OWNER’S MANUAL
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONER
13 AND 14 SEER
1 PHASE - 1.5 TO 5 TONS
MODELS: 10 & 12 SEER
3 PHASE - 3 TO 7.5 TONS
TABLE OF CONTENTS
HOW YOUR AIR
CONDITIONER WORKS . . . . . . 2
SYSTEM OPERATION . . . . . . . 2
SETTING THE THERMOSTAT . . . . 2
COOLING CYCLE . . . . . . . . . . . . . . 3
TO MAXIMIZE OPERATING
EFFICIENCY . . . . . . . . . . . . . . . 3
HEATING CONSERVATION . . . . . . 3
COOLING CONSERVATION . . . . . . 3
CARE OF SYSTEM . . . . . . . . . . 3
COIL CARE . . . . . . . . . . . . . . . . . . . 3
CARE OF FAN MOTORS . . . . . . . . . 4
FILTER CARE . . . . . . . . . . . . . . . . . 4
OUTDOOR UNIT FINISH . . . . . . . . . 4
CLEARANCES . . . . . . . . . . . . . . . . . 4
COOLING SEASON . . . . . . . . . . . . . 4
SERVICE CALLS . . . . . . . . . . . . . . . 4
PARTS INFORMATION . . . . . . . . . . 4
EXTENDED PROTECTION PLANS . 4
035-08460-001 Rev. B (0903)
035-08460-001 Rev. B (0903)
Keep lamps, televisions, or other heat
producing sources away from the ther-
mostat. The thermostat will sense this
extra heat and will not be able to main-
tain the inside temperature to the
desired comfort level.
COOLING CYCLE
Switch your thermostat to cool. Select
a comfortable thermostat temperature
setting, typically between 75 and 80°.
Comfort sensations vary with individu-
als. The lower the indoor temperature
desired, the greater will be the number
of hours your unit must operate.
Turn off the electrical power
at the main disconnect for
both the indoor heating unit
and the outdoor unit before
attempting any maintenance
operations.
COOLING CONSERVATION
To comfortably cool your home, your
air conditioner must remove both heat
and humidity. Don't turn your system
off even though you will be away all
day. On a hot day, your system may
have to operate between 8 to 12 hours
to reduce the temperature in your
home to a normal comfort level.
Set your thermostat 2 or 3°F below
normal several hours before entertain-
ing large groups during hot weather.
People give off considerable heat and
moisture.
A periodic inspection, cleaning, lubrica-
tion and adjustment of your air condi-
tioning system is available from your
dealer. Be sure to ask him about this
service.
On an extremely hot day, the indoor
temperature may rise 3 to 6°F above
the thermostat setting. Properly
selected equipment does not have the
capacity to maintain a constant indoor
temperature during the peak load.
Over-sizing your system to handle this
peak load isn't practical because the
oversized system would operate much
less efficiently at all other conditions.
For those who prefer to do-it-yourself,
follow the instructions below to care for
your system.
Keep windows closed after sundown.
While the outdoor temperature at night
may be lower than indoors, the air is
generally loaded with moisture which is
soaked up by furniture, carpets, and
fabrics. This moisture must be
removed when you restart your sys-
tem.
Document and retain in your records,
the following information:
Model Number: __________________
Serial Number: __________________
Date Installed: __________________
Installing Dealer: ________________
The hotter the outside temperature, the
greater the load on your system.
Therefore do not be alarmed when
your system continues to run after the
sun has set on a hot day. Heat is
stored in your outside walls during the
day and will continue to flow into your
home for several hours after sunset.
_______________________________
_______________________________
COOL
DISCHARGED
HEATED AIR
SUPPLY AIR
This information will be useful if the
unit requires service from a qualified
technician.
OUTDOOR
AIR INTAKE
WARM HOUSE AIR
COIL CARE
Use your kitchen exhaust fan when
cooking. One surface burner on
"HIGH" requires one ton of cooling.
Turn on your bathroom exhaust fan
while showering to remove humidity.
However, exhaust fans should not be
run excessively. It would decrease effi-
ciency by removing conditioned air.
Keep the outdoor unit free of loose
snow, foliage, grass clippings, leaves,
paper, and any other material which
could restrict the proper air flow in and
out of the unit. The coil may be vacu-
umed to remove any debris from
between the fins. However, don't knock
ice off the outdoor unit's coil surface
following an ice or severe snowstorm.
The blows could mash the coil fins
shut (blocking air passage), or break
the refrigerant tubing allowing the
refrigerant to escape.
