Daikin brp069a42, Technical Data Manual

Page: 37 / 161

Length of transmission wiring
System example (1)
• 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, the centralised remote controls schould be connected to the wiring between the outdoor units, wherever possible. (If
connected to the control wiring between indoor unit and the outdoor unit, it may not be able to control the units even on the normal
circuit if the circuit connected to the central control is out of order.)
36 • Control systems
• Centralised control systems • wiring details
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• When the centralised remote control is connected to the control wiring between the outdoor units.
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 should 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.)
The terminal for Out/Out and the
terminal In/Out are considered as
the same line.
: Branch no.
4
- 7
excluded
from
this
diagram
Unified On/Off control Centralised remote control
Sky Air
Sky Air