1. What Is AC Tonnage Calculation?

AC tonnage calculation determines the cooling capacity needed for a space. One ton of cooling equals 12,000 BTU per hour. Proper sizing is crucial for energy efficiency and comfort.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Tons \) — Required air conditioning capacity
• \( Sq\ Ft \) — Area to be cooled in square feet
• \( Factor \) — Cooling factor in BTU per square foot (typically 20-30 BTU/sq ft)
• \( 12000 \) — Conversion factor (1 ton = 12,000 BTU/hour)

Explanation: The calculation accounts for the size of the space and the cooling requirements based on climate and building characteristics.

3. Importance of Proper AC Sizing

Details: Correct AC sizing prevents energy waste from oversized units and inadequate cooling from undersized units. It affects humidity control, equipment lifespan, and operating costs.

4. Using the Calculator

Tips: Enter square footage of the space and select appropriate cooling factor (typically 30 BTU/sq ft for moderate climates, higher for hot/humid areas).

5. Frequently Asked Questions (FAQ)

Q1: What is a "ton" in AC terms?
A: A ton of cooling equals 12,000 BTU per hour, originating from the amount of heat needed to melt one ton of ice in 24 hours.

Q2: What factors affect cooling requirements?
A: Climate, insulation, window area, ceiling height, occupancy, and heat-producing appliances all influence cooling needs.

Q3: What's the typical cooling factor?
A: Generally 20-30 BTU/sq ft, with 30 being common for moderate climates. Hot climates may require 35-50 BTU/sq ft.

Q4: Should I round up the calculated tonnage?
A: AC units come in standard sizes (1.5, 2, 2.5, 3, 3.5, 4, 5 tons). Round to nearest standard size, but consult an HVAC professional.

Q5: Does this calculator account for zoning?
A: No, for multi-zone systems or rooms with different cooling needs, calculate each area separately.