Viessmann VITOCROSSAL Service Instructions Manual page 94

Connection and wiring diagram
Connection and wiring diagram
Internal H1 extension
sK
■ Central fault message
■ DHW circulation pump
■ External heating circuit pump
■ Circulation pump for cylinder heating
Gas train
dG
Flue gas damper (accessories)
gD
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
Fan motor
a¢Ö
94
(cont.)
A1 Main PCB
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
A11 Output extension