Window Air Conditioning System

Written by:  • Edited by: Lamar Stonecypher
Updated Dec 10, 2008

Window air conditioners are one of the most commonly used and cheapest type of air conditioners. To install one of these units, you need the space to make a slot in the wall, and there should also be some open space behind the wall.

Window air conditioners are one of the most popular types of air conditioners being used. Whether it’s your study room, bedroom, or hall, the window air conditioner can be used for almost all types of spaces.

To fit the window air conditioner in your room, you need to make a slot in one of the walls of the room that is to be cooled. This system extends around two feet beyond the wall in the back side; hence behind the wall some free space should be available so that the hot air can be thrown easily from the condenser. The dew collected from the room is also thrown from the back of the air conditioner. Thus window air conditioners can be used only if there is place available in the wall to make the slot, and there is free space behind the wall for dissipating the heat and dripping water.

Window air conditioners are comprised of components like the compressor, condenser, expansion valve or expansion coil, and the evaporator or the cooling coil, all housed in a single box. There is also a motor which has shafts on both sides. On one side of the shaft the blower is connected, which sucks hot air from the room and blows it over the cooling coil, thus cooling it and sending it to the room. On the other shaft the fan is connected, which blows the air over Freon gas passing through the condenser.

The window air conditioner is the cheapest of all air conditioning systems. If your room or office size is about less than 100 sq. ft. a window air conditioner of about 0.8 ton can be good enough. If the size of room is more than this but less than 200 sq. ft. your HVAC designer will recommend a window air conditioner of about 1 ton. For rooms of bigger sizes but less than 300 sq. ft. the system of about 1.5 ton is advisable. However, these sizes may change depending upon the number of people occupying the space, its alignment with respect to sun, and other sources of heat generation inside the room. It is better to consult your HVAC designer to find out the exact size of window air conditioner suitable for your space.

One of the complaints that window air conditioners have had is that they tend to make noise inside the room. But this problem has been greatly overcome by the present day efficient and less noisy rotary compressors, which also consume less electricity. Today a number of fancy and elegant looking models of window air conditioners are available that enhance the beauty of your rooms.


Comments

Showing all 15 comments
 
Sanjit Apr 25, 2011 1:51 PM
window ac not working properly
My 1.5 ton Samsung Window AC is not working properly. Could it be because I did not clean it this year? Or, because there is not much open space behind the AC? It's surrounded by high walls and the total open space is 10x3 feet where it is fitted. Please tell me what is the possible reason behind this.
Thanks a lot.
Eng.moneer Feb 12, 2011 3:53 AM
RE: Window Air Conditioning System
Hi
i want to know more about heat exchanger (windwo type) please.
ranjit Nov 11, 2010 9:30 PM
thanks giving
thanks sir
mohmmed Jun 27, 2010 12:50 PM
basic informatin of salse field
Dear Sir ,

I want to know more information about air condition to inprove my salse ,

Thank Very Much
Eng. Amit kumar Jun 21, 2010 5:11 AM
calculation for required tonnage of AC unit
Dear Sir,

I would like to know the formula for calculating the required AC tonnage if i know the size of the room for residential purpose.
sandeep May 17, 2010 4:02 AM
which one is best window / spilt ac
I want to buy a AC......which one u would advice window / spilt ac.plz give me comparison factors in terms for power consumption ,price etc.....
ADEBAYO ADEKUNLE Apr 27, 2010 8:19 AM
AC MAXIMUM POWER REQUIREMENT
Hello Sir,

I really appreciate your professional advice on this medium.

Please I will like to know how to convert the Air conditioner tonnage into the required maximum power requirement in Watt/Kilowatt or horse power.

Thank you
chitta ranjan karmi Apr 22, 2010 7:43 AM
can u help me?
excuise me sir i want some notes and internal figures of the packaged unit
chitta ranjan karmi Apr 22, 2010 7:40 AM
excuise me sir, can u give me some information about air conditioner packaged unit... and also want some internal figures of packaged unit? i m chitta
excuise me sir, i want some notes and internal figures of the packaged unit
Amit Apr 17, 2010 12:40 AM
AC for rented house
Hi,
Which AC (Split or Window) will you recommend for rented house.
Haresh Khemani Mar 24, 2010 8:40 AM
AC tonnage
Hi Amit,

I would recommend 1 ton split unit since there won't be much difference in cost and power consumption between 0.75 and 1 tons units. As such the air flow rate of split units is lesser compared to the window units, so you may not be satisfied with the air flow rate of 0.75 unit.

Haresh
amit ghate Mar 24, 2010 5:41 AM
AC toannge suitable for 90 sq feet room
I live in Mumbai and my room size is 90 square feet. I live on the 5th floor of a 12 storey building. The room has a french window of 6 feet by 5 feet and it faces west and opens in a balcony which is covered from only the top. Please suggest whether 0.75 ton split ac would be suitable or i should opt for 1 ton. Occupnacy will be 3 persons max.
Haresh Khemani Mar 15, 2010 10:27 AM
Lee
There are number of articles in split air conditioners at Bright Hub, just search for them at our website. You can see the link to one of the articles on split air conditioner in the lowest part of this article under the section, "Types of Air Conditioners."
lee Mar 15, 2010 4:12 AM
hai...
hai sir..can u help me about split unite operation?
i'm poor in knowlegde about split unite operation..i need to teach my student...so..i hope u can give me explanation about it.
Dazzlers Jul 25, 2009 3:54 AM
can u help me?
can u give me note about installation aircond,ahu, n maybe some pictures...if not demand u u got all this in malay version??ca u send to my email..im gonna finish my practcal report..pliz..
 
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