NOTE!
You can choose to control your main product ac-
cording to the relative humidity (RH) in the air,
which is measured by your RMU S40. Activate this
choice in menu 7.1.6.4 – "Humidity control" in the
main product.
You can also choose to control your main product
according to the relative humidity (RH) in the air
during cooling operation. (If you have cooling in-
stalled and activated.) Activate this choice in menu
7.1.7.2 – "Humidity control" in the main product.
Select "Limit RH in cold".
NIBE RMU S40 | EN
Disturbances in comfort
In most cases, RMU S40 notes a malfunction (a malfunction
can lead to disruption in comfort) and indicates this with
alarms, and instructions for action, in the display.
MANAGE ALARM
In the event of an alarm, some type of
malfunction has occurred, which is indic-
ated by the status lamp shining with a
steady red light. A dialogue box appears
in the display, containing information
about the alarm.
ALARM
In the event of an alarm with a red status
lamp, a malfunction has occurred. The display shows what
type of alarm it is and lets you reset the alarm.
In many cases, it is sufficient to select "reset alarm" for the
installation to revert to normal operation.
If the alarm indication disappears after you have selected
"reset alarm", the cause of the alarm has been remedied. If
the alarm recurs, the cause of the problem remains.
"Auxiliary operation" is a type of emergency mode. This
means that the installation tries to produce heat and/or hot
water, even though there is some kind of problem. This could
mean that the compressor is not in operation. In this case,
any electric additional heating produces heat and/or hot
water.
NOTE!
To select "Auxiliary operation", an alarm action
must be selected in menu 7.1.8.1 – "Alarm actions"
in the main product.
NOTE!
Selecting "Start auxiliary mode" is not the same
as correcting the problem that caused the alarm.
Therefore, the status lamp will remain red.
ALARM
12
Alarm
Reset alarm
Activate auxiliary operation
29