York YCUL0016 - Manual (Page 117)

YORK INTERNATIONAL 116 YORK INTERNATIONAL 117
FORM 150.63-EG1
Guide Specifications
PART 1 – GENERAL
1.01 SCOPE
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
1.02 QUALITY 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.
1.03 DELIVERY 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
2.01 CONDENSING 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”
2.02 COMPRESSORS
Compressors: Shall be hermetic, scroll-type, includ-
ing:
1 Compliant 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.