![]() ![]() Since 1 kW = 3412 Btu/h - COP for 1 ton coolingcan be calculated asĬOP = (12000 Btu/h) / ((1 kW) (3412 Btu/h / kW)Ī small cooling unit operating at 1 ton per kW (1000 watts) is equivalent to a COP of 3.52 or an EER power of 12. P w = input electrical power consumption (Btu/h, W) The Energy Efficiendy Ratio EER power can be calculated asĬoefficient of Performance - COP - can be calculated as COPĪ cooling unit operates at 1 ton cooling (1 ton/kW) - or 12000 Btu/h. Upon calculating your system size, you will be shown a selection of systems that fit your recommended size. Click the 'Calculate System Size' button. Enter the approximate square feet of the area in your home that you need to heat/cool. SEER should be at least 10 - there are units where SEER reach at least 17. Select the system type needed for your home. of Air in Straight Duct HVAC Air Handling Unit Design Excel Calculator. SEER - Seasonal Energy Efficiency Ratio - can be calculatedĮ = seasonal electrical energy consumption (Wh) This calculator is provided for use to calculate basic size in BTU to adequetley. This calculator works with inverter, non-inverter, Split and window ACs. Besides, you can also estimate your monthly and annual electricity bills (for the AC consumption alone). P w = input electrical power consumption (W) SEER - Seasonal Energy Efficiency Ratio You can calculate your daily, monthly, and annual units consumption. Note that EER is sometimes erroneous based on cooling power and electrical power consumption as In hotter climates air conditioners with EER above 10 should be selected. In mild climates air conditioners with EER of at least 9.0 should be selected. Please add room dimensions in meters below. Length (Metres) Width (Metres) Height (Metres) Window Dimensions (M 2) These are optional fields, however the more detail you can provide the more accurate the result will be. the higher EER - the more energy efficient is the systemĮ = input electrical energy consumption (watt-hours, Wh)ĮER is common for room air conditioners ranging 5000 - 15000 Btu per hour (1.5 kW - 4.5 kW). Enter the details of the room that your air conditioner will be installed in and press the Calculate button for the ideal size/capacity in Kilowatts (kW). AC Tonnage Calculator accurately estimates the size in Tons & BTUs, as well as the cost to install Central Air in different climate zones (regions).EER - Energy Efficiency RatioĮER is a measure of how efficient a cooling system operates in steady state (over time) when the outdoor temperature is at a specific level (outdoor conditions commonly used are 95 oF (35 oC)). Some air conditioner manufacturers participates in the voluntary Energy Star labeling program where the Energy Star label indicates higher EER and SEER ratings. These ratings are normally posted on the Energy Guide Label attached to all new air conditioners. SEER - Seasonal Energy Efficiency Ratioįor air conditioners in rooms it is common to use EER - Energy Efficiency Ratio.įor central air conditioner systems it is more common to use SEER - Seasonal Energy Efficiency Ratio.Equipment used in cooling systems in residential and small commercial buildings often express the cooling system efficiency in terms like ![]()
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