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Air Conditioner Basics

This presentation would surely help you buy the right AC for yourself or for recommending your friend or relative.

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Air Conditioner Basics

  1. 1. What does an AC do?What is an Air Conditioner?Air Conditioner is a HEAT TRANSFERRING DEVICEThe refrigerant inside the air conditioner absorbing the heat from the indoorair and transferring it to outdoor in cooling operation. Air Temperature Air Humidity Air Flow Air Purity Air Odour
  2. 2. How does an AC work? Evaporator CoilsCondensor Coils Compressor Expansion Valve Fan Motor (Including Capillary Tube)
  3. 3. How Air Conditioner Works? What is a Refrigerant? A refrigerant is a compound used in a heat cycle that undergoes a phase change from a Vapour to a Liquid and back Difference between R22 & R410a? R22 R410a Non CFC Free CFC Free R410a has 50~70% more pressure than R22, Hence, a better cooling efficiency R410a has a higher boiling temperature than R22, so can easily operate in high ambient temperaturesCFC: Chloro Fluoro Carbons
  4. 4. How Air Conditioner Works? Condensor Coils High Temperature & Liquid Vapour High Pressure Fan MotorExpansion Valve Compressor Capillary Tube Liquid Vapour Evaporator Coils Hot Air
  5. 5. Basic Terminology Non Star Rated System 1 Ton = 12000 BTU (British Thermal Unit) 1.5 Ton = 18000 BTU (British Thermal Unit) 2 Ton = 24000 BTU (British Thermal Unit)Cooling Capacity (In Watts) = Cooling Capacity (In BTU). 3.413 Star Rated System 1 Ton = 12000 BTU = 3516 Watts 1.5 Ton = 18000 BTU = 5274 Watts 2 Ton = 24000 BTU = 7032 Watts
  6. 6. Basic TerminologyTo Calculate the Tonnage, if Cooling Capacity is given in Watts Tonnage = Cooling Capacity (In Watts)*3.413 12000
  7. 7. Basic Terminology Tonnage Calculator Tonnage Recommended Room Size 0.75 TON Below 80 Sq. ft. 1.0 TON Up to 110 Sq. ft. 1.25 TON Up to 150 Sq. ft. 1.5 TON Up to 160 Sq. ft. 2.0 TON Up to 210 Sq. ft. 2.5 TON Up to 265 Sq. ft. 3.0 TON Up to 315 Sq. ft.Under Standard Condition 1. Ceiling height is not more than 9.5 feet to 10 feet 2. AC is not installed East facing 3. Not more than 1 Glass Window
  8. 8. Why Split Air Conditioner?1. Powerful outputs to cool large areas2. Quiet operation3. More features and function4. Attractive designs5. Good air distribution of the same size6. No obstruction of Window Space7. Better EER
  9. 9. STAR RATING(By BEE (Bureau of Energy Efficiency)) What does more stars mean? Ans. More Energy Saving
  10. 10. STAR RATING (By BEE (Bureau of Energy Efficiency)) EER (Energy Efficiency Ratio) = Cooling Capacity (In Watts) Input Wattage (In Watts) Star Rating Slab# From 2012 Star Rating Slab* EER (W/W) EER (W/W) Star Rating Star Rating Min. Max. Min. Max.1 Star ★ 2.30 2.49 1 Star ★ 2.50 2.692 Star ★★ 2.50 2.69 2 Star ★★ 2.70 2.893 Star ★★★ 2.70 2.89 3 Star ★★★ 2.90 3.094 Star ★★★★ 2.90 3.09 4 Star ★★★★ 3.10 3.295 Star ★★★★★ 3.10 ↑ 5 Star ★★★★★ 3.30 ↑#Still Applicable for 2012 & 2013 Window AC *Applicable for 2012 & 2013 Split AC3 Star 1.5T Split AC (EER: 2.90) is more energy efficient than 3 Star 1.5T Window AC (EER: 2.70)3 Star 1.5T Split AC (Input Wattage: 1800Watts) 3 Star 1.5T Window AC (Input Wattage 1950Watts)Savings: 0.15 Units/hour>>>Savings Per Day@10hour operation: Rs.7.5/->>>Savings Per Month: Rs.225/-
  11. 11. How to Increase Star Rating? To Increase Star Rating i.e. Save more energy EER is to be Increased There are two ways to increase EER 1. Reduce Input Wattage i.e. Energy Efficient Compressor that takes less current 2. Increase surface area of Condenser Coils*, this would dissipate the heat faster, and the cooling would be faster Compressor would cut off early Save Electricity This is reason why Outdoor Unit of 2 Star, 3 Star and 5 Star differ in size 2 Star 3 Star 5 Star* Applicable only for Copper Condenser and not Micro Channel Condenser
  12. 12. Application of 5 Star Rated ACWhich is Best Application Area for a 5 Star Rated AC?Bed Room or an Area where AC runs for Long Periods (Max. 8 to 10 Hours)For Eg. 1.5 Ton 5 Star Model Consumes 1520W i.e. 1.52 unit/Hour 1.5 Ton Non Star Model Consumes 2120W i.e. 2.12 unit/Hour Savings with 5 Star AC is 0.6 Unit /Hour Per Unit Cost = Rs. 5/- Savings with 5 Star AC Rs. 3/Hour Savings with 5 Star AC if run for 10hours/day is Rs. 30 Per Day Savings with 5 Star AC Per Month (30 Days) is Rs. 900 Per Month Savings with 5 Star AC Per Year if is operated for 8 Months in a year Rs. 7200/- In Next Five Year you would get your money back, rest is all savings
  13. 13. Inverter Technology: Energy SavingJust like a diesel car, Inverter AC too have a bit higher initial cost but pays for itself with time.More you use it, more you save.
  14. 14. Inverter Technology: Cost Saving 4 Times of Running CurrentCurrent Current Variable Running Current Running Current Time Time For 1.5Ton Non Inverter, 4KVA Stabilizer is recommend due to high current requirement initially For 1.5Ton Inverter, Stabilizer is not required in areas where fluctuations are not there Only 2KVA max. load requirement is there. Taking Scenario of 100% Power Back Up for 3BHK Property, which means 4 ACs
  15. 15. Inverter Technology: Less Noise 1 2 3
  16. 16. Inverter Technology: Faster Cooling
  17. 17. Inverter Technology: Comfort Non Inverter Room Temperature 320C Compressor Working Big Temperature VariationSetTemperature260C Time
  18. 18. Inverter Technology: Comfort Room Temperature 320C Inverter Compressor Working Very Minimal Temperature VariationSetTemperature260C Time

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This presentation would surely help you buy the right AC for yourself or for recommending your friend or relative.

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