USER’S INFORMATION MANUAL
MODEL 598A
TWO-SPEED PLUS
CENTRAL AIR CONDITIONER
NOTE TO
INSTALLER:
This manual
must be
left with the
equipment user.
LCD READOUT DISPLAYS
CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE,
UNIT MODE SETTING,
AND FAN MODE SETTING
Thermostat
UP AND DOWN
BUTTONS INCREASE
OR DECREASE THE
DESIRED TEMPERATURE
SETTINGS
RESET/FILTER
FAN
MODE
MODE BUTTON SELECTS
BETWEEN OFF, HEAT,
COOL, AND AUTO OPERATION
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
FAN BUTTON CHOOSES
BETWEEN ON OR AUTO
FAN OPERATION
Fig. 2—Bryant Non-Programmable Two-Speed Thermostat
mechanical air cleaners and/or humidifi-
control over the temperatures of separate
areas of your home.
When Not To Use Your Unit
•
ers offer the added benefits of having the
air continuously cleaned year-round, and
humidified during the winter season.
Do not operate your unit when outdoor
temperatures are below 55°F.
Check Condensate Drain
•
Your air conditioner will remove humid-
ity 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.
Do not expect to see much drainage
if you live in a very dry
OPERATING YOUR
AIR CONDITIONER
Ventilation
•
A system equipped with a heat or
energy recovery ventilator offers the
advantage of exhausting stale air from the
home and allowing fresh air in from the
outdoors while minimizing heat loss.
The operation of your air conditioning
system is controlled by the indoor ther-
mostat. Simply adjust the thermostat to
maintain the indoor temperature at the
level you select. Most thermostats have
three controls: a temperature control
selector, a FAN control, and a SYSTEM
Zoning
•
Your system may also be equipped with a
zoning system which allows individual
environment.
LCD READOUT DISPLAYS
MODE BUTTON SELECTS
BETWEEN OFF, HEAT, COOL,
AND AUTO OPERATION
CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE
OR OUTDOOR TEMPERATURE,
UNIT MODE SETTING,
FAN MODE SETTING,
AND TIME OF DAY
PROGRAM BUTTONS
FOR PROGRAMMING
HEATING/COOLING
CYCLES
Programmable
Thermostat
MODE
FAN
COPY PREVIOUS DAY
CHANGE DAY
PROGRAM
END
UP AND DOWN
BUTTONS INCREASE
OR DECREASE THE
DESIRED TEMPERATURE
SETTINGS
SET TIME/TEMP RESET FILTER
HOLD
SET TIME
BUTTON
FAN BUTTON CHOOSES
BETWEEN ON OR AUTO
FAN OPERATION
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
HOLD BUTTON MAINTAINS
THE CURRENT TEMPERATURE
AND OVERRIDES PROGRAMMED
TEMPERATURE CHANGES
UNTIL RESET
Fig. 3—Bryant Programmable Two-Speed Thermostat
3
or MODE control. Thermostats may vary
from those shown in Fig. 2 and 3.
MAIN
The temperature control selector can be a
dial, lever, or set of buttons that allows
you to establish the temperature that you
wish to maintain for your personal
comfort. Some thermostats possess
two temperature control selectors: one
forsettingthetemperaturedesiredduring
the cooling cycle, and one to set the heat-
ing operation temperature.
ON
OFF
The FAN control offers two options for
controllingtheindoorblower;AUTOand
ON. When set to AUTO, the blower will
run only while the thermostat operates
the cooling or heating section. When
the FAN control is set to ON, the blower
will run continuously—regardless of
whether the cooling or heating section is
operating.
Fig. 4—Main Electrical
Disconnect
When properly used, the programming
can result in energy savings on your
home’s heating and cooling.
The following conditions typically add
extra heat and/or humidity to your home
and make your cooling unit work longer
to keep your home comfortable:
Typically, the SYSTEM or MODE con-
trol on your thermostat offers the follow-
ing selections; COOL, OFF, AUTO and
HEAT. Neither the cooling nor heating
section will operate when the SYSTEM
or MODE control is set to OFF. With the
SYSTEM or MODE control set to
COOL, the cooling section of your com-
fort system will operate when the indoor
temperature rises above the level that you
wish to maintain. With the SYSTEM or
MODE control set to HEAT, the heating
section will operate automatically when
the indoor temperature falls below the
level that you have selected.
NOTE: Your 2-speed air conditioning
system has several special features built in
to protect the unit.
• Entrance doors are frequently opened
and closed.
• 5-MINUTE TIME DELAY—Unit
will delay operation upon initial start-
up or short-cycling of the indoor
thermostat.
• Laundry appliances are being operated.
• A shower is running.
• More than the usual number of people
are present in the home.
