Preparation Of Unit; Working Tests And Identification Of Possible Malfunction - mundoclima MU-UNIC Serie Manual De Instalación. Instrucciones Para El Uso

2.4.3
Unscrew the bracket supporting the small circuit board with
Preparation of
display leds 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 leds 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 proce-
dure 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.
- Use a sharp object to press the microkey 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:
36
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Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
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