Daikin RXYQ-TA Series Service Manual page 158

Field Settings for Outdoor Unit
2.6.2 Description Field Settings (mode 2: m2) on Outdoor Unit Main PCB
[2-0]: 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), or by
defining master indoor user interface (see setting [2-83])
1: Master unit decides Cool/Heat operation when outdoor units are connected in multiple system
combination
2: Sub unit for Cool/Heat operation when outdoor units are connected in multiple system combination
[2-1]: 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.
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
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".
[2-2]: Low noise/demand address
Address for low noise/demand operation.
1 or more systems (maximum 10 systems wired by "F1F2 OUT/D") can operate use the LNO (Low Noise
Operation) or/and the DE (Demand Control) by instruction of field supplied input to optional PCB
DTA104A61/62.
To link the system to the corresponding DTA104A61/62, set the address same as the DIP switches
position on the related optional PCB DTA104A61/62.
Ensure that also field setting 2-12-1 is set to enable input from optional PCB DTA104A61/62.
145
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
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
SiUS341615E
Outdoor
unit group
slave No.1
Outdoor
unit group
slave No.3
Field Settings