EUROSTER 4020TXRX
–
INSTALLATION AND OPERATION MANUAL
3
5.2.
The proper place of installation
The thermostat is designed for indoor installation. In order to ensure fully efficient operation of
the thermostat, please make sure that the following recommendations regarding the location
of the thermostat are observed:
•
Locate the thermostat at the height of approximately 1.5 m above the floor
•
Avoid places with strong sunlight, near heating or cooling devices, situated directly by
doors, windows, and other similar locations, where the temperature measurement could
be easily disturbed by external conditions.
•
Avoid places with poor air circulation, e.g. behind furniture.
•
Avoid moist places due to the negative effect of moisture on the service life of the
device.
5.3.
Insertion and replacement of batteries
Place the batteries in the thermostat while observing the correct polarity. There are installation
markings in the battery compartment. Then install (snap) the thermostat onto the base.
CAUTION! Use only alkaline AAA batteries to power the thermostat. Do not use
rechargeable batteries because their voltage is lower, and their effective time is
shorter.
It is recommended to replace batteries before each heating season.
5.4.
Sample Connection Diagrams
The following diagrams are simplified and do not cover all elements necessary for the correct
installation.
In arrangement with a 230 V 50 Hz device
1.
Electrical connection block
2.
Output cable using COM - NO contact (normally open)
3.
Euroster RX (receiver)
4.
Euroster TX placed in any room
In a system with a gas boiler
1.
Electrical connection block
2.
Output cable using COM - NO contact (normally open)
3.
Euroster RX (receiver)
4.
Euroster TX placed in any room
5.5.
SETTING TEMPERATURE
Use the
“
” and “
” buttons to set the desired temperature value. Pressing one of the buttons
for the first time activates the backlight, pressing it repeatedly lowers or raises the