Connection And Wiring Diagram - Viessmann EM-EA1 Installation And Service Instructions Manual

Connection and wiring diagram

DI1 Digital input 1
DI2 Digital input 2
(no function)
DI3 Digital input 3 (no func-
tion)
0 - 10 V IN 0 - 10 V input (no func-
tion)
0 - 10 V OUT 0 - 10 V output (no func-
tion)
PWM1 Output, control voltage
(no function)
S1 Rotary switch
Z1 230 V relay output with
230 V input
Power supply
fÖ
Power supply for addi-
fÖ A
tional accessories
Connection for fault
hH
message signalling
equipment (floating
switching contact)
PlusBus
jF
9