Vanguard Heating VMH10TNB installation manual For Built-In Installation, Extension Cord

OWNER’S MANUAL

INSTALLATION

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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

	Fan Switch
	(Auto/Off/On)
		1 Auto
	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

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.

on the outer casing of heater.

Follow instructions Removing Valve Cover Shield (page 11), then

1.Install a snap bushing found in hard- ware 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 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).

5.Plug power cord to the outlet receptacle (not provided) as shown in figure 21. Wind the extra cable in power cord and tie it up with the plastic wire strap (see Figure 21). Set the cable bundle be- tween the burner bracket and outer cas- ing, 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.

Blower Bracket

Assembly

Screw

Switch		Wire
		Harness
		Power
		Cord	Outlet
3			Receptacle
2
1
Blue	Red
Switch Plate
Plastic Wire
Strap
Valve
Cover
Shield	Box Cover			Wire
		Clamp Connector		Harness
		(not included)

Figure 21 - Installing Blower Bracket Assembly

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