Viessmann VITODENS 200-W Installation And Service Instructions Manual page 92

Code 2
"Heating circuit ..."/group 5
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 (only
for weather-compensa-
ted control units)
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
AT > RT
weather-compensated
control units)
92
(cont.)
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
)
set
+ 1 K (only for
set
"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
Possible change
A4:1 No frost protection; this set-
ting is only possible if code
"A3:–9" has been selec-
ted.
Note
Observe "Please note" for
code "A3"
A5:0 Without heating circuit
pump logic function
A5:1 With heating circuit pump
to logic function: Heating cir-
A5:15 cuit pump "OFF"; see fol-
lowing table