User manual

OPERATION MANUAL
Technical changes reserved
0141 0316-167 20.08.2015
Humidity regulator for sanitary rooms
FREG-BAD
Functional description
The switching device is meant for triggering of a bathroom fan, in
order to ensure both the basic ventilation and also to maintain the hu-
midity within a limiting value. As in the case for conventional devices,
there is an integrated timer and the fan is switched ON after the ba-
throom is occupied for at least 40 seconds (ON delay). Thereafter, the
fan runs with a time control for at least 5 minutes, in order to ensure
the basic ventilation after use of WC or the shower.
In addition, the control device also has an integrated humidity regu-
lator which switches ON the ventilator, if a fast humidity increase is
registered (for example during use of shower) or if the humidity value
rises to over 70% rH. With this, the fungus growth in walls and room
corners is prevented, even if there is an unreasonable utilisation (e.g.
drying or washing) of water quantity involved. However, the fan is
operated only for a long time till the area is again sufciently dry, for
example, to save the heating costs in winter. Moreover, the device
also has a protective mechanism to prevent unnecessary running of
the fan, if for example, with unwanted external climatic conditions, no
further drying level can be achieved.
With a switch input, a timer controlled operation with ON delay and
OFF delay is also possible.
With a second switch input, the humidity regulation can be switched
OFF on demand. In this case, the ventilators are again put to operati-
on by triggering through „Light“ based switch input.
Accessories (optional, not in scope of supply)
PIR-Sensor (Movement alarm unit) the optional sensor is for the
purpose of presence recognition. If a movement is detected for more
than 40 seconds in the area, then the timer controlled fan is switched
ON.
Light sensor: Alternatively, the presence detection can also be done
with an optional light sensor. This is possible, since bathrooms on the
inner areas do not have windows, and hence, while entering normally
the light is switched on.
By the application of PIR-Sensor or light-sensor, the wiring expenses
are reduced, since no switched phase of the light switch is to be
wired.
Dew formation sensor: In addition to humidity sensor, an optional
dew formation sensor can be used at cooling junctions to detect the
onsetting condensation. This results in an enhanced system safety
against fungus formation in critical zones (e.g. outside walls or room
corners).
Safety instructions
The product should be installed and used only
according to the intended application.
The regulation device works on mains voltage.
Contact with live voltage parts leads to fatal
dangers. Therefore, tment and maintenance of the device shall be
carried out by only trained personnel. The device must be assem-
bled inside a switchgear cabinet or in a fully closed plastic housing.
Mounting and servicing operations should be carried out only after
switching off the voltage.
Touching the electronic components in switched off condition should
also be avoided. Electronic components can get damaged due to
electrostatic discharge process.
The product is not meant for controlling electrical systems which
perform safety related functions. In normal operation also, there is al-
ways a danger of malfunctioning due to any fault or disturbance in the
output stage. The user has to ensure that there are no consequential
damages due to malfunctioning or undened switching status.
Due to wrong tightening of screws of the connection terminals or by
use of inappropriate tool, the terminals can get damaged because of
which the insulation or the contact can get disturbed. Badly connec-
ted leads can come out during operation and cause a serious risk
to safety. Due to contact resistance at terminal connections, there
can be increased heat generation which can cause re. Wrongly
wired connections can destroy electric components and cause other
damages.
While mounting the fans, legal guidelines and standards are to be
followed. Fire protection measures shall be duly taken care of !
Attention
Please avoid extreme mechanical and inappropriate exposure.
The device/product is not suitable for potential explosive areas and
medical-technical applications.
Connection diagram
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
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