Automotive Air Conditioning Information Forum (Archives)
Control temperature with air conditioning
condition on 
Mon November 12, 2012 12:27 AM 
Hi everyone...............................
Air conditioning is the ability to simultaneously and effectively control the temperature, humidity, air movement and the quality of the air in a given space.
A typical air conditioning unit has four main components for the cooling cycle:
Evaporator
Compressor
Condenser
Capillary Tube
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Air Conditioning
NickD on 
Tue November 13, 2012 9:19 AM
Could be a POA valve, FOT, or variable displacement compressor in place of that capillary tube, could be a receiver or an accumulator, could be a manual or automatic climate control system. Could be a well designed system or crap, but the latter seems to be more dominating.
Then we have our governments telling us which kind of refrigerant we can use, and may not be the type of refrigerant the system was designed for.
If there a common denominator in AC systems, could be defined with just one word, "problems".
Augmenting problems, is another new word, "throwaway". Food grade aluminum is indubitably throwaway, but of far superior in quality than the aluminum components such as the evaporator, condensers, lines, and even the compressor. These components are indubitably throwaway, not like the copper, brass, and cast iron components that were used originally, that could be easily cleaned and repaired.
Catherin on Mon December 10, 2012 1:41 AM 
My current apartment grow is going to definitely require some kind of air conditioning unit to keep temps down. I'm wondering how would I go about automatically regulating the grow chamber temperature and if there are maybe any specific brands of ACs good for this. Anyone who has experience with this a response with how you do it would be awesome. Ideally id like constant 78 degree temps.
for now I only need to keep a 2x3 box with a 400 watt light cool but may eventually upgrade to 800 watts in a larger box. Preferably I would like to spend under $400 and probably cant go over $600.
mk378 on Tue December 11, 2012 8:46 PM
A small (5000 btu) window unit in the side of the box will do that. Use its stock thermostat. A useful rule of thumb is that 1 watt needs about 5 btuhr of A/C to remove.
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