Connecting The Fault Message Input And Fault Message Output - Viessmann EM-EA1 Extension Installation And Service Instructions Manual
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EM-EA1 Extension Installation / Service
Connecting the Fault Message Input and Fault Message Output
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A Signal for external demand or external blocking
B Junction box
Connecting the fault message input and fault message
output
Connection without system blocking via 120V fault
message input: fD
Fault message input 43-1 and conductor L of the
power supply at plug fÖ must be connected in phase.
Rated current at floating fault message output hH:
Max. 1A ~.
The fault message is active if 120V voltage is present
at digital input 43-1. Floating fault message output hH
is switched over from "Ö" to "S".
Connections
11
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