Bryant 588A User Manual

0 (0)

 

Bryant

SINGLE PACKAGE

Model 588A

 

Air Conditioning

 

 

GAS HEATING/

Sizes 018-060

 

 

ELECTRIC COOLING UNITS

11¤2 to 5 Tons

 

 

 

 

DESCRIPTION

All 588A models feature one piece, compact design and are fully self-contained units that are prewired, prepiped, and precharged for minimum installation expense. Unit is designed for easy use in either down¯ow (vertical) or horizontal applications.

STANDARD FEATURES

FACTORY-ASSEMBLED PACKAGE is a compact, fully selfcontained, gas heating/electric cooling unit that is prewired, prepiped, and precharged for minimum installation expense.

588A units are lightweight and available in a variety of standard heating and cooling sizes with voltage options to meet residential and light commercial requirements. Unit installs easily on a rooftop or a ground-level pad.

CONVERTIBLE DUCT CONFIGURATION on the 588A is designed for easy use in either down¯ow or horizontal discharge applications.

HIGH-EFFICIENCY DESIGN with SEERs (Seasonal Energy Ef- ®ciency Ratios) of 10.0.

DURABLE, DEPENDABLE COMPRESSORS are designed for high efficiency. Each compressor is hermetically sealed against contamination to help promote longer life and dependable operation. Each compressor also has vibration isolation to provide quiet operation. Rotary, reciprocating, or scroll compressors are used. Compressors have internal high-pressure and overcurrent protection.

DIRECT-DRIVE MULTISPEED, PSC (permanent split capacitor) BLOWER MOTOR is standard on all models.

DIRECT-DRIVE, PSC CONDENSER-FAN MOTORS are designed to help reduce energy consumption and provide for cooling operation down to 40 F.

REFRIGERANT SYSTEM is designed to provide dependability. Liquid refrigerant strainers are used to promote clean, unrestricted operation. Each unit leaves the factory with a full refrigerant charge. Refrigerant service connections make checking operating pressures easier.

EVAPORATOR AND CONDENSER COILS are computerdesigned for optimum heat transfer and cooling efficiency. Condenser coil is fabricated of copper tube and aluminum ®ns and is located inside the unit for protection against damage and for long life and reliable operation. The condenser coil is internally mounted and protected by a composite grille.

Copper ®n coils for condenser coil are also available by special order. These coils are recommended in applications where aluminum ®ns are likely to be damaged due to corrosion. Copper ®n coils are ideal for seacoast applications.

MONOPORT INSHOT BURNERS produce precise air-to-gas mixture, which provides for clean and efficient combustion. The large monoport on the inshot (or injection type) burners seldom, if ever, needs cleaning.

WEATHERIZED CABINETS are constructed of heavy-duty, phosphated, zinc-coated prepainted steel capable of withstanding 500 hours in salt spray. Interior surfaces of the evaporator compartment are insulated with foil-faced ®berglass to help keep the conditioned air from being affected by the outdoor ambient temperature and provide improved air quality. Conforms to American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) No. 62P. Sloped condensate pan permits an external drain.

LOW SOUND RATINGS ensure a quiet indoor and outdoor environment with sound ratings as low as 7.4 bels.

EASY TO SERVICE CABINETS provide easy accessibility to serviceable components during maintenance and installation. Rounded corners are an important safety feature, and a highquality ®nish ensures an attractive appearance.

LOW AND HIGH VOLTAGE ELECTRICAL ENTRIES allow low and high voltage to be brought in either through the duct panel or rear ¯ue panel.

INTEGRATED GAS CONTROL BOARD provides safe and ef- ®cient control of heating and simpli®es troubleshooting through its built-in diagnostic function.

OPTIONAL BASE RAILS provide holes for rigging and handling as well as an elevated mounting frame that provides structural support for horizontal installations.

DOWNFLOW OPTIONS is converted for down¯ow at factory for easy vertical ductwork connections.

Form No. PDS 588A.18.4B

FACTORY-INSTALLED OPTIONS DESCRIPTION AND USAGE

Unit With Base Rail Ð Unit has rigging holes and an elevated mounting frame.

SUGGESTED USE:

·Rigging holes to provide greater ease in handling. Frame to provide elevation and structural support for horizontal applications.

