Vanguard Heating VMH3000TPA Electric Heater User Manual


 
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107098
OWNER’S MANUAL
For more information, visit www.desatech.com
CLEANING AND
MAINTENANCE
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 cabi-
net to remove dust.
CAUTION: You must keep
control areas, burner, and circu-
lating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a quali-
fied service person. Heater may
need more frequent cleaning due
to excessive lint from carpeting,
pet hair, bedding material, etc.
WARNING: Turn off heater
and let cool before cleaning.
CLEANING 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 flame. 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 cre-
ate soot. We recommend that you clean the
unit every three months during operation
and have heater inspected yearly by a quali-
fied 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 recom-
mend using compressed air no greater than
30 PSI. Your local computer store, hard-
ware store, or home center may carry com-
pressed 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 direc-
tions on the can. If you don't follow direc-
tions 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, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 28).
3. Blow air through the ports/slots and
holes in the burner.
Figure 28 - Injector Holder On Outlet
Burner Tube
4. Check the injector holder located at the
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hairs with a soft cloth or vacuum
cleaner nozzle.
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
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 29). 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 29 - Pilot Inlet Air Hole
Pilot Assembly
Pilot Air Inlet Hole
REPLACEMENT
PARTS
Note:
Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-323-5190
for referral information.
When calling DESA International, have
ready
your name
your address
model and serial numbers of your heater
how heater was malfunctioning
type of gas used (propane/LP or natural
gas)
purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this product. If
they can’t supply original replacement part(s),
call DESA International’s Parts Department
at 1-800-972-7879 for referral information.
When calling DESA International, have
ready
model number of your heater
the replacement part number
Burner
Tube
Injector
Holder
Primary Air
Inlet Hole
Ports/Slots