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AH1-5

Defrost Controller for refrigerated transports – 77x35x90mm

Main features
• Selectable Heating/Refrigerating control with Neutral Band
• Selectable NTC10K or PTC input
• Defrost timer backup in case of power failure
• Direct compressor control through high power relay
• 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-AH1 key
• Connection to LAE supervisory systems

Applications
Refrigerated transports, HT and LT cold storage rooms, plug-in cabinets, display cases, open counters. 

Technical Data
Control Range: -50÷120°C, -55÷240°F
Resolution: 0.1/1°C; 1°F
Accuracy:
  NTC10K: < ±0.3°C (-40.0÷70.0°C)
  PTC1000: < ±0.5°C (-50÷120°C) 
Sensor type:
  NTC10K standard mod. SN4K20P1/P2/P3 or
  PTC1000 standard mod. ST1K20P1/P2/P3
Power supply: 115÷230V~ ±10%  50÷60Hz  3W
Front protection: IP55
Panel cut-out: 71×29 mm
Ambient temperature: -10÷50°C