Empire Comfort Systems HR10MN User manual

13
INSPECTING BURNER
Figure 23 - Correct Pilot Flame
Pattern
Figure 24 - Incorrect Pilot Flame
Pattern
Figure 26 - Incorrect Burner Flame
Pattern
Figure 25 - Correct Burner Flame
Pattern
ODS/PILOTANDBURNER
 Use a vacuum cleaner, pres-
surized air, or a 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 dirt. To
clean these parts we recommend
using compressed air no greater
than 30 PSl. Your local computer
store, hardware store. or home cen-
ter may carry compressed air in a
can. You can use a vacuum cleaner
in the blow position. If using com-
pressed 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, and pilot for dust
and dirt.
3. Blow air through the ports/slots
and holes in the bumer.
Also clean the pilot assembly. A
yellow tip on the pilot flame indi-
cates 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 27).
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.
Figure 27 - Pilot Air Inlet Hole
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.
Check pilot flame pattern and
burner flame pattern often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot
flame pattern. Figure 24 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 24.
 turn heater off (see To Turn Off
Gas to Appliance. pages 11,12
 see Troubleshooting. pages 14
through 16.
WARNING: turn off heater
and let cool before cleaning.
CAUTION: you must keep control
areas, burner, and circulating air
passageways of heater clean. In-
spect 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.
CLEANING AND
MAINTENANCE
BURNER FLAME PATTERN
Figure 25 shows a correct burner
flame pattern. Figure 26 shows an
incorrect burner flame pattern.
If burner flame pattern is incorect, as
shown in Figure 26
 turn heater off(see To Turn Off Gas
to Appliance pages 11&12)
 see Troubleshooting, pages 14
through 16)
OPERATING HEATER
Continued
1. Remove lower front panel (see
Figure 7 page 7).
2. Follow steps 1 through 5 under
Lighting Instructions on page12.
3. With control knob pressed in,
strike match. Hold match to
pilot until pilot lights.
4. Keep control knob pressed in
for 30 seconds after lighting pilot.
After 30 seconds, release control
knob.Follow step 8 under Lighting
Instuctions on page 12.
5. Replace lower front panel.
MANUAL LIGHTING
PROCEDURE

14
TROUBLESHOOTING
Note : All troubleshooting
items are listed in order of
operation.
WARNING: Only a qualified
service person should service and
repair heater.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage
ODS/pilot unit.
OBSERVED PROBLEM
When ignitor button is pressed and
control knob is pressed in and turned to
the PILOT position, there is no spark
at ODS/pilot.
When ignitor button is pressed and
control knob is press in and turned to
the PILOT position, there is a spark
at ODS/pilot but no ignition.
ODS/pilot lights but flame goes out
when control knob is released.
POSSIBLE CAUSE
1. Ignitor electrode is positioned
wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode is not connected
to ignitor cable.
4. Ignitor cable is pinched or wet.
5. Broken ignitor cable.
6. Bad piezo ignitor.
1. Gas supply turned off or equipment
shutoff valve is closed.
2. Control knob not fully pressed in
while pressing ignitor button.
3. Air in gas lines when installed.
4. ODS/pilot is clogged.
5. Gas regulator setting is not correct.
6. Control knob notin PILOT position.
1. Control knob is not fully pressed in.
2. Control knob is not pressed in
long enough.
3. Equipment shutoff valve is not
fully open.
4. Thermocouple connection is
loose at control valve.
5 Pilot flame is not touching
thermocouple, This allows
thermocouple to cool, causing
pilot flame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/ pilot
6. Thermocouple damaged.
7. Control valve damaged.
REMEDY
1. Replace ignitor.
2. Replace ignitor.
3. Reconnect ignitor cable.
4. Free ignitor cable if pinched by
any metal or tubing. Keep
ignitor cable dry.
5. Replace ignitor cable.
6. Replace piezo ignitor.
1. Turn on gas supply of open
equipment shutoff valve.
2. Fully press in control knob
while pressing ignitor button.
3. Continue holding down control
knob. Repeat igniting operation
until air is removed.
4. Clean ODS/pilot (see Cleaning and
Maintenance, Page 13) or
replace ODS/pilot assembly.
5. Replace gas regulator.
6. Turn control knob to PILOT position.
1. Press in control knob fully.
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds.
3. Fully open equipment shutoff valve.
4. Hand tighten until snug, then
tighten 1/4 turn more.
5. A) Contact local natural gas
company.
B) Clean ODS/pilot (see Cleaning
and Maintenance, Page 13) or
replace ODS/pilot assembly.
6. Replace thermocouple.
7. Replace control valve.

