Desa Tech CGG3630P, CGG2618P Checking GAS Connections, Pressure Testing Gas Supply Piping System

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 mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and heater. See guidelines under Con- necting to Gas Supply, page 12.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Fig- ure 15).

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

3.Check all joints from propane/LP sup- ply tank to manual shutoff valve (see Figure 16). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Manual	Open
Shutoff
Valve
	O
	Closed
	PO

Figure 15 - Manual Shutoff Valve

Pressure Testing Heater Gas Connections

1.Open manual shutoff valve (see Fig- ure 15).

2.Open propane/LP supply tank valve.

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

4.Check all joints from manual shutoff valve to thermostat gas valve (thermo- stat-controlled models) or control valve (variably-controlled models) (see Fig- ure 16). Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 15 and 16 [Thermostat- Controlled Models] or pages 16 and 17 [Variable Manually- Controlled Models]). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 16 [Thermostat-Con- trolled Models] or page 17

[Variable Manually-Controlled Models]).

1.	Disconnect heater and its individual
	manual shutoff valve from gas supply
	piping system. Pressures in excess of
	1/2 psig will damage heater regulator.
2.	Cap off open end of gas pipe where
	manual shutoff valve was connected.
3.	Pressurize supply piping system by ei-
	ther using compressed air or opening
	propane/LP supply tank valve.
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 manual shutoff
	valve to gas supply. Check re-

Propane/LP Supply Tank

Manual

Shutoff

Valve

Thermostat Gas Valve or

Control Valve Location

connected fittings for leaks.

Figure 16 - Checking Gas Joints

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