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2.4.3
Unscrew the bracket supporting the small circuit board with
Preparation of
display LED's and reinstall it on the bottom opposite, where
unit
you will find two holes on the base (see fig. 18-19).
Make sure the connection plate is securely fastened on the
inside of the air conditioner, and apply some insulating tape if
necessary. Remove the styrofoam enclosure on the lower
right-hand side under the air recycle fan and fit it against the
opening above the fan (see fig. 20-21).
Remove the air outlet grating by removing the fastening screws.
Remove the control panel (see fig. 22).
When performing this operation place the casing on a
secure surface so as not to scratch or dent it. Remove the
plastic plate with the logo and transparent screen for display of
the LED's from the control panel by pressing on the hooks at
the rear. Turn it over (rotate by 180°) and reinstall it on the
panel.
Reassemble the parts in the opposite position from the
original installation, reversing the air outlet grating with the
control panel grating.
Turn the casing over so that the air outlet grating is on the
lower right-hand side of the device. Connect the plug on
the step-step motor of the grating. Fit the casing back on the
air conditioner carefully, taking care to hold the wires for the step-
step motor to one side so that they do not interfere with the inner
part of the air outlet grating.
Check that all the coupling references of the casing with the
rear frame are fully inserted so that the casing is fitted
smoothly and evenly all around. Fasten the casing with its
eight screws and replace the strips in their slots.
After completing installation, the electronic parts of the air
conditioner have to be configured so as to take into account
the stratification of heat in the room. This procedure is outlined
in paragraph 2.5 (Operating tests and diagnosis of
possible malfunctions).
CHAP. 2.5
WORKING TESTS AND IDENTIFICATION
OF POSSIBLE MALFUNCTIONS
The program introduced in the microprocessor of this
device makes it possible to run a brief self-test to ensure that
the machine functions normally by starting each of its
internal components.
To run the self-test, proceed as follows:
- Power the air conditioner and make sure it is on stand-by. – U
Use a sharp object to press the micro-key located under
the hole on the left of the control panel for at least 10
sec.
- At the beginning and end of the self-test procedure the status
of configuration of the machine will be displayed for a few
seconds as follows:
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Troubleshooting
