Written Nobody can tell you precisely how many units because we don't know the efficiency/losses of your motor. Stills let's assume the losses are 10% of output. Accordingly Units consumed will be 1.1 times the energy supplied by motor in 24 hours. And energy supplied by motor in 24 hours is 3*746*24=53714 WhOr 53.714 unitsMultiply by 1.1 and we get1.1*53.714= 59.083 unitsSo the approximate answer is 60 units Written It depends on the efficiency of the machine loading of the machine (in terms of percentage of current) & the time for that particular load operation takes place (let here be it different for different loading conditions). Let x1 & t1 (in hours) be the load & its operating time for first load & similarly be x2 & t2 (in hours). effi=efficience of machine (in fractional terms). where x1+x2=24 hoursNet o/p power in KW= effi*x1*3*0.746 (load-1) & x2*3*0.746 (load-2)units (in KW-hrs)= effi*x1*3*0.746*t1+effi*x2*3*0.746*t2==effi* 3*0.746*(x1*t1+x2*t2) unitshope it was helpful...Guidic is the most convenient & reliable online grievance platform for career related doubt clearance with verified experts in all.

Career Education Guidance, Career Experts, Counseling Online Written This is excellently explained alreadyRam Sankapal's answer to How many units of electricity will be consumed if we run a 3 HP, 3-phase motors for 24 hours?price of wall unit ac Asked on: August 28, 2014 by Beverly H., Westoncentral air conditioning parts store Which A/C fan setting costs more, “on” or “auto?” stand up ac best buyMy friend believes the “auto” setting uses more electricity. That’s actually a common, but important question. The on/auto fan switch on your A/C thermostat will affect the price you pay to cool your home. The A/C fan circulates the cooled or heated air throughout your home. Setting the fan switch to “on” will make the A/C fan run continuously, 24 hours a day.

Choosing the “auto” setting will cause the fan to shut off with the rest of the cooling system as soon as your desired temperature on your thermostat is reached. Fan “on” costs more Advice from friends can be helpful, but in this case your friend was mistaken to think that the auto setting used more electricity. Let’s assume your air conditioner normally cycles off 30 percent of the time. In this example, turning the fan switch to “on” will make the fan run over 200 extra hours a month. For a typical size central air conditioner, that would cost you about $8 more each month. Keep in mind, a fan that runs all the time may also wear out sooner. Another reason to keep it on “auto” Setting your A/C fan to auto also helps provide better dehumidification. Have you noticed how moisture from the air condenses on the outside of a cold drink on a humid day? Your A/C unit captures moisture the same way, helping your home feel more comfortable. When the fan cycles off using the auto mode, moisture has a chance to drip from the cold cooling coils into the condensation pan and then drain outside.

However, when the fan runs all the time in the “on” setting, less moisture has a chance to drip and drain outside. Instead, some gets blown back into the air again. Some people prefer the feel or sound of the fan running all the time. If that’s you, at least now you know how much that choice will cost you. Learn how to save even moreDuring Florida’s hottest months, we want to remind you that you can save five percent on your monthly cooling costs for each degree you turn your thermostat up. Also, our top summer tips can help you save even more. You can also take our Online Home Energy Survey to get a personalized savings plan filled with energy-saving tips and recommendations. It’s easy, and can save you up to $250 a year. Did you find this Ask the Expert column helpful? Get more expert energy saving advice by following our Ask the Expert column monthly and remember you can submit your own question.In this article, we'll show you how to clean and maintain your central air conditioner to keep it running efficiently.

We won't demonstrate the maintenance steps for a window-mounted model here. Most central air conditioners have two basic parts: an outdoor unit (compressor/condenser) that sits next to your home and an indoor unit (evaporator) that's located in a central duct near your furnace (Fig. A). If you have a heat pump instead of a furnace, the indoor unit will be in the air handler. Use the same maintenance steps we show here. If your furnace looks different from the one in Fig. A, or you have a heat pump, use the owner's manual to find your way around it. The basic parts will be the same. The most important maintenance steps are fairly simple, but if this is the first time you've cleaned the unit, allow about a half day to carefully work through the steps. If you're not up to the task, call a pro (look under “Air Conditioning Contractors” in your Yellow Pages). Cleaning and servicing a central air conditioner costs $100 to $250. Fig. A shows a typical central air conditioning/furnace setup.

Two copper tubes connect the outdoor compressor and its condenser coil (a “coil” is a combination of fins and tubes) to the indoor evaporator coil that's located in the plenum (Fig. A) above the furnace blower. One tube is covered with foam insulation. If you have a heat pump, both tubes will be insulated. Outside, your main job is to clean the condenser coil (Photos 2 - 4). The fan inside the condenser coil sucks air through the fins, and as a result, pulls dirt and debris with it. Dust, leaves, dead grass and anything else that collects on the fins will block airflow and reduce the unit's efficiency. Grass clippings thrown by the lawn mower and “cotton” from cottonwood trees and dandelions are particularly bad offenders. You might have to clear the fins weekly or even daily during the spring “cotton” season! Always begin by shutting off the electrical power (Photo 1). Then proceed with the cleaning (Photos 2 - 4). If the fan motor (Photo 3) has lubrication ports, apply five drops of special oil for electric motors (not penetrating or all-purpose oil).