![background image](http://html2.mh-extra.com/html/york/ys/ys_owners-manual_4772859012.webp)
1
JOHNSON CONTROLS
warning Messages include:
• Real Time Clock Failure
• Setpoint Override
• Condenser – High pressure Limit
• evaporator – Low pressure Limit
• Freeze Threat From Operating Chiller
• Freeze Threat, Condenser Flow Switch Open
• Low Discharge Superheat Limit
• Low Discharge Superheat Detected
• Maximum Load – Load Limit
• Minimum Load – Load Limit
• Oil – Dirty Filter
• Oil – High Temperature
• Slide Valve Uncalibrated
Routine Shutdown Messages Include:
• Remote Stop
• Local Stop
• place Compressor Switch In Run position
Cycling Shutdown Messages Include:
• Multiunit Cycling – Contacts Open
• System Cycling – Contacts Open
• Control panel – power Failure
• Leaving Chilled Liquid – Low Temperature
• Leaving Chilled Liquid – Flow Switch Open
• Condenser – Flow Switch Open
• Motor Controller – Contacts Open
• Motor Controller – Loss of Current
• power Fault
• Control panel – Schedule
Solid State Starter Only (LCSSS)
• Initialization Failed
• Serial Communications
• Requesting Fault Data
• Stop Contacts Open
• power Fault
• Low phase (X) Temperature Sensor
• Run Signal
• Invalid Current Scale Selection
• phase Locked Loop
• Low Supply Line Voltage
• High Supply Line Voltage
• Logic Board processor
• Logic Board power Supply
• phase Loss
Safety Shutdown Messages include:
• evaporator – Low pressure
• evaporator – Low pressure – Smart Freeze
• evaporator – Transducer or Leaving Liquid probe
• evaporator – Transducer or Temperature Sensor
• Condenser – High pressure Contacts Open
• Condenser – High pressure
• Condenser – pressure Transducer Out of Range
• Auxiliary Safety – Contacts Closed
• Discharge – High Temperature
• Discharge – Low Temperature
• Oil – High Temperature
• Oil – Low Differential pressure
• Oil – Low Differential Seal pressure
• Oil or Condenser Transducer error
• Oil – Clogged Filter
• Oil – High pressure
• Oil – Separator – Low Level
• Control panel – power Failure
• watchdog – Software Reboot
Solid State Starter Only (LCSSS)
• Shutdown – Requesting Fault Data . . .
• High Instantaneous Current
• High phase (X) Heatsink Temperature – Running
• 105% Motor Current Overload
• Motor or Starter – Current Imbalance
• Open SCR
• phase Rotation
OptiView Control Center
- continued