26
When the pre-set temperature is 50°C and the hysteresis value is 2°C, the valve stops in one position when the temperature
of 50°C is reached. When the temperature drops to 48°C, the valve starts opening. When the temperature of 52°C is reached,
the valve starts closing in order to reduce the temperature.
4.9. VALVE TYPE
This option is used to select the valve type:
CH – select this option if you want to control CH circulation temperature.
FLOOR – select this option if you want to control the floor heating temperature. It protects the underfloor heating
installation against dangerous temperature. If the user selects CH as the valve type and connects it to the underfloor
heating system, the fragile floor installation may be damaged.
4.10. WEATHER – BASED CONTROL
For the function of weather control to be active, the external sensor mustn't be exposed to sunlight or influenced by the
weather conditions. After it is installed in an appropriate place, <Weather-based control> function needs to be activated in
the controller menu.
In order for the valve to operate correctly, the user defines the pre-set temperature for 4 intermediate external
temperatures: -20ºC, -10ºC, 0ºC and 10ºC. The user selects external temperature value using LEFT and RIGHT arrows and
defines a corresponding pre-set temperature value using DOWN and UP arrows.
Heating curve – a curve according to which the pre-set controller temperature is determined, on the basis of external
temperature. In our controller, this curve is constructed on the basis of four pre-set temperatures. The more points
constructing the curve, the greater its accuracy, which allows its flexible shaping. In our opinion, four points seem a very good
compromise ensuring decent accuracy and easiness of setting the course of this curve.
NOTE
After weather-based control has been activated, <Pre-set valve temperature > parameter is not available.
4.11. ROOM REGULATOR
This submenu is used to configure the parameters of room regulator which is to control the valve.
Room regulator function is not available in cooling mode.
4.12. PROPORTIONALITY COEFFICIENT
Proportionality coefficient is used for defining valve stroke. The closer to the pre-set temperature, the smaller the stroke. If
the coefficient value is high, the valve takes less time to open but at the same time the opening degree is less accurate. The
following formula is used to calculate the percent of a single opening:
(PRE-SET_TEMP - SENSOR_TEMP) * (PROP_COEFF /10)
To Next Page
Loading...
Need help?
General
