Procom ML150TPA - Manual (Page 10)

10
Figure 15 -Equipment Shutoff Valve
INSTALLATION
CHECKING GAS
CONNECTIONS
WARNING: Test all gas
piping and connections for leaks
after installing or servicing. Correct
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.
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of
1/2 PSIG (3.5 K Pa)
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
s ys t e m b y e i t h e r u s i n g
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 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 K Pa)
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 16). 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 control 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 10 and 11 for
non-thermostat models or
page 12 and 13 for thermostat
models). Check the rest of the
internal joints for leaks.
7. Turn off heater (see To Turn Off
Gas to Appliance, page 11 for
non-thermostat models or page
12 for thermostat models).
8. Replace lower front panel.
NON-THERMOSTAT MODELS
n
FOR YOUR SAFETY
n
READ BEFORE LIGHTING
WARNING: If you do not
follow these instructions exactly,
a fire or explosion may result
in causing property damage,
personal injury or loss of life.
A. When lighting the pilot, follow
these instructions exactly.
B. BEFORE LIGHTING smell all
around the appliance area for
gas. Be sure to smell next to
the floor because some gas is
heavier than air and will settle
on the floor .
WHAT TO DO IF YOU SMELL GAS
l
Do not try to light any appliance.
l Do not touch any electric switch;
do not use any phone in your
building.
l
Immediately call your gas
supplier from a neighbor’s
phone. Follow the gas
supplier’s instructions.
l
If you cannot reach your
gas supplier, call the fire
department.
C. Use only your hand to push in
or turn the gas control knob.
Never use tools. If the knob
will not push in or turn by
hand, don’t try to repair it, call
a qualified service technician or
gas supplier. Force or attempted
repair may result in a fire or
explosion.
D. Do not use this appliance if any
part has been under w ater.
Immediately call a qualified
service technician to inspect
the appliance and to replace
any part of the control system
and any gas control which has
been under water.
Figure 16 -Checking Gas Joints
OPERATING YOUR HEATER