Siemens OpenAir G..B181.1E/KN Series Technical Basics page 29

Setting example B2
Setting example B3
Siemens
Building Technologies
VAV ratio control, 20 % constant excess supply air volume flow (positive
pressure in the room)
Supervisory controller
VAV compact controller
Reference signal: Y
supply_air
Result: V
supply_air
V % V %
min max
VAV ratio control, 20 % constant excess extract air volume flow (negative
pressure in the room)
Supervisory controller
VAV compact controller
Reference signal: Y
supply_air
Result: V
supply_air
Supply air controller
V % V %
min max
100
80
60
40
20
0
-20
0 40 60 80 100
Y
supply_air
VAV compact controller KNX/PL-Link G..B181.1E/KN
Supply air
V % V %
min max
0 % 100 %
20 % 80 %
= Y = 25 %
extract_air
= 35 %, V = 15 %
extract_air
V % V %
min
V %
supply_ air
Supply air
V % V %
min max
0 % 100 %
20 % 80 %
= Y = 25 %
extract_air
= 35 %, V = 55 %
supply_air
V % V %
min
120
100 100
80
60 60
40 40
V %
supply_ air
20
0
-20
Reference signal
0
Extract air
V % V %
min
0 % 100 %
0 % 60 %
V %
max
Extract air
V % V %
min
0 % 100 %
40 % 100 %
Extract air controller
V %
max
120
80
60
20
Reference signal
40 60 80 100
Y
extract_air
max
V %
V %
extract_ ai r
max
V %
V %
extract_ ai r
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CE1P3547en
2017-03-23