Ventilation System: Frequently Asked Questions

## Q1: What should I do if the duct noise is too loud?

** Root Cause Analysis: **
- Wind speed too high
- Duct resonance
- Fan imbalance

** Solution: **
1. Reduce fan speed or install a variable frequency drive
2. Add a silencer or soundproof wrapping
3. Check fan impeller balance

## Q2: How to troubleshoot insufficient airflow?

**Check Steps: **
1. Check if the fan rotation direction is correct
2. Clean dust from filters and air ducts
3. Check valve opening
4. Confirm the pipeline is leak-free

Q3: How is condensate handled?

**Preventive Measures: **
- Ensure the insulation layer is properly applied to the duct.
- Set drain outlet
- Inclined installation for easy drainage

Q4: How to select corrosion-resistant ductwork?

** Recommended choice: **
- Mild Corrosion: Galvanized Steel Ducts
- Moderate corrosion: Stainless steel 304
- Highly corrosive: Stainless Steel 316L or Teflon-lined

## Q5: Is system power consumption too high?

** Energy-saving measures: **
1. Equipped with a variable-frequency fan
2. Optimize pipe layout to reduce resistance
3. Regular maintenance ensures optimal performance
4. Add waste heat recovery unit