Connecting The Fault Message Input And Fault Message Output; Fault Message Input 230 V (Without System Blocking); Fault Message Input 230 V And System Blocking - Viessmann EM-EA1 Installation And Service Instructions Manual

Installation sequence

Connecting the fault message input and fault message output

Fault message input 230 V (without system blocking):

hH
fD
1
?
A
L
?
N
Fig. 9
Fault message facility
A
Junction box
B
Fault message input 43-1 and conductor L of the
■
power supply at plug
fÖ
phase.
■ Rated current at floating fault message output
Max. 1 A ~.

Fault message input 230 V and system blocking:

hH
fD
1
?
A
L
?
N
Fig. 10
Fault message facility
A
Junction box
B
■ Fault message input 43-1 and conductor L of the
power supply at plug
fÖ
phase.
Rated current at floating fault message output
■
Max. 1 A ~.
14
[{] fÖ
? ?
B
must be connected in
:
hH
[{] fÖ
? ?
B
must be connected in
:
hH
fD
The fault message is active if 230 V voltage is present
at digital input 43-1. Floating fault message output
is switched over from "Ö" to "S".
Fault message F.104 is displayed on the heat genera-
tor control unit.
fD
The fault message is active if 230 V voltage is present
at digital input 43-1. The heat generator is blocked.
Floating fault message output
"Ö" to "S".
hH
is switched over from
hH