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107068-01K
15
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an open
flame to check for a leak. Apply a
commercial leak detection solution
to all joints. Bubbles forming show
a leak. Correct all leaks at once.
CAUTION: For propane/LP
units, make sure external regula-
tor has been installed between
propane/LP supply and heater.
See guidelines under
Connect-
ing to Gas Supply
, page 13.
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. Pressures in ex
-
cess 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
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 system.
Apply a commercial leak detection solution
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.
3. Check all joints from gas meter (natural gas) or
propane/LP supply to equipment shutoff valve
(see Figure 16 or 17). Apply a commercial
leak detection solution to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 17 - Checking Gas Joints
(Propane/LP Gas Only)
Propane/LP
Supply Tank
Figure 16 - Checking Gas Joints (Natural
Gas Only)
Gas
Meter
Equipment Shutoff Valve
Control Valve Location
Equipment Shutoff Valve
Control Valve Location
pRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 15).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of heater is in the OFF
position.
4. Check all joints from gas meter (natural gas) or
propane/LP supply to equipment shutoff valve
(see Figure 16 or 17). Apply a commercial
leak detection solution to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light heater (see
Operating Heater
, page 17).
Check all other internal joints for leaks.
7. Turn off heater (see
To Turn Off Gas to Appli-
ance
, page 18).