1. What is AC Tonnage Calculation?

AC tonnage calculation determines the appropriate air conditioning capacity needed for a room based on its area. Proper sizing ensures efficient cooling, energy savings, and optimal performance.

2. How Does the Calculator Work?

The calculator uses the AC tonnage formula:

Where:

• \( T \) — AC tonnage (tons)
• \( A \) — Room area (square feet)
• 25 — BTU per square foot factor
• 12000 — BTU to tons conversion factor

Explanation: The formula calculates the required cooling capacity by multiplying room area by 25 BTU/sq ft (standard cooling load) and converting the result from BTU to tons (1 ton = 12,000 BTU).

3. Importance of Proper AC Sizing

Details: Correct AC sizing is crucial for energy efficiency, comfort, and system longevity. Undersized units struggle to cool, while oversized units short-cycle, reducing efficiency and humidity control.

4. Using the Calculator

Tips: Enter room area in square feet. For irregular rooms, calculate total area by summing individual sections. Consider additional factors like ceiling height, insulation, and sun exposure for more precise sizing.

5. Frequently Asked Questions (FAQ)

Q1: Why is 25 BTU per square foot used?
A: This is a standard estimate for average residential cooling needs. Actual requirements may vary based on climate, insulation, and room usage.

Q2: What if my room has high ceilings?
A: For ceilings over 8 feet, multiply the result by (ceiling height ÷ 8) for better accuracy.

Q3: Does room orientation affect AC sizing?
A: Yes, south-facing rooms with more sun exposure may require 10-20% more capacity.

Q4: What about rooms with many windows?
A: Add 1,000 BTU for each window, especially if they receive direct sunlight.

Q5: Is this calculation suitable for commercial spaces?
A: Commercial calculations are more complex and should consider occupancy, equipment heat, and ventilation requirements.