Unical HP OWER 320RK, Руководство пользователя и инсталлятора

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5.8.5 Service sleeves
The unit is fitted with an air venting valve to automatically remove air that has built up in the circuit, prevent-
ing undesirable effects such as premature corrosion and wear, lower performance and low exchange output.
The device also features a safety function because, in the event of exchanger breakdown, it allows the refrig-
erant gas to escape outside, preventing it fro being conveyed to the internal terminals.
The valve can be kept in a closed position by closing the plug on the drain; by loosening the plug, the valve
remains in open position and air is discharged automatically.
If you notice a water leak, you must replace the component by unscrewing it with a span-
ner, as shown in the image below.
5.9 ELECTRICAL CONNECTIONS
Check that the power supply matches the unit’s electric nominal data (voltage, phases, frequency) displayed on the rating plate on the unit’s
side panel. The electric power connections must be made in accordance to the wiring diagram enclosed with the unit and in conformity with
national and international standards (providing general circuit breaker, residual current devices for each line, proper earthing of the plant, etc.).
CAUTION: Before starting any operation, make sure that the power supply is disconnected.
CAUTION: Respect the minimum clearances to perform wiring.
CAUTION: The installer is responsible for the disconnection system (e.g. general circuit breaker) upstream of the electrical
connections of the unit.
CAUTION: The supply voltage’s fluctuations cannot exceed ±10% of the nominal value. If this tolerance should not be re-
spected, please contact our technical department. The power supply must comply with the limits mentioned, otherwise the
warranty will expire immediately.
CAUTION: If the supply cable is damaged, it must be replaced by qualified personnel, in order to prevent any risk
ATENTION: Any devices placed nearby can cause / suffer electromagnetic disturbances to / from the unit. Be aware of this
risk at the installation site. It is recommended to electrically power the unit with an adequate line and protections and use
an independent cable duct.
CAUTION: Il pannello controllo remoto è collegato al refrigeratore da 4 cavi con una sezione di 1,5 mm2. I cavi dell’alimen-
tazione devono essere separati dai cavi di controllo remoto. Massima distanza 50 metri.
CAUTION: The remote control panel is connected to the chiller by 4 cables with a cross-section of 1.5 mm2. The power cables
must be separate from the remote control cables. Maximum distance 50 metres.