York YCAL0041 manual Guide Specifications, Part 1 General, Quality Assurance, Delivery and Handling

Guide Specifications

PART 1 – GENERAL

1.01SCOPE

A.The requirements of the General Conditions, Sup- plementary Conditions, Division 1, and Drawings apply to all Work herein.

B.Provide Microprocessor controlled, multiple-scroll compressor, air-cooled, liquid chillers of the sched- uled capacities as shown and indicated on the Drawings, including but not limited to:

1.Chiller package

2.Electrical power and control connections

3.Chilled water connections

4.Change of refrigerant oil (for factory mounted evaporator) or (evaporator shipped separately for field installation and piping by contractor)

1.02QUALITY ASSURANCE

A.Products shall be Designed, Tested, Rated and Certified in accordance with, and installed in com- pliance 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.ASME Boiler & Pressure Vessel Code, Sec tion VIII, Division 1.

5.ARI Standard 550/590 – Positive Displacement Compressors and Air Cooled Rotary Screw Water-Chilling Packages.

6.Conform to Intertek Testing Services, formerly ETL, for construction of chillers and provide ETL/cETL Listing label.

7.Manufactured in facility registered to ISO 9002.

8.OSHA - Occupational Safety and Health Act

B.Factory Test: Chiller shall be pressure-tested, evac- uated and fully charged with refrigerant and oil, and shall be factory operational run tested with water flowing through the vessel.

C.Chiller manufacturer shall have a factory trained and supported service organization that is within a

50mile radius of the site.

D.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 charged with refrigerant and oil by the Manu- facturer. (Contractor is responsible for providing and installing the refrigerant charge including the charge required for the field installed interconnecting piping. Chiller components shall ship with a dry nitrogen holding charge – Remote Evaporator option).

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

PART 2 - PRODUCTS

2.01CHILLER MATERIALS AND COMPONENTS

A.General: Install and commission, as shown on the schedules and plans, factory assembled, charged, and tested air cooled scroll compressor chiller(s) as specified herein. Chiller shall be designed, selected, and constructed using a refrigerant with Flamma- bility rating of “1”, as defined by ANSI/ASHRAE STANDARD - 34 Number Designation and Safety Classification of Refrigerants. Chiller shall include, but is not limited to: a complete system with a single refrigerant circuit 35 tons (123kW) and below, and not less than two refrigerant circuits above 35 tons (123kW), scroll compressors, direct expansion type evaporator, 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, 1000 hour, 5% salt spray test, yields minimum ASTM 1654 rating of “6”. Add Wire Panels of heavy gauge, welded wire-mesh, coated to resist corrosion, to protect condenser coils from incidental damage and restrict unauthorized access to internal components. Factory installed.

2.02COMPRESSORS

Compressors: Shall be hermetic, scroll-type, in- cluding:

1. Compliant design for axial and radial sealing

74 YORK INTERNATIONAL