York YCAL0041 User Manual download pdf (Page 74)

YORK INTERNATIONAL

Guide Speciﬁcations

PART 1 – GENERAL

1.01 SCOPE

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)

1.02 QUALITY 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

50 mile 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.

1.03 DELIVERY 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

2.01 CHILLER 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.

2.02 COMPRESSORS

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

cluding:

1. Compliant design for axial and radial sealing

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