Solar controller - elios

Digital solar differential temperature controller Elios Midi for solar heating plants: it compares temperatures of fluids in the collectors and the storage tanks and, when the difference is greater than DeltaT, starts the heat exchange through the pump. 3 temperature inputs from NTC sensors and 2 on-off relay outputs SPST. Additional thermostats for driving auxiliary heat sources. All temperatures are displayed. Configuration of 7 different system layouts. Contextual parameters. Minimum thermostat. Offset correction for the measured temperatures. Self diagnostic feature, with visual and acoustic alarms.

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Technical features
  • Power supply 230V ~ ±10% 50Hz
  • Power absorption <2 VA
  • Inputs 3 x NTC 10K Ohm @ 25°C
  • Sensor operating range 2NTC 10K (-50°C÷110°C)   -     1NTC 10K (-50°C÷200°C)
  • Temperature reading range -20°C .. 180°C
  • Accuracy ±2°C
  • Resolution 0,1°C fino a 99,9°C/ -20 +144,1°C up to 145 ÷180°C
  • Offset adjustment on S1, S2, S3 ±5°C
  • Installer password 0000 .. 9999 (default 0000)
  • Acoustic signal On/Off (default On)
  • Back light timing 20 sec. from last keypress
  • Contacts rating 2 x 2(1)A max @ 250V~ (SPST) voltage free
  • Protection grade IP40
  • Operating temperature range 0°C .. 40°C
  • Storage temperature range -10°C .. +50°C
  • Humidity 20% .. 80% non-condensing
  • Case ABS VO self-extinguishing
  • Dimensions H108 W156 D47mm
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