HVAC A
PPLICATION
Honeywell
• 80
M3.12.6.1
E
NABLE
SETPOINT
1
M3.12.6.2
S
ETPOINT
1
MAX
COMPENSATION
The sensor is placed in Position 1. The pressure in the pipe will remain constant when we have
no flow. However, with flow, the pressure will drop farther down in the pipe. This can be com-
pensated by raising the setpoint as the flow increases. In this case, the flow is estimated by the
output frequency and the setpoint is linearly increased with the flow as in the figure below.
Figure 22. Enable setpoint 1 for pressure loss compensation
PT
PT
Position 1
Position 2
100K23.fh11
Pressure
No flow
Pipe length
Setpoint
Max Freq and Flow
Min Freq and Flow
Se Max compensation
Setpoint
Содержание SmartVFD HVAC MR4
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