Viessmann C3TB, Installation And Service Instructions For Contractors

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109
Coding in the delivered condition Possible change
30 % of max. speed (only for
weather-compensated control
units)
E8:1 Only for heating systems without a
heating circuit with mixer:
Min. speed of the internal variable
speed heating circuit pump in op-
eration at reduced room tempera-
ture, depending on setting in cod-
ing address "E9" (only on weather-
compensated control unit) E8:0 Speed corresponding to setting in
coding address "E7"
E9:45 Only for heating systems without a
heating circuit with mixer:
Speed of the internal variable
speed heating circuit pump:
45 % of the max. speed during op-
eration with reduced room temper-
ature (only for weather-compensa-
ted control units) E9:0
to
E9:100 Speed adjustable from 0 to 100 % of
the max. speed during operation
with reduced room temperature
F1:0 Screed drying disabled F1:1
to
F1:6 Only for heating circuit with mixer:
Screed drying adjustable, with
choice of 6 temperature/time profiles
(see page 171)
F1:15 Constant flow temperature 20 °C
F2:8 Time limit for party mode or exter-
nal heating program changeover
via pushbutton: 8 h
*1
Note
Observe settings of coding ad-
dresses "3A", "3b" and "3C" in
group
"General" , and "d5" and
"d8" in group "Heating circuit..." .
F2:0 No time limit
*1
F2:1
to
F2:12
Time limit adjustable from 1 to 12 h *1
F8:–5 Temperature limit for terminating
reduced mode
–
5 °C; see example
on page 173.
Observe setting for coding address
"A3".
F8:+10
to
F8:–60 Temperature limit adjustable from
+10 to
–
60 °C
F8:–61 Function disabled
F9:–14 Temperature limit for raising the
set reduced room temperature
–
14 °C; see example on
page 173.
F9:+10
to
F9:–60 Temperature limit for raising the set
room temperature to the value se-
lected for standard mode adjustable
from
+10 to
–
60 °C
FA:20 Raising the set boiler water or flow
temperature by 20 % when switch-
ing from operation with reduced
room temperature to operation with
standard room temperature. See
example on page 174. FA:0
to
FA:50 Temperature increase adjustable
from 0 to 50 %
Fb:60 Period for raising the set boiler wa-
ter or set flow temperature (see
coding address "FA") 60 min. See
example on page 174. Fb:0
to
Fb:240 Period adjustable from 0 to 240 min.
*1 In the "Heating and DHW" program, party mode ends automatically when the system changes over to operation with
standard room temperature.
Codes
Coding level 2
(cont.)
5775 636 GB
Codes