AC Wattage Formula:
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The 3 Ton AC Wattage calculation estimates the power consumption of a 3-ton air conditioning unit based on its SEER (Seasonal Energy Efficiency Ratio) rating. This helps in understanding energy usage and electrical requirements.
The calculator uses the formula:
Where:
Explanation: The formula converts cooling capacity from tons to BTU/hr (3 × 12,000) and divides by the SEER rating to estimate wattage.
Details: SEER measures air conditioning efficiency - higher SEER means more cooling per watt consumed. Modern units typically range from 13 to 25 SEER.
Tips: Enter the SEER rating from your AC unit's specifications. Typical values range from 13 to 25 for modern units.
Q1: What is a typical wattage for a 3-ton AC?
A: For a SEER 14 unit: ~2,570W. For SEER 20: ~1,800W. Higher SEER means lower wattage.
Q2: How does this relate to electrical costs?
A: Multiply wattage by hours of use and electricity rate ($/kWh) to estimate costs.
Q3: What's the difference between SEER and EER?
A: SEER is seasonal efficiency, EER is efficiency at peak load. SEER is generally higher.
Q4: Does this account for startup surge?
A: No, this is running wattage. Startup may require 2-3 times more power briefly.
Q5: How accurate is this estimate?
A: It provides a good approximation but actual usage varies with temperature, humidity, and system condition.