Siemens LMV51 Series Basic Documentation page 288

288/301
Siemens Building Technologies
HVAC Products
•
Linear progression of O
The O value between the curvepoints should progress in a linear fashion. To
2
make checks, approach load positions between the curvepoints and check the O
value. If the progression is not linear, additional curvepoints should be set and the
O progression should be appropriately corrected.
2
O (%)
2
Linear (good progression of O
6
5
4
O ratio control
2
3
2
1
•
Checking the transfer range between damper and VSD
When using several air-influencing actuators (e.g. air damper or VSD), it should be
made certain that the curves are as smooth as possible. Irregularities should be
avoided.
O (%)
2
____ Good
------ Poor
Basic Documentation LMV5...
19 Addendum 4: LMV52... with O2 trim control and O2 module
value between the curvepoints
2
)
2
Nonlinear (poor progression of O
Set additional curvepoints
100 %
VSD
Damper
)
2
Load (%)
Load (%)
CC1P7550en
13.08.2004
2