Room thermostats for fan coils

RAB.. – room thermostats

Room thermostat

The RAB.. room thermostats are tailored for 2-pipe and 4-pipe fan coil applications. The RAB.. room thermostat is used in heating or cooling systems to maintain the selected room temperature by setting the point knob on the front of the unit. The fan speed is selected with a slider switch also located on the front.

Typical use

  • Control of zone valves, thermal valves, and/or fans to heat or cool the temperature in a room


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RCC.. – room thermostats

Room thermostat

The RCC.. room thermostats combine easiest operation with the highest flexibility. This and the attractive design make them especially suitable for hotel rooms. The desired room temperature is selected via the set point knob on the front of the unit.

Typical use

  • Control of the room temperature in individual rooms that are heated or cooled with 2-pipe fan coil units

  • For opening or closing a valve and for switching a 3-speed fan.


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RDF.. – room thermostats

Room thermostat

The digital RDF room thermostats are tailored for 2-pipe, 2-pipe plus electric heater and 4-pipe fan coil applications with automatic heat/cool change over. The desired room temperature is selected via push buttons on the front of the thermostat.

Typical use

  • For control of the room temperature in individual rooms that are heated or cooled with 2-pipe fan coil units

  • For the control of rooms that are cooled with DX type equipment

  • For opening or closing a valve and for switching a 3-speed fan


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RDG.. – room thermostats

Room thermostat

The RDG.. room thermostats are very versatile. Thanks to their large display and intuitive operating concept with setting knob and large buttons, the units are extremely user-friendly and the backlit display even allows the unit to be operated in the dark. The required application can simply be selected via DIP switches before mounting the unit. The RDG.. uses for the room temperature control either a 2-position, P or PI algorithm.

Typical use

  • Control of chilled or heated ceiling with electrical heater, radiator, or floor heating

  • 2-stage heating or cooling applications

  • Additional function like remote temperature sensing for return air control, operating mode switchover to command energy saving mode, floor temperature limitation, dew point monitoring etc.


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