6 Commissioning
Installation and operation manual
9
250AXVEB
Split system air conditioners
3P580564-1 – 2019.04
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
6
Reattach the service cover.
▪
Master unit:
Be sure to connect the wiring when combining with a
simultaneously operating multi-type in group control.
INFORMATION
In case of group control it is not necessary to assign an
address to the indoor unit. The address is automatically set
when the power is activated.
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 and operation
instructions, as described in the
installer and user
reference guide
.
The
indoor unit
is properly mounted.
The
outdoor unit
is properly mounted.
Make sure
drain piping
is properly installed, 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.
6.2
To perform a test run
INFORMATION
For the test run procedure, see the reference guide or the
service manual of the used user interface.
NOTICE
Do not interrupt the test run.
7
Configuration
7.1
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 (—) to 03.
Setting content:
Then
1
M
SW
—
Airflow adjustment is OFF
11(21)
7
01
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.
03
Operation stops after 1 to 8 minutes.
Possible consequence:
Setting is finished
and the operation lamp will be off.
02
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 (—) of mode 11(21)
must be set to 01.
Change the value number (—) in accordance with the external static
pressure of the duct to be connected as in the table below.
(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
• —: Value number
•
: Default
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