Checklist Before Commissioning; To Perform A Test Run; Configuration; Field Setting - Daikin FDA125A5VEB Installation And Operation Manual

NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
15.1

Checklist before commissioning

1 After the installation of the unit, check the items listed below.
2 Close the unit.
3 Power up the unit.
You have read the complete installation and operation
instructions described in the installer and user reference
guide.
The indoor unit is properly mounted.
The outdoor unit is properly mounted.
The drain piping is properly installed and insulated, and
drainage flows smoothly. Check for water leaks.
Possible consequence: condensate water might drip.
The ducting is properly installed and insulated.
The refrigerant pipes (gas and liquid) are installed
correctly and thermally insulated.
There are NO refrigerant leaks.
There are NO missing phases or reversed phases.
The system is properly earthed and the earth terminals
are tightened.
The fuses or locally installed protection devices are
installed according to this document, and have NOT been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
There are NO loose connections or damaged electrical
components in the switch box.
There are NO damaged components or squeezed
pipes on the inside of the indoor and outdoor units.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
15.2

To perform a test run

INFORMATION
▪ Perform the test run according to the instructions in the
connected user interface manual.
▪ The test run is only completed if there is no malfunction
code displayed on the user interface.
▪ See the service manual for the complete list of error
codes and a detailed troubleshooting guideline for each
error.
NOTICE
Do NOT interrupt the test run.
(1)
Field settings are defined as follows:
• M: Mode number – First number: for group of units – Number between brackets: for individual unit
• SW: Setting number / C1: First code number
• —: Value number / C2: Second code number
• : Default
FDA125A5VEB
Split system air conditioners
4P494410-1D – 2022.10
16

Configuration

16.1

Field setting

Make the following field settings so that they correspond with the
actual installation setup and with the needs of the user:
▪ External static pressure setting using:
▪ Airflow automatic adjustment setting
▪ User interface
▪ Time to clean air filter
To set airflow automatic adjustment
▪ When the air conditioning unit is running in fan operation mode:
1 Stop the air conditioning unit.
2 Set value number / second code number to 03.
Setting content:
Airflow adjustment is OFF
Press ON/OFF to return to normal operating
mode.
Possible consequence: The operation lamp
will light up and the unit will start the fan
operation for airflow automatic adjustment.
Operation stops after 1 to 8 minutes.
Possible consequence: Setting is finished
and the operation lamp will be off.
If there is no change after airflow adjustment, perform the setting
again.
INFORMATION
▪ The fan speed of the indoor unit is preset to ensure the
standard external static pressure.
▪ To set a higher or lower external static pressure, reset
the initial setting with the user interface.
User interface
Check the indoor unit setting: the value number / second code
number of mode 11(21) must be set to 01.
Change the value number / second code number according to the
external static pressure of the duct to be connected as in table
below.
16 Configuration
(1)
Then
M C1/ C2/
SW —
11(21) 7 01
03
02
Installation and operation manual
19