Before commissioning the unit or if
local requirements dictate, the air-
inlet grill and air-outlet grill must
be checked for contamination.
The units are operated using an
integrated hygrostat that is set to
60 % RH (default value for spas
and indoor swimming pools)
.
If the room humidity is below
60 % RH, the unit does not start.
If the relative humidity is
above 60 %, the unit starts
the dehumidification process
automatically.
If you would like to make changes
to the hygrostat settings, remove
the front panel and the control
board cover located in the upper
section in order to access the
control board.
Commissioning
NOTE
When the unit is switched on
or off using the main switch,
a signal is issued upon startup
and the operation LED display
illuminates blue as soon as
the unit is ready for operation.
Once all conditions have
been met, the dehumidifying
process begins.
Display and operator panel
The display is a four-digit seven
segment display. The first two
digits are used to display the
respective “code”, e.g. rHXX, for
setting the room humidity and the
last two digits correspond to the
value set.
In the standard view, no code is
shown on the display. It is only the
value of the humidity currently
measured that is displayed.
The operator panel with the
buttons “Up”, “Down” and
“OK” can be found on the right-
hand side of the front of the
control board. These can be used
to navigate around the menu
structure of the control board and
to couple the control board with
a wireless remote control.
NOTE
If the air humidity is lower
that the set value, the unit will
not start up, even if the mains
voltage is connected.
Control board, front
Control board
The units are equipped with an
electronic controller. This features
various interfaces and a display.
The following section describes
these features in detail.
Code
Value
NOTE
Interrupting the operation of
the unit before the compressor
has run for 6 minutes will
activate a restart lock lasting
approx. 4 minutes.
EXT RH/T
These terminals allow you to
connect up an external electronic
humidity and temperature probe.
The temperature probe must be
an NTC probe with 10 k
Ω
at 25
°C and a B25/85 of 3969 K. The
humidity probe must be designed
for a voltage supply of 12 V DC and
feature an analogue voltage output
of 0-10
_
V with max. 10 mA.
ALARM
The alarm contacts are two
potential-free contacts that are
open in an unswitched state.
The RUN contact is closed when the
compressor is in operation.
The FAIL contact is closed when
there is a malfunction in the unit.
12VDC
Relays can be controlled via the
HEAT contacts in order to switch
the external heating on and
off. They are active when the
°C option in the menu is set to
a value.
USB interface
The information on the USB
interface can be found further on
in this manual.
RS-485 interface
The information on the RS-485
interface can be found further on
in this manual.
12
REMKO SLE 45-85
