iSMA-B-FCU Quick Start-up
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DMP245en | 1st Issue rev. 1 | 04/2022
page 13 of 56
3.5.1 2 Stages of Heating in 4-Pipe Fan Coil Unit
Figure 5. 2 stages of heating in 4-pipe FCU installation
For more information on configuring stages of heating, check the iSMA-B-FCU Application
manual.
3.6 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.
3.6.1 2 Stages of Cooling in 4-Pipe Fan Coil Unit
