25
Required codes
Group Code Function
Vitotwin 300-W coding addresses
"Source type" "3750:oil/gas boiler" Oil/gas boiler (only for display pur-
poses)
"System scheme" "5700:3" System scheme 3 as standard
function
"HC1" "5710:On" Heating circuit 1 installed
"HC2" "5715:On" Heating circuit 2 installed
"HC3" "5721:On" Heating circuit 3 installed
"Relay output QX2" "5891:Heat request
K27"
Heat request K27, diverter valve
demand, heat source 2
"Relay output QX4" "5894:Suppl source
control K32"
Additional heat source control K32
(lift block on heat source 2)
"Sensor input BX6" "5935:Common flow
sensor B10"
Common flow sensor B10 fitted
(common flow temperature sen-
sor)
Vitotronic 200 coding addresses
"General" "3A:3" External blocking
"General" "61:1" Cylinder primary pump on immedi-
ately
Preparing for installation
Preparing for installation
(cont.)
5618 294 GB
Installation