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Checking gas connections, Warning, Caution – Desa VP5A User Manual

Page 10

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10

IMPORTANT:

Hold pressure regulator with wrench when connecting it to gas piping

and/or fittings.

Figure 11 - 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 21.

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

Tee Joint

Reducer
Bushing to
1/8" NPT

1/8" NPT
Plug Tap

Test

Gauge

Connection *

Tee

Joint

Pipe

Nipple

Cap

!

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
SUPPLY, page 9.

Pressure
Regulator

3/8" NPT
Pipe Nipple

Heater
Cabinet

Ground Joint
Union

From External

Regulator

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

Pressure)

Manual
Shutoff
Valve *

3" Minimum

Sediment

Trap