036-21564-003-A-1005
MECHANICAL SPECIFICATIONS
GENERAL DESCRIPTION
Units shall be
The units shall be factory wired, piped, charged with
All units shall be manufactured in a facility certified to ISO 9001 standards, and the cooling & heating performance shall be rated in accordance with DOE and ARI test procedures. Units shall be listed under UL 1995/CAN/CSA No.
UNIT CABINET
1.Unit cabinet shall be constructed of G90 galvanized steel, with exterior surfaces coated with a
2.Indoor blower section shall be insulated with up to 1" thick insulation, coated on the air side. Aluminum foil faced insulation shall be used in the furnace compart- ment and be fastened with ridged fasteners to prevent in- sulation from entering the air stream.
3.Cabinet panels shall be “large” size, easily removable for servicing and maintenance.
4.Full perimeter base rails shall be provided to assure reli- able transit of equipment, overhead rigging, fork truck ac- cess and proper sealing on roof curb applications.
5.Disposable 1" filters shall be furnished and be accessible through a removable access door, sealed air tight. Units filter track shall be designed to accommodate either 1" or 2" filters.
6.Fan performance measuring ports shall be provided on the outside of the cabinet to allow accurate air measure- ments of evaporator fan performance without removing panels or creating air
7.Units vertical discharge and return duct configuration shall be designed to fit between standard 24" O.C. beams without modification to building structure, duct work and base unit.
8.Condensate pan shall be internally sloped and conform to ASHRAE
INDOOR (SUPPLY) FAN ASSEMBLY
1.Fan shall be direct drive,
2.Fan wheel shall be
3.Bearings shall be sealed and permanently lubricated for longer life and no maintenance.
OUTDOOR FAN ASSEMBLY
1.The outdoor fan shall be of the
2.The outdoor fan motor shall be totally enclosed with permanently lubricated bearings and internally protected against overload conditions.
REFRIGERANT COMPONENTS
1.Compressors:
A.Shall be fully hermetic type, direct drive, internally pro- tected with internal
B.Shall have internal isolation and sound muffling to mini- mize vibration and noise, and be externally isolated on a dedicated, independent mounting.
2.Coils:
A.Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless
B.Evaporator and Condenser coils shall be of the direct expansion,
3.Refrigerant Circuit and Refrigerant Safety Components shall include:
A.Independent
B.Filter drier/strainer to eliminate any moisture or foreign matter.
C.Accessible service gage connections on both suction and discharge lines to charge, evacuate, and measure refrigerant pressure during any necessary servicing or troubleshooting, without losing charge.
D.The refrigeration system shall provide at least 15° F of liquid
E.Unit shall have a suction line accumulator.
4.Unit Controls:
A.Unit shall be complete with self contained
B.Unit shall incorporate a
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