How Many Amps Does A Window Air Conditioner Use

Check the product manual.

How many amps does a window air conditioner use. Below you find a table of how many watts do different air conditioners from 5 000 btu to 18 000 btu use. The total watts all depends on how energy efficient the manufacturer made the appliance. For a small bedroom a 5 000 btu window unit should only use 450 watts a mid size 8 000 btu ac should use fewer than 715 watts a big 14 000 btu air conditioner should only use 1 250 watts even the least expensive units we researched for our review of the best window air conditioners got a score of 11 and all of our picks were rated 12 or 12 1. Most common voltage ratings for ac units are 115 125 and 220 volts and amperage rating can run from 15 to 20 amps.

A 10 000 btu unit has surge wattage of 1800 watts and a running wattage of 1200 watts. Units are available in either 15 20 or 30 amps. For example an 18 000 btu 230 volt air conditioner draws approximately 8 amps of power. Most ptac units are plugged in although they can be hard wired if desired.

Use btu and eer rating to calculate how much power does your air conditioner use. One 10 000 btu air conditioner may use 900 watts of electricity while another one uses 1 000 watts. Some units offer interchangeable cords while other need to be ordered with the correct cord preattached. A 12 000 btu unit has surge wattage of 3950 watts and a running wattage of 3250 watts.

The lower two voltage ratings are common in smaller units while units with a rating higher than 15 000 btus will require a 220 volt circuit. Each 120v circuit in your house is rated for between 15 and 20 amperes and the 240v circuits are rated for 30a. You can divide the btu by eer rating something like 5 000 btu 10 eer 500w. So how do you find out how many watts does a window ac use.

Air conditioners of this voltage are considered permanently mounted even if they are window models because a special 230 volt outlet will be installed at the point of use. Look at tech specs on the manufacturer s or selling company s website.