Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 145

PCB ZPK 2.03
(cont.)
Fig. 89
Combustion grate motor with reversal
sYA
Ash removal screw conveyor motor
sYS *6
Suction turbine motor
sYF
s-Ö *6 Connection to HKK PCB
External charging demand
sXS
Operating message
sYL
Note
The slot assignment on this PCB may differ subject to
the system version.
System-specific slot assignment:
"System examples"
Internally prewired
*6
M M M
3~ 3~ 3~
sYG
sYD
sYH
sYK
sYÖ
Connection and wiring diagram
M M M
1~ 1~ 1~
M
1~
Changeover unit motor
Feed motor
Motor, screw conveyor or rotary lock valve
Motor, flexible agitator discharge
Power supply
145