Down¯ow Option Ð Unit is shipped from factory con®gured for down¯ow application. Unit is equipped with base rail.

SUGGESTED USE:

· To provide easy vertical ductwork connections.

FIELD-INSTALLED ACCESSORY DESCRIPTION AND USAGE

Flat Roof Curb Ð Consists of galvanized steel support frame in 8-, 11-, and 14-in. high designs. Provides wood nailer to attach roof counter ¯ashing. Insulated basepans in curbs are provided to prevent condensation. Ductwork attaches to rails provided in the roof curb. A gasket is provided to form an airtight and watertight seal between unit and curb. The roof curb design meets the standards of the NRCA (National Roo®ng Contractors' Association).

SUGGESTED USE:

·Slab-mounted applications when elevation of the unit above the slab is necessary.

·Rooftop application for down¯ow discharge.

·Curbs are preassembled and are available for ¯at or pitched roofs.

Pitched Roof Curb Ð Provided in ratios of 1, 2, 3, 4, 5, and 6 to 12 for use on pitched roof applications.

SUGGESTED USE:

· For when a roof curb is needed on a pitched roof.

Modulating Economizer Ð Economizer is available for down- ¯ow or horizontal applications, and is designed for easy installation. Economizer reduces energy costs and extends equipment life by allowing the use of outdoor air to supply ``free'' cooling when conditions are favorable.

Constant ventilation is recommended for light commercial applications when the conditioned space is occupied.

The economizer is shipped complete with a damper motor and linkage, enthalpy control, low-voltage wiring harness, and a rainhood. Adequate wire lengths are provided (additional ®eldsupplied wires are not required). Horizontal economizers are also furnished with a 2-in. disposable air ®lter and gasket material.

Modulating economizer package consists of low-leakage dampers with controls. The economizer will allow a ®xed percentage of outdoor ventilation air into the unit whenever the evaporator fan is running.

SUGGESTED USE:

·Allows outdoor air to be used for ``free'' cooling whenever the outdoor air is below the enthalpy control setting.

·To reduce energy usage. Use whenever the hours of operation at temperatures below 40 F are signi®cant.

Two-Position Damper Ð In the two-position dampers, the enthalpy control detects when outdoor air is suitable for ``free'' cooling by measuring the outdoor-air dry bulb temperature and humidity. Whenever the outdoor-air quality is acceptable for ``free'' cooling, the outdoor-air damper opens fully and the return-air damper closes, allowing outdoor air to enter the building.

SUGGESTED USE:

·Allows use of outdoor air to cool building without using compressor. Damper closes when evaporator fan is off to prevent cold backdraft, and wasted energy.

Manual Outdoor-Air Damper Ð Package consists of a manually adjustable damper and includes a rainhood and birdscreen.

SUGGESTED USE:

·To allow a ®xed percentage of outdoor air for ventilation under all conditions.

·The damper may be used on either down¯ow or horizontal air- ¯ow applications.

Thermostat and Subbase Ð These accessories provide cooling control for unit. Autochangeover and manual changeover types are available.

SUGGESTED USE:

·To operate and control unit, and to maintain desired building temperature.

The 0° F Low Ambient Kit Ð Kit permits operation down to 0° F.

SUGGESTED USE:

·When mechanical cooling is required when outdoor-air temperature is between 40 F and 0° F.

Natural-to-Propane Conversion Kit Ð Kit consists of gas ori- ®ces and other hardware required to convert the unit for use with LP (liquid propane) gas.

SUGGESTED USE:

·When natural gas cannot be obtained and liquid propane is used as fuel.

Filter Rack Ð Rack features easy installation and serviceability.

The ®lter rack housing is constructed of heavy-gage steel and is fully insulated. Both sides of the ®lter rack are ¯anged for easy installation.

SUGGESTED USE:

· Kit provides ability to locate ®lters inside the unit.

Flexible Duct Kit Ð Consists of 2 ¯exible UL-listed (Underwriters' Laboratories) ducts. The duct construction includes vapor barrier and 1-in. ®berglass insulation. The ``K'' factor is 0.23. Each duct has a square-to-round snap adapter for attachment to the accessory roof curb on one end, and a round clamp collar for attachment to the concentric diffuser box on the other end.

