Bryant 604A Assembly Instructions

NOTE TO INSTALLER: This manual should be left with the
equipment owner.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and liquids
in the vicinity of this or any other appliance.
WARNING: FIRE, EXPLOSION, ELECTRICAL
SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death or property damage.
Do not use this unit if any part has been under water.
Immediately call a qualified service technician to inspect
the unit and to replace any part of the control system
which has been under water.
WARNING: ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death.
Before performing recommended maintenance, be sure
the main power switch to unit is turned off.
WELCOME TO EFFICIENT YEAR-ROUND COMFORT
Congratulations on your excellent choice and sound investment in
year-round home comfort!
Your new heat pump 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 heat
pump products available today. To assure its dependability, spend
just a few minutes with this booklet now to learn about the
operation of your heat pump, and the small amount of maintenance
it takes to keep it operating at its peak efficiency. With minimal
care, your new heat pump will provide you and your family with
year-round home comfort—both now and for years to come.
SAFETY CONSIDERATIONS
Recognize safety information. This is the safety-alert symbol .
When you see this symbol on unit or in instructions and manuals,
be alert to potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which may result in minor personal injury
or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
WARNING: FIRE AND ELECTRICAL SHOCK HAZ-
ARD
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock, or other conditions which could cause serious
injury, death or property damage. Consult a qualified
installer, service agency, or your distributor or dealer for
information or assistance. The qualified installer or
agency must use factory-authorized kits or accessories
when modifying this product.
YOUR COMFORT SYSTEM
A. Identifying Your System
Take the time to familiarize yourself with your packaged heat
pump type of system. This knowledge will be of use in under-
standing the basic operation of your new heat pump. The 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. Record them for future reference in the space provided at the
end of this booklet.
IMPORTANT FACTS
To better protect your investment and to eliminate unnecessary
calls, familiarize yourself with the following facts:
1. Your heat pump 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.
Fig. 1—Unit 604A
A Guide to Operating and
Maintaining Your Heat Pump
SINGLE-PACKAGE HEAT PUMP
Cancels: New OM01-68
8-05
604A
—1—

2. Supply-air and return-air registers should not be blocked.
Drapes, furniture, and toys are some of the items commonly
found obstructing registers. Restricted airflow lessens the
unit’s efficiency and life span.
3. The outdoor unit must have unrestricted airflow. Do not
cover the unit, lean anything against it, or stand on it. Do
not allow grass clippings, leaves, or other debris to accu-
mulate around on top of the unit. Maintain a 12-in.
minimum clearance between the outdoor unit and tall grass,
vines, shrubs, etc.
4. Your multipurpose indoor thermostat is the control center
for your heat pump 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
(See Fig. 4).
5. During heating, increasing the thermostat setting more than
2 degrees may cause the supplemental heaters to be turned
on for a short period of time to satisfy the thermostat.
Needless use of the supplementary heat reduces potential
energy savings.
6. 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. air pockets may be too cool or warm for your
liking. Continuous fan operation minimizes any tempera-
ture differences. Also, systems equipped with electronic or
mechanical air cleaners and/or humidifiers offer the added
benefits of having the air continuously cleaned year-round
and humidified during the winter season.
7. 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 minimiz-
ing heat loss.
8. Your system may also be equipped with a zoning system
which allows individual control over the temperatures of
separate areas of your home.
9. Your heat pump 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. 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.
10. During the heating cycle, air from your registers may seem
cooler than you might first expect. This is because your heat
pump delivers a constant flow of air at around 90˚F to 105˚F
instead of sudden bursts of hot air as with a conventional
furnace. This air may feel cooler because it is slightly less
than your skin temperature. However, it is sufficiently
warm to keep you comfortable.
11. Ice or frost will tend to form on the coil during the winter
heating operation. Your heat pump is designed to automati-
cally melt the ice. When in this defrost cycle, it is normal
for steam or fog to rise from the outdoor unit. Do not be
alarmed!
12. Do not operate your unit in cooling mode when outdoor
temperatures are below 55˚F unless your unit was modified
for low-ambient operation.
13. Do not operate your unit in heating mode when outdoor
temperatures are above 66˚F unless you set your thermostat
to emergency heat mode.
