Bryant 598B User Manual

NOTE: Read the entire instruction manual before starting the
installation.
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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.
CAUTION: Puron® (R-410A) systems operate at higher
pressures than standard R-22 systems. Be certain that
service equipment is rated for Puron®. Some R-22
service equipment may not be acceptable. Check with
your distributor.
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.
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 the factory-supplied Puron® air
conditioner liquid line filter drier. Obtain replacement filter driers
from your local distributor or branch.
Fig. 1—Model 598B
A97316
T
WO
S
PEED
Plus
ENERGY SAVING
COMFORT SYSTEM
installation and
start-up instructions
TWO-SPEED PURON® PLUS
AIR CONDITIONING UNIT
Cancels: New II 598B-24-1
12-00
598B
—1—

Bryant 598B Specifications

General

Brand	Bryant
Model	598B
Category	Air Conditioner
Language	English

Summary

Safety Considerations

I. Check Equipment and Job Site

A. Unpack Unit

Instructions for carefully removing the unit from its packaging.

B. Inspect Equipment

Procedures for checking the unit for damage or discrepancies.

II. Install on a Solid, Level Mounting Pad

III. Clearance Requirements

IV. Operating Ambients

V. Install TXV

A. TXV Installation

Detailed steps for mounting and connecting the TXV.

B. Replacing R-22 TXV or Non-Balanced Port Puron TXV on Indoor Coil

Procedure for replacing existing TXVs with Puron-compatible units.

VI. Make Piping Connections

B. Install Liquid-Line Filter Drier

Guidance on installing the liquid line filter drier in the system.

C. Refrigerant Tubing

Connecting vapor and liquid refrigerant lines to the unit.

D. Sweat Connection

Proper methods for making sweat (brazed) connections.

E. Evacuate Refrigerant Tubing and Indoor Coil

Deep Vacuum Method

Method to achieve a deep vacuum (500 microns) for system evacuation.

Triple Evacuation Method

An alternative method for system evacuation using nitrogen.

VII. Make Electrical Connections

A. General

General guidelines for field wiring compliance and safety.

B. Latent Capacity Control (LCC)

Wiring procedures for the Latent Capacity Control system.

VIII. Install Electrical Accessories

A. General

General instructions for accessory installation kits.

B. Latent Capacity Control (LCC)

Explanation of LCC functionality and operation modes.

IX. Make Airflow Selections

A. Airflow Selection for 333AAV Furnaces

How to select airflow settings for 333AAV furnace models.

B. Airflow Selection for 355MAV Furnaces

How to select airflow settings for 355MAV furnace models.

C. Airflow Selection for FK4C or FV4A Fan Coils

How to select airflow settings for FK4C/FV4A fan coil units.

X. Start-Up

A. Unit Charge

Instructions for charging the unit with the correct amount of refrigerant.

B. Cooling Only Procedure

Specific procedure for charging units operating in cooling-only mode.

XI. Check Charge

XII. System Functions and Sequence of Operation

A. Cooling Operation

Description of how the system operates during cooling cycles.

B. Status Function Lights

Information on interpreting status lights for system diagnostics.

C. Factory Defaults

Details on factory-set default configurations.

D. One Minute Speed Change Time Delay

Explanation of the delay before compressor speed changes.

E. Compressor Operation

How the compressor functions in different modes and speeds.

F. Crankcase Heater Operation

Operation of the crankcase heater to protect the compressor.

G. Outdoor Fan Motor Operation

How the outdoor fan motor operates during various system states.

H. Compressor Voltage Failure (6 Flashes)

Troubleshooting steps for compressor voltage failure codes.

I. Pressure Switch Protection

How pressure switches protect the compressor and system.

J. Major Components

Two-Speed Control

Details on the electronic control board for two-speed operation.

Two-Speed Compressor

Information on the characteristics of the two-speed compressor.

Compressor Internal Relief

Explanation of the compressor's internal pressure relief mechanism.

Compressor Control Contactors

How contactors manage compressor operation.

K. Temperature Thermistors

Information on thermistors used for temperature sensing.

XIII. Final Checks

Care and Maintenance