Desa MPF24VNA Continued, Placement Of Loose Embers, Pressure Testing Appliance Gas Connections

INSTALLATION

Continued

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.

3.Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/ LP (see Figure 9 or 10). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak.

4.Correct all leaks at once.

Equipment	Open
Shutoff
Valve

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.

7.Turn off appliance.

PLACEMENT OF LOOSE EMBERS

CAUTION: Do not place any loose embers around pilot assembly.

		Two bags of loose embers are provided with this
	Closed	unit. For this installation use the embers that are
Figure 8 - Equipment Shutoff Valve		approximately 1" square in size. If needed, larger
		embers can be broken to size. These embers aid
Propane/LP	Equipment	in concealing the burner pan, directing flames
Supply Tank	Shutoff Valve	through the ember bed, quiet operation of the unit
		and gives 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
			directing flames from the burner through the
	Control Valve		ember bed.
	Location		Note: Too many embers or embers placed flat
Figure 9 - Checking Gas Joints			along burner pan can suppress the flames.
(Propane/LP Gas Only)		3.	When unit is lit, check flames for random appear-
	Equipment		ance and ember bed glowing red-orange in color
			(see Burner Flame Pattern, page 11). If this is
	Shutoff Valve
			not happening, either add, remove or reposition
			loose embers. IMPORTANT: Turn unit off and
Gas Meter			let cool before repositioning loose embers.

Control Valve

Location

Figure 10 - Checking Gas Joints

(Natural Gas Only)

Figure 11 - Placement of Embers

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