FIGURE 2:
TO MAXIMIZE OPERATING
EFFICIENCY
HEATING CONSERVATION
For the most efficient operation, keep
storm windows and doors closed all
year long. They not only help insulate
against heat and cold, but they also
keep out dirt, pollen and noise.
You can also help your system in the
summer by closing drapes or blinds
and by lowering awnings on windows
that get direct sunlight.
Closing drapes at night, keeping fire-
place dampers closed when not in use,
and running exhaust fans only when
necessary will help you to retain the air
you have already paid to heat.
CARE OF SYSTEM
If the coil becomes excessively dirty,
turn the main disconnect switch to
"OFF" and wash the coil with your gar-
den hose. Avoid getting water into the
fan motor and control box. Flush dirt
from base pan after cleaning the coil.
IMPORTANT: The Owner/user
should not attempt to disassemble
the equipment nor perform the
periodic maintenance unless he or
she is experienced and qualified to
Unitary Products Group
3
Table 1: Schedule For Re-lubrication
Install the clean filters with air flow"
arrow in the same direction as the air
flow in your duct. Filters should be
clean to assure maximum efficiency
and adequate air circulation. Drapes,
furniture or other obstructions blocking
your supply and return air grilles will
also decrease efficiency.
CARE OF FAN MOTORS
Some fan motors are provided with
lubrication ports. Inspect your indoor
and outdoor units to determine
whether or not lubrication ports are
provided.
Running
Hours
Per Day
Environment
Normal
Dirty
Every
5 Years
Every
4 Years
0-8
9-16
17-24
Every
4 Years
Every
3 Years
The fan motor is shipped with an oil
supply which will last for several years
under normal operating conditions.
After this time, each motor bearing
should be oiled with 10-15 drops
(approximately 1/4 teaspoon) of SAE
20 non-detergent electric motor oil or
automobile oil. DO NOT use definite
purpose oils such as sewing machine,
cleaning, rust preventative, cutting,
household, etc.
Every
3 Years
Every
2 Years
OUTDOOR UNIT FINISH
If you wish to maintain the finish of the
outdoor unit, it can be polished with car
wax. It is recommended the unit be
cleaned with soap and water prior to
waxing.
NOTE: DO NOT OVER OIL
FILTER CARE
Inspect the air filter(s) at least once a
month. If they are dirty, wash reusable
filters with a mild detergent per manu-
facturer's recommendations. Replace
disposable filters with new filters.
Table 2: Troubleshooting Guide
FAULT CODE
(On Thermostat)
PROBLEM
CHECK
1. Thermostat for proper settings.
ACTION TO TAKE
Set thermostat to proper setting.
–
–
2
2
No Heat
or
Cooling
2. Circuit breakers and fuses.
Reset circuit breakers - Replace blown fuses.
Clean coil, see “Coil Care" section.
3. Check outdoor unit for dirty coil. (Cooling)
5. Indoor unit for dirty filter. (Heating)
Clean or replace, see “Filter Care" section
Wet on Floor or
in Furnace
Condensate drain and “P" trap
Remove blockage, usually mold or fungus.
–
After completing the checks and actions above, turn thermostat to “OFF" for 10 seconds and attempt restart. Wait 5 minutes. If system does
not start, call qualified service person.
CLEARANCES
SERVICE CALLS
PARTS INFORMATION
The minimum clearances shown below
must be maintained should any patio
or yard improvements be done around
the outdoor unit.
There are a few instances where you
can avoid unnecessary service calls.
(See Troubleshooting Guide above).
Some models provide fault codes. The
flashing light on the system thermostat
is capable of providing you with time
and money saving information. The
fault code numbers listed can be han-
dled by taking the corrective action
indicated. Call qualified service person
if displaying fault code numbers not
listed.
Replacement parts are available from
local contractor/dealers or the nearest
distribution center.
EXTENDED PROTECTION
PLANS
TOP 60”
SIDES 10”
Special warranty packages are avail-
able through your contractor/dealer.
These packages reduce the potential
cost of service calls following the first
year of operation on your cooling or
heating/cooling system.
FRONT* 24”
REAR 10”
* Service access panel.
COOLING SEASON
1. Switch thermostat to OFF position.
2. Do not switch to cooling or auto
until electrical power has been
reestablished for 8 hours if the
power was off more than 8 hours.
Subject to change without notice. Printed in U.S.A.
Copyright © by York International Corp. 2003. All rights reserved.
035-08460-001 Rev. B (0903)
Supersedes: 035-08460-001 Rev. A (202)
Unitary
Products
Group
5005
York
Drive
Norman
OK
73069
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