Connection diagrams for fan coil units (~220 V)

Below you can find 2 wiring diagrams for fan coil units, equipped with a 3-speed AC motor (~220V) and normally closed valve(s) with thermoelectrical actuators.

4-pipe system

4-pipe system connection diagrams for fan coil units

2-pipe system

2 pipe system connection diagrams for fan coil units

Install a jumper between terminal HV-O and CV-O.

Connection diagrams for fan coil units (~220 V)

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