Stulz EC Tower ECD 91 - Annex

140140 EN/01.2019/G22 © STULZ GmbH – all rights reserved
ec tower technical manual
Contents
1. Information on this document ......................................................................142
1.1 Scope ................................................................................................................................... 142
1.2 Target group ....................................................................................................................... 142
1.3 Presentation conventions ............................................................................................. 142
1.4 Abbreviations ..................................................................................................................... 143
1.5 Formatting .......................................................................................................................... 143
1.6 Nomenclature .................................................................................................................... 143
1.7 Liability claims for defects ............................................................................................. 144
1.8 Disclaimer ........................................................................................................................... 144
1.9 Copyright ............................................................................................................................ 144
2. Safety ..............................................................................................................144
2.1 Proper use .......................................................................................................................... 144
2.2 Safety instructions ........................................................................................................... 145
2.3 Required personnel qualifications ............................................................................. 145
2.4 Other applicable documents ........................................................................................ 145
3. Product description .......................................................................................146
3.1 Types of connection ........................................................................................................ 146
3.1.1 Analog input ............................................................................................................. 146
3.1.2 Digital inputs ............................................................................................................ 146
3.1.3 Digital outputs ......................................................................................................... 146
3.1.4 X/Y remote control bus........................................................................................ 146
3.2 InterfaceIIIk connection assignment ....................................................................... 147
3.3 DIP switch S1 .................................................................................................................... 148
3.4 DIP switch S2 .................................................................................................................... 148
3.5 7-segment display .......................................................................................................... 149
4. InterfaceIIIk functions ................................................................................. 149
4.1 Analog input functions .................................................................................................... 149
4.1.1 Direct frequency request via a 010V DC signal ........................................ 149
4.2 Functions via the digital inputs..................................................................................... 150
4.2.1 Evaluating the analog input ................................................................................ 150
4.2.2 Remote ON/OFF ................................................................................................... 150
4.2.3 Mode selection (Cooling/Heating/Fan) ......................................................... 150
4.3 Special functions ............................................................................................................. 150
4.3.1 Forced mode ........................................................................................................... 150
4.3.2 Inversion of digital outputs .................................................................................. 150
4.3.4 Alarm signal.............................................................................................................. 151
4.3.5 Status signals ......................................................................................................... 151
4.3.3 Status of the InterfaceIIIk (master/slave) ..................................................... 151
5. Program overview .......................................................................................... 152