Lauda Ultracool Superplus series, Руководство по эксплуатации, Страница: 7 / 23

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2
Installation
2.6 Water Connection
It is necessary to install a water filter at the inlet of the chiller in order to
avoid free particles in the water, which could block the evaporator plates
or damage the pump. ultrafilter
will not accept any warranty for the
evaporator freezing if there is no water filter. An appropriate filter is the
ultrafilter P-KG with a PPTF or similar with a filter element of 100
microns or less.
The water connection of the installation of the ultracool unit should be
carried out according to the indications of the labels (stickers) present on
the unit.
The diameter of the inlet and outlet lines must be same size or larger
than those corresponding to the water inlet and outlet of the ultracool
unit. Always install thermal insulation for all pipes.
In the installations in which the water level of the circuit exceeds
the maximum level of the tank inside the ultracool unit, it will be
necessary to install a non-return valve in the water outlet of the
ultracool unit and a solenoid valve in the water inlet.
The supply of this solenoid valve will be carried out by terminals
designed for that purpose (see electrical diagrams).
2.7 Electrical Connection
The electrical design of the ultracool complies with UL 471 and
EN-60204 norms.
The electrical supply is 400V/3~/50Hz or 230V/3~/60Hz depending on
the version.
It must be checked that the supply voltage does not exceed a maximum
variation of 10% referring to nominal.
For the electrical supply of the ultracool unit, use an appropriate
electrical line according to the data in the characteristics plate.
A system of fuses or circuit breakers must be installed before the
power inlet connection to the ultracool unit. The maximum size of
these protections is defined in the electrical diagram.
There are two prepared terminals to connect a remote on-off switch
away from the unit. These terminals are at 24V.
There are two prepared terminals in order to connect a solenoid valve to
the water inlet to the ultracool unit, in such a way that when the ultracool
unit starts, the solenoid valve opens up. These terminals are at 24VAC.
UC-140 I
NDI
GO
50/
60Hz 29.
01.
03
rev
. 0