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U•C2 control unit for Refrigerant Gases


Manufacturer Ref. : U•C2


The U•C2 control unit for Refrigerant Gases has two channels to monitor the concentration of NH₃, CO₂ and freon gases / Rxxx gases in refrigerated rooms. Read more

The U•C2 control unit for Refrigerant Gases monitors concentrations of ammonia dioxide NH₃ (R717) or carbon dioxide CO₂ (R744), of freon, of Rxxx, refrigerant gases from 1000 to 10000 ppm (this list is not exhaustive).

The U•C2 control unit has 2 detection input points and up to 4 alarm thresholds per unit. The U•C2 is fully compatible with the D•420 detector. The U•C2 control unit manages a full range of accessories and controlled devices.

When the programmed alarm thresholds are reached, the U•C2 control unit has the choice of acting on one or more connected security devices, such as:

  • ventilation system control (air blowers or extractors),
  • activation of an alarm,
  • turning on a flashing light,
  • closing a gas valve,
  • cutting off the power supply to refrigeration unit,
  • sending a control signal to a centralised technical management system (CTMS), …

The U•C2 control unit comes with a password protected service menu. The device housing is IP65 (dust and waterproof) and ABS-PC UL 94 V-0: flame retardant. It is designed to be permanently mounted on a wall surface or on a DIN TS35 rail with a mounting fixing.

The U•C2comes with a three-year warranty on all new installations.

  • Number of measurement channels :
  • Number of alarm relays :
  • Connectivity :
  • Protection class :
  • Power supply scope :
  • Minimum operating temperature :
  • Maximum operating temperature :

Associated products

Batterie-UH6 (2)

Battery for control unit - 12V


Buzzer for control unit


Combined alarm and flashing light for control unit


D•420 Gas or Oxygen detector


Emergency stop switch for control unit 24 VDC - 230 VAC


Flashing light for control unit


U•BP Battery pack

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