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Fans and Fan Motors
Periodically
check
the condition
of fan wheels
and housings
and
fan motor
shaft
bearings.
Contact
your
dealer
for the
required
annual maintenance.
Heat Exchanger
To ensure
dependable
and efficient
heating
operation,
the
heat
exchanger
should
be checked
by a qualified
maintenance
person
before
each
heating
season,
and cleaned
when
necessary.
This
checkout
should
not
be
attempted
by anyone
not
having
the
required
expertise
and equipment
to properly
do the job. Contact
your dealer for the required
periodic
maintenance.
Indoor and Outdoor
Coils
Cleaning
of the coils
should
only
be done
by qualified
service
personnel.
Contact
your
dealer
for
the
required
annual
maintenance.
Condensate
Drain
The drain
pan and condensate
drain
line should
be checked
and
cleaned
at the same
time the cooling
coils are checked
by your
dealer.
Compressor
All compressors
are factory
shipped
with
a normal
charge
of the
correct
type of refrigeration
grade
oil. A compressor
should
rarely
require additional
oil.
Condenser
(Outdoor)
Fan
PERSONAL
INJURY
AND
UNIT
DAMAGE
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury,
death or property
damage.
Do not insert sticks, screwdrivers,
or any other objects
into
revolving
fan blades.
The fan must
be kept
free of all obstructions
to ensure
proper
cooling.
Contact
your dealer for any required
service.
Electrical
Controls
and Wirin_
Electrical
controls
are
difficult
to
check
without
proper
instrumentation.
If there
are any discrepancies
in the operating
cycle, contact
your local dealer and request
service.
Refrigerant
Circuit
The refrigerant
circuit
is difficult
to check
for leaks
without
the
proper
equipment.
If inadequate
cooling
is suspected,
contact
your
local dealer for service.
EXPLOSION
AND ENVIRONMENTAL
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury,
death or property
damage.
System
under
pressure.
Relieve
pressure
and recover
all
refrigerant
before
system
repair
or final unit disposal.
Use
all
service
ports
and
open
all
flow-control
devices,
including
solenoid
valves.
Unit Panels
After performing
any maintenance
or service
on the unit, be sure
all panels
are fastened
securely
in place
to prevent
rain from
entering
unit cabinet
and to prevent
disruption
of the correct
unit
airflow
pattern.
Combustion
Area and Vent System
For proper
and safe operation,
the furnace
needs air for combustion
and ventilation.
The air openings,
on the furnace,
the air openings
to the area in which the furnace
is installed,
and the spacing
around
the furnace must not be blocked
or obstructed.
The combustion
area and vent system
should be inspected
visually
before
each heating
season.
The normal
accumulation
of dirt, soot,
rust,
and
scale
can
result
in loss
of efficiency
and
improper
performance
if allowed
to build up. This inspection
should be done
by a trained
service person.
FIRE,
EXPLOSION
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury, death and/or property
damage.
If your unit makes
an especially
loud noise when
the main
burners
are ignited,
shut down
the heating
section
and call
your dealer.
BURN
HAZARD
Failure to follow
this caution
may result in personal
iniury.
Components
in heating
section
may be hot after unit has
been started up. When observing
flame, be careful not to get
close to or touch heating
components.
Regular
Dealer
Maintenance
In addition to the type of routine maintenance you might be willing
to perform, your unit should be inspected regularly by a properly
trained service technician. An inspection (preferably each year, but
at least every other year) should include the following:
1. Inspection of all flue product passages-including
the burn-
ers, heat exchanger, and flue collector box, Mare sure the
burner flames are blue in color and in proper adjustment.
Refer to Fig. 8 for burner flame.
2. Inspection of all combustion-and
ventilation-air
passages
and openings.
3. Close inspection of all gas pipes leading to and inside of
your unit.
4. Inspection and, if required, cleaning of the outdoor and
indoor coils.
5. Inspection and, if required, cleaning of the indoor coil con-
densate drain pan.
6. Inspection
and cleaning
of blower wheel housing
and
motor.
7. Inspection of all supply-air
and return-air ducts for leaks,
obstructions, and insulation integrity. Any problems found
should be resolved at this time.
8. Inspection of the unit base to ensure that no cracks, gaps,
etc., exist which may cause a hazardous condition.
9. Inspection of the unit casing for signs of deterioration.
10. Inspection of all electrical wiring and components to assure
proper connection.
11. Inspection
for leaks in the refrigerant circuit. Pressure
check to determine appropriate refrigerant charge.
12. Operational
check
of the unit
to determine
working
conditions. Repair or adjustment should be made at this
time.
Your servicing dealer may offer an economical service contract that
covers seasonal inspections. Ask for further details.
Complete service instructions can be found in the unit Installation,
Start-up and Service Instructions.
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