NQ Series Controller

Each NQ Series portable chiller comes standard with a large 7 inch color touchscreen user interface and use a PLC controller to provide useful information on operation, monitoring, diagnostic and trending data.

The optional, more advanced Premium Control, comes with expanded diagnostic and communication capabilities. The Premium Control is standard on all NQV Series portable chillers.

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Features

Display Parameters
  • Process fluid supply and return temperatures
  • Evaporator  fluid leaving temperature
  • Process fluid supply pressure
  • Compressor  running hours
  • Pump running hours
  • Condenser  fan running hours
  • Refrigerant suction pressure
Alarms and Warnings
  • High process fluid temperature
  • Low process fluid temperature
  • Evaporator  fluid freeze
  • Evaporator  fluid flow
  • Refrigerant high pressure
  • Refrigerant low pressure
  • Compressor  overload
  • Pump overload
  • Condenser  fan overload
  • Reservoir low level
Communications and Remote Interfaces
  • Process fluid supply temperature (0-10 VDC)
  • Remote start/stop
  • Alarm  contact
  • Modbus RTU
  • Refrigerant suction temperature and superheat
  • Refrigerant liquid temperature and subcooling
  • Refrigeration discharge pressure
  • Refrigerant discharge temperature

Optional Premium Control Features 

(Standard on NQV Series Portable Chillers)

For applications that require more advanced system monitoring and/or require additional types of communications options the Premium Control provides more robust control features.

In addition to the standard control features, the Premium Control adds monitoring of:

  • Refrigerant suction temperature and superheat
  • Refrigerant liquid temperature and subcooling
  • Refrigeration discharge pressure
  • Refrigerant discharge temperature

In addition to the standard control Modus RTU communications, the Premium Control adds:

  • Modbus TCP/IP
  • BACnet MS/TP (optional in place of Modbus RTU)
  • BACnet/IP (optional in place of Modbus TCP/IP)
  • CONNEX4.0 ready
  • Primary/Secondary capabilities
  • Winfactory 4.0 Ready
  • Free Cooling (additional hardware required)
  • Two separate loops of heat exchanger temperature control (additional hardware required)

Contact us about Accuchiller NQ Series Controller Options

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