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UNiT S_ZE
PY3P024-036
PY3P042-060
Table 1Mndoor=Air
FiRer Data
F_LTER S_ZE
20 x 24
24 x 36
1
AiR FILTERS
The air filter(s)
should be checked
at least every 3 months
and changed
or cleaned
whenever
it becomes
dirty, r)irty filters produce
excessive
stress
on the blower
motor
and can cause the motor to overheat
and shut down. Table
1 indicates
the correct
filter size for your unit. Refer
to Fig. 6 to
access
the filters.
To replace
or inspect
filters
(or accessory
filter rack when
supplied):
1. Remove
the filter
access
panel using
a 5/16-in.
nut driver.
2. Remove
the filter(s)
by pulling
it out of the unit.
If the filter(s)
is dirty, clean or replace
with a new one.
When installing
the new tilter(s),
note the direction
of the airflow
arrows
on the tilter frame.
If you have difficulty
locating
your air filter(s)
or have questions
concerning
proper
filter maintenance,
contact
your dealer
_br instructions.
When
replacing
filters,
always
use the same
size and type of filter
that was supplied,
originally,
by the installer.
WARNING:
FIRE AND UNIT OPERATION
HAZARD
Failure to follow
this warning
could resuR in personat
injury, death or property
damage.
Never operate your unit without
the filter(s}
in place. An accumulation
of dust and Hnt on internal parts of your unit can cause
loss of efficiency
and blower
motor and/or compressor
damage.
FANS
AND FAN MOTORS
Periodically,
check the condition
of fan wheel and housing
and fan-motor
shaft bearings.
Contact
your dealer
for the required
ammal maintenance.
HEAT
EXCHANGER
To ensure
dependable
and efficient
heating
operation,
the heat exchanger
should be checked
by a qualified
maintenance
person be_bre 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
%r the required
periodic
maintenance.
EVAPORATOR
AND CONDENSER
COILS
(leaning
of the coils
should
only be done by qualified
service
personnel.
Contact
your dealer
for tile required
annual
maintenance.
CONDENSATE
DRAIN
The condensate
drain and condensate
drain line should
he checked
and cleaned
at the same
time the cooling
coils are checked
by your dealer.
COMPRESSOR
AII compressors
are factory-shipped
with a normal charge
of the correct
type refrigeration
grade
oil. A compressor
should rarely require
additional
oil.
CONDENSER
(OUTDOOR)
FAN
Z_
CAUTUON:
PERSONAL
iNJURY HAZARD
Failure to follow
this caution
may resuR in personal
injury.
Do not poke sticks, screwdrivers,
or any other objects
into revolving
fan Nades.
The fan must be kept 5"ee of all obstructions
to ensure
proper
cooling.
Contact
your dealer
_br any required
service.
ELECTRICAL
CONTROLS
AND WIRING
Electrical
controls
are difficult
to check without proper instrumentations.
If there are any discrepancies in tile operating cycle, contact your dealer
and request
service.
REFRIGERANT
CIRCUIT
The refi'igerant
circuit
is difficult
to check
for leaks
without
the proper
equipment.
If inadequate
cooling
is suspected,
contact
your local
dealer
_br service.
Z_
WARNING:
EXPLOSUON HAZARD
Failure to follow
this warning
could resuR in personal
injury, death and/or property
damage.
System
under pressure.
Regeve pressure
and recover
aH refrigerant
before system
repair
or finaJ unit disposal
Use aH
service
ports and open aH flow-control
devices,
incJuding solenoid
valves.
UNIT
PANELS
After perfoiming
any maintenance
or service on the unit, be sure all panels are fastened securely in place to prevent rain from entering the unit
cabinet and to prevent disruption
of the correct unit airflow
pattern.
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