Central Air Conditioner
USER’S INFORMATION MANUAL
FOR THE OPERATION AND
MAINTENANCE OF YOUR NEW
RESIDENTIAL AIR CONDITIONER
NOTE T O INST ALLER:
THIS MANUAL MUST BE LEFT WITH
THE EQUIPMENT USER.
WELCOME TO EFFICIENT HOME COOLING COMFOR T
Congratulations on your excellent choice and sound investment in home cooling comfort!
Y our new air conditioning unit represents both the latest in engineering de v elopment and the culmination of many years of experience
from one of the most reputable manufacturers of comfort systems.
Your new unit is among the most energy-efficient and reliable air conditioning products available today. To assure its dependability ,
spend just a few minutes with this booklet now. Learn about the operation of your air conditioner, and the small amount of maintenance it takes to keep it operating at its peak efficiency.
With minimal care, your ne w air conditioner will provide you and your family with cool comfort—both now and for years to come.
!
WARNING: Improper installation, adjustment, alteration, service, maintenance or use can cause explosion,
fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product.
!
WARNING: To prevent personal injury, death, or property damage read and follow all instructions and warn-
ings, including labels shipped with or attached to unit before operating your new heat pump.
Y OUR COMFOR T SYSTEM
Identifying Y our System
Take the time to familiarize yourself with the type of system you have. This knowledge will be of use in understanding the basic
operation of your new air conditioner.
The split-system type has an indoor and an outdoor unit, each of which contains a coil. These units are interconnected by refrigerant
tubes. (See Fig. 1.)
Fig. 1—Typical Split-System Installation
Each unit has a rating plate affixed to it which provides necessary information for specific identification of a unit. You should
familiarize yourself with the product, model, and serial numbers listed on each rating plate.
IMPORTANT FACTS
To better protect your in vestment and to eliminate unnecessary service calls, familiarize yourself with the following facts:
• Your air conditioning system should never be operated without a clean air filter properly installed. Plan to inspect the filter periodically . A clogged air filter will increase operating costs and shorten the life of the unit.
• Supply-air and return-air registers should not be blocked. Drapes, furniture, and to ys are some of the items commonly found obstructing grilles. Restricted airflow lessens the unit’s efficiency and life span.
The outdoor unit must have unrestricted airfl o w. Do not cover the unit, lean anything against it, or stand upon it. Do not allow grass
clippings, leaves, or other debris to accumulate around or on top of the unit. Maintain a 12-in. minimum clearance between the
outdoor unit and tall grass, vines, shrubs, etc.
• Your multipurpose indoor thermostat is the control center for your air conditioning system. Y ou should f amiliarize yourself with its
proper operation. Attempting to control the system by other means—for instance, switching the electrical supply power ON and
OFF—may cause damage to the unit.
2
3
°
°
• Thermostat “jiggling” causes rapid-cycling, which is potentially damaging to the compressor. Do not move the temperature selector
on the thermostat for any reason for at least 5 minutes after the compressor has shut off.
• You may find that you can maintain greater personal comfort by running the fan continuously. “Air pockets” can form due to the
structure of the house, placement of registers, etc. These air pockets may be too cool or warm for your liking. Continuous f an operation
minimizes any temperature differences. Also, systems equipped with electronic air cleaners and/or humidifiers offer the added benefits of having the air continuously cleaned year -round, and humidifi ed during the winter season.
• Your air conditioner will remove humidity from your home during the cooling season. After a few minutes of operation, you should
be able to see water trickle from the condensate drain of the cooling coil. Check this occasionally to be sure the drain system is not
clogged. Of course, don’t expect to see much drainage if you live in a very dry
environment.
OPERATING Y OUR AIR CONDITIONER
The operation of your air conditioning system is controlled by the indoor thermostat. Y ou may ha ve a manual change ov er thermostat
or an Auto change o ver thermostat. (See Fig. 2 or 3.) You simply adjust the thermostat and it maintains the indoor temperature at the
comfort level you select. Thermostats have 3 controls: the temperature control selector, FAN mode, and heater cool mode.
HEAT ON COOL
®
Fig. 2—Typical Manual Changeover
Thermostat
The temperature control selector is a dial, lev er, or push button that allows you to establish the degree of temperature that you wish
to maintain for your personal comfort. Some thermostats possess 2 temperature control settings: 1 for setting the temperature desired
during the cooling cycle, and 1 for setting the temperature desired during the heating c ycle. T ypical settings are 78
68
F for heating.
The F AN offers 2 options for controlling the blower: A UTO and ON. When set to A UTO, the blower will run only while the thermostat
operates the cooling or heating section. When the FAN is set at ON, the blower will run continuously—re g ardless of whether the
cooling or heating section is operating.
T ypically , your thermostat offers the follo wing selections: COOL, OFF , and HEAT . Your thermostat may also hav e a fourth selection,
AUT O. Neither the cooling or heating section will operate if OFF is selected. If COOL is selected, the cooling section of your comfort
system will operate when the indoor temperature rises above the level that you wish to maintain. If HEAT is selected, the heating
section will operate automatically when the indoor temperature falls below the level that you have selected.
The AUTO selection found on some thermostats provides for automatic changeo ver between cooling and heating cycles. (See
Fig. 3.) With AUTO selected, the cooling section will operate when the indoor temperature rises above the thermostat cooling
temperature setting, or the heating section will operate when the indoor temperature drops belo w the thermostat setting for the heating
cycle.
COOLING CYCLE
When operating in the cooling mode, your air conditioner will run until the indoor temperature is lowered to the level you have
selected. On extremely hot days, your air conditioner will run for longer periods at a time and have shorter “off” periods than on
moderate days.
The following are typical conditions that add e xtra heat and/or humidity to your home and force your cooling unit to work longer to
keep your home comfortable:
• Entrance doors are frequently opened and closed
Fig. 3—Typical Autochangeover
Thermostat
F for cooling and
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