Psu / Pv / Smart Grid / Odu Bus Connection - Wolf BWL-1S-05 Installation And Operating Instructions Manual

22.3 PSU / PV / Smart Grid / ODU bus connection
(See also "Additional functions" chapter.)
SG0
Smart*
Grid
SG1
Power-
OFF
PV*
increase
ODU BWL-1S(B)
bus 05/07/10/14/16
* Floating contacts
Notes:
− For systems that can be temporarily blocked/shut down by the power supply utility (power-OFF), a
corresponding switching signal (floating contact) of the energy supply utility must be connected to
terminal X1-9/10 in order to signal the power-OFF period to the control unit of the BWL-1S(B).
− If the power-OFF function is not used, insert a jumper at terminal X1-9/10.
− The electrical connection of the Smart Grid and power-OFF function must be made in accordance with the
stipulations of the local power supply utility.
Example 1: Power supply with power-OFF, without on-site load disconnection
Control 230 V/50 Hz
Electric heater 230 V/400 V/50 Hz
Ripple control receiver
(floating contact)
Outdoor module 230 V/400 V/50 Hz
42
Indoor module electrical connection
X1
9
10
11
12
9
10
11
Power-OFF,
12
PV / Smart Grid
ODU X1
C2 13
C1 14
ODU bus
(2x0.75 mm
Indoor module
3
3/5
X1-9/10
(power-OFF)
3/5
Electric heater
feed
Output 3way DV
heating/DHW
GTS (appliance type connector)
, screened)
2
(IDU)
ODU bus
2
On-site
connections
X1
230 V~
Outdoor module
(ODU)
BWL-1S(B)-05/07/10/14/16
230 V/400 V
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