Checking gas connections, Connecting to gas supply, Warning – Desa 101811-01C.pdf User Manual

Page 15: Caution, Continued

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15

101811

IMPORTANT:

Hold the pressure regulator with wrench when connecting it to gas

piping and/or fittings.

Pressure
Regulator

Tee Joint

Reducer
Bushing to
1/8" NPT

1/8" NPT
Plug Tap

Test

Gauge

Connection *

Tee Joint

Pipe

Nipple

Cap

Heater
Cabinet

1/2" NPT
Pipe Nipple

CHECKING

GAS

CONNECTIONS

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

Ground Joint
Union

Note: Burner bracket
not shown for clarity

WARNING ICON

G 001

WARNING

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

WARNING ICON

G 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.

WARNING ICON

G 001

CAUTION

Make sure external regulator has been installed between propane
supply and heater. See guidelines under

Connecting to Gas Sup-

ply, page 14.

Sediment

Trap

Manual
Shutoff
Valve *

From

External Regulator

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

Pressure)

3" Minimum

Figure 14 - 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 Accessories, page 30.

CONNECTING

TO GAS

SUPPLY

Continued

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