York YCUL0016, YCUL0130 manual Guide Specifications, Quality Assurance, Delivery and Handling

Guide Specifications

FORM 150.63-EG1

PART 1 – GENERAL

1.01SCOPE

A.The requirements of the General Conditions, Supplementary Conditions, Division 1, and Draw- ings apply to all Work herein.

B.Provide Microprocessor controlled, multiple-scroll compressor, air-cooled, condensing units of the scheduled capacities as shown and indicated on the Drawings, including but not limited to:

1.Condensing Unit package

2.Electrical power and control connections

3.DX Central Station Air Handling connections

1.02QUALITY ASSURANCE

A.Products shall be Designed, Tested, and installed in compliance with applicable sections of the following Standards and Codes:

1.ANSI/ASHRAE Standard 15 – Safety Code for Mechanical Refrigeration

2.ASHRAE 90.1 - Energy efficiency compli- ance.

3.ANSI/NFPA Standard 70 – National Electrical Code (N.E.C.).

4.Conform to Intertek Testing Services, formerly ETL, for construction of condensing units and provide E.T.L./c E.T.L. Listing label.

5.Manufactured in facility registered to ISO 9002.

B.Factory Test: Condensing Unit shall be pressure- tested, evacuated and given a nitrogen holding charge and an initial oil charge, and shall be fac- tory operational run tested to assure each control device operates properly.

C.Warranty: Manufacturer shall Warrant all equipment and material of its manufacture against defects in workmanship and material for a period of one year from date of initial start-up or eighteen (18) months from date of shipment, whichever occurs first.

1.03DELIVERY AND HANDLING

A.Unit shall be delivered to job site fully assembled, and given nitrogen holding charge and a full oil charge by the Manufacturer. (R-22 or HFC-407C supplied by others).

B.Unit shall be stored and handled per Manufacturer’s

instructions.

PART 2 - PRODUCTS

2.01CONDENSING UNITS MATERIALS AND COMPONENTS

A. General: Install and commission, as shown on the schedules and plans, factory assembled, charged, and tested air cooled scroll compressor condensing unit as specified herein. Condensing Unit shall be designed, selected, and constructed using a refrig- erant with Flammability rating of “1”, as defined by ANSI/ASHRAE STANDARD - 34 Number Desig- nation and Safety Classification of Refrigerants. Condensing Unit shall include, but is not limited to:

a system with a single refrigerant circuit 35 tons (123kW) and below, and not less than two refriger- ant circuits above 35 tons (123kW), scroll compres- sors, air-cooled condenser, refrigerant, lubrication system, interconnecting wiring, safety and operating controls including capacity controller, control center, motor starting components, and special features as specified herein or required for safe, automatic operation.

B.Cabinet: External structural members shall be con- structed of heavy gauge, galvanized steel coated with baked on powder paint which, when subject to ASTM B117, 500 hour, 5% salt spray test, yields minimum ASTM 1654 rating of “6”

2.02COMPRESSORS

Compressors: Shall be hermetic, scroll-type, includ- ing:

1Compliant design for axial and radial sealing.

2.Refrigerant flow through the compressor with 100% suction cooled motor.

3.Large suction side free volume and oil sump to provide liquid handling capability.

4.Compressor crankcase heaters to provide extra liquid migration protection.

5.Annular discharge check valve and reverse vent assembly to provide low pressure drop, silent shutdown and reverse rotation protection.

6.Initial Oil charge.

7.Oil Level sightglass.

8.Vibration isolator mounts for compressors.

9.Brazed-type connections for fully hermetic refrigerant circuits.

YORK INTERNATIONAL 117