Desa VN1800C Electric Heater User Manual


 
15
100750
IMPORTANT:
Hold pressure regulator with wrench when connecting it to gas piping
and/or fittings.
Tee Joint
Reducer
Bushing to
1/8" NPT
1/8" NPT
Plug Tap
Test
Gauge
Connection *
Sediment
Trap
Tee Joint
Pipe
Nipple
Cap
Manual
Shutoff
Valve *
1/2" NPT
Pipe Nipple
Heater
Cabinet
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 Accessories, page 31.
CHECKING
GAS
CONNECTIONS
Continued
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.
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
WARNING
Test all gas piping and connections for leaks after installing or
servicing. Correct all leaks at once.
3" Minimum
Ground Joint
Union
Pressure
Regulator
Regulator
Bracket
CONNECTING
TO GAS
SUPPLY
Continued
From
Gas Meter
(7" W.C. to 10.5" W.C. Pressure)