EUROSTER 4020TXRX
–
INSTALLATION AND OPERATION MANUAL
7
12.2.
Selecting operating mode
While holding the "B" button pressed, insert the receiver into the plug socket. Depending on
the mode set, the green or red LED lights up. Each time the button is pressed, the operating
mode changes. When you select the mode, the receiver restores operation.
Green - normally open mode (COM
–
NO). It is the mainly used operation mode. While the
device operation indicator is active, the output cables are shorted.
Red
–
normally closed mode (COM
–
NC). While the device operation indicator is active, the
output cables are opened.
Caution! The factory default setting is (COM-NO).
13.
FIRST START
When inserted into the plug socket, the receiver indicates the relay operating mode. A flash of
green LED
–
normally open mode (COM-NO), a flash of red
–
normally closed mode (COM-NC).
Any change in the status of the thermostat (switching the heating on/off) is made immediately
by the receiver, while the confirmation that the radio signal is received from the transmitter is
repeated every 15 minutes.
13.1.
Radio signal strength
The radio signal strength is indicated together with the reception of the transmitter signal.
Radio signal reception is indicated in green. LED flashing three times stands for a very strong
range, twice for a strong range, and once for sufficient range.
13.2.
No radio communication
If the communication between the thermostat and the receiver is interrupted (e.g. discharged
batteries) and if this condition lasts for 60 minutes (no response from the receiver), the
receiver switches to the frost protection mode. The heating device will be switched on every 3
hours for 20 minutes to prevent the rooms from being cooled down. At the time of re-
establishing communication (replacement of batteries), the receiver will automatically switch
the system off and resume operation.
If there is no radio communication, the green LED flashes rapidly.
13.3.
Continuous operation of heating device (MAN)
In the event of a system failure, it is possible to manually switch on the heating. Move the
switch on the RX receiver to the MAN position. Such status is indicated by a rapid flashing of
the red LED. In addition, after a moment the display of the thermostat shows "On I" and
symbol.
13.4.
Receiver signaling table.
Function
Signaling
Pairing
Blue
Reception of radio signal
Green
Lack of signal
Green
–
flashing
The heating device is switched on
Red
Manual operation in heating mode
Red
–
flashing
The air-conditioning device is switched on
Blue
Manual operation in air conditioning mode
Blue - flashing
14.
MAINTENANCE
Do not use solvents and aggressive detergents to clean the thermostat, since they may
damage the surface of the housing and the display. Clean the thermostat housing with a soft
cloth.