English
From the control perspective, fan coil units are manufactured in various versions. The following figure shows an example of a typical connection with a three-speed fan, two-position heating drives and cooling, with an example of connection of a condensation sensor and two temperature sensors. The C-HM-0308M module used in this case offers a possibility of controlling e.g. analogue-controlled drives, or controlling the revolutions of the EC motor, scanning the condensation sensor, etc.
Fig. 1. An example of controlling a four-pipe fan coil unit with a three-speed fan