Room controller one room Belimo CR24-A3 without control, 5 inputs, 3 outputs. More information
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Medium temperature | 15...36 °C |
Protection IP | IP 30 |
Weight | 0.11 kg |
Catalog sheet download
Download PDFThe Belimo CR24-A3 room controller provides an economical solution for individual temperature control in one room . It is suitable for VAV applications and combined 2 and 4 pipe systems . It has five inputs and two outputs. The outputs can be used to control one or more VAV controllers, heating via a 3-point signal and change over operation.
This is a function of energy efficiency of the controller , where it will heat the room only to its protection level. This function is especially suitable in periods when the room is not used and does not need to be heated or cooled unnecessarily, but still maintains the safe storage of flowers, paintings and more. The heating value is greatly reduced (15 ° C), while the cooling value is greatly increased (40 ° C).
This function is suitable for rooms that are used only occasionally or are temporarily abandoned. The heating and cooling values are adjusted only slightly to reduce costs, but at the same time it was not a problem to bring the room temperature quickly to the desired state.
If the room is cooled down below 10 ° C, the frost protection is activated.
The change over operation allows you to select an output common to both heating and cooling, or to specify it exclusively for one of the options .
An external sensor for sensing the average room temperature in the ventilation duct can be connected to the ai1 input of the controller.
Input ai2 can be used to change the temperature setpoint thanks to an external signal 0 ... 10 V. This function is used for summer / winter compensation.
In heating operation, it allows increased air flow . This is required, for example, for heating with an air heater . The function also improves the air quality when the heating is switched on.
Allows the room to be ventilated by maximum air flow . Especially suitable for quick ventilation during long meetings, in hotel rooms and more. With this function, the room temperature control is not active, but the frost protection still works.
If necessary, the room can be either heated or cooled by the maximum air flow . This function is especially useful if the room needs to be heated quickly or cooled down quickly.
If the room temperature falls below the dew point, the corresponding output changes automatically. It is mainly used in rooms with cooling ceilings, where there is a risk of water condensation.
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