PIA-982027-AIR 85-td-EN | www.ochsner.com 47
System principle schematic
A Main distributor for three-phase power supply
B Indoor unit control box
C Indoor unit
D Heat pump buer tank
E Remote controller
1 Control circuit
2 Main electrical circuit (compressor and fan)
3 PSU signal contact
4 Outdoor temperature
5 Heat generator pump
6 Top buer sensor (TPO)
7 Bottom buer sensor (TPM)
8 Heating circuit pump 1, direct (HCP 1)
9 Mixer sensor (TMK)
10 Heating circuit pump 2, mixed (HCP 2)
Power supply via high limit safety cut-out
11 Heating circuit mixing valve (MVH)
12 Control elements (eBus)
13 Flow sensor
14 2. Heat generator (electric immersion heater)