1. What is a 1 HP Aircon Room Size Calculator?

Definition: This calculator estimates the appropriate room size (in square feet) that can be effectively cooled by a 1 horsepower air conditioner based on its COP.

Purpose: Helps homeowners and HVAC professionals determine if a 1 HP AC unit is suitable for a given space.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( A_{room} \) — Room area in square feet
• \( COP \) — Coefficient of Performance (typically 3.0-4.0 for residential units)

Explanation: The formula converts the cooling capacity of 1 HP (2545 BTU/hr) into room size capacity, adjusted by the unit's efficiency (COP).

3. Importance of Proper AC Sizing

Details: Correct AC sizing ensures energy efficiency, proper humidity control, and prevents short cycling which can reduce equipment lifespan.

4. Using the Calculator

Tips: Enter the COP value (default 3.5 for typical residential units). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is COP?
A: Coefficient of Performance measures cooling output divided by energy input. Higher COP means better efficiency.

Q2: What's a typical COP value?
A: Standard units range 3.0-4.0, while high-efficiency models can reach 5.0+.

Q3: Why 2545 in the formula?
A: 1 HP equals 2545 BTU/hr of cooling capacity.

Q4: Does this account for room insulation?
A: No, this is a basic calculation. Poor insulation may require a larger unit.

Q5: How does ceiling height affect this?
A: Rooms with higher ceilings (over 8 ft) may need additional capacity.