Electronics module M2IO connection scheme...
S1
Rotary switch
TS1
%
A Top cylinder temperature sensor
TS2
B Bottom cylinder temperature sensor
%
TS3
No function
TS4
System return temperature sensor
aJ
TS5
No function
X...
Electrical interfaces
A
3-way valve stepper motor
dÖ
B
3-way valve stepper motor
dÖ
Power supply
fÖ
Connection and wiring diagram
(cont.)
Mains voltage output
fÖ
A
PlusBus
jF
To heat management unit gas condensing
A
module (plug
aBH
To heat management unit gas condensing
B
module (plug
jF
PlusBus accessories
C
Fuel cell 3-way valve
D
Gas condensing boiler 3-way valve
E
)
)
161