EGK 2A Ex
6 Operation and controls
NOTICE
The device must not be operated beyond its specifications.
CAUTION
Hot surface
Risk of burns
Depending on the operating parameters, the air heat exchanger at the back of the cooler
can reach a temperature of up to 80 °C during operation.
6.1 Switching on the sample gas cooler
Before switching on the unit, check:
– tube- and electrical connections are undamaged and correctly installed.
– no parts of the sample gas cooler have been removed (e.g. terminal box cover).
– protection- and monitoring devices are in place and function (protective motor switch).
– ambient parameters are met.
– Please note rating plate information!
– the motor voltage and frequency matches the mains values.
– electrical connections are securely connected and monitoring devices are connected and set as prescribed!
– air inlets and cooling surfaces are clean, and the air passage is not obstructed (see notices under "Installation site require-
ments")!
– the earth is proper and functional.
– the cooler is properly secured (see chapter
– the junction box cover is closed and the cable glands properly sealed.
– the protective motor switch must be adjusted to the rated current (see chapter
[> page 31]).
– the condensate path is clear. particularly on the option with condensate pump, whether it is controlled together with the
cooler.
Switching on the unit
After switching on the cooler, the block temperature will be displayed.
Once the temperature range has been reached (after approx. 10 minutes, depending on the ambient temperature), the temper-
ature display will be steady, and the status contact will switch over.
If the display flashes during operation or an error message appears, please refer to chapter
[> page 31] for performance data and limits.
15
Bühler Technologies GmbH
BE450020 ◦ 01/2020
