To use this function, it is necessary to have at least firmware version 4.30 on the REG-DIN-8 and to use a RegConfig version 4.30 or later.
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The REG System provides up to 8 Dehumidifier/Integration units, therefore, if in a system there are up to 8 fan coils, in as many rooms it is possible, for each zone, to manage a fan coil, using the Dehumidifiers page used as Integration, independently. For example, if there are 4 zones each with a fan coil for heating and cooling (or only cooling), each zone will be associated with a Dehumidifier in the Integration column:PHOTO TBD
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In the Dehumidifier page, on each sub page D1, D2, D3, and D4 will be set:
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Low, medium, or high speed of each fan coil depends on the integration offset set in Configuration 2:PHOTO TBD
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Therefore, if the difference between the temperature read by the sensor of each zone and the set point set exceeds 1 K, the fan coil speed will be low, if it exceeds 2 K it will be medium and if it exceeds 3 K it will be high.
In the REGDIN OUTPUT page, the Analog Outputs to be connected to the 4 fan coils are the speeds of each dehumidifier (used as Integration) independent of each other:PHOTO TBD
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If the fan coils are more than 8, it is no longer possible to follow this path.
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Assume having 10 rooms, each of which is heated and cooled by 1 fan coil, which are associated with the zone in the Integration column:PHOTO TBD
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The REG System can manage maximum 8 fan coil speed groups, as 8 are the available Dehumidifier/Integration units to rely on, therefore in the case at hand it is necessary to identify two pairs of room in which, reasonably, it is possible to manage with the same speed fan coils which are not in the same room, in the example are defined:
Living Room room and Hall Hallway → Integration 1 (1 fan coil for each zone)
Kitchen → Integration 2 (1 fan coil)
Room 1 → Integration 3 (1 fan coil)
Room 2 → Integration 4 (1 fan coil)
Room 3 → Integration 5 (1 fan coil)
Dining Room → Integration 6 (1 fan coil)
Bathroom 1 e Bathroom 2 → Integration 7 (1 fan coil for each bathroom)
Study Studio → Integration 8 (1 fan coil)
Note
In this example it is not provided which dehumidifier/integration units can be used for anything else (e.g., a ventilation unit). But, if the available dehumidification/integration unit are less than 8, it is necessary to unify as much as possible the fan coil that have the same mapping between speed and volts. Therefore, if it is assumed that two dehumidification/integration units are already occupied, the 10 fan coils in the example could be grouped as follows:
Living Room room and Hall → Integration 1 (1 fan coil for each zone)
Kitchen → Integration 2 (1 fan coil)
Room 1 / 2 / 3 → Integration 3 (1 fan coil for each zone)
Bathroom 1 e Bathroom 2 → Integration 4 (1 fan coil for each zone)
Dining Room → Integration 5 (1 fan coil)
Study Studio → Integration 6 (1 fan coil)
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The Air Flow Rate can all be different depending on the requirements of the individual fan coil speed group. For example, in Room 1 the flow rates are lower than in the Living Room/Hall group:PHOTO TBD
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If two zones rely on the same Integration unit, to take the 0/10 speed value, it is not certain that the speed at which the fan coils are operated are the same.
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The temperature read by the sensor in the Living Room is 28,9°C 2°C with set point 27°C → delta = 1,9 2 K
The temperature read by the probe in the Hall is 30°C with set point 25,5°C → delta = 4,5 K
Therefore, the Living Room fan coil will run at low speed (4 V – 40%) because the delta is between 2 (medium speed offset) > 1,9 2 K > 1 K (low speed offset), whereas the Hall fan coil will run at high speed (9 V – 90%) because the delta is 4,5 K > 3 K (high speed offset).
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On the REGDIN Outputs page, the Analog Outputs to be connected to the 10 fan coils are no longer the speeds of each dehumidifier (used as Integration), but the 0/10 value transmitted from each individual zone, corresponding to the 0/10 value of the speed (high/medium/low defined by the zone) taken from the integration unity associated with the same zone:PHOTO TBD
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Therefore, on the REGDIN Outputs page, is associated with, for example:
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A system of this type requires many 0/10 outputs (as many as the installed fan coils); therefore, it is advisable to use the REG-IOC modules, which have two 0/10V analogue outputs each and can be set in the IO/B Output page from number 92 to 99:PHOTO TBD
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Warning
Currently, even if the NC (Not Configured) value is shown, the function is still active; to check the output voltage it is necessary to use a tester.
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For example, if the zone 10 (study) had 2 fan coils, the IO/B Output page would dedicate 2 analogue outputs to zone 10:PHOTO TBD
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It is obvious that, in this case, since the room sensor is the same, UA2/94 e UA1/95 outputs will always have the same value and the two fan coils will work at the same speed.