REMKO SLN 45, Operating And Installation Instructions

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 housing cover 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 LED display lights 
up 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.

13