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4.6
Finishing the outdoor unit
installation
4.6.1
To finish the outdoor unit installation
1 Insulate and fix the refrigerant piping and interconnection cable
as follows:
c
a
d
b
e
f
a
Gas pipe
b
Gas pipe insulation
c
Interconnection cable
d
Liquid pipe
e
Liquid pipe insulation
f
Finishing tape
2 Install the service cover.
4.6.2
To check the insulation resistance of the
compressor
NOTICE
If, after installation, refrigerant accumulates in the
compressor, the insulation resistance over the poles can
drop, but if it is at least 1 MΩ, then the unit will not break
down.
▪ Use a 500 V mega-tester when measuring insulation.
▪ Do not use a mega-tester for low-voltage circuits.
1 Measure the insulation resistance over the poles.
If
≥1 MΩ
Insulation resistance is OK. This procedure
is finished.
<1 MΩ
Insulation resistance is not OK. Go to the
next step.
2 Turn ON the power and leave it on for 6 hours.
Result: The compressor will heat up and evaporate any
refrigerant in the compressor.
3 Measure the insulation resistance again.
5
Commissioning
Please provide the eco design data according to (EU)2016/2281 to
the customer. This data can be found in the installer reference guide
or via the Daikin website.
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
5.1
Checklist before commissioning
After the installation of the unit, first check the items listed below.
Once all checks are fulfilled, the unit must be closed. Power-up the
unit after it is closed.
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.
5.2
Then
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.
2 Start the test run
30
The outdoor unit is properly mounted.
The following field wiring has been carried out according
to this document and the applicable legislation:
▪ Between the local supply panel and the outdoor unit
▪ Between the outdoor unit and the indoor unit (master)
▪ Between the indoor units
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.
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 and gas stop valve by
removing the cap and turning counterclockwise with a
hex wrench until it stops.
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.
Result
Cool
Set to
28
°C
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