York YCAS Series, Wiring Diagram, Page: 3 / 32

YORK INTERNATIONAL
3
FORM 201.19-W3 (1104)
YORK INTERNATIONAL
3
WARNING
HIGH VOLTAGE
is used in the operation of this equipment.
DEATH OR SERIOUS INJURY
may result if personnel fail to observe safety precautions.
Work on electronic equipment should not be undertaken unless the individual(s) have been trained
in the proper maintenance of equipment and is (are) familiar with its potential haz ards.
Shut off power supply to equipment before beginning work and follow lockout procedures. When
work ing inside equipment with power off, take care to discharge every ca pac i tor likely to hold dan-
ger ous potential.
Be careful not to contact high voltage connections when installing or operating this equipment.
LOW VOLTAGE
DO NOT be misled by the term “low voltage”.
Voltages as low as 50 volts may cause death.
NOMENCLATURE
The Model Number denotes the following characteristics of the unit:
YORK Chiller
YC = YORK Chiller
Air-Cooled
Compressor Type
S = Screw
Nominal Capacity (tons)
Unit Designator
S = Standard Unit
E = High Effi ciency
H = High Static Fans
Design Series
Type Start
Y = Star (WYE)-Delta
X = Across-the-Line
Voltage Code
17 = 200-3-60
28 = 230-3-60
40 = 380-3-60
46 = 460-3-60
58 = 575-3-60
Refrigerant
C = R-22
YC A S 0373 E C 17 Y G