Length of transmission wiring
System example (2)
• Branch line; line that is diverged from the main line.
• Sub-branch line: line that is diverged from the branch line.
Notes
As shown above, if the centralised remote controls are connected to the control wiring between indoor unit and outdoor unit, it may not
be able to control the units even on the normal circuit, if the circuit connected to the central controller is out of order. Be sure to connect
the central controllers to the control wiring between the outdoor units.
37
• Control systems
• Centralised control systems • wiring details
®
®
• When the centralised remote controls are connected to the control wiring between the outdoor unit and indoor unit.
Line: Main line
Line: Branch line
Line: Sub-branch line
How to count the branch wiring?
No sub-branch line
The control wiring between outdoor units
and the control wiring between indoor unit
and outdoor unit shall be considered as
main line. (We count this as no.1 branch),
and we count the branch line to no. 2 - 12
which is diverged from the main line.
The terminal for Out/Out
and the terminal In/Out
are considered as the
same line.
You cannot diverge the wiring
from the branch line. Be sure to
connect the unit by series wiring.
(Never diverge the wiring from
the branch line, which may cause
malfunction of the transmission.)
: Branch no.
4
- 7
excluded
from
this
diagram
Sky Air
Sky Air
Centralised remote control
Unified On/Off control
Summary of Contents for brp069a42
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