Katherm HK
Assembly, installation and operating instructions
46
DIP switch settings
DIP 1 DIP 2 Factory setting DIP switch function
0 0 OFF
00/KaControl
AI2: Fan speed; MI3: Heating (24 V); MI4: Cooling (24 V)
1 0 OFF
Room thermostat 30456
AI2: Fan speed; MI3: Heating (GND); MI4: Cooling (GND)
0 1 OFF
Room thermostat 146928
AI2: --; MI3: Heating (0-10 V); MI4: Cooling (0-10 V)
DIP 3 OFF
Signal switch-over (DI1)
off: 0 V = LPHW (winter), 24 V = CHW (summer)
on: 0 V = CHW (summer), 24 V = LPHW (winter)
DIP 4 OFF
Max. heat output
off: Uc 1.5 - 6 V = 40-100% heat output
on: Uc 1.5 - 10 V = 40-100% heat output
Tab.15: DIP switch settings
LED status messages
LED Function Colour Code Description
1 Electric heater Yellow
Duration Electric heater 100%
Flashing Electric heater PWM signal
Fast flashing Electric heater locked after cooling mode
2 Fault message Red
1x EC motor fault
2x Condensate pump fault
3x DIP1 + DIP2 simultaneously to ON
4x Heating + cooling simultaneously activated
5x Winter mode + cooling input activated
6x NTC error (overtemperature)
7x DIP switch settings faulty
3 Control status Green
Duration Standby
Flashing Control active
Fast flashing Fan run-on active
Control via 0 – 10 V DC
control signal Function
0 V Off
1.5 V – 10 V Fan 0 – 100%
1.5 V – 6 V Electric heater 40 – 100%
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