INsTALLATIoN
WPL 19 IK | WPL 24 IK
36
| WPIC
www.stiebel-eltron.com
Mains voltage
X2.2
L' (power supply
utility input)
L* (pumps L)
L'
L* (pumps L)
L' (power supply utility input)
L* (pumps L)
X2.3
L
N
PE
L
N
PE
Heating circuit pump 1
X2.4
L
N
PE
L
N
PE
Heating circuit pump 2
X2.5
L
N
PE
L
N
PE
Heating circuit pump 3
X2.6
L
N
PE
L
N
PE
Buffer charging pump 1
X2.7
L
N
PE
L
N
PE
Buffer charging pump 2
X2.8
L
N
PE
L
N
PE
DHW charging pump
X2.9
L
N
PE
L
N
PE
Source pump / defrost
X2.10
L
N
PE
L
N
PE
Fault output
X2.11
L
N
PE
L
N
PE
DHW circulation pump / HG2 DHW
X2.12
L
N
PE
L
N
PE
HG2 heating
X2.13
L
N
PE
L
N
PE
Cooling
X2.14
Mixer OPEN
N
PE
Mixer CLOSE
5
N
PE
6
Mixer heating circuit 2
( X2.14.1 Mixer OPEN
X2.14.2 Mixer CLOSE )
X2.15
Mixer OPEN
N
PE
Mixer CLOSE
5
N
PE
6
Mixer heating circuit 3
( X2.15.1 Mixer OPEN
X2.15.2 Mixer CLOSE )
Note
For every appliance fault, output X2.10 issues a 230 V
signal.
In the case of temporary faults, the output switches the
signal through for a specific time.
In the case of faults that result in a permanent appliance
shutdown, the output switches through permanently.
9.7 Fitting the thermal insulation
D
00000
51
19
2
f
f
After making the hydraulic and electrical connections, seal
the knock-out between the heat pump and the function mod-
ule with the thermal insulation mat provided.
D
00000
51
19
3
f
f
Affix the thermal insulation section over the pump head as
shown in the diagram.
9.8 Closing the function module
D
00000
51
13
0
