Daikin VRV RXYQ72-384XAYCA, Service Manual

Page: 178 / 419

Field Settings for Outdoor Unit SiUS342004EB
171 Part 5 Field Settings and Test Operation
2.3 Operating the BS Buttons and DIP Switches on the PCB
Operating the BS
buttons
By operating the BS buttons it is possible to:

Perform special actions (test operation, etc.).

Perform field settings (demand operation, low noise, etc.).
Below procedure explains how to operate the BS buttons to reach the required mode in the menu,
select the correct setting and modify the value of the setting. This procedure can be used any time
special settings and regular field setting are discussed in this manual.
Setting definition: [A-B]  C
A: mode
B: setting
C: setting value
A, B and C are numerical values for field settings. Parameter C has to be defined. It can be a
chosen from a set (0, 1, 2, 3, 4, 5,…) or regarded as an ON/OFF (1 or 0) depending on the
contents. This is informed when the field setting is explained.
Initialization:
Default Situation
Turn ON the power supply of the outdoor unit and all indoor units.
When the communication between indoor units and outdoor unit(s) is established and normal, the
segment indication state will be as below (default situation when shipped from factory).
When turning ON the power supply, the display blinks ON and OFF. First checks of the power
supply are executed (1 - 2 minutes).
When no trouble occurs: lighted as indicated (8~10 minutes).
Ready for operation: blank display indication as indicated.
When above situation cannot be confirmed after 12 minutes, the error code can be checked on the
indoor unit user interface and the outdoor unit segment display. Solve the error code accordingly.
The communication wiring should be checked at first.
INFORMATION During special operation (e.g., test operation, etc.) or when an error
happened, information will contain letters and numerical values.
INFORMATION Be sure to turn the power on at least 6 hours before operation in
order to have power running to the crankcase heater.