1. What is the Ducted AC Size Calculation?

The ducted air conditioner size calculation estimates the required cooling capacity (in tons) based on the area to be cooled. Proper sizing is crucial for efficient operation and comfort.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Area \) — Area to be cooled in square feet
• 25 — Standard cooling load factor in BTU per sq ft
• 12000 — Conversion factor (1 ton = 12,000 BTU/hr)

Explanation: The formula calculates the required tonnage by multiplying the area by a standard cooling factor and converting BTU to tons.

3. Importance of Proper Sizing

Details: Correct sizing ensures energy efficiency, proper dehumidification, and system longevity. Oversized units short cycle, while undersized units run continuously.

4. Using the Calculator

Tips: Enter the total area to be cooled in square feet. For accurate results, consider factors like ceiling height, insulation, and sun exposure.

5. Frequently Asked Questions (FAQ)

Q1: What if my ceilings are higher than 8 feet?
A: Multiply the result by (ceiling height ÷ 8) for rooms with higher ceilings.

Q2: Does this account for windows and insulation?
A: This is a basic calculation. For precise sizing, consult an HVAC professional who can perform a Manual J calculation.

Q3: What's the difference between a ton and BTU?
A: 1 ton of cooling equals 12,000 BTU per hour. The term originates from the cooling effect of melting 1 ton of ice in 24 hours.

Q4: Should I round up the result?
A: It's generally recommended to round up to the nearest half ton for residential applications.

Q5: What about commercial spaces?
A: Commercial spaces often require more precise calculations accounting for occupancy, equipment heat, and ventilation needs.