Lauda RP 3050 C, Руководство по эксплуатации

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Proline Kryomats
YAUE0007 / 10/2/2018
Unit description
23
4. Contact Module (Order No. LRZ 914) with connector to NAMUR NE28. Functionality as
LRZ 915, but only one output and only one input on each of two DIN sockets. Coupling socket
3-pole (Order No. EQD 047) and coupling plug 3-pole (Order No. EQS 048).
Further details can be found in section 8.5.
5. Profibus Modules (Order No. LRZ 917).
Further details can be found in the operating instructions (Order No. YAAE0020) of the Profibus
Modules.
4.9 Refrigerating unit
The refrigerating machine mainly consists of one or two fully hermetically sealed compressors. The
heat from the condensation process and the motor is dissipated via a lamellar condenser. Here, fresh
air is drawn in at the front of the unit, heated in the unit and output at the back and the side. To ensure
proper air circulation the ventilation slots must not be restricted respectively covered (

6.1).
The Proline Kryomats are equipped with the SmartCool technology, which makes optimum use of the
compressor and only then cools when refrigerating capacity is demanded by the controller. To achieve
this, a number of sensors in the cooling circuit monitor the operating conditions.
The compressors are equipped with overtemperature cutouts, which respond to the compressor
temperature and the compressor current consumption. In addition, the refrigeration system is backed
up by a pressure control device against over pressure. The cooling unit is normally switched in
automatically, but can be switched manually via the operating menu with Command remote control (

2.2) and with Master control element (

2.1).
When the fault circuit trips, the refrigerating unit is also switched off.
Cooling curves (

11).
4.10 Avoidance of dewing
In order to avoid dewing on the edge of the bath when using the low temperatures of the thermostats,
the devices are equipped with a bath bridge heating and a bath edge heating, using the waste heat of
the refrigerating unit.
4.11 Heater rating and power consumption from the mains
The Proline Kryomats has an extraordinarily high heater rating of 3.5 kW maximum. While the
compressor is running the power consumption and therefore the heater power is reduced.