mundoclima BBC 200 Manuel D'installation page 86

8 - ELECTRICAL CONNECTIONS
Scheme 2: the heat pump cannot operate together with the solar pump.
Electrical connections
Solar controller signal input
CN26
CN2 Solar pump control
CN11 Unit control
Operating logic
T5U
(Storage tank temp. sensor Upper)
≤ 60°C
≥ 65°C
Note: solar pump must be controlled through AC contactor.
The CN2 is not allowed to drive the pump directly.
Solar panel
Solar control unit
220-240
220-240
Enabled / disabled
CN26 (in) CN2 (out)
220-240 220-240
0
When the solar control unit check the temperature is OK in
solar panel, it will output 220-240V signal.
Solar probe
SOLAR
PUMP
ON
0 OFF
Power supply
AC contactor
Solar pump
CN11 Unit
ON Disabled
OFF Enabled
Power supply
Solar probe
well
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