Mounting On The Wall; Electrical Connections - Viessmann EM-EA1 Installation And Service Instructions For Contractors

Mounting on the wall

1.
Fig. 1

Electrical connections

jF jF [{]
1 2 3 4 1 2 3 4 5 6
Fig. 2
DI1 Digital input 1
DI2 Digital input 2
DI3 Digital input 3
0 - 10 V IN 0 - 10 V input
0 - 10 V OUT 0 - 10 V output
PWM1 Control voltage output
S1 Rotary switch for subscriber number
addressing
2
S1
[{] [{]
1 2 1 2
hH
1 2
Z1 230 V relay output, 230 V input
fD
Power supply
fÖ
Power supply for additional accessories
fÖ A
Changeover contact (floating switching
hH
contact) for connecting signalling equip-
ment for fault messages or an extractor
hood
PlusBus
jF
K1
[{]
fD
1
? ?
fÖ
?