Desa FA-2B Operating, Natural Gas Heater, Installation, Continued, WARNING If you do not fol

NATURAL GAS HEATER

INSTALLATION

Continued

CHECKING GAS

CONNECTIONS

WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 K Pa)

1.Disconnect appliance with its appliance main gas valve (control valve) and equip- ment shutoff valve from gas supply pip- ing system. Pressures in excess of 1/2 psig will damage heater regulator.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

4.Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check re- connected fittings for leaks.

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

1.Close equipment shutoff valve (see Fig- ure 13).

2.Pressurize supply piping system by either using compressed air or open- ing main gas valve located on or near gas meter.

3. Check all joints from gas meter to			OPERATING
	equipment shutoff valve (see Figure		HEATER
	14). Apply mixture of liquid soap and
	water to gas joints. Bubbles forming
	show a leak.		FOR YOUR SAFETY
4.	Correct all leaks at once.
			READ BEFORE
Pressure Testing Heater Gas			LIGHTING
Connections
1. Open equipment shutoff valve (see Fig-			WARNING: If you do not fol-
	ure 13).		low these instructions exactly, a
2. Open main gas valve located on or near			fire or explosion may result caus-
	gas meter.		ing property damage, personal
3. Make sure control knob of heater is in			injury or loss of life.
	the OFF position.		A. This appliance has a pilot which must
4.	Check all joints from equipment shutoff
			be lighted by hand. When lighting the
	valve to control valve (see Figure 14).
			pilot, follow these instructions exactly.
	Apply mixture of liquid soap and water to
			B. BEFORE LIGHTING smell all
	gas joints. Bubbles forming show a leak.
5.	Correct all leaks at once.		around the appliance area for gas. Be
			sure to smell next to the floor because
6. Light heater (see Operating Heater,
			some gas is heavier than air and will
	pages 10 and 11). Check the rest of the		settle on the floor.
	internal joints for leaks.		WHAT TO DO IF YOU SMELL
7. Turn off heater (see To Turn Off Gas to
			GAS
	Appliance, page 11).		• Do not try to light any appliance.
8.	Replace front panel.		• Do not touch any electric switch; do
			not use any phone in your building.
			• Immediately call your gas supplier
Equipment		Open	from a neighbor’s phone. Follow
Shutoff Valve			the gas supplier’s instructions.
			• If you cannot reach your gas sup-
			plier, call the fire department.
			C. Use only your hand to push in or turn
		Closed	the gas control knob. Never use tools.
			If the knob will not push in or turn
			by hand, don’t try to repair it, call a
Figure 13 - Equipment Shutoff Valve			qualified service technician or gas
		Control	supplier. Force or attempted repair
			may result in a fire or explosion.
		Valve
		Location	D. Do not use this appliance if any part
			has been under water. Immediately
			call a qualified service technician to
	Gas Meter		inspect the appliance and to replace
			any part of the control system and
			any gas control which has been un-
			der water.
		Equipment
		Shutoff
		Valve
Figure 14 - Checking Gas Joints

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