9
Operating Instructions and Owner’s Manual
Mr. Heater | Unvented Natural Gas Fired Room Heater
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
OPERATION
Low Pressure
Test Pressure Equal To or Less Than ½
psig (3.5 kPa)
1. 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 ½ psi (3.5 kPa).
See Figure 13.
2. Pressurize supply piping system
by either using compressed air or
opening propane/LP supply valve.
3. Check all joints from the propane/
LP supply valve to equipment shutoff
valve. See Figure 14. Apply mixture
of liquid soap and water to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
5. Depressurize and relieve pressure from
supply piping system.
Pressure Testing Heater Gas
Connections
1. Make sure that the heater supply
piping system is connected and has
been leak tested as described above.
2. Make sure control knob of heater is in
OFF position.
3. Open equipment shutoff valve. See
Figure 13.
4. Open propane/LP supply valve.
5. Check all joints from equipment
shutoff valve to control valve. See
Figure 14. Apply mixture of liquid
soap and water to gas joints. Bubbles
forming show a leak.
6. Correct all leaks at once.
7. Light heater. See Operating Your
Heater.
8. Turn off heater. See To Turn OFF Gas
to Appliance.
9. Replace lower front panel.
OPERATING YOUR HEATER
For Your Safety Read Before
Lighting
A. This appliance has a pilot that must be
lit by hand. 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
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
Figure 13
Figure 14
Equipment
Shutoff
Valve
Open
Closed
To gas meter
Control Valve
Equipment Shutoff Valve
• Immediately call you gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you can not 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 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 underwater. Immediately call
a qualified service technician to inspect
the appliance and to replace any part
of the control system which has been
under water.
Lighting Instructions
1. STOP!
Read the all safety information
included with and on the side of
heater.
2. Check that gas supply to heater is on.
3. Push in gas control knob and slightly
turn clockwise
to the OFF position
See Figure 15.
Note:
Knob cannot be turned from
PILOT to OFF unless knob is pushed in
slightly. Do not force.
4. Wait five (5) minutes to clear out any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP!
Follow “B” in the safety information
above. If you do not smell gas, go to
the next step.
5. Push in gas control knob slightly and
turn counterclockwise
to PILOT
and depress for five (5) seconds.
Note:
The first time that the heater
is operated after connecting the gas
supply, the control knob should be
depressed for about 30 seconds. This
will allow air to bleed from the gas
system.
6. Push in control knob and rotate
control knob back to OFF position
then rotate counterclockwise
to
PILOT position. This will light pilot. If
needed gently keep rotating control
knob back and forth while depressed
until pilot lights.
7. Keep control knob depressed in for
ten (10) seconds after lighting pilot.
If pilot goes out, repeat steps 4, 5, 6
and 7.
WARNING:
If you do not follow
these instructions exactly, a fire or
explosion may result causing property
damage, personal injury or loss of life.
Figure 15
Control Knob
HI
LO
OFF
PILOT
CAUTION:
Do not try to adjust
heating level by using equipment
shutoff valve.
