1. What is AC Tonnage Calculation?

AC tonnage calculation determines the cooling capacity needed for a room based on its volume and heat load factors. It helps select an appropriately sized air conditioning unit.

2. How Does the Calculator Work?

The calculator uses the AC tonnage formula:

Where:

• \( Room\ Volume \) — Volume of the space in cubic feet
• \( Factor \) — BTU per cubic foot based on room characteristics
• 12000 — Conversion factor (1 ton of cooling = 12000 BTU/hour)

Explanation: The calculation converts the total BTU cooling requirement into tons, which is the standard unit for AC capacity.

3. Importance of Proper AC Sizing

Details: Correct AC sizing is crucial for energy efficiency, comfort, and equipment longevity. Oversized units short-cycle, while undersized units run continuously.

4. Using the Calculator

Tips: Measure room dimensions accurately. Typical factors range from 4-6 BTU/cu ft (residential) to 7-10 BTU/cu ft (commercial/sunny spaces).

5. Frequently Asked Questions (FAQ)

Q1: How do I measure room volume?
A: Multiply length × width × height in feet. For irregular rooms, divide into rectangular sections.

Q2: What factors affect the BTU factor?
A: Sun exposure, insulation, window area, occupancy, and heat-producing appliances.

Q3: What's the standard tonnage for homes?
A: Typical homes need 1 ton per 400-600 sq ft, but volume calculation is more accurate.

Q4: Can I use this for central AC systems?
A: Yes, but whole-house calculations should sum all room requirements.

Q5: What if my result is between standard sizes?
A: Round up to the nearest half-ton for adequate capacity in extreme conditions.