1. What is an Industrial HVAC Tonnage Calculator?

Definition: This calculator converts cooling capacity in BTU/hr to refrigeration tons, the standard unit for HVAC system capacity.

Purpose: It helps HVAC professionals and engineers determine the appropriate size of cooling systems for industrial applications.

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, which originates from the heat absorbed by melting one ton of ice in 24 hours.

3. Importance of Tonnage Calculation

Details: Proper tonnage calculation ensures efficient system operation, prevents undersizing (inadequate cooling) or oversizing (short cycling and inefficiency).

4. Using the Calculator

Tips: Enter the cooling capacity in BTU/hr. The value must be > 0. The calculator will output the equivalent tonnage.

5. Frequently Asked Questions (FAQ)

Q1: Why 12,000 BTU/hr equals one ton?
A: This comes from the heat absorption of melting one ton (2000 lbs) of ice in 24 hours (288,000 BTU/24hr = 12,000 BTU/hr).

Q2: What's a typical tonnage for industrial systems?
A: Industrial systems typically range from 5 to 500+ tons, depending on the facility size and cooling requirements.

Q3: How do I find the BTU requirement for my space?
A: Use a Manual J calculation or consult HVAC professionals who consider factors like square footage, insulation, and heat-generating equipment.

Q4: Does this calculator work for residential systems?
A: Yes, the formula is the same, though residential systems are typically 1-5 tons.

Q5: What about SEER ratings?
A: This calculator determines capacity, not efficiency. SEER (Seasonal Energy Efficiency Ratio) measures efficiency, not tonnage.