Vanguard 0 Operating And Installation Manual page 14

INSTALLATION
Continued
Shoulder
Screw
Valve
Cover
Remove
Shield
Screw
2
Snap Bushings
Figure 16 - Removing Valve Cover Shield
Installing Blower Assembly
CAUTION: Label all wires
prior to disconnection when ser-
vicing controls. Wiring errors
can cause improper and dan-
gerous operation.
CAUTION: Verify proper op-
eration after servicing.
Note: If you are using a mantel with your heater,
use the following instructions. If your heater is
built-in, see For Built-In Installation on page 15.
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 con-
nected to the terminals on the blower bracket
assembly.
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 1 and blue wire
from terminal 3. Black wire can remain on
middle terminal 2 (see Figure 17).
4. Carefully disconnect green and white wires
at their insulated connectors.
5. In top of the heater cabinet, locate the four
mounting holes on the outer casing. Align
these four holes with those on the blower
bracket assembly. Attach blower bracket as-
14
Branch Support
1
Bottom Louver
Assembly
www.desatech.com
sembly to the outer casing with 4 #10 screws
provided (see Figure 17).
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 re-
moved. (see Figure 17).
7. Insert the 4 wire harness into one of the round
holes in the rear of the valve cover shield and
through the rectangular hole in the front of
shield (see Figure 17).
8. Reconnect red wire to switch position 3. Re-
connect blue wire to switch position 1. Re-
connect green and white wires.
9. Install the switch plate on the valve cover
shield with 2 #10 screws provided (see Fig-
ure 17). Reinstall the valve cover shield. Route
power cord out of the cabinet by inserting it
through the bushing on the outer casing (see
Figure 17). 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 posi-
tion, the fan will run until turned to OFF. Re-
install upper louver assembly and hood if pre-
viously removed, (see Figure 15, page 13).
Close lower louver door.
Blower Bracket
Assembly
Screw
Switch
Power
Cord
3
2
1
Red
Switch
Plate
Blue
Box Cover
Valve Cover
Shield
Figure 17 - Installing Blower Bracket
Assembly
Wire
Wiring Routing
Harness
Hole in Baffle
Baffle
Wire
Harness
113111-01A