17
INSTALLATION
Install sediment trap in supply line as shown
(see Fig. 12)
. Place sediment trap where it
is within reach for cleaning. Place sediment
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into heater controls. If sediment trap is not
installed or is installed wrong, the heater may
not run properly.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
The appliance and the appliance main gas valve must be disconnected from the gas supply piping
system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).
Pressure Testing Gas Supply Equal To or less than 1/2 PSIG (3.5 kPa)
The appliance must be isolated from the gas supply piping system by closing its equipment shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psi (3.5 kPa).
Leak Testing Heater Gas Internal Connections
1.
Open equipment shutoff valve
(see Fig. 13)
.
2.
Make sure control knob of the heater is in the
OFF position.
3.
Open gas supply tank valve (LP systems).
4.
Check all joints from equipment shutoff valve to
control valve. Apply 50/50 mixture of liquid soap and
water to gas joints. If bubbles form, there may be a
leak.
5.
Light heater (see “Lighting Instructions” on
19). Check all other internal joints for leaks.
6.
Turn off heater (see “To Turn Off Gas to Appliance”
on page 20).
Closed
Open
Equipment
Shut off Valve
Fig. 13: Equipment Shutoff Valve
Fig. 12: Gas Connection
Sediment
Trap
Test
Gauge
Connection
Tee Joint
1/8 in.
Reducer
Bushing
1/8 in. NPT
Plug tap
3/8 in. NPT
Pipe Nipple
Ground Joint
Union
Equipment
Shut off
Valve
Tee Joint
Pipe Nipple
Gap
3 in. Minimum
Inlet Pipe From
Gas Meter
WARNING
: Test all gas piping and connections for leaks after installing or servicing. Correct all
leaks immediately.
WARNING:
Never use an open flame to check for a leak. Apply a 50/50 mixture of liquid soap
and water to all joints. If bubbles form, there may be a leak. Correct all leaks immediately.
CHECKING GAS CONNECTIONS
