Pipe Insulation - Panasonic CS-A7BKP Service Manual

CS-A7BKP CU-A7BKP5 / CS-A7BKP CU-A7BKP6 / CS-A9BKP CU-A9BKP5 / CS-A9BKP CU-A9BKP6 / CS-A12BKP CU-A12BKP5 / CS-A12BKP CU-A12BKP6

10.3.7. PIPE INSULATION

1. Please carry out insulation at pipe connection portion as
mentioned in Indoor/Outdoor Unit Installation Diagram.
Please wrap the insulated piping end to prevent water from
going inside the piping.
2. If drain hose or connecting piping is in the room (where dew
may form), please increase the insulation by using POLY-E
FOAM with thickness 6 mm or above.
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
• If a drain elbow is used, the unit should be placed on a
stand which is taller than 3 cm.
• If the unit is used in an area where temperature falls below
0°C for 2 or 3 days in succession, it is recommended not to
use a drain elbow, for the drain water freezes and the fan
will not rotate.
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.
EVALUATION OF THE PERFORMANCE
• Operate the unit at cooling 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.
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