Viessmann SDIO - Specification; Connection and Wiring Diagram

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Rated voltage 230 V∼
Rated frequency 50 Hz
Rated current 2 A
Power consumption – electronics 2 W
Power consumption 8.5 mA
Protection class I
IP rating IP 20D to EN 60 529, ensure through design/
installation.
Permissible ambient temperature
■
Operation 0 to +40 °C
■
Storage and transport –20 to +65 °C
Rated relay output breaking capacity
■
Output
sF
1 (1) A 230 V~
■
Output
sS
1 (1) A 230 V~
Connection and wiring diagram
TS1 TS2 TS3 TS4
Fig. 5
A1 Main PCB
F1 Fuse T 2 A (slow)
PWM Speed control, solar circuit pump (if circulation
pump with PWM control installed)
TB Maximum temperature limiter
X... Electrical interfaces
%
Cylinder temperature sensor, NTC 10 kΩ (TS1)
&
Collector temperature sensor, NTC 20 kΩ (TS2)
/
Temperature sensor, NTC 10 kΩ (TS3, if instal-
led)
Specification
Specification
6131981
Appendix