Viessmann VITOLADENS 300-W Installation And Service Instructions Manual page 83

Heating circuit 1, heating circuit 2, heating...
Parameter
Address A3:...
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
to
15
Coding in the delivered condition
A4:0 With frost protection
A5:5 With heating circuit pump
logic function (economy
control): heating circuit
pump "OFF" when the
outside temperature (AT)
is 1 K higher than the set
room temperature (RT
OT > RT
Parameter address
A5:...
1
2
3
4
Heating circuit pump
"ON"
-10 °C
-9 °C
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
1 °C
to
14 °C
Possible change
A4:1
A5:0
A5:1
to
A5:15
)
set
+ 1 K
set
With heating circuit pump logic function: Heating cir-
cuit pump "OFF"
OT > RT + 5 K
set
OT > RT + 4 K
set
OT > RT + 3 K
set
OT > RT + 2 K
set
Code 2
(cont.)
"OFF"
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
1 °C
2 °C
3 °C
to
16 °C
No frost protection; this set-
ting is only possible if code
"A3:-9" has been selected
Note
Observe "Please note" for
code "A3"
Without heating circuit
pump logic function
With heating circuit pump
logic function: Heating cir-
cuit pump "OFF"; see fol-
lowing table
83