Vaillant aroTHERM plus Quick Manual page 25

Heat pump interface (VWZ AI)
For more bespoke systems where the hydraulic module and the uniTOWER are unsuitable, the heat pump interface must be fitted
with all the hydraulic components installed separately.
A
230 V~ 230 V~ MA1 MA2 UV1
PE N L PE N L PE N L PE N L PE N Auf Zu
1. Fixing points
Installer's Quick Guide - aroTHERM plus 11/2020
ZH Bus VF1 SP1 DCF/AF ME EVU
PE N 1 2 + - 2 1 2 1 AF DCF 2 1
2 1
3
B
1. LED
2. Diagnostic socket
(future use)
3. Identification plate
Heat
1
pump
Back to main menu
System
control VWZ AI
eBUS
cable
230 V~
(on site)
1
2
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