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Starting up the system
3.3.2 Operating test instructions
For the operating test with low indoor air temperatures,
the Manual Forced Cooling function can be used. Refer
to the Indoor unit manual to activate the function.
The operating test shall be carried out for at least
30 minutes.
1 Connect the unit to the power mains.
2 Press the ON/OFF button on the remote control to
turn it on.
3 Press the MODE button to scroll through the following
functions, one at a time:
– COOL - Select the lowest possible temperature
– HEAT - Select the highest possible temperature
4 Leave each function active for 5 minutes and perform
the following checks:
List of checks to be performed YES/NO
Absence of electrical leakage
The power supply voltage
corresponds to the voltage specified
on the unit identification label
The unit is properly earthed and the
earthing terminals are tightened
All electrical terminals are correctly
connected and insulated
Indoor and outdoor units are installed
correctly
Absence of damaged components or
crushed pipes inside the indoor and
outdoor unit
All junction points are leak-free Outside Inside
No refrigerant leaks.
Water drains correctly from the
drainage pipe
All pipes are properly insulated
The stop valves (for gas and liquid)
on the outdoor unit are fully open.
The unit operates correctly in cooling
mode
The unit works properly in heating
mode
The ventilation slots of the indoor unit
rotate correctly
Indoor unit responds to the remote
control
For the indoor unit
Check that the remote control and its buttons work
properly.
Check that the ventilation fins move correctly and can be
adjusted with the remote control.
Check that the room temperature is recorded correctly.
Check that the indicators on the remote control and the
indoor unit’s display work properly.
Check that the indoor unit’s manual buttons work properly.
Check that the drain system is not blocked and the water
flows freely.
Check that there are no vibrations or abnormal noises
during operation.
For the outdoor unit
Check that there are no leaks in the refrigeration system.
Make sure that there are no vibrations or abnormal noises
during operation.
Check that the air current, the noise and the water
generated by the unit don’t disturb the neighbours and
don’t create dangerous situations.
Drain test
Check that the drain pipe allows the water to drain
correctly. In new builds, this test should be carried out
before finishing the ceiling.
Remove the test cap. Pour 2,000 ml of water into the tank
through the connected pipe.
Turn the air conditioner on and start it in COOL mode.
Check that the drain pump does not make any abnormal
noises.
Check that the water drains out. Depending on the pipe,
it could take a minute before the water starts to drain.
Check that the drain system is not blocked and the water
flows freely.
Shut down the air conditioner. Turn the main power switch
off and refit the test cap.
CHECK THE PIPE JOINTS AGAIN
During operation, the pressure in the refrigerant circuit
increases, and this can lead to leaks that were not detected
during the initial check. During the operating test, carefully
check that none of the refrigerant pipe fittings have a leak.
For instructions, refer to section “3.2.2 Checking for gas
leaks”.
5 At the end of the operating test, if all the checks listed
are positive, proceed as follows:
– Using the remote control, return the unit to normal
operating temperature.
– Using insulating tape, wrap the connection points
of the refrigerant pipes that are inside and that
were left exposed during the installation of the
indoor unit.
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