Ferroli MD-CCM09 Manual De Instalación Y Del Usuario página 40

5.2 Connecting diagram of network-based air conditioning system
(There are two types of indoor units, namely indoor unit with external network interface module on the main control board or built-in
network interface module in the main control board.)
Matching resistance of
communication end is 120Ω
POWER AC220V
Centralized controller
Owner's & Installation manual
6
Matching resistance of
communication end is 120Ω
Junction Box
Indoor unit (MAX)
connected to 64 indoor units as a maximum
Cod. 3QE46680 - Rev. 00 - 01/2021
The shielded wire must
be reliable grounded
Junction Box
Indoor unit (32)
One centralized controller can be
Junction Box
Indoor unit (0)
Junction Box
Indoor unit (10)
Junction Box
Indoor unit (1)
Fig.5-8
EN