1. What is Air Conditioner HP per Square Meter?

Definition: This calculator estimates the required air conditioner horsepower based on room area and the unit's coefficient of performance (COP).

Purpose: It helps determine the appropriate AC size for efficient cooling of a given space.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( HP \) — Required horsepower
• \( A_{room} \) — Room area in square meters
• \( COP \) — Coefficient of Performance (typically 3.0-5.0)
• 44.6 — Conversion factor (W/m² to BTU/hr)
• 2545 — Conversion factor (BTU/hr to HP)

Explanation: The formula converts cooling requirements from area to BTU/hr and then to horsepower, adjusted by the unit's efficiency.

3. Importance of Proper AC Sizing

Details: Correct AC sizing ensures energy efficiency, proper cooling, and prevents short cycling or insufficient cooling.

4. Using the Calculator

Tips: Enter the room area in square meters and the COP value (default 3.5 for standard units). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical COP value?
A: Standard AC units have COP between 3.0-4.0, while high-efficiency units can reach 5.0 or more.

Q2: How does room insulation affect the calculation?
A: Poor insulation may require a larger unit. Consider adding 10-20% to the calculated HP for poorly insulated spaces.

Q3: What about rooms with high heat loads?
A: For rooms with many windows, high ceilings, or heat-generating equipment, increase the calculated HP by 15-25%.

Q4: How do I convert HP to tons of cooling?
A: 1 HP ≈ 0.286 tons of cooling. Multiply HP by 0.286 to get cooling capacity in tons.

Q5: Does this account for humidity control?
A: No, for humid climates, you may need a slightly larger unit for proper dehumidification.