FMI FVF24PW, FVF18PW, FVF30PW Checking GAS Connections, Pressure Testing Gas Supply Piping System

FIREPLACE MANUFACTURERS INCORPORATED

UNVENTED PROPANE/LP GAS LOG HEATER

INSTALLATION

Continued

CSA Design-Certified Equipment

Shutoff Valve With 1/8" NPT Tap

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

1.	Close equipment shutoff valve (see
	Figure 15).
2.	Pressurize supply piping system by ei-
	ther using compressed air or opening

Approved Flexible Gas Hose (if allowed by local codes)

Gas Control

	From External
	Regulator (11" W.C.*
	to 14" W.C. Pressure)
	Tee Joint
3" Minimum	Pipe Nipple Sediment
	Trap
	Cap

	propane/LP supply tank valve.
3.	Check all joints from propane/LP sup-
	ply tank to equipment shutoff valve (see
	Figure 16, page 13). Apply noncorro-
	sive leak detection fluid to gas joints.
	Bubbles forming show a leak.
4.	Correct all leaks at once.

Equipment

Shutoff Open

Valve

Figure 14 - Gas Connection

* Minimum inlet pressure for purpose of input adjustment.

Closed

Figure 15 - Equipment Shutoff Valve

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- nal regulator has been installed between propane/LP supply and heater. See guidelines under Con- necting to Gas Supply, page 11.

Pressure Testing Gas Supply Piping System

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

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 ei- ther using compressed air or opening propane/LP supply tank valve.

4.Check all joints of gas supply piping system. Apply noncorrosive leak detec- tion fluid 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.

Pressure Testing Heater Gas Connections

1.Open equipment shutoff valve (see Figure 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 equipment shutoff valve to control valve (see Figure 16, page 13). Apply noncorrosive leak de- tection fluid to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 14 through 16). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 15).

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