Fun stuff: Basic air conditions + why not to run A/c lower than 70 - General

[QUOTE=gerbile4;22126046]Yes. By passing warm air over penguins magical dust is formed which cools any oxygen it comes in contact with to absolute 0[/QUOTE] that would be pretty impractical, all your penguins would get coated in solid oxygen.

I think our old compressor died from liquid getting into it. Makes sense, since it was almost always ran at 67/68 for months on end.

You people have AC? Hell only AC I have are windows and a fan. :byodood:

[QUOTE=haloguy234;22126090]I think our old compressor died from liquid getting into it. Makes sense, since it was almost always ran at 67/68 for months on end.[/QUOTE] Quite possibly. Compressors slugging liquid do kill them, but other things could have been involved. For example, a compressor relys on a fan to cool it, among oil and cool refrigerant. The fan is the main one. If the fan can not cool the compressor it will over heat, but there are thermal overloads in place to give shutdown time to cool off. Thermal overloads do commonly get damaged though.

I always keep mine at a comfortable 76*F. Window unit.

I don't have an AC. In the summer I just run the fan on my furnace without the burner running to bring the cold basement air up. Works great until the basement temperature matches the upstairs one. [editline]05:53PM[/editline] And all this Fahrenheit is confusing me

My great grandpa introduced air conditioning and cooling systems to the soviet union :smug: which is ironic because my initials are AC

[QUOTE=Zeke129;22133166]I don't have an AC. In the summer I just run the fan on my furnace without the burner running to bring the cold basement air up. Works great until the basement temperature matches the upstairs one. [editline]05:53PM[/editline] And all this Fahrenheit is confusing me[/QUOTE] That sounds about right since the cooler air usually migrates to the lower sections of house or condo. [quote=benie]I always keep mine at a comfortable 76*F. Window unit. [/quote] Pfft you call that comfortable? Try 64

So I understand the mechanism of it now, but how is it applied? This is how the circuit flows, but what does this do? How does this cool or warm my house? It does something to the effect of powering the system, or does it heat and cool with the actual refrigerant somehow (Though it only seems like it'd be half effective then, unless properly balanced)?

[QUOTE=Lol Steve;22135094]So I understand the mechanism of it now, but how is it applied? This is how the circuit flows, but what does this do? How does this cool or warm my house? It does something to the effect of powering the system, or does it heat and cool with the actual refrigerant somehow (Though it only seems like it'd be half effective then, unless properly balanced)?[/QUOTE] It runs on the process of "Refrigerant needs to absorb heat to boil", and "Refrigerant gives off heat to cool itself and condense". The heat to boil comes from your house. Since the heat is taken out of the air, cool air is created.

rated informative

[QUOTE=Optimistic;22136222]rated informative[/QUOTE] Rated optimistic.

So it needs hotter air at the beginning of the cycle? Couldn't a compressor suck air from outside if it was hotter than 70 degrees Fahrenheit out?

[QUOTE=DarkSpider;22136966]So it needs hotter air at the beginning of the cycle? Couldn't a compressor suck air from outside if it was hotter than 70 degrees Fahrenheit out?[/QUOTE] The compressor doesn't move air, or pump it or whatever. If air is present in a refrigerant based cooling or heating system the game is over. Air fucks the system so hard sometimes that it cripples it since air contains water vapor. For example, water freezes at 32 at 14.7 psi. The metering device in a refrigerant system allows for a pressure drop. The water vapor will condense and freeze clogging the metering device making the compressor head, or output pressure raise and raise until the compression ratio gets so high that the compressor has to work way too hard to pump anymore, draws high amperage, and then usually trips off a high amperage breaker. But if you mean "If we want 70 deg air inside and its 65 outside can we suck that air in?". Well first In the common household an air conditioner will not be on when needed. In a business or a place of work, a device called an economizer can be used. This unit is put on the roof of the building with a temperature sensor in it. The unit is connected to the ventilation system. When the temperature outside goes under X temp, it shuts off the compressor and opens the vent to the economizer, allowing the cool air to flow in. If the temperature rises, the switch will trip back, allowing the compressor to trip back on and do it's job. Atleast that's how I think it works. I dunno. They basically suck in air when it is more feasible than using the compressor.

My dad just walked in the room and saw me reading this and basically told me to tell you to "Go back to class..." (He took a shit-ton of HVAC classes a while back that were required for his job) Kinda made me laugh a bit..

[QUOTE=justin1992;22137317]My dad just walked in the room and saw me reading this and basically told me to tell you to "Go back to class..." (He took a shit-ton of HVAC classes a while back that were required for his job) Kinda made me laugh a bit..[/QUOTE] Hey bro. I'm running on what's been taught to me. Feel free to have him correct me as I love to gain knowledge on the subject. Actually my shop teacher is a moron using an outdated and old curriculum that is allowing under trained students to be put out into the field. I am probably off a bit on some of this.