AR2-27

Universal configurable Defrost Controller for control panels

Main features
• Selectable Refrigerating or Heating control
• Selectable NTC10K or PTC input
• FLEXICOLD function for energy saving or alternative setpoint
• Cyclic defrosts or scheduled real time starts
• Synchronized defrost start and termination with master-slave connection
• Optional control of a second compressor or evaporator
• Excellent evaporator fan control
• Absolute or relative temperature alarms and door open alarm
• Temperature and pressure monitoring and condensing unit maintenance
• Light and standby control (On/Off)
• Quick programming through ZOT-AR2
• Connection to LAE supervisory systems 

Applications:
On control panels for the control of cold stores, plug-in and supermarket display cases.

Technical Data
Control Range: -50÷120°C, -55…240°F
Resolution: 0.1 / 1 °C; °F
Accuracy:  NTC10K: <±0.3°C (-40.0÷70.0°C)
PTC1000:  <±0.5°C (-50÷120°C) 
Sensor type:   selectable NTC10K standard mod. SN4K20P1/P2/P3
  or PTC1000 standard mod. ST1K20P1/P2/P3
Power supply: 230Vac  ±10%  50÷60Hz   3W
Rechargeable battery:  >150 hours
Front protection: IP55
Ambient temperature: -10÷50°C