1. What is CFM to Tonnage Conversion?

CFM (Cubic Feet per Minute) to Tonnage conversion is used in HVAC systems to determine the cooling capacity required for a space. One ton of cooling is equivalent to 12,000 BTU/hour, and the standard conversion factor is 400 CFM per ton.

2. How Does the Calculator Work?

The calculator uses the CFM to Tonnage formula:

Where:

• \( T \) — Tonnage (tons)
• \( CFM \) — Cubic Feet per Minute (ft³/min)

Explanation: This formula converts airflow (CFM) to cooling capacity (tonnage) using the standard HVAC conversion factor of 400 CFM per ton of cooling.

3. Importance of CFM to Tonnage Conversion

Details: Accurate CFM to tonnage conversion is essential for proper HVAC system design, ensuring adequate cooling capacity for residential and commercial spaces while maintaining energy efficiency.

4. Using the Calculator

Tips: Enter CFM value in cubic feet per minute. The value must be greater than zero. The calculator will automatically compute the corresponding tonnage.

5. Frequently Asked Questions (FAQ)

Q1: Why is 400 CFM used per ton?
A: 400 CFM per ton is the standard industry conversion based on typical air density and temperature differentials in HVAC systems.

Q2: Does this conversion apply to all HVAC systems?
A: While 400 CFM/ton is a standard baseline, specific systems may require adjustments based on climate, humidity levels, and system efficiency.

Q3: What if my system requires a different CFM per ton ratio?
A: For specialized applications, consult with an HVAC professional as some high-efficiency systems may use different ratios.

Q4: How accurate is this conversion?
A: This conversion provides a good estimate for standard HVAC applications, but precise calculations should consider additional factors like humidity and temperature.

Q5: Can I use this for both residential and commercial systems?
A: Yes, the 400 CFM per ton conversion is applicable to both residential and commercial HVAC systems.