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Installation
Power Supply
WARNING
If system components are not grounded, serious injury
from electric current can result if an electrical fault
occurs.
Connect the appliance and pipework to the
equipotential bonding of the building in question.
WARNING
Incorrectly executed electrical installations can lead to
injuries from electrical current and result in appliance
damage.
30
Viessmann AirflowPLUS AH2A Installation, Operating and Service
Viessmann AirflowPLUS
Connection Board
WARNING
Power connections L and N are not interchangeable.
Main
Disconnect
Switch
External Connections
Internal Connections
Power Connection
Terminal
Door Safety
Switch
AC Line
PMP
XFO
XFI
ECM
Power
ECM
Control
Main power supply
120VAC, 1Ph, 60Hz, 12A
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