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Periodic Servicing Requirements
1. GENERAL INSPECTION – E E x x a a m m i i n n e e t t h h e e f f u u r r n n a a c c e e
i i n n s s t t a a l l l l a a t t i i o o n n a a n n n n u u a a l l l l y y f f o o r r t t h h e e f f o o l l l l o o w w i i n n g g i i t t e e m m s s : :
a. All flue product carrying areas external to the
Furnace (i.e. chimney, vent connector) are clear
and free of obstruction. A vent screen in the end
of the Vent (flue) Pipe must be inspected for
blockage annually, if applicable.
b. The vent connector is in place, slopes upward
and is physically sound without holes or
excessive corrosion.
c. The return air duct connection(s) is physically
sound, is sealed to the Furnace and terminates
outside the space containing the Furnace.
d. The physical support of the Furnace should be
sound without sagging, cracks, gaps, etc.,
around the base so as to provide a seal between
the support and the base.
2. FILTERS – Filters should be cleaned or replaced
(with high velocity filters only), monthly and more
frequently during high use times of the year such as
midsummer or midwinter.
3. BLOWERS – The Blower size and speed determine
the air volume delivered by the Furnace. The
Blower motor bearings are factory lubricated and
under normal operating conditions do not require
servicing. Annual cleaning of the Blower wheel and
housing is recommended for maximum air output,
and this must be performed only by a qualified
servicer or service agency.
4. IGNITER – This unit has a special hot surface direct
ignition device that automatically lights the
burners. Please note that it is very fragile and
should be handled with care. ! CAUTION Do NOT
touch igniter. It is extremely hot.
5. HEAT EXCHANGER/ FLUE PIPE – These items must
be inspected for signs of corrosion, and/ or
deterioration at the beginning of each heating
season by a qualified service technician and
cleaned annually for best operation. To clean flue
gas passages, follow recommendations below:
a. Turn off gas and electric power supply.
b. Inspect flue pipe exterior for cracks, leaks, holes
or leaky joints.
c. Remove door from Furnace.
d. Inspect induced draft Blower connections to the
flue pipe connection.
e. Use a mirror and flashlight to inspect interior of
Heat Exchanger, be careful not to damage the
Igniter, Flame Sensor or other components.
f.
If any corrosion is present, the Heat Exchanger
should be cleaned by a qualified service
technician.
g. After inspection is complete replace burner and
Furnace door.
L8V1-SVX001-1A-EN
h. Restore gas supply. Check for leaks using a soap
solution. Restore electrical supply. Check unit
for normal operation.
6. COOLING COIL CONDENSATE DRAIN - If a cooling
coil is installed with the Furnace, condensate drains
should be checked and cleaned periodically to
assure that condensate can drain freely from coil to
drain. If condensate cannot drain freely water
damage could occur.
General Maintenance and
Cleaning
H H e e a a t t E E x x c c h h a a n n g g e e r r
N N o o t t e e : : If the heat exchanger gets a heavy accumulation
of soot or carbon, it should be replaced rather
than trying to clean. A heavy build-up of soot
and/or carbon indicates that a problem exists
which needs to be corrected, such as improper
adjustment of gas valve outlet pressure,
insufficient or poor quality combustion air,
incorrect size or damaged orifice(s), improper
gas, or a restricted heat exchanger. Action must
be taken to correct the problem.
B B u u r r n n e e r r A A s s s s e e m m b b l l y y
I I m m p p o o r r t t a a n n t t : : Proper use of Personal Protective
Equipment (PPE) must be followed,
including safety glasses, gloves, and dust
mask when removing and reinstalling the
burner assembly.
N N o o t t e e : : Disassembly of the burner assembly during
annual maintenance should not be required in
most applications but may vary depending on
the location and application of the furnace.
Inspection of all components, wiring, and
verifying proper operation should be part of the
annual maintenance work performed.
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