3
2.2. Connecting R32 heat pump (KHA/KHC) to KSM
Connection between ports H1 and H2 (H1 connected to H1 and H2 connected to H2) on both module
and heat pump’s control panel are required for correct communication between devices.
Connections should be made with cables with cross-section between 0.15 and 0.5 mm². Cables’ ends
should be terminated with terminals or covered with solder. To avoid mistakes cables should have
different colors than power cables.
Connection schematic is shown below
2.3. Connector discription
KSM module inputs and outputs are shown below
N, L - main power 230V input
H1, H2 - MODBUS protocol connectors
A, B - C14 protocol connectors
G, U - +12V output
LAN - internet connection (RJ45)
Configuration switches set to
„OFF”
