1. What is an AC Tonnage Calculator?

Definition: This calculator converts cooling capacity in BTU/hr to air conditioning tonnage.

Purpose: It helps determine the appropriate AC unit size needed for a room based on its cooling requirements.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — AC tonnage (tons)
• \( BTU \) — Cooling capacity (BTU per hour)

Explanation: One ton of cooling equals 12,000 BTU per hour. The formula converts BTU requirements to standard AC tonnage units.

3. Importance of Proper AC Sizing

Details: Correct tonnage calculation ensures energy efficiency, proper cooling, and prevents system overwork or short cycling.

4. Using the Calculator

Tips: Enter the cooling capacity in BTU/hr (typically calculated based on room size, insulation, and other factors). Value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine the BTU needed for my room?
A: Use our BTU Calculator or estimate 20 BTU per sq ft (adjust for factors like sunlight, insulation, and occupancy).

Q2: What's the standard AC tonnage for residential use?
A: Common sizes range from 1.5 to 5 tons, with 1 ton typically covering 400-600 sq ft.

Q3: Why is 12,000 BTU equal to 1 ton?
A: This comes from the amount of heat needed to melt one ton of ice in 24 hours (288,000 BTU/24 hr = 12,000 BTU/hr).

Q4: Should I round up the calculated tonnage?
A: Yes, AC units come in standard sizes (0.5 ton increments). Always round up to the nearest available size.

Q5: What if my calculation is between standard sizes?
A: Choose the next larger size if you have high cooling needs, or the smaller size if your climate is moderate.