Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 189

HKK 2.01 PCB
(cont.)
Note
The slot assignment on this PCB may differ subject to
the system version.
System-specific slot assignment:
"System examples"
KSK 2.03 PCB
A
M M
Fig. 122
Outside temperature sensor
!
Flow temperature sensor
?
Buffer temperature sensors
)
Flue gas temperature sensor
aG
Return temperature sensor
aJ
sL Boiler circuit pump
B Speed, boiler circuit pump
sL
A End position, heat exchanger cleaning
kS
Jumper fitted
lJ
Jumper fitted
lK
A Speed feedback, flue gas fan
a-Ö
B Default speed, flue gas fan
a-Ö
aYÖ Programming unit ribbon cable
Power supply for DHW circulation pump
Connect DHW circulation pumps with standalone func-
tions directly to the 230 V
Mains connection via the Viessmann control unit or
Viessmann control unit accessories is not permissible.
C
Not allocated
aYA
Plug for BLS 1.01 PCB
aYS
KM-BUS
aVG
Lambda probe (on print
a:L
Primary air damper stepper motor
s-D
s-D A Primary air damper stepper motor
Secondary air damper stepper motor
s-F
A Secondary air damper stepper motor
s-F
CAN CAN bus
A KSK 2.03 PCB
BLS 1.01 PCB
B
Jumper, CAN terminator. Factory setting:
C
Closed, for Vitotrol 350
Connection and wiring diagram
∼ supply.
B
)
B
189