System Description; How To Install - Tech Controllers EU-L-12 User Manual

II. SYSTEM DESCRIPTION
The EU-L-12 external controller is the heart of an extensive heating control system. It has wireless and RS 485 wired
communication. Its primary function is to maintain the pre-set temperature in each zone. It is the main unit which, together
with all peripheral devices such as the EU-ML-12 slave controllers (max 4), the EU-M-12 control panel, room sensors, room
regulators, floor sensors, an outdoor sensor, window sensors, thermostatic actuators, signal repeaters and Internet modules
form the whole integrated system. The EU-L-12 external controller is therefore an indispensable element of the entire heating
system, while the remaining slave units increase the functionality of this system.
Thanks to advanced software, the EU-L-12 controller may fulfil a range of functions:
•
controlling up to 4 slave controllers EU-ML-12
•
possibility of connecting the EU-M-12 control panel
•
controlling dedicated wired regulators EU-R-12b, EU-R-12s, EU-F-12b, EU-R-X
•
controlling wireless regulators: EU-R-8X, EU-R-8b, EU-R-8b Plus, EU-R-8s Plus, EU-F-8z or sensors: EU-C-8r, EU-C-mini,
EU-CL-mini
•
possibility of connecting an Internet module EU-505, EU-WiFi RS or EU-WiFi L (included with the controller) to control
the system online
•
compatible with a floor temperature sensor
•
compatible with an outdoor temperature sensor (weather-based control function)
•
compatible with wireless window sensors (6 sensors per zone)
•
possibility of controlling wireless actuators STT-868 or STT-869, EU-G-X (6 actuators per zone)
•
possibility of controlling thermostatic actuators
•
possibility of controlling a mixing valve (after connecting a valve module EU-i-1 or EU-i-1m
•
controlling a heating or cooling device using a voltage-free contact
•
one 230V output for a pump
•
possibility of setting individual operation schedules for each zone
•
software update via USB
•
Open Therm communication
III. HOW TO INSTALL
The EU-L-12 controller should be installed by a qualified person.
WARNING
It is impossible to connect two or more EU-L-12 controllers.
CAUTION
Risk of fatal electric shock from touching live connections. Before working on the controller switch off the power
supply and prevent it from being accidentally switched on.
WARNING
Incorrect connection of wires may damage the controller.
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