Direct Answer
Read the duty point at the intersection of system demand and fan capability, then confirm that power, efficiency, speed and control range remain acceptable.
Suitable For
- Technical buyers
- HVAC engineers
- Equipment commissioning teams
Not Suitable For
Curve checks
| Curve item | Check |
|---|---|
| Flow-pressure | Duty point lies on available curve |
| Power | Motor covers absorbed power |
| Efficiency | Duty is not in a poor-efficiency edge |
| Speed | Matches quoted motor and control |
| Density | Correct for temperature and altitude |
Step-by-step Process
- Confirm curve test conditions
- Match units and air density
- Locate the duty point
- Read power and efficiency
- Check control range and margin
Buyer Checklist
- Curve version
- Model and speed
- Air density
- Flow unit
- Pressure unit
- Motor power
- Efficiency point
Information Needed for Quotation
- Target duty point
- Curve or existing model
- Air conditions
- Control method
Frequently Asked Questions
What is the main decision in this fan performance curve guide?
Read the duty point at the intersection of system demand and fan capability, then confirm that power, efficiency, speed and control range remain acceptable.
What should be documented before approval?
Curve version; Model and speed; Air density; Flow unit; Pressure unit.
Can this checklist replace product or legal compliance review?
No. Use it to organize the commercial and technical review, then confirm market-specific compliance with qualified parties where required.
Related Pages
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