External Heating Program Changeover - Viessmann vitotronic 200-h Installation And Service Instructions Manual

Installation Sequence Installation Sequence

External Heating Program Changeover

Legend
A Floating contact
B Plug aVD of the control unit
Legend
A Floating contact
B Extension EA1
Preselected heating program
(Contact open)
9
or
w
or
w
22
Code
Central heating "D5:0"
OFF/DHW OFF (Factory set condition)
"D5:1"
Central heating
OFF/DHW ON
Central heating
ON/DHW ON
Vitotronic 200-H, HK1B Installation and Service
Connection Options:
H Plug aVD
H Extension EA1 (accessory, see chapter "Components")
Note: 'Live' contacts lead to short circuits or phase
failure. The external connection must be floating.
Plug aVD
Via coding address "91" in the "General" group, the
function can be assigned to the heating circuits.
Extension EA1
The changeover can be achieved separately for heating
circuits 1 to 3.
Set "5D", "5E" or "5F" in the "General" group to 1.
Via coding address "D8" in the "Heating circuit..." group,
the function can be assigned to the heating circuits.
Changed heating program
(Contact closed)
Constant operation with reduced

room temperature/DHW heating OFF
Constant operation with standard

room temperature, DHW heating in
accordance with coding address "64"