Monessen Hearth BTU/Hr, Operation And Installation Manual

Page: 18 / 32

18
49D0090 49D0090
19
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Propane/LP
Supply Tank
Thermostat Gas Valve Location
Equipment Sutoff
Valve
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of
1
/
2
PSIG (3.5 kPa)
1. Disconnect appliance with its appliance main gas valve
(control valve) and equipment 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 equipment shutoff
valve was connected.
3. Pressurize supply piping system by either 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 forming
show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment shutoff valve to gas
supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 15).
2. Pressurize supply piping system by either using compressed air or
opening propane/LP supply tank valve.
3. Check all joints from propane/LP supply tank to equipment shutoff
valve (see Figure 15). 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 equipment shutoff valve (see Figure 15).
2. Open propane/LP supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to thermostat gas
valve (see Figure 16). Apply mixture of liquid soap and water to
gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater
(see Operating Heater, pages 19 through 21) . Check
all other internal joints for leaks.
7. Turn off heater (see “To Turn Off Gas to Heater,” page 19.
8. Replace front panel.
CHECKING GAS CONNECTIONS
INSTALLATION
Test all gas piping and connections
for leaks after installing or servicing.
Correct all leaks at once.
W
ARNING
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.
W
ARNING
Make sure external regulator has
been installed between propane/LP
supply and heater. See guidelines
und
“Connecting to Gas Supply,”
page 15.
CAUTION
Figure 16 - Checking Gas Joints