Daikin EKHHP300AA2V3 Installation And Operating Instructions Manual

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Installation and operating instructions16DAIKIN EKHHP(3/5)00AA2V3DAIKIN Hot water heat pump008.1423444_05 – 08/20164 x Set-up and installation4.8.3 Connection EVU receiver (intelligent regulatorSmart Grid - SG)Once the function is activated by the parameter [7-00] = 3 (seeSection 7.5.2), the heat pump is changed to Stand-By, Normal oran operating mode with higher temperatures, depending on thesignal from the energy supply company.To do this, the potential-free switchinf contacts HT/NT + SG ofthe EVU receiver need to be connected to the terminal rail con-nections (GND+IN1) / (GND+IN2) of the DAIKIN EKHHP (seeFig. 4-12).As soon as the function Smart Grid is active, the HT/NT functionis deactivated automatically. Depending on the value of the pa-rameter [7-00], the heat pump is operated differently (seeTab. 7-3).4.8.4 Optional: Connection of an external heatgeneratorWhen using an external heat generator, this can be connectedusing a potential-free switching contact (HT/NT) on the DAIKINEKHHP.If the potential-free switching contact is closed by an externalheat generator, the DAIKIN EKHHP reduces its own heat gener-ation in order to favour the external heat generator (settings seeSection 7.5.2).HT/NT High/low tariff mains connection (EVU receiver)SG Smart Grid connection (EVU receiver)GND+IN1 connection HT/NT switching contact on EKHHPGND+IN2 connection Smart Grid switching contact on EKHHPX2M Terminal rail on EKHHPFig. 4-12 Electrical connection HT/NT - and Smart Grid switching con-tactGND + IN1 connection potential-free switching contact on EKHHPWEX External heat generatorX2M Terminal rail on EKHHPFig. 4-13 External heat generator electrical connection