Lennox International Inc. GSR21Q - Manual (Page 5)

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Motors are pre-lubricated for extended bearing life;
no further lubrication is required.
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At the beginning of each heating season, the system
should be checked as follows:
1- Examine the termination ends of the intake and ex-
haust lines for obstructions or blockages.
2- Check the intake and exhaust lines for holes, sag-
ging or broken isolation hangers. If a sag is found in
either line, raise the line and support it with an isola-
tion hanger. Replace any damaged isolation hang-
ers.
3- The return air duct connection should be sealed to
the furnace casing and terminate outside the space
containing the furnace.
4- Check the physical support of the furnace. It should
be sound without sagging, cracks, gaps, etc., around
the base so as to provide a seal between the support
and the base.
5- Check that there is no obvious signs of deterioration
of the furnace.
6- Inspect and clean condensate drain system for free
flow of condensate.
IMPORTANT-If a change in the sound level of the unit
is detected or there is evidence of condensate leak-
age around the unit, contact your Lennox service
technician.
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Call your Lennox service technician if the unit is inop-
erative. Before calling, always check the following to
be sure service is required:
1- Be sure electrical switches are ON.
2- Check the room thermostat for proper setting.
3- Replace any blown fuses or reset circuit breakers.
4- Make sure gas valve is on.
5- Blower access panel is in place.
6- Air filter must be clean.
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If you discover any of the following, shut down your
unit, and contact an independent Lennox dealer for
an inspection by a qualified technician.
- If you repeatedly hear any new or unfamiliar sounds
while your unit is operating, there may be a problem.
For example, poorly performing burners can produce
unfamiliar noises.
- If you smell any unusual odors, your unit may be oper-
ating improperly. For example, units can give off unfa-
miliar odors if components are required to operate in
abnormal conditions.
- Look for visible signs of a malfunctioning unit. Exam-
ples include unusual amounts of condensate on win-
dows inside your house, visibly burnt components or
unusual dirt or rust accumulations on the vent pipe or
in the unit.
- If you experience headache, nausea, fatigue, or dizzi-
ness, the cause could be exposure to carbon monox-
ide gas. This is often misdiagnosed as the flu because
symptoms are similar. If you suffer from flu-like symp-
toms that are exaggerated at home, but seem to sub-
side while you are away from the house, exposure to
carbon monoxide could be the cause.
Your vigilance may pay off in early detection of a problem
before either personal injury or property damage occurs.
Do not hesitate to contact a qualified service technician as
an investment in your well being.
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You should expect a service technician to check the following
items during an annual inspection. Power to the unit must be
shut off for the service technician’s safety.
Fresh air grilles and louvers (on the unit and in the room
where the furnace is installed) - Must be open and unob-
structed to provide combustion air.
Burners- Must be inspected for rust, dirt, or signs of water.
Vent pipe - Must be inspected for dirt, signs of water, dam-
aged or sagging unsupported pipe, or disconnected joints.
Unit appearance - Must be inspected for rust, dirt, signs of
water, burnt or damaged wires, or components.
Blower access door - Must be properly in place and provide
a seal between the return air and the room where the furnace
is installed.
Return air duct - Must be properly attached and provide an
airtight seal to the unit.
Operating performance - Unit must be observed during op-
eration to monitor proper performance of the unit and the
vent system.
Combustion gases - Flue products must be analyzed and
compared to the unit specifications.
Problems detected during the inspection may make it neces-
sary to temporarily shut down the furnace until the items can
be repaired or replaced.
Pay attention to your furnace. Situations can arise be-
tween annual furnace inspections that may result in unsafe
operation. For instance, items innocently stored next to the
furnace may obstruct the combustion air supply. This could
cause incomplete combustion and the production of carbon
monoxide gas.