Specifications

2 YORK INTERNATIONAL
TABLE OF CONTENTS
Section 1: Description of System and Operational Fundamentals ..........................4
Section 2: MicroComputer Control Center.................................................................6
Introduction................................................................................................... 6
Control Center .............................................................................................. 7
Operation ...................................................................................................... 8
Programming the MicroComputer Control Center ......................................13
Service Keys .............................................................................................. 18
Operating Modes ........................................................................................ 20
Compressor Switch .................................................................................... 21
Display Messages ......................................................................................21
Section 3: System Operating Procedures ................................................................ 28
Section 4: System Components Description - Compressor/Motor Assembly ...... 35
Section 5: Operational Maintenance .........................................................................39
Use of Pump Assisted Turboguard Purge Unit ...........................................39
Oil Return System ......................................................................................42
Charging the Unit With Oil .......................................................................... 44
Section 6: Trouble Shooting ...................................................................................... 46
Section 7: Maintenance .............................................................................................. 52
Renewal Parts ............................................................................................ 52
Checking System for Leaks .......................................................................52
Evacuation and Dehydration of Unit ........................................................... 52
Refrigerant Charging .................................................................................. 55
Checking the Refrigerant Charge During Unit Shut Down.......................... 55
Handling Refrigerant for Dismantling and Repairs ..................................... 55
Megging the Motor ...................................................................................... 56
Condensers and Coolers ............................................................................56
Compressor ................................................................................................59
Electrical Controls ......................................................................................59
Section 8: Preventive Maintenance ........................................................................... 59
NOTE: This instruction covers operation of chillers equipped with Electro-Mechanical or Solid State
Starters. If chiller is equipped with Variable Speed Drive, Form 160.00-O1 is to be used in
conjunction with this manual.
DESCRIPTION FORM NO
INSTALLATION 160.48-N1
OPERATION – VARIABLE SPEED DRIVE 160.00-O1
RENEWAL PARTS – UNIT 160.48-RP5
RENEWAL PARTS – CONTROL PANEL 160.48-RP3
RENEWAL PARTS – B & C COMPRESSOR 160.45-RP2.2
RENEWAL PARTS – E COMPRESSORS 160.48-RP1
RENEWAL PARTS – F COMPRESSORS 160.48-RP2
RENEWAL PARTS – C3 COMPRESSORS 160.48-RP4
WIRING (WITH EM STARTER) 160.48-PA19
WIRING (WITH SOLID STATE STARTER) 160.48-PA20
WIRING (WITH VARIABLE SPEED DRIVE) 160.48-PA21
REFERENCE LITERATURE