• 1-MINUTE TIME DELAY—When
changing speeds from low to high, or
high to low, there is a 1-minute time
delay. During the speed change delay,
the outdoor fan will continue to run.
• More than the normal number of
electric lights are in use.
• Drapes are open on the sunny side of
the home.
The AUTO selection found on some
thermostats provides for automatic
changeover between cooling and heating
cycles. With the SYSTEM or MODE
control set to AUTO, 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 below the thermostat
setting for the heating cycle.
• 2-MINUTE LOW-SPEED MINI-
MUM—If the unit has not operated
within the past 30 minutes, upon the
next cooling demand, it will operate for
a minimum of 2 minutes on low speed.
HEATING CYCLE
With the SYSTEM or MODE control of
your indoor thermostat set to HEAT, the
heating section of your home comfort
system will operate until room temper-
ature is raised to the level you have se-
lected. Of course, the heating unit will
have to operate for longer periods to main-
tain a comfortable environment on cooler
days and nights than on moderate ones.
If you wish to program your accessory
electronic indoor thermostat, refer to
thermostat Installation Instructions.
COOLING CYCLE
Your thermostat may be PROGRAM-
MABLE or NON-PROGRAMMABLE.
A NON-PROGRAMMABLE thermo-
stat does not allow the temperature set-
tings to be varied throughout the day or
week without physically changing the
settings.A PROGRAMMABLE thermo-
stat allows various daily temperature
changes to be preset. During the winter
forexample, youmaywishtosetbackthe
temperature of your home at night, then
have the temperature return to normal
prior to waking up. The home’s tempera-
ture can then be lowered again during the
day when no one is at home, but again be
at peak comfort level when your family
returns home. During the summer, the
opposite changes might be programmed.
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.Your
2-speed air conditioner spends about
80% of its time operating in low speed.
This means that it will operate for longer
periods of time than a single-speed air
conditioner even on moderate days. This
longer operational time in low speed
results in higher efficiency operation,
lower operating noise, and better humid-
ity control than a single-speed air con-
ditioner could achieve.
Refer to your furnace Owner's Manual for
specific information on heating operation.
PERFORMING ROUTINE
MAINTENANCE
With the proper maintenance and care,
your air conditioning unit will operate
economically and dependably. Main-
tenance can be accomplished easily by
referring to the following directions.
However, before performing mainte-
nance, consider these important safety
precautions below.
4
tensioner, slide the tray into the unit, then
secure the thumbscrews.
approximately every 3 months, you will
be adding life to your unit. Consult your
installing contractor for proper intervals/
procedures for your geographic area or
service contact.
!
WARNING
To prevent personal injury or
death disconnect all electrical
power to the air conditioner be-
fore removing access panels or
performing any maintenance.
Disconnect power to both the
indoor and outdoor units. Note:
there may be more than 1 elec-
trical disconnect switch.
INDOOR COIL
If the indoor coil has only been operated
with a clean filter in place, it should
require minimal cleaning.
UNIT SUPPORT
Your split-system outdoor unit should be
maintained at a level position. If its sup-
port shifts or settles so that the unit is
no longer level, you should correct the
condition. Relevel it promptly to assure
that water drains out of the unit. If you
notice that water or ice collects beneath
the unit, arrange for it to be drained away
from the unit.
If coil cleaning is required, call your
dealer for service. It may be necessary to
clean the coil with a detergent solution
and rinse it with water, which could
require removing the coil. Do not attempt
this yourself.
!
CAUTION
OUTDOOR COIL
Although special care has
been taken to minimize sharp
edges in the construction of
your unit, be extremely careful
when handling parts or reach-
ing into the unit.
If grass clippings, leaves, shrubbery, and
debris are kept away from the outdoor
unit, minimal care should keep the sys-
tem functioning properly. For proper
drainage, debris must be removed period-
ically from the base pan. However, if the
outdoor coil becomes dirty, use a vacuum
cleaner with soft brush attachment to
clean the exterior surface. Vacuum coil
surface using an up and down motion. Be
careful not to bend or damage coil fins. If
dirt is deep in the coil, contact your dealer
for service. The outdoor fan motor may
have to be disconnected and the top panel
removed to gain access to the coil for
thorough cleaning. Do not attempt this
yourself.
BEFORE YOU REQUEST
A SERVICE CALL
CHECK FOR THESE EASILY
SOLVED PROBLEMS:
CHECK THE AIR FILTER
A dirty air filter will cause excessive
strain on the compressor and blower
motor. This can cause the components to
overheat and automatically shut down. In
the extreme, the components will fail and
need to be replaced. To avoid inefficient
operation or failure of your unit, CHECK
THE FILTER(S) EVERY 3 TO 4
WEEKS. Replace filter(s) when neces-
sary, or clean the filter(s) if you have the
reusable type.
