CONNECTING

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping

and/or fittings.

 

 

 

 

TO GAS

 

 

 

 

 

 

 

 

 

SUPPLY

 

 

 

 

 

Continued

 

 

 

Pressure

 

 

 

 

 

 

 

 

Regulator

 

3/8" NPT

 

 

 

 

 

Pipe Nipple

 

 

 

 

 

 

 

Heater

 

 

 

 

Cabinet

 

 

Ground Joint Union

Tee Joint

 

 

 

 

 

 

 

Manual Shutoff Valve *

Reducer

 

Test

 

 

 

 

From Gas Meter

Bushing to

Gauge

 

1/8" NPT

Connection *

 

(4" W.C. to

 

 

 

1/8" NPT

 

 

 

10.5" W.C. Pressure)

 

 

 

 

Plug Tap

 

 

 

3" Minimum

Tee

 

 

 

 

Joint

 

 

 

 

 

Pipe

Sediment Trap

 

 

Nipple

 

 

 

 

 

Cap

 

 

 

 

Figure 12 - 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.

CHECKING

WARNING ICONG 001 WARNING

GAS

 

Test all gas piping and connections for leaks after installing or

CONNECTIONS

servicing. Correct all leaks at once.

 

 

 

 

 

WARNING ICONG 001 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 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 either using compressed air or opening main gas valve located on or near gas meter.

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Image 14
Desa CGN6L, CGN10L Connecting, To GAS Supply, Checking GAS, Connections, Pressure Testing GAS Supply Piping System