Tech Controllers EU-L-9r User Manual

22
NOTE
SIGMA function is available only with STT-868 and STT-869 actuators.
Example:
Pre-set zone temperature: 23˚C
Minimum opening: 30%
Maximum opening: 90%
Range: 5˚C
Hysteresis: 2˚C
With the above settings, the valve starts closing if the zone temperature reaches 18˚C (the pre-set value minus range). The
minimum opening is reached when the zone temperature reaches the pre-set value.
After the pre-set value has been reached, the zone temperature starts falling. When it reaches 21˚C (pre-set value minus
hysteresis) the valve starts opening. It reaches the maximum opening when the zone temperature is 18˚C.
 Protection - When this function is selected, the external controller monitors the temperature. If the pre-set
temperature is exceeded by the value specified in <range> parameter, all actuators in a given zone will be closed
(0% opening). This function is active only when sigma function has been activated.
 Emergency mode – This function enables the user to program valve opening, which will be performed in the event
of an alarm in a given zone (sensor failure, communication error).
9. WINDOW SENSORS
9.1. REGISTRATION
In order to register a sensor, select Registration option in the controller EU-L-9r and quickly press the communication
button on the window sensor. Release the button and watch the control light.
 the control light flashes twice - successful communication
 the control light goes on permanently - no communication with the main controller

Tech Controllers EU-L-9r Specifications

General

Brand	Tech Controllers
Model	EU-L-9r
Category	Controller
Language	English