CorroVenta A15ES, User Manual, Page: 22 / 67

A15ES
© Corroventa Avfuktning AB 2022.05 22 (67)
The settings for ’No filter’ have the above depicted appearance. At the top is presented what filter it
is referring to, the current actual pressure drop and current fan speed. This information is followed
by whether the alarm feature is selected to be active or not and the pressure drop below which the
machine is to conclude that no filter is mounted. Ideally and in theory, if there were no filter
mounted, the pressure drop should be zero but some margin is required to allow for turbulence,
accuracy in measurement etc. To adjust settings, push Change and make the required changes.
With the down arrow option on the lower right button, one can step to the next of the four settings
screens available.
The settings for ’Dirty filter’ have the above appearance and, as can be seen, it follows has the same
overall structure. The difference is that that the last row, max pressure, presents the pressure level
that, if exceeded at given current actual fan speed, will trigger the alarm. A quick comparison of this
value, 240 Pa in the example, and the current actual pressure drop of 180 Pa will give an indication of
the filter status.
Push of Change in the above screen will at first present the user with the possibility of switching the
alarm functionality on or off, Yes or No, whereafter the presentation automatically shifts to that
depicted below. In sequence, the user can here adjust at what pressure drops the alarm shall trigger
for the fan speeds given in the first column. To the right, the settings are presented in the form of a
diagram with the pressure drop on the vertical y-axis and the fan speed on the horizontal x-axis. The
point currently adjusted is highlighted and also presented with a square symbol in the diagram. The
current actual, the pressure drop currently measured by the machine and the speed at which the fan
is running is shown in the diagram with a plus sign.