Panasonic CU-B14DBE5, Service Manual, Page: 38 / 109

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2. Precautions in high humidity circumstance.
This air conditioner has been tested according to the “JIS Standard Conditions with Mist” and have been confirmed that there
is no form of any faults. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than
23
°
C), water drops are liable to fall.
• In addition to the normal heat insulation (thickness: more than 8 mm) for refrigerant piping (gas piping: thick piping) and drain
piping, add a further of 10 mm to 30 mm thickness material.
Wall seal
• When the outdoor unit is installed on a higher position than
the indoor unit, install the trap so as not to instill rain water
into the wall by transmitted in piping.
• Stuff the space among piping, the electric wire, and the drain
hose with “Putty” and seal the penetration wall hole.
Make sure that rain water do not instill into the wall.
10.4.7. Electrical wiring
As to the main power source and cable size of outdoor unit, read the installation manual attached to the outdoor unit.
1. Select a power source that is capable of supplying the current required by the air conditioner.
2. Be sure to connect the wires correctly to terminal board with connecting the crimp type ring terminal to the wires.
3. Be sure to turn off the main power before installing and connecting the remote controller.
• Use the standard power cord for Europe (such as HO5RN-F or HO7RN-F which conforms to CENELEC (HAR) rating specifica-
tions) or use the cable based on IEC standard. (245IEC57, 245IEC66)
Warning
The units must be connected to the supply cables for fixed wiring by qualified technician.
Feed the power source to the unit via a distribution switch board designed for this purpose, the switch should disconnected all
poles with a contact separation of at least 3mm.
When the supply cable is damaged, it must be replaced by qualified technician.
Be sure to install a current leakage breaker, main switch and fuse to the main power supply, otherwise electric shocks may result.
Be sure to connect the unit to secure earth connection.
If the earthing work is not carried out properly, electric shock may result.
Wiring shall be connected securely using specified cables and fix them securely so that external force of the cables may not
transfer to the terminal connection section. Imperfect connection and fixing leads to fire, etc.
Note
If momentarily turning on the power supply for both the indoor and outdoor units, do not turn the power off after again until at least
1 minute has passed. (for the system’s automatic setting.)
Turning off the power supply on the way may cause an abnormal operation.