Expansion Pcb On Main Pcb - Viessmann VITOTRONIC 200 Service Instructions Manual

PCBs and connection options
Main and expansion PCB

Expansion PCB on main PCB

For allocation to heat pump type: See "Overview of
PCBs".
230 V~ components
1 2
sXÖ
L1 N
N ?
M
1 2 3 4 1 2
sXA sXS sXD
Fig. 65
No function
sXÖ
230 V~ components
sXS to sXG
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.
■ The relay contacts for external heat generator and
central fault messages are unsuitable for safety LV.
284
(cont.)
M2
r
U
N L1
?
1 2 3 4 5 6 7
sXF
y
y y
N ? N
2.
r
M2
N N
?
M
1 2 3
sXG
N