1. What is an AC Tonnage Calculator?

Definition: This calculator converts air conditioner cooling capacity (BTU/hr) to tons of refrigeration.

Purpose: Helps determine the appropriate size of air conditioning units for residential or commercial spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Tonnage (tons of refrigeration)
• \( BTU \) — Cooling capacity (BTU per hour)

Explanation: One ton of refrigeration equals 12,000 BTU per hour. The formula converts BTU rating to standard tons.

3. Importance of AC Tonnage Calculation

Details: Proper sizing ensures energy efficiency, adequate cooling, and prevents system overwork. Undersized units won't cool properly while oversized units short-cycle.

4. Using the Calculator

Tips: Enter the air conditioner's BTU rating (found on unit specifications). Common residential units range from 18,000-60,000 BTU/hr (1.5-5 tons).

5. Frequently Asked Questions (FAQ)

Q1: What's a BTU in air conditioning?
A: BTU (British Thermal Unit) measures heat removal capacity. Higher BTU = greater cooling power.

Q2: Why 12,000 BTU equals 1 ton?
A: Historically based on the heat absorbed by melting 1 ton of ice in 24 hours (288,000 BTU/day = 12,000 BTU/hr).

Q3: What tonnage do I need for my home?
A: Rule of thumb: 1 ton per 400-600 sq ft, but consider insulation, climate, and other factors.

Q4: How do I find my AC's BTU rating?
A: Check the model number (often contains BTU info) or manufacturer specifications.

Q5: Can I convert tons back to BTU?
A: Yes, multiply tons by 12,000 (e.g., 2.5 tons = 30,000 BTU/hr).