Panasonic CS/CU-YW9DKE Service Manual page 38

CS-YW9DKE / CU-YW9DKE / CS-YW12DKE / CU-YW12DKE
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
ı ı ı ı ˇ ı ˇ ı ˇ ı ˇ ı I f a drain elbow is used, the unit should be placed on a
stand which is taller than 3 cm.
ı ı ı ı ˇ ı ˇ ı ˇ ı ˇ ı I f 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
ı ı ı ı ˇ ı ˇ ı ˇ ı ˇ ı O pen front panel and remove air filters.
(Drainage checking can be carried out without removing the
front grille.)
ı ı ı ı ˇ ı ˇ ı ˇ ı ˇ ı P our a glass of water into the drain tray-styrofoam.
ı ı ı ı ˇ ı ˇ ı ˇ ı ˇ ı E nsure that water flows out from drain hose of the indoor
unit.
EVALU ATION OF THE PERFORMANCE
ˇ ı O perate the unit for fifteen minutes or more.
ı ı ı ı ˇ ı ˇ ı ˇ ı
ı ˇ ı ˇ ı ˇ ı ˇ ı M easure the temperature of the intake and discharge air.
ı ı ı
ı ˇ ı ˇ ı ˇ ı ˇ ı E nsure the difference between the intake temperature and
the discharge is more than 8°C during cooling operation or
ı ı ı
14°C during heating operation.
NOTE:
These equipment shall be connected to a suitable
mains network with a main impendance less than:
YW9DKE:0.39ohm, YW12DKE: 0.30ohm.
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nut
connection?
Is the connecting cable being fixed to terminal board firmly?
Is the 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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CHECK ITEMS