3064298_201805 85
Additionalfunctions
30.3 PVincrease
The PV increase function enables an adjustment in heat pump operation, e.g. when connected to a photovoltaic
(PV) system to optimise on-site consumption of PV energy.
Anexternalswitchingcommand(oatingcontactonterminalX1–11/12)canincreasethesettemperaturefor
heating and/or DHW, or enable the active cooling function.
The heat pump can be operated using a compressor, electric heater, or both a compressor and electric heater.
Whenconguringon-sitetechnicaldevices(e.g.PVinverter),takethemaximumpossiblepowerconsumptionof
theheatpumpintoaccount(seespecication).
The PV increase status message is shown on the status pages of the BM-2 programming unit and in the
"Displays"/"Heating appliance" submenu on the AM display module and BM-2 programming unit.
PVincreaseforheatingispossibleonlyinsystemcongurationswithheaderreturntemperaturesensorSAF
(T_headerRTN) and where the outside temperature is below the set winter/summer changeover.
For active cooling with PV increase, active cooling must be enabled in the AM/BM-2 standard settings, as well as
in contractor parameters WP058 and WP033. In addition, the outside temperature must be above the set winter/
summer changeover and the enable temperature for active cooling (WP053).
PV increase is not possible whilst power-OFF is active.
If the power-OFF function is not used, insert a jumper at terminal X1 – 9/10.
If standby mode is set on the BM-2 programming unit, PV increase is unavailable.
Terminal X1 – 11/12 Function: PV status:
Open Heat pump standard mode Standard mode
Bridged PV increase active (= activation on
heating/cooling demand even outside
set switching times and on shutdown
during automatic mode (ECO-ABS);
during heating or DHW operation with
increase of set temperatures according
to settings of WP026 and WP027)
Start command
Contractor parameters Meaning Setting:
WP025 Smart Grid OFF (= factory setting)
WP026 Set heating temperature increase 0 ... 20 °C
WP027 Set DHW temperature increase 0 ... 40 °C
WP028 Heat generator activation OFF, HP, HP+elec.htg, elec. heater
WP032 Heating with SG/PV ON, OFF
WP033 Cooling with SG/PV ON, OFF
To Next Page
Loading...
Need help?
General
