Description

KNX touch-thermostat 2M black

CHARACTERISTICS

Supply voltage: BUS 29 V SELV.
Consumption: 10 mA.
Terminals:
- TP bus;
- Digital input for NO or NC contact (with no potential, SELV);
- Maximum distance between the input contact and the thermostat: 30 m;
- NO relay output ( 24 V~ SELV 4 A cos 1; 24 V~ SELV 2 A cos 0.6).
Operating temperature: 0 Â°C - +40 Â°C (inside).
ErP classification (Reg. EU 811/2013):
- ON/OFF: class I, contribution 1%;
- PI: class IV, contribution 2%;
- with actuator with proportional analogue outputs KNX: class V, contribution 3%
This device contains only SELV circuits that must be kept separate from circuits with dangerous voltage.
RGB backlit touch display with colours that can be configured via ETS parameter:
- fixed colour chosen by the installer;
- dynamic colour change depending on the set-point value by enabling the Ecometer function
Internal temperature probe: measurement range from 0 to 40 Â°C with reading accuracy of: â‰¤Â±0.5 Â°C between 15 Â°C and 30 Â°C; â‰¤Â±0.8 Â°C at the extremes.
External temperature probe: measurement range from -20 to 70 Â°C with comparable accuracy to the internal temperature probe; beyond the stated temperatures, the error increases.
Temperature sensors that can be managed by the thermostat 02952
- Internal NTC.
- Possibility of connecting an external NTC art. 02965.1-20432-19432-14432.
- Possibility of using the temperature values sent over the bus from 8 different KNX temperature sensors ( DPT_Value_Temp data)
Reference temperature For each of the two thermostats A and B the reference temperature for the climate control is the weighted average among all the available temperature sources (if present):
- Internal NTC;
- External NTC art. 02965.1-20432-19432-14432;
- via bus (KNX temperature sensors 1 to 8).
The weights of the various temperature sources are set via ETS; source temperatures with weight 0 are not included in the calculation of the reference temperature.
Systems management with:
- 2/4 pipes and on/off and proportional valves;
- Fan coils with 3 speeds, 3 proportional and constant proportional speeds;
- Neutral zone (only 4 pipes).
- Control algorithm: On/Off, I, PI.
Boost function: each thermostat A and B has a second temperature control stage which, if enabled, triggers to support the first one when the detected temperature differs from the desired set-point by at least a predetermined thresholdâ€.
Ambient humidity display: the thermostat can display ambient humidity whose value is sent by the bus to the thermostat via appropriate data points.
Dew point
System protection functions:
- Antifreeze and Too Hot;
- Floor temperature protection;
- Generic alarm.
16 scenarios.