Wolf BWL-1 S - Page 39

393064298_201507
25.2.1 Power-OFF
ThePSUcantemporarilyblockthecompressorortheelectricheatingbymeansofanexternalswitchcommand(oatingcontact).
The system's frost protection and operation of the heating circuit pump continue.
Terminals X1 - 9 and 10 open  Power-OFF active
Terminals X1 - 9 and 10 bridged  Power-OFF inactive
25.2.3 Smart grid
The Smart Grid Ready functionality enables the PSU to optimally adjust grid capacity use through intelligent control of consumers.
Bymeansofanexternalswitchcommand(viaoatingcontactsSG-0-/SG-1)ofthePSU,thesettemperaturesforheatingand/or
DHW can be raised, or the compressor and electric heating can be blocked or activated respectively. For this, two digital inputs
are connected as follows:
Parameter settings:
WP025 Smart Grid  On
WP026 Ext. raising htg  0-20 °C
WP027 Ext. raising DHW  0-20 °C
WP028 External activation  Off / HP / HP+el htg
Terminals X1 9 and 10 (SG-0) Terminals X1 11 and 12 (SG-1) Function
open open Heat pump standard mode
open closed Start recommendation - temperature raising
closed open External deactivation (see also power-OFF)
closed closed Start command - temperature raising
25.2.2 PV (photovoltaics) temperature raising
Thesettemperaturesforheatingand/orDHWcanberaisedviaanexternalswitchcommand(oatingcontacts).Theminimum
durationoftemperatureraisingis5minutes,sothatuctuationsinPVoutput(contactdropsbriey)donotcausetheheatpump
to switch off.
Terminals X1 - 11 and 12 open  PV raising inactive
Terminals X1 - 11 and 12 bridged  PV raising active
Parameter settings:
WP025 Smart Grid  OFF
WP026 Ext. raising htg  0-20 °C
WP027 Ext. raising DHW  0-20 °C
Note: PV temperature raising is not possible during power-OFF.
25. Power supply to the indoor module
Note: If the power supply is without power-OFF, insert a bridge.