6321 Series Multifunctional Control Elements with Bus Coupler and IR Receiver Instructions

This document provides multilingual mounting, commissioning, and operating instructions for the Busch-Jaeger 6321 series multifunctional control elements with integrated bus coupler and IR receiver, including room temperature controller models 6321/38-... and 6321/58-... for fan convector or conventional heating/cooling systems. It covers technical data, safety warnings, physical address input, display modes, and operating functions such as ECO mode, fan speed control, and heating/cooling switchover.