Heating Circuit 1, 2 And 3 - Viessmann VITODENS 222-F Service Instructions Manual

Floor mounted, gas-fired condensing storage combi boiler
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Vitodens 222-F B2TA 19 and 35 Service

Heating Circuit 1, 2 and 3

Coding in the factory setting
A8:1
A9:7
B0:0
B2:8
B5:0
Parameter address B5:...
1
2
3
4
5
6
7
8
(continued)
Heating circuit with mixing valve
creates a demand for the boiler
circuit pump
With pump idle time:
Heating circuit pump "OFF" if
the set value is altered through
a change in operating mode
or through a change in the set
room temperature
With remote control:
Heating mode/reduced mode:
(only change the code for the
heating circuit with mixing
valve)
With remote control unit and
for the heating circuit, operation
with room temperature hook-up
must be programmed: Room
influence factor 8 (change the
code only for the heating circuit
with mixing valve)
With remote control: No room
temperature-dependent heating
circuit pump logic function (only
change the code for the heating
circuit with mixing valve)
With heating circuit pump logic function:
Heating circuit pump "OFF"
RTactual > RTset + 5 K
RTactual > RTset + 4 K
RTactual > RTset + 3 K
RTactual > RTset + 2 K
RTactual > RTset + 1 K
RTactual > RTset
RTactual > RTset - 1 K
RTactual > RTset - 2 K
Possible change
A8:0
Heating circuit with mixing valve
creates no demand for the boiler
circuit pump.
A9:0
Without pump idle time.
A9:1
With pump idle time, adjustable
to
from 1 to 15.
A9:15
B0:1
Heating mode: weather
compensated.
Reduced mode: with room
temperature hook-up.
B0:2
Heating mode: with room
temperature hook-up.
Reduced mode: weather-
compensated.
B0:3
Heating mode/reduced mode:
with room temperature hook-up.
B2:0
Without room influence.
B2:1
Room influence factor adjustable
to
from 1 to 64.
B2:64
B5:1
Heating circuit pump logic function,
to
see the following table:
B5:8
Heating circuit pump "ON"
RTactual < RTset + 4 K
RTactual < RTset + 3 K
RTactual < RTset + 2 K
RTactual < RTset + 1 K
RTactual < RTset
RTactual < RTset - 1 K
RTactual < RTset - 2 K
RTactual < RTset - 3 K
Code 2
61

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