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Bryant 566D - User Manual

Bryant 566D
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Form No. PDS 569D.72.2
COMMERCIAL AIR-COOLED
CONDENSING UNITS WITH
524A AIR-HANDLING UNITS
FEATURES/BENEFITS
These dependable split systems match Bryant’s indoor-air han-
dlers and direct-expansion coils with outdoor condensing units
for a wide selection of commercial cooling solutions.
CONSTRUCTED FOR LONG LIFE The569D(singlecir-
cuit, scroll compressor), 576C (single circuit semi-hermetic
compressor), 569F/566E (dual circuit, scroll compressor) and
566D (semi-hermetic compressor) models are designed and
built to last. The copper tube-aluminum fin outdoor coil
construction provides years of trouble-free operation. Where
conditions require them, E-coated coils and pre-coated fin coils
are also available. Cabinets are constructed of prepainted
galvanized steel, delivering unparalleled protection from the
environment. Inside and outside surfaces are protected to
ensure long life, good looks, and reliable operation. Safety con-
trols are used for enhanced system protection and reliability.
EFFICIENT OPERATION Building owners will appreciate
the high unit EERs (Energy Efficiency Ratios) offered by these
condensing units. These units provide greater efficiency than
similar units in the marketplace, which translates into year-
round operating savings.
CONTROLS FOR PERFORMANCE DEPENDABILITY The
condensing units offer the building owner operating controls
and components designed for performance dependability. The
highly efficient hermetic and semi-hermetic compressors are
engineered for long life and durability. The compressors
include overload protection and vibration isolation for enhance-
ment of quiet operation. The high-pressure switch protects the
entire refrigeration system from abnormally high operating
pressures. A low-pressure switch protects the system from
low-pressure conditions, including loss of charge.
The 569F120 and 566E150-240 units feature 2 scroll compres-
sors and 2 refrigerant circuits that provide continuous air
conditioning and design flexibility. These units also include
Cycle-LOC™ anti-short-cycling protection which helps to
protect the units against compressor failure.
All units include a crankcase heater to eliminate liquid slugging
at start-up. Units with semi-hermetic compressors are also
equipped with an oil-level sight glass.
Latest safety standards are assured through UL and UL
Canada approvals.
INNOVATIVE BRYANT PACKAGED AIR HANDLERS ARE
CUSTOM MATCHED TO THE CONDENSING UNITS The
524A Series has excellent fan performance, efficient direct-
expansion (DX) coils, a unique combination of indoor-air qual-
ity features, and easy installation. Its versatility and state-of-
the-art features help to ensure that your split system provides
economical performance now and in the future.
Indoor-Air Quality (IAQ) Features The unique combination
of IAQ features in the 524A Series air handlers help to ensure
that only clean, fresh, conditioned air is delivered to the occu-
pied space.
Direct-expansion (DX) cooling coils prevent the build-up of
humidity in the room, even during part-load conditions. Unit
sizes of 10 tons and above feature dual-circuit coils for
improved temperature control.
Standard 2-in. disposable filters remove dust and airborne par-
ticles from the occupied space for cleaner air.
Models 566D, 566E, 569D,
569F, 576C
with 524A
6to20Tons
569D072-120
576C120
569F120
566D150-240
566E150-240
524A072-300

