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12.2.9 How to Replace Network Adapter
Remove the front grille (refer how to take out front grille) from the unit.
Remove the network adapter box by releasing the hook (Figure 1.0).
Remove the cover by unclipping it and pulling it out (Figure 1.1).
Remove the top casing by pressing the side of the network adapter box. (Figure 1.2)
After that, network adapter can be easily replaced (Figure 1.3).
Hook
Unclip & pull down
Press
Press
Figure 1.0
Figure 1.1
Figure 1.2
Figure 1.3
12.2.10 Check the Drainage
Open front panel and remove air filters.
(Drainage checking can be carried out without
removing the front grille.)
Pour a glass of water into the drain tray-styrofoam.
Ensure that water flows out from drain hose of the
indoor unit.
Drain tray-styrofoam
12.2.11 Evaluation of the Performance
Operate the unit at cooling/heating operation
mode for fifteen minutes or more.
Measure the temperature of the intake and
discharge air.
Ensure the difference between the intake
temperature and the discharge is more than 8°C
during Cooling operation or more than 14°C
during Heating operation.
Discharge air