Hydro-Pro Inverter 07, User And Service Manual

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3.7 Electrical connection
Note: Although the heat pump is electrically isolated from the rest of the swimming pool system, this only
prevents the flow of electrical current to or from the water in the pool. Earthing is still required for protection
against short
‐ circuits inside the unit. Always provide a good earth connection.
Before connecting the unit, verify that the supply voltage matches the operating voltage of the heat pump.
It is recommended to connect the heat pump to a circuit with its own fuse or circuit breaker (slow type; curve D)
and to use adequate wiring.
Connect the electrical wires to the terminal block marked ‘ POWER SUPPLY ’.
A second terminal block marked ‘WATER PUMP ’ is located next to the first one. The filter pump (max. 5 A / 240 V)
can be connected to the second terminal block here. This allows the filter pump operation to be controlled by the
heat pump.
Note: In the case of three ‐ phase models, swapping two phases may cause the electric motors to run in the reverse
direction, which can lead to damage. For this reason, the unit has a built ‐ in protective device that breaks the circuit
if the connection is not correct. If the red LED above this safety device lights up, you must swap the connections of
two of the phase wires .