Main And Expansion Pcb - Viessmann VITOTRONIC 200 Service Instructions Manual

PCBs and connection options

Main and expansion PCB

Main PCB
For allocation to heat pump type: See "Overview of
PCBs".
230 V~ components
A1
X3.1 X3.1
1 2 3 4 1 2 3 4 1 2 3 4 5 6 7
sYH sYH sYG
1.
r
N N
?
sYÖ sYA
1 2 1 2 3 4 5
Fig. 64
F3 Fuse 6.3 A (slow)
Internal power supply, control unit (factory
fÖ
connection)
/ 230 V~ components (on-site connection)
sYA sYS
Notes regarding the connection values
■ The specified output is the recommended connected
load.
■ The specified current indicates the max. switching
current of the switching contact. Observe the total
current of all connected components of 5 A.
Plug fÖ
Terminals Function
Internal power supply of the PCBs
280
M2 M3
X3.1 X3.1
1 2 3 4 5
sYF
r
M
M
N N N
? ? ?
M
M
1~
sYS sYD fÖ
1 2 3 4
N N
? ? ?
A1
AC
N
F3
6.3 A (slow)
M
N
Factory connections
sYD , sYG
External hook-up, heating/cooling circuits
sYF
External hook-up, heating/cooling circuits or
sYH
Smart Grid
Explanation
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