3
KaCool D AF –
Comfortable feeling of well-being, thanks to AtmosFeel
3.25
Chilled water air conditioning system
Installation and operating instructions
6.8 KaControl model................................................... 50
6.8.1 Operation of the KaController ............................ 51
6.8.1.1 Function keys, display elements........................... 52
6.8.1.2 Operation.............................................................. 53
6.9 Alarm messages .................................................... 64
6.10 KaController installation...................................... 65
6.10.1 Troubleshooting A11 – A17.................................. 66
6.11 Cabling .................................................................. 68
6.11.1 General information............................................. 68
6.11.2 KaController.......................................................... 68
6.11.3 External room temperature sensor...................... 69
6.11.4 Inputs for processing external contacts
(e.g. on-site BMS etc.)........................................... 69
6.11.5 Internal temperature sensor / air intake sensor.. 69
6.12 Addressing – Single-circuit controls..................... 70
6.13 Settingtheunitcongurationbymeansof
DIP switches........................................................... 71
6.14 Parameter settings................................................ 74
6.15 Parameter settings................................................ 75
6.15.1 Setting absolute setpoint temperature or ± 3K.. 75
6.15.2 ON/OFF, Eco/Day function .................................... 76
6.15.3 Heating/cooling changeover via clip-on sensor
in 2-pipe systems................................................... 77
6.15.3.1 Setting DIP switch no. 3, DIP switch no. 4 ........... 77
6.15.3.2 Automatic heating/cooling changeover mode
setting.................................................................... 78
6.15.3.3 Heating mode limit values ................................... 78
6.15.3.4 Cooling mode limit values.................................... 79
6.15.3.5 Cyclic opening and closing of the straight
valve or 3-way valve ............................................. 79
6.15.4 Function of digital inputs DI1 and DI2 ................ 80
6.15.4.1 Function of DI1 ..................................................... 80
6.15.4.2 Function of DI2 ..................................................... 81
6.15.5 Function of digital outputs V1 and V2 ................ 82
6.15.5.1 Digital output V1.................................................. 82
6.15.5.2 Digital output V2.................................................. 82
6.15.6 External control via 0..10 Volts ............................ 83
Contents
