Installation Guide ECA 30 / 31 for ECL Comfort 210 / 210B / 310 / 310B3.0 Installation3.1 Important safety and product information3.1.1 Important safety and product informationThis Installation Guide is associated with the Remote Control UnitsECA 30 (code no. 087H3200) and ECA 31 (code no. 087H3201).ECA 30 is a remote control unit with room temperature sensor.ECA 31 is a remote control unit with room temperature sensor andrelative humidity sensor.ECA 30 and ECA 31 can be used with ECL Comfort 210 / 210B andECL Comfort 310 / 310 B controllers.For information on general functions please consult the installationguide for the application key in question.Additional documentation for ECL Comfort 210 and 310, modulesand accessories is available on www.ecl.doc.danfoss.com.Safety NoteTo avoid injury of persons and damages to the device, it is absolutelynecessary to read and observe these instructions carefully.Necessary assembly, start-up, and maintenance work must beperformed by qualified and authorized personnel only.The warning sign is used to emphasize special conditions that shouldbe taken into consideration.This symbol indicates that this particular piece of information shouldbe read with special attention.As this Installation Guide covers several system types, special systemsettingswillbemarkedwithasystemtype. Allsystemtypesareshownin the chapter: 'Identifying your system type'.°C (degrees Celsius) is a measured temperature value whereas K(Kelvin) often is used for temperature differences.10 DEN-SMT/DK VI.GU.V1.02 Danfoss District Energy