Venting Program; Screed Drying - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Function description
Control functions
(cont.)
External demand
Input DE1
Input DE2
Input DE3
The effect on the internal circulation pump is selected
in coding address "3F" in the "General" group.
The effect on the relevant heating circuit pump is
selected in coding address "d7" in the "Heating cir-
cuit" group.

Venting program

During the venting program, the circulation pump will
be alternately switched on and off for 30 s over a
period of 20 min.

Screed drying

When activating screed drying, observe the informa-
tion provided by the screed manufacturer.
When screed drying is activated, the heating circuit
pump for the heating circuit with mixer starts and the
flow temperature is maintained in accordance with the
selected profile. On completion (30 days), the heating
circuit with mixer is controlled automatically according
to the set parameters.
Observe EN 1264. The report to be provided by the
heating contractor must contain the following heat-up
details:
Temperature profile 1: (EN 1264-4) code "F1:1"
50
40
30
20
10
1 5 10
Fig. 65
Temperature profile 2: (ZV parquet and flooring technology) code "F1:2"
50
40
30
20
10
1 5 10
Fig. 66
112
15 20 25 30
Days
15 20 25 30
Days
The set minimum boiler water temperature for external
demand is selected in coding address "9b" in the
"General" group.
The burner is switched off during the venting program.
Activating the venting program: See "Venting the heat-
ing system".
Heat-up data with respective flow temperatures
■
■ Max. flow temperature achieved
■ Operating state and outside temperature during
handover
Various temperature profiles can be set via coding
address "F1" in the "Heating circuit" group.
The function continues after a power failure or after the
control unit has been switched off. "Heating and DHW"
is started when screed drying is finished or if code
"F1:0" is set manually.
Code
3A:2
3b:2
3C:2