Electric Heater Connection; Psu / Pv / Smart Grid / Bus Cable Connection - Wolf BWL-1 S Installation And Operating Instructions Manual

25.1 Electric heater connection

5
*
6/9 kW 4/6 kW
On the BWL-1S with integral 3-phase electric heating, the heater connection can be either single-phase, 2-phase or 3-phase
. Depending on demand, the control unit activates the electric heating via a contactor.
6 kW heating element connection:
L1, N, PE =
L1, L2, N, PE =
L1, L2, L3, N, PE =
Note: Depending on the connected heating output of the electric heating, parameter WP094
(electric heating type) must be adjusted (factory setting WP094 = 6 kW).

25.2 PSU / PV / Smart grid / BUS cable connection

Smart Power-
grid OFF*
PV* raising
AWO BWL-1S(B)
BUS 10/14
BWL-1S(B)
07
*floating
38
25. Power supply to the indoor module
N1
L1
L2
L3
PE
5 3
*
*
* See "Specification" for fuse protection values
2/3 kW
2 kW
4 kW
6 kW
GND 9
SG-0 10
GND 11
SG-1 12
C2 13
C1 14
C (COM) 15
Ni 16
Output 3WUV
heating / DHW
PSU, PV /
Smart grid
AWO BUS
9 kW heating element connection (optional):
L1, N, PE
L1, L2, N, PE
L1, L2, L3, N, PE
Electric heater
feed
Output 3WUV
heating / DHW
PSU, PV /
Smart grid
AWO-BUS
(3x1.5 mm
2
screened,
recommended)
X1
GTS (appliance type
connector)
= 3 kW
= 6 kW
= 9 kW
X1
3064298_201507