Electrical connection
6
Function
If the self-consumption switch is activated, K230, K30 and then Q31 energise (see
Figure 36 – pg. 42). The heat pump current path is interrupted.
K40 energises five seconds after the self-consumption switch is activated. Then
K41 energises. The power meter current path is closed.
The auxiliary make contact 23/24 for Q31 can be used to activate the heat pump.
This requires a suitable interface (6) for the heat pump.
When the self-consumption switch is deactivated, K40 de-energises immediately.
The power meter current path is interrupted.
K30 de-energises five seconds after the self-consumption switch is deactivated.
Then Q31 de-energises. The heat pump current path is closed.
Wiring the heat pump control
►
Wire the heat pump control as shown in Figure 36 (pg. 42).
►
Ensure that a de-energising delay (RV) of 5 seconds is set at relay K30.
►
Ensure that an energising delay (AV) of 5 seconds is set at relay K40.
Configuring software settings
The switching behaviour of the self-consumption switch can be configured using
the commissioning wizard (see Section 7.3 – pg. 56).
►
Set suitable values for the switching behaviour of the self-consumption switch.
The switch-on threshold and the minimum switch-on duration should be set so that
the current paths are not switched back and forth too frequently.
KD-291 | Part no. 52187 | EN | X01
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