FORM 150.40-NM20
3
YORK INTERNATIONAL
GENERAL INFORMATION
GENERAL DESCRIPTION
The YCHA packaged liquid chillers are completely self-
contained outdoor units shipped ready for final job
installation requiring only liquid connections, power and
control wiring. They are designed primarily for central
station air conditioning applications with normal instal-
lations being on roof-tops or on ground level beside the
building.
CODE STATUS
The units are designed in accordance with N.E.C., ANSI
B9.1, and ASME Codes.
OPERATING LIMITATIONS
LEAVING LIQUID MIN. 40
TEMP., °F MAX. 50
AIR ON MIN. 35*
CONDENSER, °F MAX. 130
UNIT COOLER
MODEL
WATER GPM
YCHA MIN. MAX.
100 120 550
120 120 580
150 120 580
175 150 640
200 200 700
* 0°F With Optional Low Ambient Kit.
NOTE: The evaporator is protected against freeze-up to - 20°F with
an electrical heater cable.
COMPRESSOR NOMENCLATURE
Compressor Series
Single Stage
No. of Active Cylinders
(4,6,&8)
Stroke (3, 4)
Design Level (E)
Motor Size (M,N,Q,P,S,T)
Voltage Code:
17= 200-3-60
28 = 230-3-60
40 = 380-3-60
46 = 460-3-60
50 = 380/415-3-50
64 = 346-3-50
Motor Manufacturer
(A = A.O. Smith, G = G.E.)
J S 4 3 E M -17 G
TABLE 1 – VOLTAGE LIMITATIONS
LD01773
FIG. 1 – COOLER WATER PRESSURE DROP
VOLTAGE OPTIMUM MIN. MAX.
CODE VOLTAGES VOLTS VOLTS
17 200-3-60 180 220
28 230-3-60 207 253
40 380-3-60 355 415
46 460-3-60 414 506
50 380/415-3-50 342 440
64 346-3-50 311 381
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