Panasonic CS-Z25TKEA Service Manual page 50

12.3.10 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.
12.3.11 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.
50
Drain tray-styrofoam
Discharge air