7
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS JCI COMPANY CONFIDENTIAL
TABLE OF CONTENTS (CONT'D)
SECTION 27 - LARGE TONNAGE CHILLER (LTC) I/O BOARD 031-02895-000/001 ........................................231
Digital Inputs .................................................................................................................................................231
Digital Outputs .............................................................................................................................................. 233
Analog Inputs ...............................................................................................................................................234
Analog Outputs .............................................................................................................................................235
Auto Detection ............................................................................................................................................. 236
Diagnostic Screen .......................................................................................................................................236
SECTION 28 - HEAT RECOVERY ........................................................................................................................ 237
Inputs/Outputs ..............................................................................................................................................237
Control .......................................................................................................................................................... 237
Remote Hot Water Setpoint ..........................................................................................................................241
Condenser Flow Switch Open Fault ............................................................................................................. 241
SECTION 29 - HEAD PRESSURE CONTROL ....................................................................................................243
Inputs/Outputs ..............................................................................................................................................243
Control .......................................................................................................................................................... 244
Operation when Equipped with Both Heat Recovery and Head Pressure Control ......................................245
SECTION 30 - QUICK START ..............................................................................................................................247
Quick Start Modes ........................................................................................................................................ 247
Setpoints ......................................................................................................................................................247
Operation ......................................................................................................................................................249
SECTION 31 - HEAT PUMP DUTY .......................................................................................................................253
Inputs/Outputs ..............................................................................................................................................253
Setpoints ......................................................................................................................................................253
Control .......................................................................................................................................................... 254
Hot Gas Bypass Control ............................................................................................................................... 255
Heat Recovery and Head Pressure Control .................................................................................................255
Quick Start ....................................................................................................................................................255
Variable Speed Drive ....................................................................................................................................255
Condenser Temperature Range ..................................................................................................................255
Condenser High Pressure Warning ..............................................................................................................255
GPIC Objects ...............................................................................................................................................255
SECTION 32 - MOTOR MONITORING ................................................................................................................257
Motor Monitoring Board ................................................................................................................................ 259
Winding Temperatures..................................................................................................................................262
Bearing Temperatures ..................................................................................................................................264
Vibration ....................................................................................................................................................... 265
Cooling Coil Leak Detection .........................................................................................................................267
SECTION 33 - SYSTEM CALIBRATION, SERVICE SETPOINTS, AND RESET PROCEDURES ......................271
Electromechanical Starter Applications ........................................................................................................271
Solid State Starter Applications ....................................................................................................................272
Compressor Motor Variable Speed Drive Applications .................................................................................276
Proximity Probe ............................................................................................................................................279
High Speed Thrust Bearing Limit Switch ...................................................................................................... 280
Refrigerant Level Control .............................................................................................................................280
Oil Pump Variable Speed Drive .................................................................................................................... 282