Bryant 702A, 701A User Manual
User Information Manual
SINGLE-PACKAGED
ELECTRIC COOLING UNITS
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: 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. Failure to
follow this warning could result in electrical shock, fire,
personal injury, or death.
WARNING: Before performing recommended maintenance, be sure themainpower switch to unit is turned off.
Electric shock could cause personal injury or death.
701A
702A
Cancels:OM01-59 OM01-62
1- 03
TO START UNIT
I. TURN ON THE ELECTRICAL POWER SUPPLY TO
UNIT.
II. SELECT TEMPERATURE AND SET SYSTEM SWITCH
TO DESIRED MODE.
TO SHUT UNIT OFF
If unit is being shut down because of a malfunction, call your
dealer as soon as possible.
I. SET TEMPERATURE SWITCH TO OFF.
II. TURN OFF THE ELECTRICAL POWER SUPPLY TO
UNIT.
ROUTINE MAINTENANCE
All routine maintenance should be handled by skilled, experienced
personnel. Your dealer can help you establish a standard procedure.
For your safety, keep the unit area clear and free of combustible
materials, gasoline, and other flammable liquids and vapors.
To assure proper functioning of the unit, flow of condenser air
must not be obstructed from reaching the unit. Clearance of at least
48 in. is required from top of unit and on sides except the power
entry side (42 in. clearance) and the duct side (12 in. minimum
clearance).
MAINTENANCE AND CARE FOR THE EQUIPMENT
OWNER
Before proceeding with those things you might want to maintain
yourself, please carefully consider the following:
Fig. 1—Unit 701A and 702A
WARNING:
1. TURN OFF ELECTRICAL POWER TO YOUR UNIT
BEFORE SERVICING OR PERFORMING MAINTENANCE.
2. When removing access panels or performing maintenance functions inside your unit, be aware of sharp
sheet metal parts and screws. Although special care is
taken to reduce sharp edges to a minimum, be extremely careful when handling parts or reaching into
the unit.
A. Air Filters
Air filter(s) should be checked at least every 3 or 4 weeks and
changed or cleaned whenever it becomes dirty. Dirty filters
produce excessive stress on the blower motor and can cause the
motor to overheat and shut down. Table 1 indicates the correct
filter size for your unit. Refer to Fig. 2 to access the filter(s).
To replace or inspect filter(s) (or accessory filter rack when
supplied):
1. Remove the filter access panel using a 5/16-in. nut driver.
2. Remove the filter(s) by pulling the filter(s) out of the unit.
If the filter(s) is dirty, clean or replace with new one.
When installing the new filter(s), note the direction of the airflow
arrows on the filter frame.
If you have difficulty in locating your air filter(s), or if you have
questions concerning proper filter maintenance, contact your
dealer for instructions. When replacing filters, always use the same
size and type of filter that was supplied originally by the installer.
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TABLE 1 — INDOOR-AIR FILTER DATA
UNIT SIZE FILTER SIZE
701A018-030 20x20
701A036-042 20x24
701A048-060 24x30
702A024-030 20x20
702A036 20x24
702A042-060 24x30
WARNING: Never operate your unit without filters in
place. Failure to heed this warning may result in damage
to the blower motor and/or compressor. An accumulation
of dust and lint on internal parts of your unit can cause
loss of efficiency and, in some cases, fire.
B. Fans and Fan Motor
Periodically check the condition of fan wheels and housings and
fan-motor shaft bearings. No lubrication of condenser- or
evaporator-fan bearings or motors is required or recommended.
C. Evaporator and Condenser Coils
Cleaning of the coils should only be done by qualified service
personnel. Contact your dealer for the required annual maintenance.
D. Condensate Drain
The drain pan and condensate drain line should be checked and
cleaned at the same time the cooling coils are checked by your
dealer.
E. Compressor
All compressors are factory-shipped with a normal charge of the
correct type refrigeration grade oil in them and should rarely
require additional oil.
ACCESS PANEL
FILTER ACCESS
PANEL*
*For accessory filter rack.
Fig. 2—Filter Access Panel—Vertical Supply Shown
F. Condenser Fan
WARNING: Do not poke sticks, screwdrivers, or any
other object into revolving fan blades. Severe bodily
injury may result.
The fan must be kept free of all obstructions to ensure proper
cooling. Contact your dealer for any required service.
G. Electrical Controls and Wiring
Electrical controls are difficult to check without proper instrumentations; therefore, if there are any discrepancies in the operating
cycle, contact your dealer and request service.
H. Refrigerant Circuit
The refrigerant circuit is difficult to check for leaks without the
proper equipment; therefore, if inadequate cooling is suspected,
contact your local dealer for service.
WARNING: System under pressure. Relieve pressure
and recover all refrigerant before system repair or final
unit disposal to avoid personal injury or death. Use all
service ports and open all flow-control devices, including
solenoid valves.
I. Unit Panels
After performing any maintenance or service on the unit, be sure
all panels are fastened securely in place to prevent rain from
entering unit cabinet and to prevent disruption of the correct unit
airflow pattern.
REGULAR DEALER MAINTENANCE
In addition to the type of routine maintenance you might be willing
to perform, your unit should be inspected regularly by a properly
trained service technician. An inspection (preferably each year, but
at least every other year) should include the following:
1. Inspection and, if required, cleaning of the condenser and
evaporator coils.
2. Inspection and, if required, cleaning of the evaporator drain
pan.
3. Inspection and cleaning of blower wheel housing and
motor.
4. Inspection of all supply-air and return-air ducts for leaks,
obstructions, and insulation integrity. Any problems found
should be resolved at this time.
5. Inspection of the unit base to ensure that no cracks, gaps,
etc., exist which may cause a hazardous condition.
6. Inspection of the unit casing for signs of deterioration.
7. Inspection of all electrical wiring and components to assure
proper connection.
8. Inspection for leaks in the refrigerant circuit. Pressurecheck to determine appropriate refrigerant charge.
9. Inspection of compressor oil level by service person to
ensure proper oil level is maintained in the compressor
when it is installed and running.
10. Operational check of the unit to determine working conditions. Repair or adjustment should be made at this time.
Your servicing dealer may offer an economical service contract
that covers seasonal inspections. Ask for further details.
Complete service instructions can be found in the unit Installation,
Start-Up and Service Instructions.
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