Bryant 598A Series D Installation And Start-Up Instructions Manual
Bryant 598A Series D Installation And Start-Up Instructions Manual

Bryant 598A Series D Installation And Start-Up Instructions Manual

Two-speed split-system air conditioner

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NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, 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. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions thor-
oughly and follow all warnings or cautions included in literature
and attached to the unit. Consult local building codes and National
Electrical Code (NEC) for special requirements.
Recognize safety information. This is the safety-alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand these signal words; DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER 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 would result in minor personal
injury or product and property damage.
WARNING: Before installing, modifying, or servicing
system, main electrical disconnect switch must be in the
OFF position. There may be more than 1 disconnect
switch. Lock out and tag switch with a suitable warning
label. Electrical shock can cause personal injury or death.
INSTALLATION RECOMMENDATIONS
NOTE: In some cases noise in the living area has been traced to
gas pulsations from improper installation of equipment.
1. Locate unit away from windows, patios, decks, etc. where
unit operation sound may disturb customer.
2. Ensure that vapor and liquid tube diameters are appropriate
to capacity of unit.
3. Run refrigerant tubes as directly as possible by avoiding
unnecessary turns and bends.
4. Leave some slack between structure and unit to absorb
vibration.
5. When passing refrigerant tubes through the wall, seal
opening with RTV or other pliable silicon-based caulk. (See
Fig. 2.)
6. Avoid direct tubing contact with water pipes, duct work,
floor joists, wall studs, floors, and walls.
installation and
start-up instructions
TWO-SPEED
SPLIT-SYSTEM
AIR CONDITIONER
.
—1—
Cancels: II 598A-36-6
Fig. 1—Model 598A
7. Do not suspend refrigerant tubing from joists and studs with
a rigid wire or strap which comes in direct contact with
tubing. (See Fig. 2.)
8. Ensure that tubing insulation is pliable and completely
surrounds vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and
conform to shape of tubing insulation. (See Fig. 2.)
10. Isolate hanger straps from insulation by using metal sleeves
bent to conform to shape of insulation.
When outdoor unit is connected to factory-approved indoor unit,
outdoor unit contains system refrigerant charge for operation with
indoor unit of the same size when connected by 15 ft of
field-supplied or factory accessory tubing. For proper unit opera-
tion, check refrigerant charge using charging information located
on control box cover.
IMPORTANT: Maximum liquid-line size is 3/8-in. O.D. for all
residential applications.
IMPORTANT: Always install a liquid-line filter drier. Refer to
Product Data Sheet for appropriate part number. Obtain filter
driers from your local dealer or branch.
INSTALLATION
I. CHECK EQUIPMENT AND JOB SITE
A. Unpack Unit
Move to final location. Remove carton taking care not to damage
unit.
B. Inspect Equipment
File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate on unit corner
panel. It contains information needed to properly install unit.
Check rating plate to be sure unit matches job specifications.
598A
Series D
II 598A-36-7
10-98
A98538

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Summary of Contents for Bryant 598A Series D

  • Page 1 installation and 598A start-up instructions Series D TWO-SPEED SPLIT-SYSTEM AIR CONDITIONER Cancels: II 598A-36-6 II 598A-36-7 10-98 NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage.
  • Page 2: Clearance Requirements

    Roof mounted units exposed to winds above 5 mph may require NOTE: Avoid contact between tubing and structure wind baffles. Consult Low-Ambient Guideline for wind baffle OUTDOOR WALL INDOOR WALL construction. NOTE: Unit must be level to within ± 2° (± 3/8 in./ft) per CAULK LIQUID TUBE compressor manufacturer specifications.
  • Page 3: Make Piping Connections

    B. Refrigerant Tubing 10 O'CLOCK 2 O'CLOCK Connect tubing to fittings on outdoor unit vapor and liquid service valves. (See Table 1.) Use refrigerant grade tubing. SENSING BULB C. Sweat Connection STRAP CAUTION: To avoid valve damage while brazing, ser- vice valves must be wrapped in a heat-sinking material such as a wet cloth.
  • Page 4: Install Electrical Accessories

