Inspecting Burners; Cleaning And Maintenance - Superior MNF24ONM Installation And Operation Instructions Manual

Check pilot fl ame pattern and burner fl ame patterns often.
PILOT ASSEMBLY
The pilot assembly is factory preset for the proper fl ame height.
Alterations may have occurred during shipping and handling.
Call a qualifi ed service person to readjust the pilot if necessary.
The height of the thermopile must be 3/8" to 1/2" above the
pilot fl ame as shown in Figure 28. The thermocouple must be
at a height of about 1/8" above the pilot fl ame. The fl ame from
the pilot burner must extend beyond both the thermocouple
and thermopile.
If your pilot assembly does not meet these requirements:
• turn fi replace off (see To Turn Off Gas to Appliance, Page
15)
• see Troubleshooting, Page 19
BURNER FLAME PATTERN
Thermopile
3/8" to 1/2"
Piezo
Igniter
Figure 28 - Pilot Assembly
Figure 29 shows correct burner fl ame pattern.
NOTICE: Do not mistake orange fl ames with
yellow tipping. Dirt or other fi ne particles are
burned by appliance, causing brief patches of
orange fl ame.
If burner fl ame pattern is incorrect, as shown in Figure 30.
• turn appliance off (see To Turn Off Gas to Appliance, Page
15)
• see Troubleshooting, Page 19
Figure 29 - Correct Burner Flame Pattern
16

INSPECTING BURNERS

Pilot Burner
1/8"
Thermocouple
Yellow Flames with
Orange Streaks
SuperiorFireplaces.us.com
Figure 30 - Incorrect Burner Flame Pattern

CLEANING AND MAINTENANCE

WARNING: Turn off appliance and let cool
before cleaning.
CAUTION: You must keep control areas,
burners and circulating air passageways of ap-
pliance clean. Inspect these areas of appliance
before each use. Have appliance inspected
yearly by a qualifi ed service person.
WARNING: Failure to keep the primary air
opening(s) of the burner(s) clean may result
in sooting and property damage.
BURNER INJECTOR HOLDER AND PILOT AIR
INLET HOLE
The primary air inlet holes allow the proper amount of air to
mix with the gas. This provides a clean burning fl ame. Keep
these holes clear of dust, dirt, lint and pet hair. Clean these air
inlet holes prior to each heating season. Blocked air holes will
create soot. We recommend that you clean the unit every three
months during operation and have appliance inspected yearly
by a qualifi ed service person.
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 PSI.
Your local computer store, hardware store or home center may
carry compressed air in a can. 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 unit, including pilot. Allow unit to cool for at least
thirty minutes.
2. Inspect burner, pilot and primary air inlet holes on injector
holder for dust and dirt (see Figure 31, Page 17).
3. Blow air through the ports/slots and holes in the burner.
4. Check injector holder located at end of burner tube again.
Remove any large particles of dust, dirt, lint or pet hair with
a soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on the injector holder.
Dark Orange
Flames
900465-01A