Ducted Air Conditioning Calculator

Cooling Load Formula:

\[ Capacity (kW) = Area (m²) \times 150 W/m² \]

Cooling Capacity:

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1. What is Ducted Air Conditioning?

Ducted air conditioning is a centralized cooling system that distributes conditioned air through a network of ducts to multiple rooms or zones. It provides whole-house comfort with discreet ceiling or floor vents.

2. How Does the Calculator Work?

The calculator uses the cooling load formula:

\[ Capacity (kW) = Area (m²) \times 150 W/m² \]

Where:

\( Area \) — Total floor area in square meters
\( 150 W/m² \) — Standard cooling load factor for residential applications
\( Capacity \) — Required cooling capacity in kilowatts

Explanation: This formula provides a basic estimate of cooling requirements based on floor area, using a standard load factor of 150 watts per square meter.

3. Importance of Proper Sizing

Details: Correctly sizing ducted air conditioning systems is crucial for energy efficiency, comfort, and system longevity. Oversized systems short cycle, while undersized systems struggle to maintain temperature.

4. Using the Calculator

Tips: Enter the total floor area in square meters that requires cooling. This calculator provides a preliminary estimate - professional assessment is recommended for final system sizing.

5. Frequently Asked Questions (FAQ)

Q1: Why use 150 W/m² as the load factor?
A: This is a standard residential cooling load factor that accounts for typical heat gains from windows, occupants, and appliances in moderate climates.

Q2: When might I need a different load factor?
A: Factors like high ceilings, large windows, poor insulation, or commercial spaces may require adjustment. Hot climates may need 180-200 W/m².

Q3: What's the difference between kW and BTU?
A: 1 kW = 3,412 BTU. Most residential systems are rated in kW in metric countries and BTU in imperial system countries.

Q4: How accurate is this calculator?
A: This provides a basic estimate. Professional load calculations consider insulation, window types, orientation, occupancy, and local climate.

Q5: Can this calculator be used for multi-zone systems?
A: This calculates total capacity. Multi-zone systems require additional calculations for duct sizing and zone control requirements.