Aircon HP Formula:
From: | To: |
Definition: This calculator determines the required horsepower (HP) of an air conditioning unit based on room area and the unit's efficiency.
Purpose: Helps homeowners and HVAC professionals properly size air conditioning units for optimal performance and energy efficiency.
The calculator uses the formula:
Where:
Explanation: The formula converts room area to cooling requirements and then to horsepower based on the unit's efficiency.
Details: Correct HP calculation ensures efficient cooling, prevents overworking the unit, and optimizes energy consumption.
Tips: Enter room area in square meters and COP (default 3.5 for typical units). All values must be > 0.
Q1: What is a typical COP value?
A: Standard units range from 2.5-3.5, while high-efficiency units can reach 4.0-5.0.
Q2: How does room insulation affect the calculation?
A: Poor insulation may require a higher HP. Consider increasing the result by 10-20% for poorly insulated spaces.
Q3: What about room height?
A: This calculator assumes standard ceiling height (2.4-3m). For taller ceilings, multiply area by (height/2.7).
Q4: How to convert HP to BTU/hr?
A: Multiply HP by 2545 to get BTU/hr (1 HP = 2545 BTU/hr).
Q5: What if my room has many windows?
A: Add 10-15% to the calculated HP for rooms with significant sun exposure through windows.