FCA/S 1.1M Fan Coil Actuator Product Overview

This document provides a product overview and technical description of the ABB i-bus® KNX Fan Coil-Actuator FCA/S 1.1M, a single-fold modular DIN rail component (MDRC) for controlling fan coil units. It details the actuator’s functions, including switch contact, 3-speed fan control, heating/cooling valve operation, manual plastic foil keypad, program button/LED, and binary input, with an example of a 4-pipe system featuring two heat exchangers and separate cooling and heating circuits.