Desa MPF18VPA, MPF24VPA CAUTION Do not place, any loose embers around pilot, assembly, Continued

INSTALLATION

Continued

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 8).

2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

Pressure Testing Appliance Gas Connections

1.Open equipment shutoff valve (see Figure 8).

2.Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3.Make sure control knob of appliance is in the OFF position.

4.Check all joints from equipment shutoff valve to gas control (see Figure 9 or 10). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light appliance (see Operating Appliance, page 10) Check all other internal joints for leaks.

3.	Check all joints from gas meter to equipment		7.	Turn off appliance.
	shutoff valve for natural gas or propane/LP		PLACEMENT OF LOOSE EMBERS
	supply to equipment shutoff valve for propane/
	LP (see Figure 9 or 10). Apply noncorrosive
	leak detection fluid to all joints. Bubbles form-			CAUTION: Do not place
	ing show a leak.		any loose embers around pilot
	Equipment	Open
			assembly.
	Shutoff
	Valve		Two bags of loose embers are provided with this
			unit. For this installation use the embers that are
		Closed	approximately 1" square in size. If needed, larger
	Figure 8 - Equipment Shutoff Valve		embers can be broken to size. These embers aid in
			concealing the burner pan, directing flames through
Propane/LP		Equipment	the ember bed, quiet operation of the unit and gives
Supply Tank		Shutoff Valve	a natural random flame pattern.
			Place embers as follows:
			1.	Place embers around the center ember bed or
				ember pod.
			2.	Place individual embers on their edge (not flat)
				along the top of the burner pan. This aids in di-
				recting flames from the burner through the ember
				bed. Note: Too many embers or embers placed
		Control Valve		flat along burner pan can suppress the flames.
		Location	3.	When unit is lit, check flames for random appear-
	Figure 9 - Checking Gas Joints			ance and ember bed glowing red-orange in color
	(Propane/LP Gas Only)			(see Burner Flame Pattern, page 11). If this is
				not happening, either add, remove or reposition
		Equipment
				loose embers. IMPORTANT: Turn unit off and
		Shutoff Valve
				let cool before repositioning loose embers.

Gas Meter

Control Valve Location

Figure 11 - Placement of Embers

Figure 10 - Checking Gas Joints

(Natural Gas Only)

114925-01C www.desatech.com 9