Daikin VRV EMERION RXYQ-AATJA Service Manual page 210

Field Setting from Outdoor Unit
[2-39]:
[2-42]:
[2-49]:
[2-51]:
[2-62]:
Adjust cooling and heating system operation to achieve stable capacity.
Note(s)
This setting may result in a longer reaction time to large load variations.
203
Emergency operation "Sub"
To disable compressor operation of "Sub" unit of a multi outdoor system permanently:
Default value: 0. Compressor operation enabled.
Field setting:
 Set 1: Sub INV. 1 is disabled permanently.
 Set 2: Sub INV. 2 is disabled permanently
 Set 3: Sub module is disabled permanently.
Outdoor fan noise countermeasure
Change fans rotational speed and reduce noise by the interference of air blow noise
between outdoor units.
Default value: 0
Field setting:
 Mode A: 1
 Mode B: 2
Height difference setting
Default value: 0.
In case the outdoor unit is installed in the highest position (indoor units are installed
on a lower position than outdoor units) and the height difference between the lowest
indoor unit and the outdoor unit exceeds 50 m (164 ft), the setting [2-49] has to be
changed to 1.
Master/Sub setting Multi
When 2 modules are installed as a multi-outdoor (by common refrigerant piping and
wiring by terminals Q1Q2) configuration is automatically detected. In certain cases, the
sequence of the Sub unit need to be set manually (in case of AIRNET monitoring).
Default value: 0. Automatic detection.
Field setting: ensure that the modules in a multi are set different status. Even some
modules in a multi are set manually to same status, U7 error will appear.
 1: forced "Master" (F1F2/Ind terminals should be connected to indoor units).
 2: forced "Sub" (only Q1Q2 terminals should be wired to "Master" module).
Cooling and heating capacity learning control
Default value: 0.
Value
[2-62]
0 (default)
1
2
3
Description
OFF
Cooling adjustment
Heating adjustment
Cooling and heating adjustment
SiUS342303E
Part 5 Field Settings and Test Operation