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119345-01A
13
INSTALLATION
Continued
CAUTION: For propane/LP
gas, make sure external regula-
tor has been installed between
propane/LP supply and heater.
See guidelines under
Connect-
ing to Gas Supply
, page 12.
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 equip
-
ment 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 equip
-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
4. Check all joints of gas supply piping sys
-
tem. Apply a noncorrosive leak detection
fluid to all joints. Bubbles forming show a
leak.
5. Correct all leaks at once.
6. Reconnect heater 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
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
3. Check all joints from gas meter for natural
gas (see Figure 16) or propane/LP supply
tank for propane/LP gas, to equipment
shutoff valve (see Figure 17). Apply a
noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig
-
ure 15).
2. For natural gas open main gas valve
located on or near gas meter. For pro
-
pane/LP gas 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 or
17). Apply a noncorrosive leak detection fluid
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see
Operating Heater
, page
14). Check all other internal joints for leaks.
7. Turn off heater (see
To Turn Off Gas to
Appliance
, page 15).
8. Replace front panel.
Figure 17 - Checking Gas Joints for
Propane/LP Gas
Equipment
Shutoff Valve
Propane/LP
Supply
Tank
Gas Valve
Figure 16 - Checking Gas Joints for
Natural Gas
Gas Meter
Gas Valve
Equipment
Shutoff Valve
