Viessmann WB2-44 - Jumper Assignment and Codings; Assignment of Plug-In Jumper on Circuit Board VR20; External Switching of the Heating Program; External Heat Demand

Additional Information
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Jumper Assignment and Codings
Assignment of plug-in jumper on circuit board VR20
Plug-in jumper ”X6”
Factory default setting without
”External burner disable” function.
With ”External burner disable”
function.
Plug-in jumpers ”X2”-”X4”
Factory default setting without
Viessmann 2-wire BUS expansion
module: Two plug-in jumpers connected
as shown.
With Viessmann 2-wire BUS expansion
module: Both plug-in jumpers removed.
External switching of the heating program (telephone contact)
With programming unit
Change coding address ”011:000” to
”011:001”.
External heat demand field supplied
With programming unit
Change coding address ”011:000” to
”011:001” and ”027:000” to
”027:001”.
Boiler start-up takes place in
accordance with the settings of
coding address ”0C5”.
Boiler water temperature is
maintained at the value selected in
coding address ”0A2”.
5285 961 v1.3