WARNING: FIRE AND ELECTRICAL HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
To prevent serious injury, death, or property damage,
read and follow all instructions and warnings, including
labels shipped with or attached to unit before operating
your new heat pump.
OPERATING YOUR HEAT PUMP
The operation of your heat pump 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 heat pump systems have 3 controls: a temperature
control selector, a FAN control, and a SYSTEM or MODE control.
A. Cooling Mode
When operating in cooling mode, your heat pump will run in
cooling mode until the indoor temperature is lowered to the level
you have selected. On extremely hot days, your heat pump 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 heat pump will work longer to keep
your home comfortable under these conditions:
1. Entrance doors are frequently opened and closed
2. Laundry appliances are being operated
3. A shower is running
4. More than the usual number of people are present in the
home
5. More than the normal number of electric lights are in use
6. Drapes are open on the sunny side of the home
B. Heating Mode
With the SYSTEM or MODE control of your indoor thermostat set
to HEAT, your heat pump will run in heating mode until room
temperature is raised to the level you have selected. Of course,
your heat pump will have to operate for longer periods to maintain
a comfortable environment on cooler days and nights than on
moderate ones.
Fig. 2—Typical Installation
INDOOR
THERMOSTAT
DISCONNECT
PER NEC
FROM
POWER
SOURCE
RETURN
AIR
TOP COVER
Fig. 3—Bryant Non-Programmable Thermostat
—2—

C. Supplemental Heat
Your heat pump is your primary heating source. Your system may
also be equipped with a supplemental heating source such as
electric heat. On cold days and nights, your system will automati-
cally turn on the supplemental heat in order to maintain the level
of comfort you have selected.
When your heat pump needs additional heat to keep you comfort-
able, your Carrier electronic thermostat will turn on the supple-
mental heat (if equipped) and will display the “AUX HT” message.
D. Defrost Mode
When your heat pump is providing heat to your home and the
outdoor temperature drops below 45˚F, moisture may begin to
freeze on the surface of the coil. If allowed to build up, this ice
would impede airflow across the coil and reduce the amount of
heat absorbed from the outside air. So, to maintain energy-efficient
operation, your heat pump has an automatic defrost mode. The
defrost mode starts at a preset time interval of 90 minutes,
although, it may be reset to either 30 or 50 minutes. Defrost will
start at the preset time only if the ice is sufficient to interfere with
normal heating operation. After the ice is melted from the coil, or
after a maximum of 10 minutes in defrost mode, the unit
automatically switches back to normal heating operation.
Do not be alarmed if steam or fog appears at the outdoor unit
during defrost mode. Water vapor from the melting ice may
condense into a mist in the cold outside air. During certain weather
conditions such as heavy snow and freezing rain it is not
uncommon for ice to build up on the unit grille. This is normal for
these weather conditions. Do not attempt to remove the ice from
the unit grille. This condition will not affect the proper function of
the unit and will clear a few days.
E. Emergency Heat Mode
This allows your supplemental heating source to keep your home
or office warm until your heat pump can be serviced. Also, if the
electricity to your heat pump has been off for more than 30
minutes, switch your thermostat to EHEAT mode before restarting
your heat pump. Leave the system in EHEAT mode for an amount
of time equal to the power outage. It is not necessary to exceed 12
hrs. (If you cannot determine how long the power has been off,
leave the system in EHEAT mode for 8 hrs.)
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your heat pump will
operate economically and dependably. Maintenance can be accom-
plished easily by referring to the following directions. However,
before performing maintenance, consider these important safety
precautions:
WARNING: ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury and/or death.
Disconnect all electrical power to the indoor air handler
or furnace before removing access panels to perform any
maintenance. Disconnect power to both the indoor and
outdoor units. Note: There may be more than 1 electrical
disconnect switch.
CAUTION: PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal
injury.
Although special care has been taken to minimize sharp
edges in the construction of your unit, to avoid injury be
extremely careful when handling parts or reaching into
the unit.
A. 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 worst case, the components will
fail and need to be replaced. To avoid inefficient or failed
operation of your unit, CHECK THE FILTER(S) EVERY 3
MONTHS. Replace filter(s) when necessary, or clean the filter(s)
if you have the reusable type.
