Johnson Controls YORK OPTIVIEW YK Series Service Instructions Manual page 7

FORM 160.54-M1
SECTION 27 - HEAT RECOVERY ........................................................................................................................ 211
Inputs/Outputs .............................................................................................................................................. 211
Control .......................................................................................................................................................... 211
Remote Hot Water Setpoint .......................................................................................................................... 215
Condenser Flow Switch Open Fault ............................................................................................................. 215
SECTION 28 - HEAD PRESSURE CONTROL ....................................................................................................217
Inputs/Outputs .............................................................................................................................................. 217
Control .......................................................................................................................................................... 218
Operation when Equipped with Both Heat Recovery and Head Pressure Control ...................................... 219
SECTION 29 - QUICK START ..............................................................................................................................221
Quick Start Modes ........................................................................................................................................ 221
Setpoints ...................................................................................................................................................... 221
Operation ...................................................................................................................................................... 223
SECTION 30 - HEAT PUMP DUTY .......................................................................................................................227
Inputs/Outputs .............................................................................................................................................. 227
Setpoints ...................................................................................................................................................... 227
Control .......................................................................................................................................................... 228
Hot Gas Bypass Control ............................................................................................................................... 229
Heat Recovery and Head Pressure Control ................................................................................................. 229
Quick Start .................................................................................................................................................... 229
Variable Speed Drive .................................................................................................................................... 229
Condenser Temperature Range ................................................................................................................. 229
Condenser High Pressure Warning .............................................................................................................. 229
GPIC Objects ............................................................................................................................................... 229
SECTION 31 - MOTOR MONITORING ................................................................................................................231
Motor Monitoring Board ................................................................................................................................ 233
Winding Temperatures.................................................................................................................................. 236
Bearing Temperatures .................................................................................................................................. 238
Vibration ....................................................................................................................................................... 239
Cooling Coil Leak Detection ......................................................................................................................... 241
SECTION 32 - SYSTEM CALIBRATION, SERVICE SETPOINTS AND RESET PROCEDURES ....................... 245
Electro-Mechanical Starter Applications ....................................................................................................... 245
Solid State Starter Applications .................................................................................................................... 246
Compressor Motor Variable Speed Drive Applications ................................................................................. 250
Proximity Probe ............................................................................................................................................ 253
High Speed Thrust Bearing Limit Switch ...................................................................................................... 254
Refrigerant Level Control ............................................................................................................................. 254
Oil Pump Variable Speed Drive .................................................................................................................... 256
Oil Return Min .............................................................................................................................................. 257
Standby Lubrication ...................................................................................................................................... 257
High Condenser Pressure Warning Threshold ............................................................................................. 257
Brine Low Evaporator Pressure Cutout ........................................................................................................ 258
Leaving Chilled Liquid Temperature Control Sensitivity ............................................................................... 258
Drop Leg Refrigerant Temperature ............................................................................................................... 258
Smart Freeze Protection .............................................................................................................................. 259
Evaporator Refrigerant Temperature ............................................................................................................ 259
Hot Gas Bypass Control ............................................................................................................................... 259
JOHNSON CONTROLS
TABLE OF CONTENTS (CONT'D)
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