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I have a GE model No. BTN 748A100A1 (central air outside unit). Serial number 40564128. When was it made? What is its efficiency? It now handles #1950 sq. ft. Cab it handle 2950 sq ft when I remodel?

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GE stopped making AC units probably 20 years ago. The same unit will not handle an additional 1000 sq. ft. I believe it is a four ton unit and about a 6 SEER rating which is way down on the efficency scale. You will need a 5 ton system to handle 2950 sq. ft. The average SEER rating now is 13.5.

Posted on Oct 08, 2009

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Where is relay on GE Executive central outside unit? Model number is BTN736A100A0


If by 'relay' you mean the control(s) to automatically bring on the a/c, it will be contained inside the outdoor units electrical compartment, Evelyn.

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Air Conditioner SEER Seasonal Energy Efficiency Ratio


Energy consumption for home air conditioning accounts for almost 5% of all the electricity produced in the USA. Energy Policy Act mandates minimum energy efficiency standards for commercial buildings, using research and standards developed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers. Energy Star qualified central air conditioners have a higher seasonal efficiency rating (SEER) than standard models, which makes them about 14% more efficient than standard models. Energy efficiency specialists with certified training on retrofits and energy savings on both residential and light commercial units may enable you to save up to 50 percent on your air conditioning bills with the use of a high efficiency energy system. Substantial energy savings can be obtained from more efficient systems.

SEER (Seasonal Energy Efficiency Ratio) is related to the Energy Efficiency Ratio (EER), which is the ratio of output cooling in Btu/Hr and the input power in watts W at a given operating point and also to the coefficient of performance (COP) commonly used in thermodynamics. SEER rating more accurately reflects overall system efficiency on a seasonal basis and EER reflects the system’s energy efficiency at peak day operations.

The SEER rating is the Btu of cooling output during a typical cooling-season divided by the total electric energy input in watt-hours during the same period. SEER is related to the Energy Efficiency Ratio (EER), which is the ratio of output cooling in Btu/Hr and the input power in watts W at a given operating point and also to the coefficient of performance (COP) commonly used in thermodynamics. SEER rating more accurately reflects overall system efficiency on a seasonal basis and EER reflects the system’s energy efficiency at peak day operations. The higher the SEER number, the greater the efficiency of your unit. Therefore you will realize greater energy savings. The higher efficiency your product, the lower your long-term energy costs will be. Both central AC and air source heat pumps are rated according to seasonal energy efficiency ratio (SEER).

Before you consider upgrading your cooling equipment, the cheapest way to save money and energy from cooling is to reduce the need for mechanical air conditioning in the first place. Ask your contractor about a variable speed air handler, which will improve comfort and efficiency and allow continuous air filtering at minimum energy cost. Also, because ducts are often responsible for a lot of wasted energy, make sure you hire a contractor who knows about high-efficiency installations. If your central air conditioning unit is more than 12 years old, replacing it with an Energy Star qualified model could cut your cooling costs by 30 percent.


on Dec 14, 2009 | Heating & Cooling

2 Answers

How to find serial #


Hello;

My name is Peter. I am a retired field service refrigeration technician.

You do not need a serial number. The serial number is only specific to that unit.

Go into the following web site. Type in your model numbers above. You will get a list of 24 refrigerators that start with those numbers.

The 24 in the number means your unit is 24 cubic foot.

http://www.searspartsdirect/

Mar 05, 2015 | GE Refrigerators

1 Answer

Unit not cooling inside below 72 degrees lines sweating


how hot is it outside??? 20 degree split is usually the norm ,,,,,outside 95 then inside will be 75,,,,,where is the line sweating ,,, it should sweat near outdoor unit

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1 Answer

We have a central air unit that is serial number BTR736B100A0 and model number 314127T18. I need to know the size of the unit. What square footage of house is this for?


This is a 3 ton unit. I go tthat from the 36 in your serial number. 36 means 36,000 btu's which equals 3 tons which cools a home 1,500 square feet to 1,700. If this help please rate me and do a testimonial.

May 23, 2011 | GE Heating & Cooling

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What ton is good man ckl 49 il where is the model number onthe furnace


ok ready for this? To find the tonnage look at the serial # Tonnage is related to 12's If there, on the serial # there is say 0062490 the tonnage is 24 or two tons 24 divided by 12 equals 2 Say the serial # contains 0063090 then the tonnage is 2 1/2 because of the 30 hopefully you see what I am saying the number in the serial # if it can be divided by 12 or 6 this is the tonnage. If you will send me the serial number I will tell you the tonnage. The serial number is on the outside unit at the copper connections where the electrical lines go in.

Good luck on your repairs hope this helped send me a note online here and if you need I will give you tonnage if you send the model # and serial number with your response> I will check online around 1500 hours on 1/9/10 central time. Remember to look for the numbers that are divisible by either 12 or 6 on the serial number

Dave

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1 Answer

A/c question answered


one last question ?when you go outside the house and you look at the unit does it have pipes runing to another outdorr machine

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