Pipe Insulation - Panasonic CS-A28BKP5 Service Manual

CS-A28BKP5/CU-A28BKP5

10.3.6. 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.
CHECK THE DRAINAGE
1. Pour a glass of water into the drain tray-styrofoam.
2. Ensure if water flows out from drain hose of indoor unit.
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.
EVALUATION OF THE PERFORMANCE
1. Operate the unit at cooling operation mode for fifteen
minutes or more.
2. Measure the temperature of the intake and discharge air.
3. Ensure the difference between the intake temperature and
the discharge is more than 8°C.
CHECK ITEMS
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nut
connection?
Is the indoor/outdoor connecting cable being fixed to terminal
board firmly?
Is the indoor/outdoor connecting cable being clamped firmly?
Is the drainage OK?
(Refer to "Check the drainage" section)
Is the earth wire connection properly done?
Is the indoor unit properly hooked to the installation plate?
Is the power supply voltage complied with rated value?
Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation normal?
Is the remote control's LCD operation normal?
Is the air purifying filter installed?
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