York YK Service Manual

YORK INTERNATIONAL
18
YK MOD E CHILLERS ONLY
VSD OIL PUMP GENERAL INFORMATION
OBJECTIVE
This section will only cover the changes between the
Mod. “D” chiller and the Mod. “E” chiller as they per-
tain to the VSD oil pump drive. The changes will in-
clude an updated troubleshooting guide for the Mod.
“E” chiller.
VSD OIL PUMP DRIVE OVERVIEW
The VSD oil pump (VSOP) drive used in the Mod. “E”
YK chiller is the same as the VSOP drive used in the
Mod. “D” YK chiller, described on pages 3 thru 17.
Refer to pages 3 thru 17 for detailed information about
fault messages and troubleshooting of the VSOP drive
on a Mod. “D” YK chiller.
Refer to form 160.55-O1 for information about opera-
tion of the various features of the VSOP drive on the
Mod. “E” YK chiller.
Refer to form 160.55-M1for information about updated
fault messages, and details about the software opera-
tion of the VSOP drive as it pertains to the Graphic
Control Center.

York YK Specifications

General

Model	YK
Type	Centrifugal Chiller
Refrigerant	R-134a
Frequency	50/60 Hz
Compressor Type	Centrifugal
Application	Commercial and Industrial
Cooling Capacity Range	400 to 2, 500 tons
Full Load Efficiency	0.50 to 0.60 kW/ton
Efficiency	Varies by model (See specific model data)
Operating Temperature Range	Varies by model (See specific model data)