Guide Specifications - York YCAL0014 User Manual

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
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.
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. 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.
1.0 DELIVERY AND HANDLING
A. Unit shall be delivered to job site fully assembled,
and charged with refrigerant and oil by the Manu-
JOHNSON CONTROLS
facturer.
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, 500 hour, 5% salt spray test, yields
minimum ASTM 1654 rating of "6".
2.02 COMPRESSORS
Compressors: Shall be hermetic, scroll-type, in-
cluding:
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 shut-
down 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 refrig-
erant circuits.
FORM 150.62-EG1 (507)