Desa S39PT installation manual Checking GAS Connections, Pressure Testing Heater Gas Connections

OWNER’S MANUAL

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 noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure exter-

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

1.Close equipment shutoff valve (see Fig- ure 8).

2.Pressurize supply piping system by either using compressed air or opening propane/ LP supply tank valve.

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

4.Correct all leaks at once.

Open

Equipment

Shutoff

Valve

CO losed

POS

Pressure Testing Heater Gas Connections

1.Open equipment shutoff valve (see Fig- ure 8).

2.Open propane/LP supply tank valve.

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

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

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 13 and 14). Check all other in- ternal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 14).

nal regulator has been installed between propane/LP supply and heater. See guidelines under Con- necting to Gas Supply, page 8.

Figure 8- Equipment Shutoff Valve

Equipment Shutoff Valve

Pressure Testing Gas Supply Piping System

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

1.	Disconnect heater with its appliance
	main gas valve (control valve) and
	equipment shutoff valve from gas sup-
	ply piping 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 ei-
	ther using compressed air or opening

Propane/LP Supply Tank

Control Valve Location

	propane/LP supply tank valve.
4.	Check all joints of gas supply piping
	system. Apply a noncorrosive leak de-
	tection fluid to all 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.

Figure 9 - Checking Gas Joints

Continued

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