Disposable filters should be replaced by similar, new filters of the
same dimensions.
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 prolonged shutdown of your unit while
a filter is drying, you should have an extra filter on hand. This
allows you to rotate between the two with minimal downtime for
your comfort system. Extra filters may be purchased from your
dealer.
The filters(s) and filter rack for a packaged system are supplied
and installed by the contractor or dealer. Typically, the filter(s) and
rack are located in the return-air duct at the outdoor unit or behind
the return-air grille(s). Have your dealer show you the location of
your filter(s) and the procedures for removal and replacement.
If your system includes a high efficiency or electronic air cleaner,
refer to air cleaner User’s Manual for proper filter cleaning or
replacement.
B. Outdoor Coil
If grass clippings, leaves, shrubbery, and debris are kept away
from the unit, minimal care should be sufficient to keep the system
functioning properly. However, if the outdoor coil becomes dirty,
use a vacuum cleaner or shop vac 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 fins.
If dirt is deep in the coil, contact your dealer for service. Do not
attempt this yourself.
C. Outdoor Coil—Sea Coast
If your unit is located near the ocean, special maintenance is
required. Ocean mist/breeze carries salt, which is corrosive to most
metals. Although your new unit is made out of galvanized metal
Fig. 4—Main Electrical Disconnect A92135
MAIN
ON
OFF
TABLE 1—FILTER SIZE DATA
UNIT SIZE FILTER SIZE
604A024-030 20x24
604A036-060 24x36
—3—

and is protected by top-grade paint, you should take the precaution
of additional maintenance which consists of periodically washing
the unit. By washing all exposed surfaces and coil, you will be
adding additional life to your unit. Please consult your installing
contractor for proper intervals/procedures for your geographic area
or service contact.
D. UNIT SUPPORT
Your packaged heat pump unit should be maintained at a level
position. If its support should shift or settle so that the unit is no
longer level, you should correct the condition. Relevel it promptly
to assure 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.
BEFORE YOUR REQUEST A "SERVICE CALL"
CHECK FOR THESE EASILY SOLVED PROBLEMS:
1. Check the indoor and outdoor disconnect switches. Verify
that circuit breakers are ON or that fuses have not blown.
2. 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 unob-
structed.
3. Check the settings on your indoor thermostat. If you desire
cooling, make sure that the temperature control selector is
set below room temperature and the SYSTEM or MODE
control is set to COOL or AUTO. If you require warmth,
make sure that the temperature 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 continuous blower operation or AUTO if you wish
blower to function only while your heat pump is operating.
If your comfort system still fails to operate, turn your
system off and contact your servicing dealer for trouble-
shooting and repairs. Specify your apparent problem, and
state the model and serial number of your equipment. (You
should have them recorded on 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 knowledgeable preparation for the service call.
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 twice each
year, but at least once every year) should include the following:
1. Routine inspection of air filter(s). Replacement or cleaning
as required.
2. Inspection and cleaning of the blower wheel, housing, and
motor as required.
3. Inspection and, if required, cleaning of coils.
4. A check of all electrical wiring and connections.
5. A check for secure physical connections of individual
components within unit.
6. Operational check of the heat pump system to determine
actual working condition. Necessary repair and/or adjust-
ment should be performed at this time.
7. Your servicing dealer may offer an economical service
contract that covers seasonal inspections. Ask for further
details.
WARRANTIES
You have purchased a 604A series unit. Be sure to read the
warranty at the back of this booklet carefully to determine the
coverage for your unit.
FOR THE RECORD
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 should you
ever require information or service.
INSTALLATION DATA
Date Installed ..................................................................................
Dealer’s Name.................................................................................
Address ............................................................................................
City...................................................................................................
State/Zip ..........................................................................................
Telephone ........................................................................................
UNIT DATA
Unit Model ......................................................................................
Unit Serial Number........................................................................
Heater, if applicable:
Part Number ...................................................................................
Kilowatt Rating ..............................................................................
© 2005 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 —4— Printed in U.S.A. Catalog No. OM01-68