1. What is the Air Con KW Calculator?

The Air Con KW Calculator converts cooling capacity measured in BTU/hr (British Thermal Units per hour) to electrical power consumption in kilowatts (kW). This helps determine the electrical requirements for air conditioning systems.

2. How Does the Calculator Work?

The calculator uses the power conversion formula:

Where:

• \( kW \) — Power consumption in kilowatts
• \( BTU/hr \) — Cooling capacity in BTU per hour
• \( 3412 \) — Conversion factor (BTU/hr per kW)

Explanation: This formula converts the cooling capacity of an air conditioning unit to its equivalent electrical power consumption, based on the standard conversion rate of 3412 BTU per hour per kilowatt.

3. Importance of Power Calculation

Details: Accurate power calculation is essential for proper electrical system design, circuit breaker sizing, energy consumption estimation, and cost analysis for air conditioning installations.

4. Using the Calculator

Tips: Enter the cooling capacity in BTU/hr. The value must be greater than 0. Common residential AC units range from 5,000 to 24,000 BTU/hr.

5. Frequently Asked Questions (FAQ)

Q1: Why is 3412 the conversion factor?
A: 3412 BTU/hr equals 1 kW based on the standard energy conversion where 1 watt = 3.412 BTU/hr.

Q2: Is this the actual power consumption?
A: This calculates theoretical power. Actual consumption depends on efficiency (SEER rating), operating conditions, and system design.

Q3: What's a typical kW for residential AC?
A: A 12,000 BTU/hr (1-ton) unit typically consumes about 3.5 kW, but varies by efficiency and model.

Q4: How does this help with electrical planning?
A: Knowing kW requirements helps determine circuit breaker sizes, wire gauges, and overall electrical load for your building.

Q5: Can I use this for heat pumps?
A: Yes, the same conversion applies for cooling capacity of heat pumps in BTU/hr to kW.