Checklist Before Commissioning; To Perform A Test Run - Daikin FFA25A2VEB Installation And Operation Manual

7 Commissioning
NOTICE
Before starting up the system, the unit MUST be energised
for at least 6 hours. The crankcase heater needs to heat
up the compressor oil to avoid oil shortage and
compressor breakdown during startup.
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
NOTICE
Do NOT operate the unit until the refrigerant piping is
complete (when operated this way, the compressor will
break).
NOTICE
Cooling operation mode. Perform the test run in cooling
operation mode so that stop valves failing to open can be
detected. Even if the user interface was set to heating
operation mode, the unit will run in cooling operation mode
during 2‑3 minutes (although the user interface will display
the heating icon), and then automatically switch to heating
operation mode.
NOTICE
If you cannot operate the unit in test run, see
codes when performing a test run" on
WARNING
If the panels on the indoor units are not installed yet, make
sure to power OFF the system after finishing the test run.
To do so, turn OFF operation via the user interface. Do
NOT stop operation by turning OFF the circuit breakers.
7.3

Checklist before commissioning

Do NOT operate the system before the following checks are OK:
You read the complete installation instructions, as
described in the installer reference guide.
The indoor units are properly mounted.
In case a wireless user interface is used: The indoor unit
decoration panel with infrared receiver is installed.
The outdoor unit is properly mounted.
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.
The insulation resistance of the compressor is OK.
There are NO damaged components or squeezed
pipes on the inside of the indoor and outdoor units.
There are NO refrigerant leaks.
The correct pipe size is installed and the pipes are
properly insulated.
Installation and operation manual
12
7.4
This task is only applicable when using the BRC1E52 or BRC1E53
user interface. When using any other user interface, see the
installation manual or service manual of the user interface.
1 Perform introductory steps.
"7.5 Error
page 13.
2 Start the test run
The stop valves (gas and liquid) on the outdoor unit are
fully open.

To perform a test run

NOTICE
Do not interrupt the test run.
INFORMATION
Backlight. To perform an ON/OFF action on the user
interface, the backlight does not need to be lit. For any
other action, it needs to be lit first. The backlight is lit for
±30 seconds when you press a button.
# Action
1 Open the liquid stop valve (A) and gas stop valve (B)
by removing the stem cap and turning
counterclockwise with a hex wrench until it stops.
A B
2 Close the service cover to prevent electric shocks.
3 Turn ON power for at least 6 hours before starting
operation to protect the compressor.
4 On the user interface, set the unit to cooling operation
mode.
# Action
1 Go to the home menu.
2 Press at least 4 seconds.
3 Select Test Operation.
4 Press.
5 Press within 10 seconds.
Result
Cool
Set to
28
°C
The Service Settings menu
is displayed.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Return Setting
Test Operation is
displayed on the home
menu.
Cool
Test Operation
Return Setting
Test run starts.
FFA25~60A2VEB
Split system air conditioners
4P456960-1 – 2017.03