Defensor Mk5 Technical Documentation

6 Operation
6.1 Unit configuration
40
Warning - danger of electric shock! Disconnect the steam humidifier from the mains
supply (heating and control voltage) before opening the unit.
Warning! Electronic components inside the unit are very susceptible to electrostatic
discharges. For the protection of these components, measures must be taken during all
installation work to prevent damage caused by electrostatic discharge (ESD–protection).
All adjusting elements are situated on the control board:
– Rotary switch “S1”: drain interval
– Rotary switch “S2”: maintenance interval
– Rotary switch “S3”: control signal (see chapter 5.5.3)
– Rotary switch “S4”: unit settings
Setting the drain interval (“S1”)
The evaporation process increases the concentration of mineral salts in the steam cylinder. Periodic
flushing followed by refilling of fresh water can keep the concentration of mineral salts at a low level.
The interval time to be selected depends on the quality of the water and the type of unit. It may have
to be adapted to the actual circumstances during operation. The following maintenance intervals can
be selected.
Position drain interval Unit type Defensor Mk5 Visual/Process
“S1” at 100% steam capacity 5-.. 8-.. 10-.. 16-.. 20-.. 24-.. 30-.. 40-.. 50-.. 60-.. 80-..
0
∞
1 720 min. VE VE VE VE VE VE VE VE VE VE VE
2 360 min.
3 180 min.
4 120 min. X
5 60 min. X X
6 30 min. X
7 20 min. X X
8 10 min. X X X X X
9 5 min.
VE= Setting for fully demineralized water
X= Standard setting
Notes:
– The standard settings (see preceding table) refer to a water hardness of 210 ppm (12 °dH or 21 °fH,
respectively). When using partially softened water the switch must be set to the next lower position
(e.g. from position 5 to position 4).
– If the Defensor Mk5 is operated with fully demineralized water, the switch can be set to “1”.
– If no humidification takes place for more than 4 hours, the unit will proceed to a flushing cycle and
a float test upon the next humidification request.