INSTALLING

Continued

CAUTION

Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.

A.G.A. Design-Certified

Manual Shutoff Valve

With 1/8" NPT Tap*

Approved Flexible

Gas Hose (if allowed

Gas by local codes)

Control

3" Minimum

Figure 12 - Gas Connection

From

Gas Meter

(5" W.C.** to

10.5" W.C. Pressure)

Tee Joint

Pipe

Nipple

Cap

Sediment

Trap

16

*Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 29.

**Minimum inlet pressure for purpose of input adjustment.

CHECKING GAS CONNECTIONS

WARNING

Test all gas piping and connections for leaks after installing or servicing. Correct 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 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.

Continued

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Image 16
Desa CGD3924NR installation manual Checking GAS Connections, Gas Connection