• Check the indoor and outdoor discon-
nect switches. Verify that circuit breakers
are on or that fuses have not blown.
• Check for sufficient airflow. Check the
air filter(s) for any accumulations of dirt.
Check for blocked return-air or supply-
air registers. Be sure registers are open
and unobstructed.
• Check the settings on your indoor ther-
mostat. If you desire cooling, see that the
temperature control selector is set below
room temperature and the SYSTEM or
MODE control is set to COOL orAUTO.
If you require heat, be sure the tempera-
ture control selector is set above room
temperature and the SYSTEM or MODE
control is set to HEAT or AUTO. The
FAN control should be set to ON for con-
tinuous blower operation orAUTO if you
wish blower to function only while the
unit is operating.
OUTDOOR COIL—
SEA COAST
Disposable filters should be replaced by
similar, new filters of the same dimensions.
If your unit is located near the ocean, spe-
cial maintenance is required. Ocean mist/
breeze carries salt, which is corrosive to
most metals. Although your new unit is
made out of galvanized metal and is pro-
tected by top-grade paint, you should
take the precaution of additional mainte-
nance by periodically washing the unit.
By washing all exposed surfaces and coil
Reusable, permanent filters should
be washed in a solution of cold water
and mild detergent, then rinsed and
thoroughly dried. THE FILTER MUST
BE COMPLETELY DRY BEFORE
BEING REINSTALLED. To avoid pro-
longed shutdown of your unit while a
filter is drying, you should have an extra
filter on hand. This would allow you to
switch between the two with minimal
downtimeforyourcomfortsystem. Extra
filters may be purchased from your
dealer.
There are no filters in the outdoor unit of
a split system. If your indoor unit is a gas
or oil furnace, refer to your furnace
Owner's Manual for filter location and
procedures for replacement or cleaning.
If your system includes an indoor fan-
coil unit, the filter is located in the unit
where it connects with the return-air duct
or plenum. (See Fig. 5.) Remove the
two black thumbscrews (or plastic pull
rings on modular fan coil), then pull out
the rack and filter. The clean filter must
be reinstalled with the cross-hatched
(when used) side facing the blower. With
the clean filter in place, secure the spring
Fig. 5—Removing Filter from
Fan Coil Unit
5
• Check note concerning special features
and time delays in “OperatingYour Air
Conditioner” section.
• Inspection and cleaning of the blower
wheel, housing, and motor.
• Inspection and, if required, cleaning of
If your comfort system still fails to oper-
ate, contact your servicing dealer for
troubleshooting and repairs. Specify
your apparent problem, and state the
model and serial numbers of your equip-
ment. (Youshouldhavethemrecordedon
the last page of this booklet.) With this
information, your dealer may be able to
offer helpful suggestions over the phone
or save valuable time through knowl-
edgeable preparation for the service call.
indoor and outdoor coils.
• Inspection of the indoor coil drain pan,
plus the primary and secondary drain
lines. If supplied, the auxiliary drain pan
and line should be inspected at this time.
Service should include cleaning if
required.
• A check of all electrical wiring and
connections.
• A check for secure physical connec-
tions of individual components within
units.
FOR THE RECORD
REGULAR DEALER
MAINTENANCE
In addition to the routine maintenance that
you perform, your home comfort system
should be inspected regularly by a properly
trained service technician. The inspection
(preferably each year, but at least every
other year) should include the following:
Record the model, product, and serial
numbers of your new equipment in
the spaces provided. This information,
along with the other ready-reference
facts requested, will be necessary if
you ever require information or
service.
• Operational check of the air condition-
ing system to determine actual working
condition. Necessary repair and/or adjust-
ment should be performed at this time.
Your servicing dealer may offer an eco-
nomical service contract that covers sea-
sonal inspections. Ask for further details
• Routine inspection of air filter(s).
Replacement or cleaning as required.
6
7
INSTALLATION DATA
Date Installed
MODULAR INDOOR UNIT, if Applicable:
Blower—Product No.
Model No.
Dealer Name
Address
City
Serial No.
State
Zip
Telephone
Coil—Product No.
Model No.
SPLIT-SYSTEM
Serial No.
OUTDOOR UNIT:
Product No.
Model No.
Heater—Product No.
Model No.
Serial No.
Serial No.
INDOOR UNIT OR COIL:
Product No.
ACCESSORIES
Product No.
Model No.
Product No.
Serial No.
Product No.
Product No.
Product No.
Cancels: OM01-16
OM01-18
11-98
© 1998 Bryant Heating & Cooling Systems, 7310 W. Morris St. Indpls., IN 46231
Printed in U.S.A.
Catalog No. 5359-804
8
|