Rehau NEA SMART 2.0 Service Manual page 79

Dehumidifier:
Dehumidifiers are required depending on climatic conditions.
If your system is equipped with dehumidifiers, you can configure them
starting from the main menu in the „Dehumidifier" menu.
The dehumidifiers are assigned to individual rooms in the extended
part of the room page.
Fig. 8-9 Webpage: Dehumidifier
The dehumidifiers are controlled by a weekly program, which switches
between normal and reduced operation, same as it is with the
setpoints for the room temperature. The reduced operation, usually
during the night, reduces the impairment caused by the inevitable
operating noise of the devices. The values for reduced operation have
therefore been intentionally chosen in such a way that in this phase
the dehumidifiers are only started when it cannot be avoided.
Default values:
relative humidity (r.H.):
normal / reduced operation:
55 % r.H. / 80 % r.H.
The relative humidity indicates the extent to which the air is saturated
with moisture. Too high humidity is perceived as unpleasant, and it
can even lead to condensation on cool surfaces. Too low humidity can
lead to skin irritation and breathing problems. Ideal is a humidity in
the range of 40% to 50%. The setting value for the reduced operation
is therefore the absolute upper limit, which should not be exceeded.
Dew point:
normal / reduced operation: 15 °C / 17 °C
The dew point indicates at which surface temperature condensation
occurs on this surface (at the current humidity). In a radiant cooling
system, the cooled surfaces have a temperature of about 17 °C to 23 °C,
depending on type of installation and settings. In order to avoid
condensation on these surfaces, again, the limit value for reduced
operation is the absolute upper limit.
Talk with your installer before you make any changes
here. Correct setting values of the dehumidifiers ensure
safe operation of surface cooling and they also have a decisive
influence on efficiency.
Inappropriate settings may lead to condensation on the cooled
surfaces. In this case there is a risk of slipping, as well as
damage to the surfaces or the entire components.
IT settings:
Here the settings are done to allow the system to connect to Internet
to use the NEA SMART 2.0 App.
Fig. 8-10 Webpage: IT settings
Network SSID:
Insert here the WiFi network name of your router
WPA2 key of WiFi network:
Password (WPA2 key) of your router
WPA2 key for access point (AP) mode:
Change the WPA2 key of NEA SMART 2.0 Base here, if you intend to
use the system in AP mode.
The WPA2 key must be confirmed..
In order to prevent unauthorized access to your system,
it is imperative to change the system's factory-setting of
WPA2 key.
Insert CA hash:
In case that the certificate of the system is expired, the CA hash of
the new certificate must be entered here. The certificate will only
expires if the Base has not been online for several years.
79