Installation and operating instruction
Hydraulic unit WWP LS 8 ... 16-B
5 Installation
83306902 2/2017-05 La
29-88
5.5.1 Wiring diagram
Observe the instructions for the electrical installation [ch. 5.5].
WWP-CPU device electronic
µC - Unit
WWP-CPU
B1
B1
1 M
B2
B2
1 M
B3
B3
1 M
230V
L N
230 V/50 Hz
L N PE
max 16A
T4H
250V
S1
RJ11
A B
EM
T2B
4
WWP-EM-...
+
H-COM
– A B
H2
H1
L H1H2
SGR1/2
L* A1 A2
2.WEZ/FH
N
L N
L N
VA
230 V
L N PE
AC
DC
D
D
D
A
BUS
WWP-CPU device electronic
Plug
Colour
Connection
Description
230V
↑
black
Voltage supply 230 V AC / 50 Hz
–
VA
grey
Variable output 230 V AC
max 2 A
SGR1/2
turquoise
Input SG Ready H1 and H2 (EVU block) [ch. 11.2]
–
2. WEZ /
FH
purple
Potential free relay output 2nd heat exchanger (A1) /
flange heating (A2)
–
B1
green
External sensor (accessory)
NTC 2 kΩ
B2
white
De-couple sensor
NTC 5 kΩ
B3
yellow
DHW sensor
NTC 5 kΩ
EM RJ11
–
WWP extension module
Bus line RJ11 4 wire, shielded
(accessory)
T2B
dark grey
Reserve (not used)
–
H-COM
pink
Connection to outdoor unit (communication line)
2 x 0.75 mm², shielded, twisted
in pairs