FORM 150.26-EG1 (116)
JOHNSON CONTROLS
9
• Low liquid temperature cutout
• Low suction pressure cutout
• High discharge pressure cutout
• Anti-recycle timer (compressor start cycle time)
• Anti-coincident timer (delay compressor starts)
Unit section to:
• Set time
• Set unit options
The microprocessor control center is capable of displaying the following:
• Return and leaving chilled liquid temperature
• Low leaving liquid temperature cutout setting
• English or Metric data
• Suction pressure cutout setting
• Each system suction pressure
• Discharge pressure
• Liquid Temperature Reset via a Building Automation System via one of the following:
• 0-20 VDC input, 0-10 VDC input or a 4-20mA input
• Anti-recycle timer status for each system
• Anti-coincident system start timer condition
• Compressor run status
• No cooling load condition
• Day, date and time
• Daily start/stop times
• Holiday status
• Automatic or manual system lead/lag control
• Lead system definition
• Compressor starts & operating hours (each compressor)
• Status of hot gas valves (if supplied)
• Run permissive status
• Number of compressors running
• Liquid solenoid valve status
• Load & unload timer status
Microprocessor Controls (Cont'd)
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