Desa RP30D - Manual (Page 9)

9 103569
OWNER’S MANUAL
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. Pur-
chase the optional A.G.A. design certified
manual shutoff valve from your dealer. See
Accessories, page 17.
IMPORTANT: Hold pressure regulator
with wrench when connecting it to gas pip-
ing and/or fittings.
CONNECTING TO
GAS SUPPLY
Continued
Tee Joint
Reducer
Bushing to 1/8"
NPT
1/8" NPT Plug
Tap
Test
Gauge
Connection *
Tee Joint
Pipe Nipple
Cap
Heater
Cabinet
Pressure
Regulator
3/8" NPT
Pipe
Nipple
Ground Joint
Union
Manual
Shutoff
Valve *
Typical Inlet
Pipe From
External Regulator
(11" W.C. to 14"
W.C. Pressure)
3" Minimum Sediment
Trap
CHECKING GAS
CONNECTIONS
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect 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.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
heater. See guidelines under
Con-
necting to Gas Supply.
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 ei-
ther using compressed air or
opening propane/LP supply tank valve.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
Test Pressures Equal To or
Less Than 1/2 PSIG
1. Close manual shutoff valve (see Fig-
ure 14).
Figure 14 - Manual Shutoff Valve
2. Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
ON
POSITION
OFF
POSITION
Manual
Shutoff
Valve
Closed
Open
Note: Burner bracket
not shown for clarity
3. Check all joints from propane/LP sup-
ply tank to manual shutoff valve (see
Figure 15, page 10). Apply mixture of
liquid soap and water to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING
HEATER GAS
CONNECTIONS
1. Open manual shutoff valve (see Fig-
ure 14).
2. Open propane/LP supply tank valve.
3. Make sure control knob of heater is in
the OFF position.
4. Check all joints from manual shutoff
valve to control valve (see Figure 15,
page 10). Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 10 and 11). Check the rest of the
internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 11).
8. Replace front panel.
Continued