12.4 Technical data
Inputs
7 inputs for Pt 1000 or PTC temperature sensors in 2-wire connection
Input at terminal 14 alternatively for storage tank thermostat
1 input for room panel/potentiometer
1 input for demand/outdoor temperature 0 to 10 V, Ri = 20 k
W
(demand: 0 to 10 V correspond with 0 to 120 °C flow temperature)
(outdoor temperature: 0 to 10 V correspond with –40 to 50 °C outdoor
temperature)
Outputs
Three-step or on/off signal at terminals 23/24:
Load 20 to 250 V AC, 0.5 A (triac outputs with varistor suppression)
Three-step or on/off signal at terminals 20/21:
Load 230 V AC, 2 A (relay outputs with varistor suppression)
3 pump outputs:
Load max. 230 V AC, 2A (relay outputs with varistor suppression)
1 output for demand/outdoor temperature 0 to 10 V, load > 2 k
W
Operating voltage
230 V AC (+10 %, –15 %), 48 to 62 Hz, max. 3 VA
Ambient temperature
0 to 50 °C (operation), –10 °C to 60 °C (storage and transport)
Relative humidity
Normal, no dew formation
Degree of protection
IP 40 according to EN 60529
Class of protection
I according to EN 50178
Degree of contamination
2 according to EN 50178
Overvoltage category
II according to EN 50178
Noise immunity
According to EN 61000-6-1
Noise emission
According to EN 61000-6-3
Weight
Approx. 0.6 kg
92
EB 5433 EN
Appendix
