1. What is Ducted Air Conditioning Sizing?

Ducted air conditioning sizing calculates the appropriate cooling capacity (in tons) needed for a space based on area and thermal load factors. Proper sizing ensures efficient operation and optimal comfort.

2. How Does the Calculator Work?

The calculator uses the ducted AC sizing formula:

Where:

• \( Area \) — Floor area in square meters
• \( Load \) — Thermal load factor (0.12-0.15 kW/m²)
• \( 3.517 \) — Conversion factor from kW to tons of refrigeration

Explanation: The formula converts thermal load requirements into standard HVAC tonnage units, where 1 ton of refrigeration equals 3.517 kW of cooling power.

3. Importance of Proper AC Sizing

Details: Correct AC sizing is crucial for energy efficiency, comfort, and system longevity. Oversized units short cycle, while undersized units struggle to maintain temperature.

4. Using the Calculator

Tips: Enter area in square meters and select appropriate load factor based on insulation, windows, and climate. Standard load (0.12) for well-insulated spaces, high load (0.15) for poor insulation or hot climates.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect the load factor?
A: Insulation quality, window area, ceiling height, occupancy, equipment heat, and local climate conditions.

Q2: Why is 3.517 used in the calculation?
A: This converts kilowatts to tons of refrigeration, where 1 ton = 3.517 kW of cooling capacity.

Q3: What if my space has unusual characteristics?
A: For spaces with high ceilings, large windows, or special requirements, consult an HVAC professional for manual J calculation.

Q4: Can I use this for multi-room systems?
A: This calculates total system capacity. For multi-zone systems, additional factors like zoning requirements should be considered.

Q5: How accurate is this calculator?
A: Provides good estimates for standard residential applications. Professional load calculations are recommended for commercial or complex projects.