Carrier 38AUZ Specifiche Scaricare il pdf (Pagina 89)

Guide Specification for CU 3-5

Project: ~Untitled65 05/30/2014

Prepared By: 03:47PM

GUIDE SPECIFICATIONS

Commercial Air-Cooled Condensing Units

HVAC Guide Specifications

Size Range:

6 to 20 Tons, Nominal

Carrier Model Numbers:

38AUZ, Single Circuit (07 - 25 Models) 38AUD, Dual Circuit (12 - 25 Models)

Part 1 — General

1.01 SYSTEM DESCRIPTION

Outdoor-mounted, air-cooled condensing unit suitable for on-the-ground or rooftop installation. Unit shall consist of a hermetic

scroll air-conditioning compressor(s) assembly, an air-cooled coil, propeller-type condenser fans, and a control box. Unit shall

discharge supply air upward as shown on contract drawings. Unit shall be used in a refrigeration circuit matched with a packaged air-

handling unit.

1.02 QUALITY ASSURANCE

A. Unit shall be rated in accordance with AHRI Standard 360.

B. Unit construction shall comply with ANSI/ASHRAE 15 safety code latest revision and comply with NEC.

C. Unit shall be constructed in accordance with UL 1995 standard and shall carry the UL and UL, Canada label.

D. Unit cabinet shall be capable of withstanding 500-hour salt spray exposure per ASTM B117 (scribed specimen).

E. Air-cooled condenser coils for hermetic scroll compressor units (38AUZ) and 38AUD shall be leak tested at 150 psig, and

pressure tested at 650 psig.

F. Unit shall be manufactured in a facility registered to ISO 9001:2000 manufacturing quality standard.

1.03 DELIVERY, STORAGE, AND HANDLING

Unit shall be shipped as single package only, and shall be stored and handled according to unit manufacturer’s recommendations.

1.04 WARRANTY (FOR INCLUSION BY SPECIFYING ENGINEER.)

Part 2 — Products

2.01 EQUIPMENT

A. General:

Factory-assembled, single piece, air-cooled condensing unit. Contained within the unit enclosure shall be all factory wiring, piping,

controls, compressor, holding charge, and special features required prior to field start-up.

B. Unit Cabinet:

1. Unit cabinet shall be constructed of galvanized steel, bonderized and coated with a prepainted baked enamel finish.

2. A heavy-gauge roll-formed perimeter base rail with forklift slots and lifting holes shall be provided to facilitate rigging.

C. Condenser Fans:

1. Condenser fans shall be direct driven, propeller type, discharging air vertically upward.

2. Fan blades shall be balanced.

3. Condenser fan discharge openings shall be equipped with PVC-coated steel wire safety guards.

4. Condenser fan and motor shaft shall be corrosion resistant.

D. Compressor:

1. Compressor shall be of the hermetic scroll type .

2. Compressor shall be mounted on rubber grommets.

3. Compressors shall include overload protection.

4. Compressors shall be equipped with a crankcase heater.

5. Compressor shall be equipped with internal high pressure and high temperature protection.

6. 38AUZ*16 and 25 sizes shall use two scroll compressors manifold together.

E.Condenser Coils:

1. Standard Aluminum fin - Copper Tube Coils:

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Carrier 38AUZ Specifiche Pagina 89

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