15
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner(s)does not light after
ODS/pilot is lit.
Delayed ignition of burner(s).
Burner backfiring during combustion.
Burner plaque(s) does not glow.
Slight smoke or odor during
initial operation.
Heater produces clicking/ticking
noise just after burner is lit or
shut off.
White powderresidueforming within
burner box or on adjacent
walls or furniture.
POSSIBLE CAUSE
1. Burner orifice is clogged.
2. Burner orifice diameter is toosmall.
3. Inlet gas pressure is too low.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is defective.
1. Plaque damaged.
2. Inlet gas pressure is too low.
3. Control knob set between locked
positions.
1. Residues from manufacturing
processes.
1. Metal is expanding while heating
or contracting while cooling.
1. When heated, the vapors from
furniture polish, wax, carpet
cleaners, etc. turn into white
powder residue.
REMEDY
1. Clean burner orifice (see Cleaning
and Maintenance, Page 13) or
replace burner orifice.
2. Replace burner orifice.
3. Contact local natural gas company.
1. Contact local natural gas company.
2. Clean burner (see
Cleaning and
Maintenance
, Page 13) or replace
burner orifice.
1. Clean burner orifice (see Cleaning
and Maintenance, Page 13) or
replace.
2. Replace burner.
3. Replace gas regulator.
1. Replace burner.
2. Contact local natural gas company.
3. Turn control knob until it locks at
desired setting.
1. Problem will stop after a few hours
of operation.
1. This is common with most
heaters. If noise is excessive,
contact qualified service person.
1. Turn heater off when using
furniture polish, wax, carpet
cleaner, or similar products.

16
TROUBLESHOOTING
Continued
WARNING: 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.
 Immediately call your gas supplier from a neighbor’s phone. Follow the gas
supplier’s instructions.
 If you cannot reach your gas supplier, call the fire department.
IMPORTANT :Operating heater where impurities in air exist may create odors. Clean-
ing supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or
textiles, etc., create fumes. These fumes may mix with combustion air and create odors.
REMEDY
1. Ventilate room. Stop using odor
causing products while heater
is running.
2. Locate and correct all leaks(see
Checking Gas Connections,
page 10).
1. Open window and/or door for
ventilation.
2. Contact local natural gas
company.
3. Clean ODS/pilot (see Cleaning
page 13).
1. Locate and correct all leak s(see
Checking Gas Connections,
page 10).
2. Replace control valve.
1. Take apart gas tubing and
remove foreign matter.
2. Locate and correct all leaks
(see Checking Gas Connections,
page 10).
1. Refer to Air for Combustion and
Ventilation Requirements, page
4.
POSSIBLE CAUSE
1. Heater is burning vapors from
paint, hair spray, glues, etc.
(See IMPORTANT statement
above).
2. Gas leak. See Warning
Statement at top of page.
1. Not enough fresh air is available.
2. Low line pressure.
3. ODS/pilot is partially clogged.
1. Gas leak. See Warning
Statement at top of page.
2. Control valve is defective.
1. Foreign matter between control
valve and burner.
2. Gas leak. See Warning
Statement at top of page.
1. Not enough combustion/ventilation
air.
OBSERVED PROBLEM
Heater produces unwanted odors.
Heater shuts off in use(ODSoperates).
Gas odor even when control knob is
in OFF position.
Gas odor exists during combustion.
Moisture/condensation noticed on
windows.