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Siemens
VAV compact controller KNX/PL-Link G..B181.1E/KN
CE1P3547en
Building Technologies
2017-03-23
5.3 Setting
examples
5.3.1 Symbols and parameters
Volume symbols with “point” (
V
%
) and without point (V) shall have the same
meaning, i.e., they all shall refer to volume flows.
V
%
Volume flow [%]
min
V
%
Minimum volume flow [%]
max
V
%
Maximum volume flow [%]
supply_ air
V
%
Volume flow of supply air controller [%]
r
extract_ ai
V
%
Volume flow of extract air controller [%]
master
V
%
Volume flow of supply air controller (Master) [%]
slave
V
%
Volume flow of extract air controller (Slave) [%]
5.3.2 Min/max control by the supervisory controller
When setting the minimum / maximum air volume flow in the supervisory controller,
the VAV compact controller has to be configured with
min
V
%
= 0 % and
max
V
%
= 100 %.
VAV ratio control 1 : 1
Supply air
Extract air
min
V
%
max
V
%
min
V
%
max
V
%
Supervisory controller
20 %
80 %
20 %
80 %
VAV compact controller
0 %
100 %
0 %
100 %
Reference signal: Y
supply_air
= Y
extract_air
= 35 %
Result:
V
supply_air
= V
extract_air
= 35 %
min
V
%
max
V
%
supply_ air
V
%
V
%
min
V
%
max
V
%
V
%
r
extract_ ai
V
%
Legend to the setting
examples
Setting example A1
