RTF/A 1.1 Room Temperature Controller Fan Coil Manual

This document describes the ABB i-bus KNX Room Temperature Controller Fan Coil (RTF/A 1.1), a constant KNX device for controlling fans and coils in 2- and 4-pipe heating and cooling systems. It measures room temperature, sends a continuous control variable (0–100%) to a fan coil actuator, supports four operating modes (Comfort, Standby, Night, Frost protection), and includes three binary inputs for switching, dimming, or shutter control.