Daikin DCM601A51, Technical Data Manual

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106 1.10 DIII-NET Expander Adaptor <DTA109A51>
Adaptor ED721208
1.10.4 Electric Wiring Work
C : 1P013360
Note:
Total length : 2000m
Max. length : 1000m
Max. number of branches : 16
• At least one outdoor unit and one centralized control equipment are required.
• Up to 8 adaptors can be connected in one system.
• Do not locate adaptors downstream of other adaptors.
• If not used with a centralized control equipment, the expander adaptor cannot be used with the wiring adaptor for
electrical appendices (KRP2A) or the schedule timer (DST301BA61).
• The external control adaptor for outdoor units controls group cooling and demand for each adaptor.
(Anything beyond the expansion control falls outside the control domain.)
• Do not turn the system ON/OFF rapidly from the centralized control equipment. This can cause
temporary erroneous displays.
• Sequential starts is controlled by each expander adaptor.
(Transmission wiring specifications)
• 0.75 ~ 1.25mm
2
sheathed wire (2 wire).
(Transmission wiring length)
• Observe the following limits on transmission wires.The limits apply to each adaptor.If you exceed the limits,
it may cause malfunction.
(1) Connect the wire from the adaptor to the adaptor power connector on the outdoor unit's PCB.
(For connector Nos.,see the electric wiring diagrams for the indoor and function units.)
(2) Connect transmission wires between outdoor units (Outdoor-Outdoor terminal board).
(3) Wire transmission wires to terminal boards as shown below.
~
F2
F1
F1 F2
Non-polarity
Central remote controller
Outdoor-Outdoor
~
Outdoor unit
PCB
adaptor