SUGGESTED USE:

·For use with accessory roof curb and concentric box to provide an easily-installed concentric system.

Concentric Diffuser Box Ð Is aerodynamically designed and equipped with a combination 4-way supply and a center return diffuser. A special core is provided within the diffuser box to provide even 4-way distribution.

SUGGESTED USE:

·For use with accessory roof curb and concentric box to provide an easily-installed concentric system.

Crankcase Heater Ð Warms crankcase oil to reduce refrigerant migration and ensure proper compressor lubrication.

SUGGESTED USE:

·For use in applications where crankcase is subjected to low outside temperatures. Recommended on 208/230-v, singlephase, 024-042 units only.

Solid-State ComprotecT Device Ð Package consists of a control to be ®eld-wired into the unit controls, and provides a 5-minute delay in compressor operation between cooling cycles.

SUGGESTED USE:

·Prevents compressor short cycling when rapid compressor cycles may be a problem.

2

FIELD-INSTALLED ACCESSORY DESCRIPTION AND

USAGE (cont)

Lifting Bracket Kit Ð Provides attachment point for rigging straps.

SUGGESTED USE:

·When unit needs to be lifted or moved. The kit is not required when unit is equipped with optional base rail or down¯ow application.

Highand Low-Pressure Switches Ð Protect the unit from running at unsuitable pressures.

SUGGESTED USE:

· Provides additional safety features when needed.

CONTENTS

Page

Model Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

ARI Cooling Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Heating Capacities and Efficiencies . . . . . . . . . . . . . . . . . . . 4

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Speci®cations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Net Cooling Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16

Air Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17,18

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Engineers' Speci®cation Guide. . . . . . . . . . . . . . . . . . . . . . 26

MODEL DESCRIPTION

3

ARI* COOLING CAPACITIES

UNIT 588A

NOMINAL

STANDARD

NET COOLING²

SEER²**

SOUND RATINGS²²

TONS

CFM

CAPACITIES (Btuh)

(Bels)

 

 

018

11¤2

600

17,000

10.0

7.4

024

2

800

24,000

10.0

7.6

030

21¤2

1000

29,200

10.0

8.0

036

3

1200

36,000

10.0

8.0

042

31¤2

1400

42,500

10.0

8.2

048

4

1600

47,000

10.0

8.2

060

5

1995

59,500

10.0

8.2

 

 

 

 

 

 

 

 

LEGEND

Bels

Ð Sound Levels (1 bel = 10 decibels)

db

Ð dry bulb

SEER

Ð

Seasonal Energy Efficiency Ratio

wb

Ð

wet bulb

*ARI Ð Air-conditioning and Refrigeration Institute.

²Rated in accordance with U.S. Government DOE (Department of Energy) test procedures and/or ARI (Air Conditioning and Refrigeration Institute) Standard 210/240-89.

**All units have factory-installed time-delay relay.

²²Rated in accordance with ARI Standard 270-84.

NOTE: Ratings are net values, re¯ecting the effects of circulating fan heat. Ratings are based on 80 F db, 67 F wb indoor entering-air temperature and 95 F db air entering outdoor unit.

OUTDOOR SOUND: ONE-THIRD OCTAVE BAND DATA Ð DECIBELS

MODEL NO.

 

 

 

588A

 

 

 

Frequency (Hz)

018

024

030

036

042

048

060

63

49.8

38.1

45.7

47.8

45.5

56.0

54.3

125

56.5

55.0

58.1

59.3

61.2

65.6

65.1

250

60.3

65.3

68.7

67.4

70.4

71.5

71.5

500

59.8

67.2

64.7

68.8

69.9

71.4

72.7

1000

64.1

68.9

73.0

73.1

76.5

74.2

73.9

2000

64.1

65.5

70.2

69.5

71.3

73.3

73.4

4000

65.2

63.8

68.8

68.2

73.7

69.6

71.7

8000

56.0

60.3

66.6

65.8

65.5

67.1

66.3

HEATING CAPACITIES AND EFFICIENCIES

UNIT 588A

 

HEATING INPUT

OUTPUT CAPACITY

TEMPERATURE

AFUE (%)

CSE (%)

 

(Btuh)

(Btuh)

RISE RANGE (°F)

 

 

 

 

 

 

018040

 

 

 

20-50

81.0

76.5

 

