UPDATED A5 Panasonic technical handbook F 2025 - Flipbook - Page 114
ECOi Control Wiring Ð Modular Systems Between Outdoor Units (1 Ð 2)
Headed outdoor to follower outdoors
System 2
System 1
HEADER
HEADER
Earth the
Screen at the
outdoor unit
Earth the
Screen at the
outdoor unit
U1 / U2
To indoor
To outdoor
Header outdoor to
Follower outdoors
1-2 Header outdoor to sub outdoors cable size/length
Cable type : 2 Core, screened, twisted, non-polarised.
Cable size : 0.75mm² up to 300m.
114
To outdoor
U1 / U2
To indoor
Header outdoor to
Follower outdoors
To SubOutdoor units
only
Note:
Do not connect sub
outdoor units to the U1-U2
communication line!
The inter outdoor unit
communication wiring is
another separate bus
communication line.
