Air Distribution Boxes
The air-distribution-boxes are optional accessories (extra charge) thought for use with miniClima main devices (EBC 10 or 11). They offer the possibility to connect one single EBC unit to up to six showcases. Two sizes of boxes are available: a smaller box for the Constant Humidity Device EBC 10 and a bigger one for EBC 11. Two same-sized boxes are necessary for each device (air inlet/air outlet).
Additionally delivered items: two boxes (one for the air inlet, one for the air outlet), adequate hosepipes and screw connections.
Requirements & Important Notes
The air-distribution-boxes can be used at circumstances where a sufficiently equal airflow will be given for all showcases. Essential requirements for this to reach are:
I) that all showcases are of virtually equal sizes and shapes, made of the same materials, and are of an equal air- and steam-tightness.
II) that all showcases are exposed to the same ambient conditions (located in the same room).
III) that it is planned that all cases connected to the one device shall be brought to the same humidity level.
All showcases will be controlled by one device alone, thus there is no possibility to set different r.H.-levels for the different cases. Furthermore the temperature/humidity-sensor of the miniClima device will have to be placed in just one of the several showcases. The data provided by this sensor will then be used as a reference for all cases, hence the above-mentioned requirements.
The maximum air volume (=the sum of all cases connected to the device) to be processed by the one device will be reduced as compared to the capacity of the device when it is used for one showcase alone. The reduction depends mainly on the number of showcases connected to the device and on the overall length of the used hoses.
When using the boxes the usually necessary diameter of the boreholes in the showcase walls changes as follows (as compared to the direct connection between device and case): EBC 10: 20 mm instead of 25 mm; EBC 11: 25 mm instead of 32 mm. Due to the necessity of equal lengths for some of the hosepipes it has to be calculated with an increased need of space to be able to house the hoses.
Detached Operating Unit
Every standard EBC is built with an integrated operating unit for entering the RH set-value and other parameters as well as for displaying the current states. Alternatively, this integrated user interface can be replaced by a detached one.
For this, the front panel of the correspondingly built EBC features a 25-pin D-SUB connector instead of the ususal display and buttons. The detached operating unit can be plugged onto this connector with a cable of up to 2 m.
The detached operating unit is built with the same LCD display and the same input buttons as the integrated operating unit of a standard EBC. The two delivered assembly brackets are designed in a way, so that the operating unit can be mounted either plane with its front or its back side.