    If relay is de-energized, the system operates on high-speed compressor and low-speed airflow until humidistat closes. Fig. 7L and 7Q shows the wiring with a Bryant Thermi- distat which controls temperature and humidity level without the need for an additional humidistat and relay.
  • Page 5 BRYANT BRYANT PROGRAMMABLE NON-PROGRAMMABLE THERMOSTAT TYPICAL TWO-SPEED THERMOSTAT TYPICAL TWO-SPEED MODEL 2S FAN COIL AIR CONDITIONER FAN COIL MODEL 2S AIR CONDITIONER 24 VAC HOT 24 VAC HOT 24 VAC COMM HEAT STAGE 1 W/W1 HEAT STAGE 1 W/W1 COOL STAGE 2...
  • Page 6 BRYANT PROGRAMMABLE BRYANT THERMOSTAT FK4C TWO-SPEED NON-PROGRAMMABLE MODEL 2S FAN COIL AIR CONDITIONER THERMOSTAT FK4C TWO-SPEED FAN COIL AIR CONDITIONER MODEL 2S JUMPER 24 VAC HOT J1 JUMPER 24 VAC HOT 24 VAC COMM COOL STAGE 1 Y1/W2 COOL STAGE 2...
  • Page 7 BRYANT NON-PROGRAMMABLE BRYANT SINGLE-STAGE THERMOSTAT TWO-SPEED PROGRAMMABLE SINGLE-STAGE TWO-SPEED MODEL 2S FURNACE AIR CONDITIONER THERMOSTAT FURNACE AIR CONDITIONER MODEL 2S 24 VAC HOT COOL STAGE 1 Y1/W2 24 VAC COMM HEAT STAGE 1 W/W1 HEAT STAGE 1 W/W1 COOL STAGE 2...
  • Page 8 BRYANT BRYANT NON-PROGRAMMABLE TWO-STAGE PROGRAMMABLE TWO-STAGE THERMOSTAT FURNACE WITH PSC TWO-SPEED THERMOSTAT FURNACE WITH PSC TWO-SPEED MODEL 2S BLOWER MOTOR AIR CONDITIONER MODEL 2S BLOWER MOTOR AIR CONDITIONER 24 VAC HOT Y1 * COOL STAGE 1 Y1/W2 24 VAC COMM...
  • Page 9 TWO-STAGE BRYANT VARIABLE-SPEED NON-PROGRAMMABLE BRYANT TWO-STAGE THERMOSTAT FURNACE WITH ICM TWO-SPEED VARIABLE-SPEED PROGRAMMABLE BLOWER MOTOR MODEL 2S AIR CONDITIONER TWO-SPEED THERMOSTAT FURNACE WITH ICM AIR CONDITIONER MODEL 2S BLOWER MOTOR 24 VAC HOT Y1 * COOL STAGE 1 Y1/W2 24 VAC COMM...
  • Page 10 BRYANT VARIABLE-SPEED VARIABLE SPEED THERMIDISTAT CONDENSING TWO-SPEED 80% NON-CONDENSING FURNACE AIR CONDITIONER CONTROL FURNACE BOARD BRYANT THERMIDISTAT O/W2 HEAT STAGE 2 CONTROL TWO-SPEED FURNACE Y1/W2 COOL STAGE 1 AIR CONDITIONER COOL STAGE 1 Y1/W2 BOARD W/W1 HEAT STAGE 1 W/W1...
  • Page 11: Wiring Diagram Notes

    WIRING DIAGRAM NOTES: 1. BRYANT THERMOSTAT WIRING DIAGRAMS ARE ONLY ACCURATE FOR MODEL NUMBERS BEGINNING WITH TSTAT _ _ _ _ _ _ _. 2. WIRING MUST CONFORM TO NEC OR LOCAL CODES. 3. CONNECT 24-V FIELD WIRING TO FACTORY-PROVIDED STRIPPED LEADS.
  • Page 12: Make Airflow Selections

    IX. MAKE AIRFLOW SELECTIONS For adjustments to the manual switches labeled A/C and CF and recommended switch positions, refer to Table 4. High-speed A. Airflow Selection for 333(B,J)AV Furnaces airflow is determined by the position of the A/C switches, and The 333(B,J)AV Non-Condensing Variable-Speed Furnaces pro- low-speed airflow is determined by the position of the CF vide high- and low-speed blower operation to match the capacities...
  • Page 13: Check Charge

    NOTE: Bryant electronic thermostats are equipped with a 15- minute staging timer. This timer prevents the 2-speed system from operating at high speed until unit has been operating in low speed for 15 minutes unless there is at least a 5°F difference between...
  • Page 14: System Functions And Sequence Of Operation

    3 flashes Outdoor thermistor failure Mechanical thermostats operate with a staging differential of 2°F w/pause (droop). Bryant electronic thermostats are droopless, meaning that 4 flashes Used for heat pump only they maintain room temperature at set point without latching w/pause Outdoor coil thermistor failure second stage.
  • Page 15: Speed Control

    HIGH VOLTAGE LOW VOLTAGE WARNING: Interlocked contactor coils are 240v, high voltage. Electrical shock can cause personal injury or death. LM1 LM2 DFT1 DFT2 T1 S1 PW2 PW1 CAUTION: Do not bypass interlocks of contactors, as compressor damage will occur. SPEED-UP STAGE 2 DEFROST...
  • Page 16: Service Training

    Course descriptions and schedules are in our catalog. CALL FOR FREE CATALOG 1-800-962-9212 [ ] Packaged Service Training [ ] Classroom Service Training A94328 © 1998 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 —16— Printed in U.S.A. 598a367 Catalog No. 5359-803...

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