1. What is the AC Tonnage Calculation?

The commercial AC tonnage calculation estimates the cooling capacity needed for a space based on its square footage. One ton of cooling equals 12,000 BTU per hour.

2. How Does the Calculator Work?

The calculator uses the standard commercial AC sizing formula:

Where:

• \( Tons \) — Required cooling capacity in tons
• \( Area \) — Total area to be cooled in square feet

Explanation: The formula assumes 1 ton of cooling capacity for every 500 square feet of commercial space as a general guideline.

3. Importance of Proper AC Sizing

Details: Proper AC sizing is crucial for energy efficiency, comfort, and equipment longevity. Oversized units short cycle, while undersized units run continuously.

4. Using the Calculator

Tips: Enter the total area of the commercial space in square feet. For more precise calculations, consider additional factors like insulation, ceiling height, and heat-generating equipment.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation suitable for residential use?
A: No, residential AC sizing typically uses 1 ton per 400-600 sq ft depending on climate and insulation.

Q2: What other factors affect AC sizing?
A: Ceiling height, window area, insulation quality, occupancy, equipment heat load, and local climate.

Q3: What if my space has special requirements?
A: For server rooms, kitchens, or spaces with high heat loads, consult an HVAC professional for a Manual J calculation.

Q4: How accurate is this rule of thumb?
A: It provides a rough estimate. Professional load calculations are recommended for final system sizing.

Q5: What about variable capacity systems?
A: Variable refrigerant flow (VRF) systems can modulate capacity, allowing some flexibility in sizing.