York YCWL Series - Delivery and Handling; Chiller Materials and Components; Compressors

FORM 150.26-EG1 (116)
JOHNSON CONTROLS
71
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 rst.
1.03 DELIVERY AND HANDLING
E. Unit shall be delivered to job site fully assembled, and charged with refrigerant and oil
by the Manufacturer.
F. Unit shall be stored and handled per Manufacturer’s instructions.
G. Unit and its accessories shall be protected from the weather and dirt exposure during
shipment.
H. During shipment, a covering shall be provided over vulnerable components. Nozzles
and open ends shall be tted with plastic enclosures.
PART 2 – PRODUCTS
2.01 CHILLER MATERIALS AND COMPONENTS
I. General: Install and commission, as shown on the schedules and plans, factory as-
sembled, charged, and tested water-cooled scroll compressor chiller(s) as specied
herein. Chiller shall be designed, selected, and constructed using a refrigerant with
Flammability rating of “1”, as dened by ANSI/ASHRAE STANDARD - 34 Number
Designation and Safety Classication of Refrigerants. Chiller shall include, but is not
limited to: a complete system with not less than two refrigerant circuits, scroll compres-
sors, direct expansion type evaporator, water-cooled condenser, refrigerant, lubrica-
tion system, interconnecting wiring, safety and operating controls including capacity
controller, control center, motor starting components, and special features as specied
herein or required for safe, automatic operation.
2.02 COMPRESSORS
J. Compressors Shall be hermetic, scroll-type, including:
1. Compliant design for axial and radial sealing
2. Refrigerant ow 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, silentshutdown 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.
10. Microprocessor controlled, Factory installed Across-the-Line type compressor mo-
tor starters.
Guide Specifications (Cont'd)