Daikin D-BACS, Design Manual

Page: 174 / 376

3.1 Function 157
Control Devices
3. <DST301BA61> Schedule Timer
3.1 Function
Enables you to connect and control weekly schedule for up to 128 indoor units all together.
3.2 System Configuration
With a schedule timer, you can set on/off time twice a day by units of 1 week for up to 128 indoor units.
„
System Configuration
If using the schedule timer alone, you don’t have to set the centralized control group No. for group control.
„
Transmission Wiring
<Indoor Unit Wiring>
1. If using the schedule timer alone:
„
For the schedule timer’s power supply, connect the schedule timer (D1, D2) with the connector (X18A) on the indoor
unit PC board by crimped style terminal with the attached electric wire.
2. If using in combination with other optional controllers for centralized control:
Transmission wiring for control: 0.75
~
1.25 mm
2
sheathed vinyl cord or cable (2 wire) ..... Max. 1,000 m
(Total Max. 2,000 m)
<Transmission Wiring Connection Example>
1 series wiring, 2 bus wiring, and 3 star wiring are the same as with the central remote controller.
„
Simultaneous control of up to 128 indoor units is managed by
a week schedule.
„
The start and stop time for twice a day can be set for the
week in increments of 1 minute.
„
By combining with a central remote controller and schedule
timer, you can construct a system that matches the size and
use of the building.
„
If used together with a central remote controller, you can set
up to 8 schedule patterns which can be distributed among
zones as desired using the central remote controller.
„
Is equipped with a compensation function for power failure up
to 48 hours.
„
Features thin design of a mere 16 mm in thickness. (Uses JIS
recessed box for 2.)
„
Can be used in combination with other D-BACS equipment.