Lauda VC 1200, Operation Manual, Page: 19 / 100

3.4.2 Cooling unit
The cooling unit consists of the following main components:
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Compressor
The compressor is equipped with a motor protection switch which reacts
to the temperature and current consumption of the compressor.
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Condenser
An air-cooled or water-cooled condenser is used in the cooling unit
depending on the device type. The heated air is discharged to the envi-
ronment in air-cooled condensers. Fresh air is drawn in through the
front of the device by means of a fan, heated and then discharged at the
back of the device for this purpose. The heat is dissipated via the cooling
water circuit in the case of water-cooled condensers.
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Evaporator
Heat is dissipated via a tube coil evaporator in the internal bath.
You will find technical data on the cooling unit in
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Chapter 11.2
“Cooling capacity” on page 84 .
3.4.3 Interfaces
A general overview of the standard interfaces and the optional interface
modules of the device can be found in the following sections.
The equipment connected to the low-voltage inputs and low-voltage
outputs must have safe separation from dangerous to touch
voltages according to DIN EN 61140 such as by the use of
double or reinforced insulation according to DIN EN 60730-1 or
DIN 60950-1.
The installation of these additional interface modules is described
in these operating instructions. Further information regarding wiring
and the use of these interface modules is provided in the separate
operating instructions for the interface modules. The respective
operating instructions must be consulted regarding appropriate use.
The devices are equipped with a USB interface (type B) as standard. This
interface enables connection to a PC. Software updates are installed on the
device via this interface (only for updaters, no process interface).
The devices are equipped with an alarm output as standard equipment. This
changeover contact is switched if the device changes to the standby state or
if an alarm is triggered. Reverse flow protection can be activated in this way
or faults can be registered on a system.
USB interface
Alarm output
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