Daikin VRV Aurora RXLQ-TATJU Series Service Manual page 188

Field Setting from Outdoor Unit
[2-0]:
[2-1]:
DS2, DS1
External
Outdoor
control adaptor
unit group
for outdoor unit
master No.0
No.0
DS2, DS1
External
Outdoor
control adaptor
unit group
for outdoor unit
master No.2
No.2
181
Cool/Heat selection setting
Cool/Heat selection setting is used in case the optional Cool/Heat selector
(KRC19-26A) is used. Depending on the outdoor unit setup (single outdoor unit setup or
multi outdoor unit setup), the correct setting should be chosen. More details on how to
use the Cool/Heat selector option can be found in the manual of the Cool/Heat selector.
Default value: 0.
 0: Each individual outdoor unit can select Cool/Heat operation (by Cool/Heat selector
if installed).
 1: Master unit decides Cool/Heat operation when outdoor units are connected in
multiple system combination
 2: Slave unit for Cool/Heat operation when outdoor units are connected in multiple
system combination
Change [2-0] to 0, 1 or 2 in function of required functionality.
Cool/Heat unified address
Address for cool/heat unified operation.
 When multiple heat pump systems need to change over together between cooling
and heating (example multiple systems serve indoor units in landscape area). Per zone
the optional PCB DTA104A61/62 needs to be installed. Recommended location is in
one of the VRV indoor units belonging to the system that will be set as "Master cool/heat
unit" (field setting 2-0-1).
 The address set to the multiple systems need to operate as a zone, should be same
as the address set by the DIP switches on the related optional PCB DTA104A61/62.
C/H group address
Outdoor Outdoor
unit group unit group
slave No.0 slave No.0
C/H group address
Outdoor
Outdoor
unit group
unit group
slave No.2 slave No.2
Default value: 0
 Field setting: 1-31.
 The source for cool/heat selection can be:
• Indoor unit: when outdoor unit DIP switch DS1-1 is at the OFF position.
• Cool/heat switch: set DIP switch DS1-1 on outdoor unit PCB to ON. Operation mode
according to connections A-B-C to optional PCB BRP2A81.
DS2, DS1
C/H group address
External
Outdoor
control adaptor
unit group
for outdoor unit
master No.1
No.1
DS2, DS1
C/H group address
External
Outdoor
control adaptor
unit group
for outdoor unit
master No.3
No.3
Part 5 Field Settings and Test Operation
SiUS341802EC
Outdoor
unit group
slave No.1
Outdoor
unit group
slave No.3