Technical data
18
• Control systems
• Centralised control systems • wiring details
Survey of various control systems
For more eective localized environmental control Daikin oers various control systems such as single or double remote control or
centralized control. This enables the construction of a variety of operational control systems which can be adapted for various uses from
remote control to building automation (BA).
Control Method Objective / use System outline Function Standard number of units
DST301B51
Schedule timer
To carry out weekly schedule
operation by 1-minute units
Max. length of transmission wiring for centralised control: 1 km
Schedule timer
(Power supply for
schedule timer)
Up to 128 indoor
units can be controlled
• ON/OFF time can be set by units of day,
hour and minute; ON/OFF pattern can
be set by time zone of twice per day
in accordance with application.
Simultaneously controls 64 groups
with one schedule timer.
Max. 128 units
Centralised remote
control DCS302B51
To control all indoor
units from one place
Max. length of transmission wiring for centralised control: 1km
Single phase,
220~240V
power supply
Centralised remote
control
Up to 64 units by
individual control
Remote control Remote control
Up to 64 groups (128 units) can be
controlled by group control.
• Double central control function
• Function of liquid crystal remote
control can be controlled individually
for each zone of the indoor unit.
• Individual/ unified operation
• Up to 8 patterns can be set for operation
controlled by programmed time when used
in combination with schedule timer.
• Temperature setting for each zone
• Control operation for each room
during centralized control
• Remote control operation rejected command
• Sequential start function
Controls up to 64 groups with one
centralised remote control.
Max. 128 units
Unified ON/OFF
control DCS301B51
Max. length of transmission wiring for centralised control: 1 km
Single phase
220~240 V
power supply
Unified ON/OFF
control
Up to 16 units by
individual control
Remote control Remote control
Up to 16 groups (128 units) can
be controlled by group control.
• Double central control function
• Indoor unit ON/OFF control
• Individual/unified operation
• Remote control operation rejected
command. (Centralised remote control
given priority when used in combination
with centralised remote control.)
• Sequential start function
Controls up to 16 groups of indoor units
with one unified ON/OFF control.
Max. 128 units
Schedule timer
Centralised
remote control
Unified ON/
OFF control
Schedule
timer
Centralised remote
control
Combination of up to 8 unified
ON/OFF controls possible
Up to 128 units by
individual control
Remote control
Remote control
Up to 64 groups (128 units)
can be controlled by
group control.
Single phase, 220~240V power supply
• Respective functions of schedule timer,
centralised remote control and unified
ON/OFF control are possible.
• (Control mode of centralised remote
control is given priority for operation
of remote control for indoor unit.)
• Sequential start function.
Controls up to 64 groups of indoor units
with 1 schedule, timer, 2 centralised remote
controls and 8 unified ON/OFF controls.