OWNER’S MANUAL

INSTALLATION

Continued

For Built-In Installation

WARNING: A licensed elec- trician must connect the wiring harness to electrical supply fol- lowing all local codes. Electri- cian must provide a clamp on the box cover to secure the wir- ing. Wiring should be routed through the bushing in the hole on the outer casing of heater.

Follow instructions Removing Valve Cover Shield (page 11), 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 electrical supply.

2.

Follow steps 2 through 6 in Installing

 

Blower Assembly, pages 11 and 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 installations. Pop in the plastic

Fan Switch

(Auto/Off/On)

1Auto

 

Off

2

 

 

 

 

 

 

 

 

 

 

 

3

Blue

 

Thermostat

 

 

 

On

 

 

 

Switch

 

 

 

 

 

 

(N.O.)

110/115

 

 

Red

 

 

 

 

Blue

V.A.C.

 

 

 

 

Blower

 

Black

 

 

 

 

 

 

 

 

Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Red

 

 

White

 

 

 

 

 

 

White

 

 

Green

 

 

 

 

 

 

Green

Figure 20 - Wiring Diagram For Blower Accessory Built-In Installation

Blower Bracket

Assembly

Screw

Switch

Wire

 

Harness

 

Power

 

Cord Outlet

3

Receptacle

2

 

1

 

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 connect incoming

electrical supply to fan kit wiring har-

ness (see Figure 20).

Blue

Switch

Plate

Plastic

Wire Strap

Red

5.

Plug power cord to the outlet receptacle

 

(not provided) as shown in figure 19.

 

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 work-

 

ing properly.

8.

Reinstall upper louver assembly and

 

hood if previously removed, (see Figure

 

16, page 11). Close lower louver door.

Valve

 

 

Cover

 

Wire

Shield

Box Cover

 

Clamp Connector

Harness

 

(not included)

 

Figure 21 - Installing Blower Bracket Assembly

Extension Cord

Use extension cord if needed. The cord must have a three-prong, grounding plug and a three-hole receptacle. Make sure cord is in good shape. It must be heavy enough to carry the current needed. An undersized cord will cause a drop in line voltage. This will result in loss of power and overheating. Use a No. 16 AWG cord for lengths less than 50 feet.

Continued

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Desa VMH26TPB 14 installation manual For Built-In Installation, Extension Cord