Viessmann B2UA, Installation And Service Instructions Manual

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99
Coding in the delivered condition Possible change
35:0 Without extension EA1 35:1 With extension EA1 (auto-
matic recognition)
36:0 Function output aBJ at
extension EA1:
Fault message
36:1 Feed pump
36:2 DHW circulation pump
3A:0 Function input DE1 at ex-
tension EA1:
No function 3A:1 Operating program
changeover
3A:2 External demand with set
flow temperature.
Set value setting: Coding
address "9b" in this group.
Internal circulation pump
function: Coding address
"3F" in this group.
3A:3 External blocking.
Internal circulation pump
function: Coding address
"3E" in this group.
3A:4 External blocking with fault
message input.
Internal circulation pump
function: Coding address
"3E" in this group.
3A:5 Fault message input
3A:6 Brief operation, DHW cir-
culation pump (pushbutton
function).
DHW circulation pump run-
time adjustment: Coding
address "3d" in this group
3b:0 Function input DE2 at ex-
tension EA1:
No function 3b:1 Operating program
changeover
3b:2 External demand with set
flow temperature.
Set value setting: Coding
address "9b" in this group.
Internal circulation pump
function: Coding address
"3F" in this group.
3b:3 Function input DE2: Exter-
nal blocking.
Code 2
"General"
(cont.)
5773 238 GB
Service