Adjusting Air Flow Direction; Maintenance - Midea MI2-28Q4DHN1 Installation And Operation Manual

Four-way cassette the 2nd generation dc vrf indoor unit
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12. Adjusting Air Flow Direction

Since warmer air rises and cooler air falls, the distribution of
warmed/cooled air around a room can be improved by positioning the
unit's louvers. The louver angle can be adjusted by pressing the
[SWING] button on the remote controller.
Caution
During heating operation, horizontal airflow will aggravate the
uneven distribution of room temperature.
The louver direction: horizontal airflow is recommended
during cooling operation. Note the downward air flow will
cause condensation on the air outlet and louver surface.
Adjust the air direction up and down
a. Auto-swing: Press SWING for the louver to swing up and
down.
b. Manual swing: Adjust the louver to improve the cooling or
heating effect.
c. When cooling adjust the louver horizontally.
d. When heating adjust the louver downward.

13. Maintenance

Caution
Please release pressure before disassembly.
Before you clean the air conditioner, ensure it is powered off.
Check that the wiring is undamaged and connected.
Use a dry cloth to wipe the indoor unit and remote controller.
A wet cloth may be used to clean the indoor unit if it is very
dirty.
Never use a damp cloth on the remote controller.
Do not use a chemically treated duster on the unit or leave this
type of material on the unit to avoid damaging the finish.
Do not use benzene, thinner, polishing powder, or similar
solvents for cleaning. These may cause the plastic surface to
crack or warp.
Figure 11.4
Figure 12.1
Figure 12.2
Method for cleaning the air filter
a. The air filter can prevent the dust or other particles from
entering the unit. If the filter is blocked, the unit will not work
well. Clean the filter every two weeks when you use it regularly.
b. If the air conditioner is positioned in a dusty place, clean the
filter often.
c. Replace the filter if it is too dusty to clean (the replaceable air
filter is an optional fitting).
1. Take out the air intake grille
Push the grille switches simultaneously, as indicated in Fig.13.1.
Then pull down the air intake grille (together with the air filter, as
shown in Fig.13.2). Pull the air intake grille down to 45°, and lift it
up to remove the grille.
Caution
The control box cables originally connected to the electrical
terminals on the main body must be removed, as indicated
above.
2. Dismantle the air filter.
3. Clean the air filter
Dusts will accumulate on the filter along with the unit operation,
and need to be removed from the filter,or the unit would not
function effectively.
Clean the filter every two weeks when you use the unit regularly.
Clean the air filter with a vacuum cleaner or water.
a. The air intake side should face up when using a vacuum
cleaner. (Refer to Fig.13.3)
b. The air intake side should face down when using clean water.
(Refer to Fig.13.4)
For excessive dusts, use a soft brush and natural detergent to
clean it and dry in a cool place.
17
Figure 13.1
Figure 13.2

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