Checking GAS Connections | Desa LFP33NR specification

LFP33NR

UNVENTED NATURAL GAS FIREPLACE

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

1. Disconnect fireplace and its individual

manual shutoff valve from gas supply

piping system. Pressures in excess of 1/2

psig will damage fireplace gas regulator.

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Fig- ure 19).

2.Pressurize supply piping system by ei- ther using compressed air or opening main gas valve located on or near gas meter.

3.Check all joints from gas meter to manual shutoff valve (see Figure 20). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Open

Manual

Shutoff

Valve

Closed

Figure 19 - Manual Shutoff Valve

Pressure Testing Fireplace Gas Connections

1.Open manual shutoff valve (see Fig- ure 19).

2.Open main gas valve located on or near gas meter.

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

4.Check all joints from manual shutoff valve to thermostat gas valve (see Fig- ure 20). Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fire- place, pages 16 and 17). Check all other internal joints for leaks.

7.Turn off fireplace (see To Turn Off Gas to Appliance, page 17).

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
	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 fireplace and manual shutoff
	valve to gas supply. Check reconnected
	fittings for leaks.

Manual Gas Valve

Figure 20 - Checking Gas Joints