Step 5: Switching Between 1 Cooling Stage and 2 Cooling Stages Modes

The fan coil unit can operate with one cooling device or with two cooling devices. This needs to be configured with the 3rd DIP switch CFG.

2 Stages of Cooling in 4-Pipe Fan Coil Unit

2 stages of cooling in 2-pipe FCU installation

For more information on configuring stages of cooling, check the iSMA-B-FCU Application manual.