Zones 1-8; Registration; Pre-Set Temperature; Hysteresis - Tech Controllers EU-WiFi 8S p User Manual

2.

ZONES 1-8

This submenu enables the user to configure operation parameters for particular zones.
2.1.

REGISTRATION

The Registration function is available for zones 1-8.
Once the room sensor has been switched on and registered in a zone, it will be used by the EU-WiFi 8S p controller. It
may also be disabled by deselecting ON.
2.2. ON
Once the room sensor has been switched on and registered in a zone, it will be used by the EU-WiFi 8S p controller. It
may also be disabled by deselecting ON.
2.3.

PRE-SET TEMPERATURE

The pre-set zone temperature depends on the weekly schedule settings. However, this function enables the user to
change this value separately - it is necessary to deactivate the schedule. The user may set constant temperature or for a
pre-defined period of time.
2.4.

HYSTERESIS

This function is used to define tolerance of the pre-set temperature in order to prevent undesired oscillation in case of
small temperature fluctuation (within the range 0,1 ÷ 10⁰C) with the accuracy of 0,1°C.
Example: if the pre-set temperature is 23⁰C and the hysteresis is 0,5⁰C, the zone temperature is considered too low when
it drops to 22,5⁰C.
2.5.

CALIBRATION

Room sensor calibration is performed while mounting or after it has been used for a long time, if the zone temperature
displayed differs from the actual temperature. Calibration range is from -10⁰C to +10⁰C with the accuracy of 0,1⁰C.
2.6.

ACTUATORS

This submenu is used to configure the operation of STT-868/STT-869 thermostatic actuators. It is possible to register up
to 6 actuators in each zone. The registration process is described in detail in the section First start-up. In order to
unregister all actuators from a given zone, select Actuator removal function.
From 1.1.0 actuator software version on, it is possible to identify, monitor status or remove single actuators. In order to
do it, press the button on the actuator and hold it for about 2 seconds until EU-WiFi 8S p display shows an information
screen.
The Settings submenu enables the user to configure the operation of thermostatic actuators. It is possible to define the
maximum and minimum actuator opening – these levels of valve opening and closing will never be exceeded.
SIGMA function allows for smooth control of the thermostatic valve. Once the function has been activated, the user may
also define the minimum and maximum level of valve closing.
Moreover, the user adjusts the Range parameter which specifies the room temperature at which the valve starts opening
and closing.
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