iSMA-B-FCU Quick Start-up
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DMP245en | 1st Issue rev. 1 | 04/2022
page 21 of 56
4 Examples: Connecting Actuators and Sensors to the Controller
4.1 Connections Overview
Figure 18. Inputs and outputs overview
4.2 Connection Examples
The examples below do not include selection of the temperature control value source.
Connecting the temperature control value source is described in Step 7 of this manual. In
examples, DIP switch sections 5 and 6 are set to OFF.
The 24 V power source for heater and cooler actuators can be taken from L2/N2
connectors.
If 2
nd
stages of heating or cooling is used, check Step 6 for connection information.
4.2.1 4-Pipe Installation with 1 Stage Digital Controlled Heating and
Cooling and Analog Controlled Fan
Figure 19. 4-pipe installation with 1 stage digital controlled heating and cooling and analog controlled fan
