![STIEBEL ELTRON 223400 Скачать руководство пользователя страница 17](http://html1.mh-extra.com/html/stiebel-eltron/223400/223400_manual_1376689017.webp)
iNSTaLLaTiON
fitting casing components
18
| WPL E | WPL cool
www.stiebel-eltron.com
Connections X4, X2: Control unit and low voltage
Note
Provide common fuses/MCBs for the control cable of the
appliance and the heat pump manager.
26
0
3
01
0
94
9
1
2
X2
X4
1
Control unit ("Steuerung")
Power supply: L, N, PE
Control inputs:
Heat source 2 (2. WE)
External control, e.g. standalone operation (Ext.St.)
2
Low voltage (LV)
BUS High H
BUS Low L
BUS earth
BUS " + " (not required)
12. Fitting casing components
12.1 Outdoor installation
2
1
3
1
5
4
26
0
3
01
0
92
9
1 Side panel
2 Cover
3 Front panel
4 Type plate
5 Back panel
26
0
3
01
1
738
1
2
3
1 Bevelled edge
2 Control panel
3 Screw
!
Material losses
The cover protects the PCB from water ingress.
f
f
Install the cover with the drip edge above the PCB.
f
f
Secure the cover with two screws.
f
f
Hook the side panels, front panel and back panel into the
hooks on the standard appliance. Secure the casing sections
at the bottom with one screw each.
f
f
Affix the type plate supplied in a highly visible position on
one of the appliance casing panels.