Filter
Top Products
10-00
Page 13
2008-12-03
3.6.2. MHB Reflow System Overview
Figure 6. System Overview – MHB Reflow
Functional description
The water tub is filled up to a preset upper level via the level-controlled supply valve. When the water
level in the tub drops below a certain limit, the level-controlled supply valve opens until the upper limit
is reached again. The pump is activated whenever the float is high and continues to operate for a
preset time after the float level drops.
The MHB Reflow model provides On/Off control by means of the MHB control unit and an external
On/Off humidistat. In case of a humidification/cooling request the pump is activated. The water flows
via the manually adjustable volume controlling valves to the distribution pipes above the
humidification boxes.
The distribution pipes evenly supply the water to the entire surface of the humidification boxes where
it flows down and humidifies the air flowing through the humidification boxes. The excess water not
used for humidification flows to the water tub. To prevent accumulation of mineral residues and the
formation of germs in the water tub, the tub is completely drained periodically (interval or time
controlled).