1. What is AC Unit Tonnage?

AC tonnage refers to the cooling capacity of an air conditioning system. One ton of cooling equals 12,000 BTU per hour. A 2.5 ton AC unit can remove 30,000 BTU of heat per hour from your home.

2. How Does the Calculator Work?

The calculator uses the standard coverage formula:

Where:

• \( \text{Tonnage} \) — AC unit capacity in tons (1 ton = 12,000 BTU)
• \( \text{Square Feet per Ton} \) — Typically 400-800 sq ft per ton depending on climate and insulation

Explanation: The calculation provides an estimate of the area an AC unit can effectively cool based on standard industry guidelines.

3. Importance of Proper Sizing

Details: Proper AC sizing is crucial for energy efficiency and comfort. An undersized unit won't cool properly, while an oversized unit will short-cycle, reducing efficiency and humidity control.

4. Using the Calculator

Tips: Enter the AC unit tonnage (2.5 for a 2 1/2 ton unit) and adjust the square feet per ton based on your climate (600 for moderate, 400-500 for hot, 700-800 for mild climates).

5. Frequently Asked Questions (FAQ)

Q1: How many square feet does a 2.5 ton AC unit cover?
A: Typically 1,200-1,500 sq ft at 600 sq ft per ton, but this varies by climate and home insulation.

Q2: What factors affect AC sizing?
A: Climate, insulation, ceiling height, window size/orientation, number of occupants, and heat-producing appliances.

Q3: Is bigger AC always better?
A: No, oversized ACs cost more to run, wear out faster, and don't properly dehumidify the air.

Q4: How do I know if my AC is properly sized?
A: It should maintain temperature on hot days, run for 15+ minutes per cycle, and keep humidity around 40-60%.

Q5: Should I use this calculator for final sizing?
A: This provides an estimate. For precise sizing, consult an HVAC professional who can perform a Manual J calculation.