Viessmann VG III - Connection and Wiring Diagram

37
Connection and wiring diagrams
Connection and wiring diagram
Legend
11 Ionisation monitoring
36 Fuel valve 2
54 Ignition transformer
100 Burner motor
111 Strapping plug
122 Actuator
123 Actuator
126 Service switch
129 Fuel valve 1
130 Gas governor
131 Air pressure switch
fA Burner plug on control unit
90 D Internal connection inside
plug-in connector lÖ
F
Ă1 Fuse in plug-in module
TR/STB Safety equipment inside
control unit
K.. Burner relay contact
1 Ć qW Plug-in terminals on burner
control unit
A Start command
B - B` Interval for flame to be
established
C Burner operating position
achieved
C - D Burner operation
D Controlled switch-off
St0 Actuator switching position
Stage 0
St1 Actuator switching position
Stage 1
St2 Actuator switching position
Stage 2
Colour coding to DIN/IECĂ757
BK black
BK* black cable with imprint
BN brown
BU blue
GNYE green/yellow
RD red
1)
Connection of assembly modules and
accessories via system plug-in
connector
fA (e.g. Vitoair, gas valve
leak detector kit, extension lead, etc.)
Please note:
The wiring diagrams on the
following pages only apply in
conjunction with Viessmann
products.
5692Ă534ĂGB