Main Pcb Up To 80 Kw - Viessmann VITOCROSSAL Service Instructions Manual

Connection and wiring diagram
Connection and wiring diagram
Flue gas damper
gD
Power supply for accessories and Vitotrol 100
lH
Gas pressure switch
aYA
KM-BUS subscriber (accessories)
aVG
Vitotrol 200-A or 300-A remote control
■
■ Mixer extension kit
■ Solar control module, type SM1
■ EA1 extension
■ Wireless base station
AM1 extension
■
A1 Main PCB
A2 Switching mode power supply in main PCB

Main PCB up to 80 kW

Fig. 62
/ A Boiler water temperature sensor
§ §
Ionisation electrode
aA
Flue gas temperature sensor
aG
gF Ignition unit
98
(cont.)
A3 Coding card
A4 ON/OFF switch
A5 Programming unit
A6 Connection adaptor with Optolink
A7 Connection adaptor
A8 LON communication module (accessories)
A9 Reset
A10 Connection extension SA 100
A11 Output extension
A12 Burner control unit
a¢Ö
A
a¢Ö
Fan motor
Fan motor control