Daikin D-BACS, Design Manual

Page: 56 / 376

5.4 Connection of Devices other than VRV 39
Fundamental of DIII-NET
5.4 Connection of Devices other than VRV
• You can connect adapters and other devices (SkyAir adapter, RA adapter, Di/Dio units, etc.), which are not VRV, to
either indoor-outdoor connection or outdoor-outdoor connection.
• You cannot connect a chiller (which accommodates DIII-NET) to the same DIII-NET to which VRV, SkyAir, and RA
are connected.
- If you connect a chiller which accommodates DIII-NET to a centralized controller, divide the DIII-NET for VRV use
and for the chiller.
[Example]
• The maximum number of adapters, except VRV indoor units, to be connected is 64 units including VRV indoor untis.
- One air conditioner connecting adapter (SkyAir adapter, etc.) is counted as one unit.
- One Di unit is counted as 8 units.
- One Dio unit is counted as 4 untis.
- When the output of a Dio unit is set to an instant contact point, one unit is counted as 2 units.
* Regarding Di/Dio units, if you specify the number of units to be connected to each unit, you can reduce the
number of units connected to one unit.
- One Ai unit is counted as one unit.
- When you use a general sensor, one unit is counted as 2 units.
Chiller
Chiller
You cannot connect a chiller
to the same DIII net.
Dio unit
Dio unit
Connect a chiller to
another DIII network.
You can connect Di/Dio units
and Ai unit to the same DIII net
to which a chiller is connected.
SkyAir Indoor unit
Ai unit
Centralized
Controller
SkyAir adapter
Total 17 units
with 5 units
Di unit Ai unit
Dio unit
(Regular contact
point setting)
Dio unit
(Instant contact
point setting)
Ai unit
(Using a general sensor)
Counted as 8 units Counted as 1 unit Counted as 4 units Counted as 2 units Counted as 2 units