Bryant 557A User Manual
user’s information manual
SINGLEPACKAGED
COOLING UNITS
Cancels:OM01-53 OM01-64
557A
Sizes 024-060
1/03
NOTE TO INSTALLER:
This manual should be left with the equipment
owner.
WARNING:Before performing recommended maintenance, be sure main power switch to unit is turned
off. Electrical shock could cause personal injury.
Model 557ASinglePackaged CoolingUnitsWithoutBaseRail
Model 557ASinglePackageCoolingUnitsWithOptionalBaseRail
WELCOME TO EFFICIENT
COOLING COMFORT
Congratulations on your excellent choice and sound investment in home cooling comfort! Your new air conditioner represents both the latest in engineering development 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 yourairconditionerandthe small amount of maintenance it takes to keep it operating at its peak efficiency.
With minimal care, your air conditioner will provide you and
your family with satisfying home comfort — both now and
for years to come.
IMPORTANT FACTS
To better protect your investment and to eliminate unnecessary service calls, familiarize yourself with the following facts:
WARNING:
ation, service, maintenance or use can cause explosion,
fire, electrical shock or other conditions which maycause
personal injury orpropertydamage.Refer to this manual.
For assistance or additional information consult a
qualified installer,service agency,distributor, or branch.
The qualified installer or agency must use only factory
authorized kits or accessories when modifying this
product.
• Yourair 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 toys are some of the items commonly
found obstructing grilles. Restricted airflow lessens the unit’s
efficiency and life span.
• Outdoor units must have unrestricted airflow. 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,
et cetera.
• Your multipurpose indoor thermostat is the control center
for your air conditioning system. You should familiarize 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.
• 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 building, placement of registers,
et cetera. These air pockets may be too cool or warm for your
liking. Continuous fan 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 humidified during
the winter season.
• Your air conditioner will remove humidity from your home
during the cooling season. After a few minutes of operation,
Improper installation, adjustment, alter-
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 YOUR AIR CONDITIONER
The operation of your air conditioning system is controlled
by the indoor thermostat. You simply adjust the thermostat
and it maintains the indoor temperature at the level you select. Most thermostats for air conditioning systems have three
controls. Thesearethe temperature control selector,FANswitch,
and SYSTEM switch.
Thetemperaturecontrolselectorisadialor button(s) thatal-
lows you to establish the degree of temperature that you wish
to maintain for your personal comfort. Some thermostats possess two temperature control selectors: one for setting the temperature desired during the cooling cycle, and one to set the
heating operation temperature (if the accessory electric heater
is used). Typical settings are 78 degrees Fahrenheit for cooling and 68 degrees for heating.
The FAN switch offers two options for controlling the blower:
AUTO and ON. When set to AUTO, the blower will run
during the time the air conditioner is operating. When the
FAN switch is set at the ON position, the blower will run continuously.
Typically, the SYSTEM switch on your thermostat offers the
following selections: COOL, OFF, and HEAT. Your thermostat may also have a fourth selection, AUTO. The air conditioner will not operate when the SYSTEM switch is set at
the OFF position. With the SYSTEM switch set at COOL,
the cooling section of your comfort system will operate when
the indoor temperature rises above the level that you wish to
maintain. With the SYSTEM switch set at the HEAT position, the accessory electric heater will operate automatically
whenever the indoor temperature falls below the level that
you have selected.
The AUTO selection found on some thermostats provides for
automatic changeover betweencoolingandheatingcycles. With
the SYSTEM switch set in the AUTO position, the cooling
mode is activated when the indoor temperature rises above
the thermostat cooling temperature setting, or the heating
mode will be activated when the indoor temperature drops
below the thermostat setting for the heating cycle.
COOLING CYCLE
When operating in the cooling cycle, 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 extra heat and/or
humidity to your home. Your air conditioner will work longer
to keep your home comfortable under these conditions:
• Entrance doors are frequently opened and closed
• Laundry appliances are being operated
• A shower is running
• More than the usual number of people are present in the
home
• More than the normal number of electric lights are in use
• Drapes are open on the sunny side of the home
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