Bryant 583A manual Guide Specifications, Part 1 Ð General, Part 2 Ð Products

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GUIDE SPECIFICATIONS

PACKAGED GAS HEATING/ELECTRIC COOLING UNITS CONSTANT VOLUME APPLICATION

HVAC GUIDE SPECIFICATIONS

SIZE RANGE: 2 to 5 TONS, NOMINAL COOLING 40,000 TO 130,000 BTUH NOMINAL HEATING INPUT

BRYANT MODEL NUMBER: 583A

PART 1 Ð GENERAL

1.01SYSTEM DESCRIPTION

Outdoor rooftop mounted, gas heating/electric cooling unit utilizing a hermetic compressor for cooling duty. Unit shall discharge supply air vertically or horizontally as shown on contract drawings. Condenser fan/coil section shall have a draw-thru design with vertical discharge for minimum sound levels.

1.02QUALITY ASSURANCE

A.Unit shall be rated in accordance with ARI Standards 210/ 240-94 and 270-95.

B.Unit shall be designed in accordance with UL Standard 1995.

C.Unit shall be manufactured in a facility registered to ISO 9001 manufacturing quality standard.

D.Unit shall be UL listed and CSA certi®ed as a total pack- age for safety requirements.

E.Roof curb shall be designed to conform to NRCA Standards.

F.Insulation and adhesives shall meet NFPA 90A require- ments for ¯ame spread and smoke generation.

G.Cabinet insulation shall meet ASHRAE Standard 62P.

1.03DELIVERY, STORAGE AND HANDLING

Unit shall be stored and handled per manufacturer's recommendations.

PART 2 Ð PRODUCTS

2.01EQUIPMENT

A.General:

Factory-assembled, single-piece, heating and cooling unit. Contained within the enclosure shall be all factory wiring, piping, controls, refrigerant charge (R-22), and special features required prior to ®eld start-up.

B.Unit Cabinet:

C.Fans:

1.The evaporator fan shall be 3-speed, direct-drive, as shown on equipment drawings.

2.Fan wheel shall be made from steel, and shall be double-inlet type with forward curved blades with cor- rosion resistant ®nish. Fan wheel shall be dynamically balanced.

3.Condenser fan shall be direct drive propeller type with aluminum blades riveted to corrosion resistant steel spiders, be dynamically balanced, and discharge air vertically.

D.Compressor:

1.Fully hermetic compressors with factory-installed vi- bration isolation.

2.Scroll compressors shall be standard on all units.

E.Coils:

Evaporator and condenser coils shall have aluminum plate ®ns mechanically bonded to seamless copper tubes with all joints brazed (copper/copper and vinyl-coated construction available as option). Tube sheet openings shall be belled to prevent tube wear.

F.Heating Section:

1.Induced-draft combustion type with energy saving di- rect spark ignition system and redundant main gas valve.

2.Induced-draft motors shall be provided with solid-state hall-effect sensor to ensure adequate air¯ow for combustion.

3.The heat exchangers shall be constructed of alumi- nized steel for corrosion resistance.

4.Burners shall be of the in-shot type constructed of alu- minum coated steel.

5.All gas piping and electric power shall enter the unit cabinet at a single location.

G.Refrigerant Components:

Refrigerant components shall be of the ®xed ori®ce feed type.

H.Filters:

Filter section shall consist of ®eld-installed, throwaway, 1-in. thick ®berglass ®lters of commercially available sizes.

I.Controls and Safeties:

1.Unit cabinet shall be constructed of phosphated, zinc- coated, pre-painted steel capable of withstanding 500 hours in salt spray.

2.Normal service shall be through a single removable cabinet panel.

3.The unit shall be constructed on a rust proof basepan that has an externally trapped, integrated sloped drain pan.

4.Evaporator fan compartment top surface shall be insu- lated with a minimum 1¤2-in. thick, ¯exible ®berglass in- sulation, coated on the air side and retained by adhesive and mechanical means. The evaporator wall sections will be insulated with a minimum semi-rigid foil-faced board capable of being wiped clean. Alumi- num foil-faced ®berglass insulation shall be used in the entire indoor air cavity section.

5.Unit shall have a ®eld-supplied condensate trap.

1.Unit controls shall be complete with a self-contained low voltage control circuit.

2.Compressors shall incorporate a solid-state compres- sor protector that provides reset capability.

J.Operating Characteristics:

1.Unit shall be capable of starting and running at 125 F ambient outdoor temperature per maximum load crite- ria of ARI Standard 210.

2.Compressor with standard controls shall be capable of operation down to 40 F ambient outdoor temperature.

3.Units shall be provided with fan time delay to prevent cold air delivery before the heat exchanger warms up.

4.Unit shall be provided with 30-second fan time delay after the thermostat is satis®ed.

K.Electrical Requirements:

All unit power wiring shall enter the unit cabinet at a single location.

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Contents Unit 583A FEATURE/BENEFITSDURABLE, Dependable Components Efficient OperationTable of Contents ARI* Capacities Cooling Capacities and Efficiencies Model Number NomenclatureHeating Capacities and Efficiencies Unit Heating Input Output Capacity Temperature RiseRange F Unit Size 583A Physical DataFACTORY-INSTALLED Options Options and AccessoriesFIELD-INSTALLED Accessories Options and Accessories Economizer Characteristics Base Unit Dimensions Ð Unit Sizes``A 042060/090 Unit Part Number Accessory DimensionsCurb Select Unit That Corresponds to Power Source Available Selection Procedure with ExampleII Select Unit Based on Required Cooling Capacity SHC Performance Data NET Cooling CapacitiesPerformance Data NET Cooling Capacities 583A--048 Performance Data Outdoor Sound ONE-THIRD Octave Band Data Ð Decibels 583A WET Coil Pressure DropUnit Size Airflow Pressure Drop Unit 583A Pressure DropNatural GAS only High Altitude CompensationInput Output Orifice NUMBER²Typical Piping and Wiring Application Data Electrical Data OFM Typical Wiring Schematic Ð 208/230-1-60 ShownIGC Typical Wiring Schematic Ð 208/230-3-60 ShownTypical Wiring Schematic Ð 460-3-60 Shown Operating Sequence ControlsPart 1 Ð General Guide SpecificationsPart 2 Ð Products Guide Specifications Page Copyright 1999 Bryant Heating & Cooling Systems
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583A specifications

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