF. Reinstall upper louver assem-
bly and hood if previously removed, (see Figure 16, page 11).
Close lower louver door.
Switch
Plate
Figure 19 - Installing Switch Plate to Valve Cover Shield
For Built-In Installation
WARNING: A licensed electrician must connect
the wiring harness to electrical supply following all
local codes. Electrician must provide a clamp on the
box cover to secure the wiring. Wiring should be
routed through the bushing in the hole on the outer
casing of heater.
Follow instructions in Removing Valve Cover Shield, page 12, then
1. Install a snap bushing found in hardware kit into one of the
holes found on rear of valve cover shield. The other hole is for
a strain relief clamp (not supplied) to secure incoming electri-
cal supply.
2. Follow steps 2 through 6 in Installing Blower Assembly, begin-
ning on page 12. Also remove black wire from middle switch
terminal 2.
3.
Remove black plastic strain relief and power cord from switch
plate. The power cord supplied will not be used in built-in in-
stallations. Pop in the plastic snap bushing found in hardware
kit into the hole left by supply cord/strain relief.
4. A licensed electrician must follow the wiring diagram to con-
nect incoming electrical supply to fan kit wiring harness (see
Figure 20).
For more information, visit www.desatech.com
For more information, visit www.desatech.com
111044-01C
Valve Cover
Shield
Screw
Installing Blower Accessory - GA3450T (Cont.)
5. Plug power cord to the outlet receptacle (not provided) as shown
in Figure 21. Wind the extra cable in power cord and and tie it up
with the plastic wire strap (see Figure 21). Set the cable bundle
between the burner bracket and outer casing, away from the burner.
6. Reinstall valve cover shield.
7. Test to make sure the blower is working properly.
8.
Reinstall upper louver assembly and hood if previously removed,
(see Figure 16, page 11). Close lower louver door.
110/115
V.A.C.
Figure 20 - Wiring Diagram For Blower Accessory Built-In
Installation
Blower Bracket
Assembly
Screw
Switch
Power
Cord
3
2
1
Red
Blue
Switch
Plate
Plastic
Wire Strap
Valve
Cover
Box Cover
Shield
Clamp Connector
(not included)
Figure 21 - Installing Blower Bracket Assembly
INSTALLATION
Fan Switch
(Auto/Off/On)
Auto
1
2
Off
3
Thermostat
Blue
Switch
On
(N.O.)
Red
Black
Red
White
White
Green
Green
Wire
Harness
Outlet
Receptacle
Wire
Harness
13
13
Blue
Blower
Motor
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