Sonnen sonnenBatterie eco 7.0 Series, Operation And Installation Instructions Manual, Page: 50 / 115

6 Electrical connection
6.6.4 Connecting heat pump
Installation of the two-rate meter must be carried out by the power utility or
network operator.
A heat pump billed by its own two-rate meter is located in a separate circuit, where
control of the storage system cannot consider consumption of the heat pump. The
Control heat pump option enables the heat pump to be switched to the circuit of
the consumed power meter. Consumption of the heat pump is then registered and
considered in control of the storage system.
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Connect the circuit as in the Figure overleaf.
Terminals 8, 9, 10 and 11 are all on GND potential.
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Join the coil connections A2 of K30 and K40 to one of these terminals.
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On the touch screen under „Settings-Behavior-Behavior“ change the button
„Heat pump operation over battery“ from „No“ to „Yes“.
Operating principle
Contactors K30 and K40 are connected on the outputs of the storage system.
Actuating the button „Heat pump powered by battery“ activates output 24 and
switches K30, which in turn causes contactor K31 to pick up. K31 separates the
heat pump from power through the public grid. Approx. 5 seconds after activation
of output 24, output 25 is activated to switch K40, which in turn causes contactor
K41 to pick up. K41 connects the heat pump to the circuit of the storage system.
Page 50 of 115 KD-262 | Part-No 52199 | EN | Version 1.00