024040

 

40,000

32,800

20-50

81.0

76.5

 

030040

 

 

 

20-50

81.0

76.5

 

024060

 

 

 

25-55

81.0

77.5

 

030060

 

60,000

48,600

25-55

81.0

77.5

 

036060

 

25-55

81.0

77.5

 

 

 

 

 

042060

 

 

 

25-55

81.0

77.5

 

030080

 

 

 

40-70

81.0

77.5

 

036080

 

 

 

40-70

81.0

77.5

 

042080

 

80,000

64,800

40-70

81.0

77.5

 

048080

 

 

 

40-70

81.0

77.5

 

060080

 

 

 

40-70

81.0

77.5

 

036100

 

 

 

50-80

81.0

78.0

 

042100

 

100,000

81,000

50-80

81.0

78.0

 

048100

 

50-80

81.0

78.0

 

 

 

 

 

060100

 

 

 

50-80

81.0

78.0

 

036120

 

 

 

60-90

80.0

77.5

 

042120

 

120,000

97,200

60-90

80.0

77.5

 

048120

 

60-90

80.0

77.5

 

 

 

 

 

060120

 

 

 

60-90

80.0

77.5

 

048140

 

140,000

113,000

50-80

80.0

77.5

 

060140

 

50-80

80.0

77.5

 

 

 

 

 

 

LEGEND

 

 

 

 

AFUE

Ð Annual Fuel Utilization Efficiency

 

 

 

 

CSE

Ð California Seasonal Efficiency

 

 

 

 

NOTE: Before purchasing this appliance, read important energy cost and efficiency information available from your retailer.

4

CG COND LV

NOTE: outdoor

REQ'D

Duct

Unit

Side

(Except

REQ'D

Unit

Duct

Side

Bottom

Flue

NEC

Between

Unit

Unit

DIMENSIONAL DRAWINGS

Unit 588A Sizes 018-042 Without Base Rail

5

588A018040

588A024040

588A024060

588A030040

CG

COND

LV

NOTE: outdoor

REQ'D

Duct Unit top Side

Compressor (Except

REQ'D

Maximum

Unit top

Duct side

Side

Bottom

Flue

NEC

Between

Unit and

Unit and

grounded

DIMENSIONAL DRAWINGS (cont)

Unit 588A Sizes 018-060 With Optional Base Rail

6

DIMENSIONAL DRAWINGS (cont)

REQ'D

Duct

Unit

Side

(Except

REQ'D

Maximum

Unit

Duct

Side

Bottom

Flue

NEC

Between Unit Unit

surfaces,

CG

COND

LV

NOTE: outdoor

Unit 588A, Sizes 048,060 Without Base Rail

7

Bryant 588A User Manual

DIMENSIONAL DRAWINGS (cont)

REQ'D CLEARANCES FOR SERVICING. in. (mm)

Duct

Unit

Side

(Except

REQ'D

Unit

Duct

Side

Bottom

Flue

NEC

Between Unit Unit

surfaces,

CG

COND

LV

NOTE: outdoor

Unit 588A Sizes 048,060 With Optional Base Rail

8

DIMENSIONAL DRAWINGS (cont)

 

PART NUMBER

``A''

``B''

PITCH

 

389099-701

89

[203]

Ð

Ð

FLAT

389100-701

119 [279]

Ð

Ð

 

389101-701

149

[356]

Ð

Ð

 

389103-701

89

[203]

107¤89 [276]

1:12

 

389104-701

89

[203]

139¤169 [344]

2:12

PITCHED

389105-701

89

[203]

163¤89

[416]

3:12

389106-701

89

[203]

191¤49

[489]

4:12

 

 

389107-701

89

[203]

223¤89

[568]

5:12

 

389108-701

89

[203]

255¤89

[651]

6:12

NOTES:

1.Roof curb must be set up for unit being installed.

2.Seal strip must be applied as required for unit being installed.

3. Dimensions in [ ] are in millimeters.

4.Roof curb is made of 16 gage steel.

5.Attach ductwork to curb (¯anges of duct rest on curb).

6.Service clearance 4 ft on each side.

7. Direction of air¯ow.

8.Insulated panels: 1-in. thick ®berglass, 1 lb density.

Roof Curb, Sizes 018-060

9

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