Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual page 109

"Heating circuit ..."/group 5
Coding in the delivered condition
Note
Observe settings of cod-
ing addresses "3A", "3b"
and "3C" in group "Gen-
eral", as well as "d5" and
"d8" in group "Heating
circuit...".
F5:12 Run-on time of the inter-
nal circulation pump in
heating mode: 12 min
(only for constant temper-
ature control units)
F6:25 In the "Only DHW" oper-
ating mode, the internal
circulation pump is per-
manently on (only for
constant temperature
control units)
F7:25 In "Standby mode", the
internal circulation pump
is permanently on (only
for constant temperature
control units)
F8:–5 Temperature limit for ter-
minating reduced mode
–5 °C, see example on
page 163.
Observe the setting of
coding address "A3". (on-
ly for weather-compensa-
ted control units)
(cont.)
Possible change
F2:12
F5:0 No run-on time for the in-
ternal circulation pump
F5:1 Run-on time of the internal
to circulation pump adjusta-
F5:20 ble from 1 to 20 min
F6:0 In the "Only DHW" operat-
ing mode, the internal cir-
culation pump is perma-
nently off
F6:1 In operating mode "Only
to DHW", the internal circula-
F6:24 tion pump will be started 1
to 24 times per day for
10 minutes each time.
F7:0 In "Standby mode", the in-
ternal circulation pump is
permanently off
F7:1 In "Standby mode", the in-
to ternal circulation pump will
F7:24 be started 1 to 24 times per
day for 10 min each time
F8:+10 Temperature limit adjusta-
to ble from
F8:–60 +10 to –60 °C
F8:–61 Function disabled
Code 2
109