Daikin VRV EMERION REYQ-AATJA Service Manual page 260

Field Setting from Outdoor Unit
2.5.3 Details of Setting Mode 2
Mode 2 is used to change the field settings of the system. Consulting the current field setting value
and changing the current field setting value is possible.
In general, normal operation can be resumed without special intervention after changing field
settings.
Some field settings are used for special operation (e.g. 1 time operation, recovery/vacuuming
setting, adding refrigerant setting, etc.). In such a case, it is required to abort the special operation
before normal operation can restart. It will be displayed in below explanations.
[2-0]:
[2-2]:
[2-5]:
[2-6]:
253
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: Sub 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.
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 Operation) by instruction of
field supplied input to optional PCB DTA104A62.
To link the system to the corresponding DTA104A62, set the address same as the
DIP switches position on the related optional PCB DTA104A62.
Ensure that also field setting 2-12-1 is set to enable input from optional PCB
DTA104A62.
Cross wiring check
Default value: 0. Not active.
Set 1: force all connected indoor units to operate the indoor fan on high speed. This
setting can be made to check which units are missing in the communication if the
number of indoor units do not correspond to the system lay out. Ensure that after
cross wiring check was confirmed, to return setting to default 2-5-0. Once setting
2-5-1 is active, it is not automatically returning to default when exit mode 2.
Forced thermostat ON command all connected indoor units
Default value: 0. Not active.
Set 1: force all connected indoor units to operate under test (forced thermostat ON
command to outdoor). Ensure that when the forced thermostat ON needs to be
ended, to return setting to default 2-6-0. Once setting 2-6-1 is active, it is not
automatically returning to default when exit mode 2.
SiUS372201EB
Part 5 Field Settings and Test Operation