CONNECTING TO GAS SUPPLY

Continued

CHECKING GAS CONNECTIONS

14

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.

 

Pressure

 

 

Regulator

3/8" NPT

 

 

 

Pipe Nipple

 

 

 

 

Heater

 

 

Cabinet

 

Ground Joint Union

 

 

 

 

Tee Joint

 

 

Manual Shutoff Valve *

Reducer

 

Test

 

 

From External

Bushing to

Gauge

1/8" NPT

Connection *

Regulator

 

 

 

 

(11" W.C. to 14" W.C.

1/8" NPT

 

 

Pressure)

Plug Tap

 

 

 

Tee

 

 

3" Minimum

Joint

 

 

Pipe

Sediment Trap

 

 

Nipple

 

 

Cap

Figure 13 - Gas Connection

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessory, page 25.

WARNING

WARNING ICON

G 001

Test all gas piping and connections for leaks after installation or servicing. Correct all leaks at once.

WARNING

WARNING ICON

G 001

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

WARNING ICON

G 001

Make sure external regulator has been installed between propane supply and heater. See guidelines under Connecting to Gas Sup- ply, page 13.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG

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.

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Image 14
Desa VP1000BA, VP600B Connecting to GAS Supply Checking GAS Connections, Pressure Testing GAS Supply Piping System