Seifert 46122001, Руководство пользователя

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Version No. 1-2 - 28.06.2022 Doc. No. 9946122001 5 / 19
4. Settings
The cooling unit is intended to be used as a complementary accessory to larger industrial equipment. The unit
is used where heat needs to be dissipated from electrical control cabinets or similar enclosures in order to
protect heat sensitive components. It is not intended for household use. The unit has two completely separate
air circuits which ensure that the clean cabinet air does not come into contact with the ambient air which may
well be dirty or polluted. Control cabinet cooling units can dissipate large quantities of heat from sealed
enclosures such as electrical enclosures into the ambient air and at the same time reduce the cabinet internal
temperature to below that of the ambient air.
The unit can function without problems in extreme ambient conditions (e.g. dusty and oily air) with a standard
operating temperature ranging b10°C and +55°C. Units can be ordered with an additional electrical
cabinet heater. For the cooling capacities and evironmental ratings please refer to the type plate data.
Controller
The unit is equipped with a temperature controller which regulates the function of the air-conditioning cycle. At
normal working conditions the display shows the temperature inside the enclosure. The cooling set point for the
interior of the enclosure (parameter St / St1) is pre-set at 35°C and can be adjusted b20°C and
+50°C.
To change the cooling set point St/St1:
1. Press ‘Set’ till St/St1 appears on the display.
2. Press the Up/Down buttons to adjust the temperature setting.
3. Press ‘Set’ to save the new setting.
To change the heating set point St2 (Units with internal heater only):
1. Press ‘Set’ till St1 appears on the display and release the button.
2. Press again ‘Set’ till St2 appears on the display.
3. Press the Up/Down buttons to adjust the temperature.
4. Press set to save the new setting.
Important Note: when changing settings ensure that: (St2 + 5K) < St1
The unit also has a potential free high temperature alarm relay (normally closed configuration) that is pre-set to
switch when the enclosure temperature exceeds 55°C. If necessary the alarm relay configuration and the set
point can be changed via the controller’s parameters. Kindly contact your nearest service / sales partner for
further details on how to change these parameters.