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II. DEVICE DESCRIPTION
EU-L-9r external controller is intended for controlling valves. The controller enables significant energy saving due to precise
temperature management in particular rooms. Due to advanced software, the controller fulfils a wide range of functions:
• possibility of controlling up to 19 thermostatic actuators via 8 room sensors or room regulators EU-C-8r, EU-R-8b, EU-
C-mini, EU-R-9s, EU-R-9b, EU-R-9z
• one 230V output for a pump
• control of the heating or cooling device via voltage-free contact
• possibility of connecting EU-M-9 control panel
• possibility of controlling the mixing valve (via i-1m valve module)
• possibility of updating the software via USB
• possibility of setting up an individual operation schedule for each zone
• weather-based control
• control of wireless window sensors (up to 6 per zone)
• control of floor temperature sensor
• control of wireless STT-868 or STT-869 actuators (up to 6 per zone)
III. HOW TO INSTALL THE CONTROLLER
EU-L-9r controller should be installed by a qualified person. It may be installed as a free-standing device or as a panel
mountable on a wall.
WARNING
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 cables may lead to controller damage.
IV. FIRST START-UP
Follow these step while starting the device for the first time to ensure its failure-free operation:
Step 1. Connect EU-L-9r controller with all the devices to be controlled
In order to connect the wires, remove the controller cover and connect the cables according to the connector labels and th
e schemes below.
NOTE
There are two ways of establishing main RS communication between external controllers and between EU-M-
9r panel and external controller: with the use of RJ jack or with the use of a 4-pin pluggable terminal block.
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