Commissioning; Checklist Before Commissioning; To Perform A Test Run - Daikin FXFQ20BVEB Installation And Operation Manual

6 Commissioning

6 Commissioning
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
6.1

Checklist before commissioning

After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
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.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
6.2

To perform a test run

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.
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.
1 Perform introductory steps.
Installation and operation manual
10
# 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.
2 Start the test run
# Action
1 Go to the home menu.
2 Press at least 4 seconds.
3 Select Test Operation.
4 Press.
5 Press within 10 seconds.
3 Check operation for 3 minutes.
4 Check operation of the airflow direction.
# Action
1 Press.
2 Select Position 0.
3 Change the position.
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.
Result
Air Volume/direction
Air Volume Direction
Low Position 0
Return Return Setting Setting
Air Volume/direction
Air Volume Direction
Low Position 0
Return Return Setting Setting
If the airflow flap of the
indoor unit moves,
operation is OK.
If not, operation is not OK.
FXFQ20~125BVEB
VRV system air conditioner
4P540926-1B – 2019.01