Daikin D-BACS, Design Manual

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76 4.1 Group Control
Remote Controllers
4. Various Control by Remote Controller Control
4.1 Group Control
Simultaneous control of up to 16 units with a single remote controller
This is a convenient system for when you want to simultaneously control several indoor units with the same settings for
air conditioning a wide, single floor.
„
Wiring for remote controller group control has no polarity, P
1
and P
2
can be switched.
„
All indoor units within the group have the same setting, and each indoor unit is controlled individually by its own built-
in thermostat.
„
Because automatic address is used, address does not have to be set by remote controller for group control.
Note:
„
Only remote controller wiring is shown.
„
For Connection unit series
Although group control in Connection unit series is possible, however, group control with other series is impossible.
4.2 Forced OFF or ON/OFF Control
Enables forced OFF or ON/OFF control of indoor unit by input from outside.
Indoor units can be started or stopped by building control or key control system.
Notes
· FXUQ-M(A) : Not available
1. Wiring method and specifications
„
Remote control can be carried out by connecting input from outside to terminals T
1
and T
2
of the terminal block (for
remote controller transmission wiring).
2. Contents of operation
„
Operation is as given in the table on the right for input A of forced OFF and ON/OFF control.
3. How to select forced OFF and ON/OFF control
„
Select input by remote controller after turning on the power supply.
„
Set to the field set mode by remote controller.
„
After entering the field set mode, select mode No. 12, set the first code No. to “1,” and set the second code No. to “01”
for forced OFF, or to “02” for ON/OFF control.
(Factory setting is set to forced OFF.)
Wiring specifications Sheathed vinyl cord or cable (2 wire)
Wiring thickness 0.75~1.25 mm²
Wiring length Max. 100 m
Outside contact specifications Contact that guarantees minimum applicable capacity of 15 VDC, 10mA
For forced OFF For ON/OFF control
Forced OFF (remote controller rejection) by input A “ON” Operate by switching input A from “OFF” to “ON”
Remote controller acceptance by input A “OFF” Operate by switching input A from “ON” to “OFF”