Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors page 105

Fuel cell based micro chp unit with integral gas condensing boiler and adjacent cylinder module natural gas version
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Subscriber numbers of the connected extensions
Function
Select the operating status (e.g.):
Fault message input
Fault message output
Operating mode changeover
System configuration (parameters)
(cont.)
Electronics mod-
Extension
ule
DIO
EM-EA1
DIO
EM-EA1
DIO
EM-EA1
Setting
Rotary switch S1
1
2
3
105

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