Desa H) AND VM42(B, M36P, M42P Wall Switch Installation, Installing Receiver, Control Unit

10

INSTALLATION

WALL SWITCH INSTALLATION

The installation of a wall switch allows you to activate the gas control valve without the normal household electricity since the valve operates on millivolt current supplied by the heat generated by the thermopile. To install the wall switch:

1.	Remove the front refractory access panel by lifting up and
	angling out of the firebox opening (see Figure 13).
2.	Use wire and connectors provided. Attach red wire to terminal

4.Connect wires to control circuit. Connect white wire to termi- nal marked TH/TP on control valve. Connect red wire to male blade connector provided at open end of safety circuit wiring (see Wiring Diagram, page 18).

5.Locate the battery clip mounted on the back of the receiver (see Figure 16).

6.Slide 9-volt battery (not included) through the clip. Note: Only use alkaline battery.

7.Attach the terminal wires to the battery (see Figure 16).

8.Replace refractory brick access panel.

marked TH/TP on control valve. Attach white wire to blade

connector on open end of safety circuit wiring (see Wiring

Diagram, page 18).

Note: If any of the original wire from the unit control must be re- placed, use the same type or a higher rated wire (25 ft. maximum length).

WARNING: Do not wire remote wall switch to main power supply (Standard 120v household current).

3. Locate wall switch in a convenient location.

IN

	ON
LO	T
I
P
	FFO

IN OUT

To Safety Circuit	Route Millivolt	Wall Switch
	Wires (Supplied)	(Supplied)
	Through Gas Line
	Conduit Sleeve
	To Thermopile
TH
TP
THTP
		(Back View

4.	After wire connections are complete, replace refractory access
	panel.

Note:Ifanyoftheoriginalwireassuppliedmustbereplaced,use18AWG TYPE CL2 (UL) 105 C (25 ft. length MAXIMUM) or equivalent.

Figure 13 - Removing Front Refractory Access Panel

OPTIONAL WIRELESS HAND-HELD REMOTE CONTROL INSTALLATION

Note: If using optional wireless hand-held remote control, the wall switch is no longer operational.

Installing Receiver

1.Remove the front refractory access panel by lifting up and angling out of the firebox opening (see Figure 13) to expose controls.

2.Disconnect wall switch wires from TH and TH/TP terminals on control valve (see Figure 14).

3.Install remote receiver unit onto mounting bracket using the two plastic mounting clips (see Figure 15).

Figure 14 - Wall Switch Wiring Diagram

		9-Volt Battery
Receiver	Battery
	Clip
Plastic	Terminal
Mounting
	Wires
Clips
Mounting Bracket		Receiver
Figure 15 - Installing Remote	Figure 16	- Installing Battery
Receiver (Shown from Rear of	in Receiver
Mounting Bracket)
Installing 9-Volt Battery in Hand-Held Remote
Control Unit

1.Remove battery cover on back of remote control unit.

2.Attach terminal wires to the battery (not included). Place battery into the battery housing. Note: Only use alkaline battery.

3.Replace battery cover onto remote control unit.

Battery Cover	Remote Control Unit
Terminal Wires
9-Volt
Battery
	Battery
	Housing
Figure 17 - Installing Battery in Hand-Held Remote Control Unit

For more information, visit www.desatech.com

108795-01M