53 © STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
Electrical connections
Electrical connection plate on the rear of the internal unit
ATTENTION
For connections between internal and external unit, please see C2020 I/O Controller,
paragraph "Electrical components of protection and control".
Electrical connections size 1
Power supply 48 VDC
Connector for free cooling damper
Main power supply
Main power supply
Communication cable
Power supply to the internal unit
Sequencing LAN
User interface
Internal unit with AC fans