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Viessmann AirflowPLUS AH2A Installation, Operating and Service
Vitodens 100 WB1B Wiring using DHW Connection
IMPORTANT
This cannot be used in conjunction with DHW or
CombiPLUS equipped boilers.
Viessmann AirflowPLUS
Connection Board
A
Thermostat
Power Pump Module (PPM)
A Heating circuit control connection.
Connect call for heat (K2) relay of the air handler to the
DHW connection (X4 terminals 1 and 2) of the Vitodens
100 WB1B power pump module.
In a system where the DHW contact is not used, the DHW
contact may be used as a second set point (this set point
is not affected by outdoor reset). Refer to page 40 for
additional information.
Installation
23
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