Procom MN180HPA Owner's Operation And Installation Manual page 14

OPERATING YOUR HEATER
■THERMOSTATB
CONTROL OPERATION
The thermostatic control used on
these Models differs from standard
thermostats.Standard thermostats
simply turn on and off the burner.
The thermostat used on this heater
senses the room temperature. At
times the room may exceed the set
temperature. If so, the burner will
shut off. The burner will cycle back
on when room temperature drops
below the set temperature. The
control knob can be set to any heat
level between HI and LO.
NOTE: The thermostat sensing bulb
measures the temperature of air near
the heater cabinet. This may not
always agree with room temperature
(depending on housing construction,
installation location, room size, open
air temperatures, etc.)Frequent use
of your heater will let you determine
your own comfort levels.
■ MANUAL LIGHTING®
PROCEDURE
1. Follow steps 1 through 5
under Lighting Instructions,
page 12.
2. With control knob pressed
in, strike match. Hold match to
pilot until pilot lights.
3. Keep control knob pressed in
for 30 seconds after lighting
pilot after 30 seconds, release
control knob.
INSPECTING BURNER
Check pilot flame pattern and
burner flame pattern often.
PILOT FLAME PATTERN
Figure 22 shows a correct pilot
flame pattern. Figure 23 shows an
incorrect pilot flame pattern. The
incorrect pilot flame is not touching
thermocouple. This will cause the
thermocouple to cool. When the
thermocouple cools, the heater will
shut down. If pilot flame pattern is
incorrect, as shown in Figure 23.
# turn heater off (see To Turn
Off Gas to Appliance, page 11
for non-thermostat models or
page 12 for thermostat models)
® see Troubleshooting, pages 14
through 16.
PRO"COM OWNER'S MAN0AD
INFRARED VENT-FREE GAS SPACE HEATER
Figure 22 - Correct Pilot Flame
Pattern
Figure 23 - Incorrect Pilot Flame
Pattern
BURNER FLAME PATTERN
Figure 24 shows a correct burner
flame pattern. Figure 25 shows an
incorrect burner flame pattern. If
burner flame pattern is incorrect,
as shown in Figure 25.
® turn heater off (sec To Turn Off
Gas to Appliance, page 11 for
non-thermostat models or page
12 for thermostat models)
® see Troubleshooting, pages 14
through 16
Figure 24 - Correct Burner Flame
Figure 25 - Incorrect Burner
Flame Pattern
CLEANING_
A WARNING: Turn off heater
and let cool before servicing.
A
CAUTION: You must keep control
areas, burner, and circulating air
passageways of heater clean. Inspect
these areas of heater before each
use. Have heater Inspected yearly by
a qualified service person. Heater may
need more frequent cleaning due to
excessive lint from carpeting, bedding
material, pet hair, etc.
13
CLEANING ODS/PILOT AND
BURNER
# Use a vacuum cleaner,
pressurized air. or small, soft
bristled brush to clean.
CLEANING BURNER
PILOT AIR INLET HOLE
We recommend that you clean the
unit every 2,500 hours of operation
or every three months. We also
recommend that you keep the burner
tube and pilot assembly clean and
free of dust and din. To clean these
parts we recommend using
compressed air no greater than
30 PSI.
Your local computer store, hardware
store, or home center may carry
compressed air in a can. You can
use a vacuum cleaner in the blow
position. If using compressed air in
a can, please follow the directions
on the can. If you don't follow
directions on the can, you could
damage the pilot assembly.
1. Shut off the unit, including the
pilot. Allow the unit to cool for
at least thirty minutes.
2. Inspect burner, pilot for dust
and dirt.
3. Blow air through the ports/slots
and holes in the burner.
Clean the pilot assembly also. A
yellow tip on the pilot flame
indicates dust and dirt In the pilot
assembly. There is a small pilot air
inlet hole about two inches from
where the pilot flame comes out of
the pilot assembly (see Figure 25).
With the unit off, lightly blow air
through the air inlet hole. You may
blow through a drinking straw if
compressed air is not available.
Pilot Air Inlet
CLEANING HEATER CABINET
Air Passageways
^ Use a vacuum cleaner or
pressurized air to clean.
Exterior
® Use a soft cloth dampened with
a mild soap and water mixture.
Wipe the cabinet to remove dust.
ML062~11