Other manuals for Bryant 566D

Questions and Answers

  • S
    Sarah EnglishAug 21, 2025
    What to do if Bryant 566D Air Conditioner compressor is running but cooling is insufficient?
    • V
      Vanessa BurnettAug 21, 2025
      If the compressor is running but cooling is insufficient, it could be due to suction pressure issues. If the suction pressure is low: * Add refrigerant. * Check the refrigerant charge and outdoor-air fan thermostat settings. * Clean or replace the filters. * Replace the power head. * Check the low-pressure setting. * Remove any obstructions. If the suction pressure is high: * Check the unloader adjustments and setting. * Check for open doors or windows near the fan coil.
  • D
    Daniel Collins PhDAug 23, 2025
    Why does my Bryant 566D Air Conditioner unit operate too long or continuously?
    • Y
      ynorrisAug 23, 2025
      If the unit operates too long or continuously, try the following: 1. Add refrigerant. 2. Replace the control. 3. Purge and evacuate the system. 4. Clean or replace components as needed.
  • L
    Lauren RiveraAug 26, 2025
    What causes a Bryant 566D compressor to lose oil?
    • A
      Alex PatelAug 26, 2025
      If the compressor loses oil: 1. Repair any leaks. 2. Check the wiring and relays. Check the heater and replace if defective. 3. Check the piping for oil return and replace if necessary.
  • C
    Cole SmithAug 28, 2025
    What causes a frosted suction line on my Bryant Air Conditioner?
    • A
      anthonymcgeeAug 28, 2025
      If the suction line is frosted, adjust the expansion valve.
  • S
    Susan StevensonAug 30, 2025
    Why is the liquid line hot on my Bryant 566D?
    • D
      dlevineAug 31, 2025
      If the liquid line is hot: 1. Repair any leaks and recharge the system. 2. Adjust the expansion valve.
  • B
    Brian RobinsonSep 2, 2025
    What causes a frosted liquid line on my Bryant 566D?
    • C
      carterdonaldSep 2, 2025
      If the liquid line is frosted: 1. Remove any restrictions or replace the affected component. 2. Replace the valve.
  • A
    Anthony BrownSep 5, 2025
    Why does my Bryant 566D compressor stop on high-pressure switch?
    • B
      Brad WagnerSep 5, 2025
      The compressor might be stopping due to the high-pressure switch. This could be related to the outdoor fan. If the outdoor fan is on: * Consider replacing the switch. * Confirm the fan's rotation and correct it if necessary. * Remove any obstructions blocking the fan. * Clear the airflow area around the fan. * Recover refrigerant and recharge as needed. * Recover refrigerant as required. * Consult the power company. * Check or replace the filter drier and expansion valve. Ensure the compressor discharge service valve is fully open. If the outdoor fan is off: * Tighten the fan hub setscrews. * Check the power and capacitor. * Replace the bearings. * Check the overload rating and look for any obstructions to the fan blade. * Replace the motor if necessary.
  • B
    briantaylorSep 7, 2025
    What causes my Bryant 566D Air Conditioner compressor to cycle on the low-pressure switch?
    • J
      Justin DeckerSep 7, 2025
      The cycling of the compressor on the low-pressure switch can be due to several reasons. If the indoor-air fan is running, try these: * Open the valve fully. * Check the liquid line solenoid valve(s) for proper operation and replace if necessary. * Replace the filter drier. * Replace the power head. * Add charge, and check the low-pressure switch setting. If the airflow is restricted: * Check the refrigerant charge. * Clean the coil fins. * Clean or replace the filters. * Check the damper operation and position. If the indoor-air fan is stopped: * Tighten all connections. * Replace the relay. * Check the power supply. * Replace the motor. * Replace or tighten the belt.
  • C
    Carl SharpSep 9, 2025
    Why is my Bryant 566D system noisy?
    • J
      jenniferwilsonSep 10, 2025
      If the system is noisy: 1. Support the piping as required. 2. Check the valve plates for valve noise. Replace the compressor if the bearings are worn.
  • L
    Lee ColemanSep 12, 2025
    What to do if Bryant Air Conditioner compressor will not unload?
    • J
      Jasmine MartinezSep 12, 2025
      If the compressor will not unload: 1. Replace the unloader. 2. Replace the valve. 3. Rewire correctly. 4. Replace the spring.

Summary

COMMERCIAL AIR-COOLED CONDENSING UNITS WITH 524 A AIR-HANDLING UNITS

FEATURES;BENEFITS

Describes system benefits like long life, efficiency, and dependability.

SELECTION PROCEDURE

I DETERMINE COOLING LOAD, EVAPORATOR-AIR TEMPERATURE, AND QUANTITY.

Step to determine the cooling load parameters.

II SELECT CONDENSING UNIT AIR-HANDLER COMBINATION.

Step to select the matched unit combination.

III DETERMINE SIZES OF LIQUID AND SUCTION LINES.

Step for sizing refrigerant lines.

CONTROLS

OPERATING SEQUENCES

Explains how units start, operate, and shut down based on thermostat calls and safeties.

MODEL NUMBER NOMENCLATURE

569 D, 569 F

Nomenclature breakdown for 569D and 569F series.

566 D

Nomenclature for 566D.

576 C

Nomenclature breakdown for 576C series.

566 E

Nomenclature for 566E.

PERFORMANCE DATA

CONDENSING UNIT RATINGS

Ratings for various models.

PERFORMANCE DATA (cont)

COMBINATION RATINGS*

Performance data for unit combinations.

ELECTRICAL DATA

569 D072-120, 576 C120, 569 F120 UNITS

Electrical data table for these models.

566 D150-240

Electrical data table for 566D models.

566 E150-240

Electrical data table for 566E models.

TYPICAL PIPING AND WIRING

GUIDE SPECIFICATIONS - 569 D072-120, 576 C120

PART 2 - PRODUCTS

Details equipment specifications.

D. Compressor

Compressor type and features.

GUIDE SPECIFICATIONS - 569 D072-120, 576 C120 (cont)

GUIDE SPECIFICATIONS - 566 D150-240, 566 E150-240

D. Compressors

Compressor details.

G. Controls and Safeties

Control functions and safety devices.

APPLICATION DATA - 566 D150-240, 566 E150-240

APPLICATION DATA - 566 D150-240, 566 E150-240 (cont)

REFRIGERANT PIPING SIZES

Piping size tables.

ELECTRICAL DATA (cont)

APPLICATION DATA - 524 A (cont)

APPLICATION DATA - 524 A (cont)

GUIDE SPECIFICATIONS - 524 A

PART 1 - GENERAL

General information.

2.01 EQUIPMENT

Equipment specifications.

GUIDE SPECIFICATIONS - 524 A (cont)

Bryant 566D Specifications

General IconGeneral
BrandBryant
Model566D
CategoryAir Conditioner
LanguageEnglish

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