GUIDE SPECIFICATIONS
PACKAGED HEATING/COOLING UNITS
CONSTANT VOLUME APPLICATION
HVAC GUIDE SPECIFICATIONS
SIZE RANGE: 11/2 TO 5 TONS, NOMINAL COOLING 40,000 TO 130,000 BTUH,
NOMINAL HEATING INPUT
BRYANT MODEL NUMBER: 582A
PART 1 — GENERAL
SYSTEM DESCRIPTION
Outdoor rooftop mounted or ground level installed, gas heating/electric cooling unit utilizing a hermetic compres- sor for cooling duty. Unit shall discharge supply air verti- cally or horizontally as shown on contract drawings. Condenser fan/coil section shall have a
QUALITY ASSURANCE
C.Fans:
1.The evaporator fan shall be
2.Fan wheel shall be made from steel, be
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
2.Reciprocating and/or scroll compressors shall be standard on all units.
E.Coils:
A. Unit shall be rated in accordance with ARI Standards
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 certified 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 flame spread and smoke generation.
G.Cabinet insulation shall meet ASHRAE Standard 62P.
DELIVERY, STORAGE AND HANDLING
Unit shall be stored and handled per manufacturer’s recommendations.
PART 2 — PRODUCTS
EQUIPMENT
A.General:
B.Unit Cabinet:
Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless copper tubes with all joints brazed (copper/copper and
F.Heating Section:
1.
2.
3.The heat exchangers shall be constructed of alumi- nized steel for corrosion resistance.
4.Burners shall be of the
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 fixed orifice feed type.
H.Filter section shall consist of
I.Controls and Safeties:
1.Unit cabinet shall be constructed of phosphated, zinc- coated,
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
5.Unit shall have a
1.Unit controls shall be complete with a
2.Safeties: Compressors shall incorporate a
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 55°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
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