mundoclima Aerotherm BCC 200 CONNECT Manuel D'installation, D'utilisation Et D'entretien page 166

Scheme 2: the heat pump cannot operate together with the solar pump.
Electrical connections
CN32 Solar controller signal input
CN6 Solar pump control
CN29 Unit control
Operating logic
T5U
(Storage tank temp. sensor Upper)
≤ 60°C
≥ 65°C
Note: solar pump must be controlled through AC contactor.
The CN6 is not allowed to drive the pump directly.
Solar panel
Solar control unit
SOLAR SYSTEM (PROVIDED B Y THE CUSTOMER)
220-240
220-240
Enabled / disabled
CN32 (in)
220-240
0
When the solar control unit check the temperature is OK in solar
panel, it will output 220-240V signal.
Solar probe
CN6 (out) SOLAR
PUMP
220-240 ON
0 OFF
Power supply
Power supply
AC contactor
Solar pump
CN29 Unit
ON Disabled
OFF Enabled
Solar probe well