Troubleshooting - Nibe RMU 40 Installateurhandbuch

Change the operating mode by marking the desired
mode and pressing the OK button. To select selectable
functions that are permitted or not, mark the function
using the arrow buttons and press the OK button.
Operating mode auto
In this operating mode you cannot select which functions
are to be permitted because it is handled automatically
by the heat pump/indoor module.
Operating mode manual
In this operating mode you can select what functions
are permitted.
Operating mode add. heat only
Caution
If you choose mode "add. heat only" the com-
pressor is deselected and there is a higher oper-
ating cost.
In this operating mode the compressor in the heat pump
is not active and only additional heat is used.
Functions
"addition" is what helps the compressor to heat the ac-
commodation and/or the hot water when it cannot
manage the whole requirement alone.
"heating" means that you get heat in the accommoda-
tion. You can deselect the function when you do not
wish to have heating running.
"cooling" means that you get cooling in the accommod-
ation in hot weather. You can deselect the function when
you do not wish to have the cooling running. This altern-
ative requires an accessory for cooling or if the heat
pump has a built in function for cooling.
20
Menu 5 - SERVICE
system
RMU 40 version
Here you set which climate system the room unit should
be connected to. Confirm the setting using the OK but-
ton.
The menu displays which product is connected, and the
software version in RMU 40 .
Caution
The climate system must also be activated in the
heat pump/indoor module menu 5.2. Activate
all climate systems you want to control from
RMU 40 .
Manage alarm
Alarm 51
In the event of an alarm a symbol is shown at the top
edge of the display together with the alarm's number.
Go to the your heat pump/indoor module to get more
information.
In the other menus the alarm symbol is shown in the
bottom right hand corner.

Troubleshooting

Communication error
Check that the settings in RMU 40 menu 5 and heat
■
pump/indoor module menu 5.2 agree.
Check the cable connection between RMU 40 and
■
heat pump/indoor module.
Display extinguished
Check the cable connection between RMU 40 and
■
heat pump/indoor module.
SERVICE 5
xxx
RMU 40 | GB