Seer Air Conditioners
Calculation of Seasonal Energy Efficiency Ratio or SEER SEER is the total number of BTU�s of heat removed divided by each watthour of electricity used. It calculates the efficiency of a cooling system over an entire season. Consider the following example: BTU/h = 6000 SEER = 10 Hours operational per day = 10 Days operational per year = 100 Total usage per year will be = 6000 BTU/h X 10 h/day X 100 days = 6,000,000 BTU Since the SEER is 10, the annual electricity usage = 600,000 watthours Average power usage = 6000 / 10 = 600 W Now assuming that the electricity cost is 20 cents / kWh, the total cost will be 0.6 kW X 20 cents kWh = 12 cents / hour Now if the air conditioner of 10 SEER is replaced by one of 20 SEER, the results are dramatic to say the least. Average power usage = 6000 / 20 = 300 W Total cost = 0.3 kW X 20 cents kWh = 6 cents / hour Effectively the energy cost has gone down by 50%! Seasonal Energy Efficiency Ratio or SEER standards as set by US Government Overall system efficiency is extremely accurately depicted by SEER ratings. With effect from January 2006, all air conditioners except window units, sold in US should have a minimum SEER rating of 13. The amount of energy saving is substantial and by upgrading an air conditioner to SEER 13 from SEER 9, the power consumption drops by 30%. This subsequently results in a huge energy saving.
Haier Air Conditioners � Haier Air Conditioners like ESA3059, ESA 3069, ESA 3089, ESA 3109, ESA 3125, ESA 3159, ESA 3186, ESA 3189 and ESA 3259 are available with ratings of 14 SEER and above. Sanyo Air Conditioners � Sanyo�s air conditioners like 09KS71, 09KLS71, 12KS71, 12KLS71, 26KS72R are available with a 16 SEER Rating. Bryant Air Conditioners � The Preferred Series Central Air Conditioners with models 165A and 163A come with a 15 SEER Rating. The Preferred Series Side Discharge Air Conditioners including model 538A also comes with a 15 SEER Rating. 14 SEER Rating is also available in Legacy Series Central Air Conditioners.
These three are used continuously whenever air conditioners are mentioned. EER or Energy Efficiency Output and COP or Coefficient of Performance are just as important when a decision of which air conditioner to buy is to be made. The following three equations explain the relationship between these ratios:
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