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6 Installation
7 Cover up the cutout holes with electrical tape (field supply).
8 Insert the included batteries in the battery compartments.
9 Close the battery compartments.
Result: The room thermostat is ready for use.
Tabletop installation
You can only use the thermostat as a tabletop solution when the
external temperature sensor is NOT installed. In this case, the room
thermostat functions as a completely wireless unit and can be put in
its holder anywhere in the house.
10 Open the battery compartments and remove the battery
insulators.
11 Insert the included batteries in the battery compartments.
12 Put the room thermostat into its holder.
Result: The room thermostat is ready for use.
6.2
To install the receiver
WARNING
Before obtaining access to terminals, all power circuits
MUST be interrupted.
WARNING
Water entering the receiver may cause an electric leak or
may damage the internal electronic parts.
Prerequisite: You have considered the installation site requirements
for the receiver when selecting the installation location. See
requirements" [ 4 3] for more information.
"5.1 Installation site
1 Drill holes in the wall, taking into account the dimensions of the
receiver.
2 Insert the supplied plugs in the holes.
3 Fasten the receiver to the wall with the supplied screws.
4 Unscrew the front cover screws of the receiver and remove the
front cover.
5 Unscrew both screws of the lower right cable bracket and
remove the bracket.
Installation manual
4
6 According to your application, perform the wiring:
WARNING
All field wiring and components MUST be installed by a
licensed electrician and MUST comply with the applicable
legislation.
Unit
Refer to the wiring diagram or the addendum book for optional
equipment of the unit. Use a wire size between 0.75 mm
2
1.50 mm
. Example unit:
EKRTRB
H
Heating demand
C
Cooling demand
Motorised valve
Wire the motorised valve and the receiver as shown below (heating
only applications). Use a wire size between 0.75 mm
EKRTRB
1N~50 Hz
250 VAC
H
Heating demand
C
Cooling demand
2
and
2
2
and 1.50 mm
.
1N~50 Hz
250 VAC
EKRTRB+EKRTETS
Room thermostat
4P677092-1 – 2021.10
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