Desa VM42, M36 installation manual Ember and PAN Material Placement, Overtighten

INSTALLATION

Gas Line Hook-Up (Cont.) Ember and Pan Material Placement

13

INSTALLATION

Continued

DESA recommends that a black iron gas line be routed from the gas source, through a sediment trap (shown in Figure 20), and into the appliance, Once connected through the appliance, a flexible gas line may be used for ease of installation to gas control valve (see Figure 21).

Before connecting the black iron gas line to the inside of the appliance a sediment trap must be included outside the appliance between the gas line and the gas shutoff valve. It must extend down three (3) inches beyond the center of the pipe. Prepare incoming black iron gas line with teflon tape or pipe joint compound (Check with local building codes).

CAUTION: Compounds used on threaded joints of gas piping shall be resistant to the action of Liquefied Petroleum (LP or propane), and should be applied lightly to ensure excess sealant does not enter the gas line.

WARNING: All gas piping and connections must be tested for leaks after the installation is completed.

After ensuring that the gas valve is on, apply a commer- cial leak detection solution to all connections and joints. If bubbles appear, leaks can be detected and corrected.

Do not use an open flame for leak testing and do not operate any appliance if a leak is detected.

Complete your gas installation by connecting incoming gas line with flexible gas line. Secure tightly with wrench but DO NOT

OVERTIGHTEN.

Incoming 1/2" Gas Line

Permitted by Local Codes

Sediment Trap

(Not Supplied)		Wall
	Side
3" Min.		Appliance
(76mm)	Of

EMBER AND PAN MATERIAL PLACEMENT

1.Open the bag(s) of vermiculite and fill the entire burner pan until the burner tube is completely covered (see Figure 22).

2.Smooth the pan material just even with edges of the burner pan.

3.Remove the ember material from the bag and flatten small amounts into quarter size pieces and lay on top of the surface of the pan material (see Figure 23).

4.Place just enough to cover the entire surface and leave about a 1/2 inch gap under the lower grate members to allow air to flow (see Figure 24).

Grate	Vermiculite	Burner Pan
	(Pan Material)

Figure 22 - Fill Entire Burner Pan with Vermiculite

	Ember	Vermiculite
Grate	Material		Burner Pan
		(Pan Material)

Figure 23 - Ember Material on Surface of Pan Material (Vermiculite)

Figure 20 - Sediment Trap

		Red Surface Indicates For
		Propane/LP Use Only		Pilot Adj
		Flexible Gas Line
Gas Shutoff
		Do NOT Kink
Valve
			ON
			T
			O
			L
			I
			P
			OFF
	Note:		IN OUT
1/2" NPT	1) Wire Connections			Outlet
		Not Shown for Clarity
Incoming				Pressure
	2) * 1/8" NPT Plugged		Inlet Pressure
Gas Line				Tap
		Tapping
			Tap

Pan and Ember

Grate Material

0.5"

0.5"

Burner Pan

Figure 24 - Pan and Ember Material Clearances

Figure 21 - Connecting Flexible Gas Line to Millivolt Valve

For more information, visit www.desatech.com

108795-01E