Danfoss VLT HVAC Series Programming Manual page 233

VLT ® HVAC Drive Programming Guide
22-82 Work Point Calculation
Option: Function:
Example 1: Speed at System Design Working Point is known:
From the data sheet showing characteristics for the specific equipment at different speeds, simply
reading across from the H
DESIGN
system design working point. The pump characteristics at this point should be identified and the
associated speed programmed. Closing the valves and adjusting the speed until H
achieved allows the speed at the no flow point to be identified.
Adjustment of par.22-81 Square-linear Curve Approximation
curve to be adjusted infinitely.
MG.11.C6.22 - VLT ® is a registered Danfoss trademark
point and the Q point allows us to find point A, which is the
DESIGN
then allows the shape of the control
3 Parameter Description
3
has been
MIN
3-209