Air Conditioning System Basics hvacr how does it work
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Date: 2023-11-17
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Comments and reviews: 29
SpybottleMessuage
How it is HARD to understand!
My knowledgre of the refrigerators - was as like that, the pressed refrigerant got expanded, and that cools it down till the low temperature. The blower is needed to cool down the compressor, which got hot from the pressing the refrigerant till the high pressure.
But some refrigerators may have no compressor. The small kind may have the only heater. That makes the refrigerant hot, and it changes its condition from the liquid into vapor, that will press into small hole of the valve into expanded camera, where the expansion will make the cold pipes which will be cooling down the freezer part of refrigerator. But after, the cold vapor proceeded into heater in the fluid form because under the pressure its boiling point became in low temperature.
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How it is HARD to understand!
My knowledgre of the refrigerators - was as like that, the pressed refrigerant got expanded, and that cools it down till the low temperature. The blower is needed to cool down the compressor, which got hot from the pressing the refrigerant till the high pressure.
But some refrigerators may have no compressor. The small kind may have the only heater. That makes the refrigerant hot, and it changes its condition from the liquid into vapor, that will press into small hole of the valve into expanded camera, where the expansion will make the cold pipes which will be cooling down the freezer part of refrigerator. But after, the cold vapor proceeded into heater in the fluid form because under the pressure its boiling point became in low temperature.
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DrZ214
I had to watch this twice. I think you shoulda focused on the compressor more, because this is extremely confusing. The compressor is actually making the fluid HOTTER. The key to this is it has to be an adiabatic process. That is, no heat is gained or lost. But the temperature does change. So yeah difference between temperature and heat, very confusing unless you already know thermodynamics.
If you just heated it with an electric heater, thats a huge waste and doesnt make any sense. Thats adding thermal energy. If you compressed it, the temp goes up only due to adiabatic compression, so no thermal energy is gained. This is why when it cools at the condenser, the net thermal energy is LOWERED, cuz it ddnt even gain any thermal energy at the compressor.
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I had to watch this twice. I think you shoulda focused on the compressor more, because this is extremely confusing. The compressor is actually making the fluid HOTTER. The key to this is it has to be an adiabatic process. That is, no heat is gained or lost. But the temperature does change. So yeah difference between temperature and heat, very confusing unless you already know thermodynamics.
If you just heated it with an electric heater, thats a huge waste and doesnt make any sense. Thats adding thermal energy. If you compressed it, the temp goes up only due to adiabatic compression, so no thermal energy is gained. This is why when it cools at the condenser, the net thermal energy is LOWERED, cuz it ddnt even gain any thermal energy at the compressor.
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Winds
There's a capacitor. Most often failed part. Luckily, it's right there. Downside, i think the outside unit could stand better screening around the fan. I'd mentioned to my friend the service guy, that youll get scalped if you don't put your hair back right (down the back of your shirt in a ponytail) when dealing with any fan.
Machinery ain't going to stop for you. Never forget that.
A woman once did that by a car, and it was bad. They showed you on a mannequin. Ohh. No joke.
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There's a capacitor. Most often failed part. Luckily, it's right there. Downside, i think the outside unit could stand better screening around the fan. I'd mentioned to my friend the service guy, that youll get scalped if you don't put your hair back right (down the back of your shirt in a ponytail) when dealing with any fan.
Machinery ain't going to stop for you. Never forget that.
A woman once did that by a car, and it was bad. They showed you on a mannequin. Ohh. No joke.
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Gulshan
QUESTION for those who understood video (coz im confuse a bit)
When we charge refrigerant in any basic split or window ac. through suction line with unit ON. we hold the refrigerant Can/cylinder upside down. so that refrigerant can be charged as liquid. then why compressor doesn't get damaged?
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QUESTION for those who understood video (coz im confuse a bit)
When we charge refrigerant in any basic split or window ac. through suction line with unit ON. we hold the refrigerant Can/cylinder upside down. so that refrigerant can be charged as liquid. then why compressor doesn't get damaged?
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CEmanified
This is a good overview but the compressor usually discharges to the top of the condenser and the vapor will condense to a liquid in the bottom few rows of the condenser. I know the graphic looks cleaner the way it's setup but I feel like it's a little confusing.
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This is a good overview but the compressor usually discharges to the top of the condenser and the vapor will condense to a liquid in the bottom few rows of the condenser. I know the graphic looks cleaner the way it's setup but I feel like it's a little confusing.
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suresh
I have a question! How come the condenser unit can change the refrigerant from gas to liquid? As you said before refrigerant boiling point is -40degC so by forcing air over the condenser will still keep the refrigerant in vapour state?
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I have a question! How come the condenser unit can change the refrigerant from gas to liquid? As you said before refrigerant boiling point is -40degC so by forcing air over the condenser will still keep the refrigerant in vapour state?
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este
This is a type of heat exchanger with a coating applied for the only purpose of dehumidifying, or drying, the air stream before it enters the home. What is it? Can somebody help me with this question?
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This is a type of heat exchanger with a coating applied for the only purpose of dehumidifying, or drying, the air stream before it enters the home. What is it? Can somebody help me with this question?
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Andy
Another 1st class production, easy to understand, and, in plain language. Im going to pass this on to our younger trainees, thanks.
By the way, R22 colour is green, R410 is pink in NZ.
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Another 1st class production, easy to understand, and, in plain language. Im going to pass this on to our younger trainees, thanks.
By the way, R22 colour is green, R410 is pink in NZ.
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Melwin
At 0: 50 you have clearly explained the basic principle of refrigeration which is unknown to most people. This is the key answer to the question how the refrigerant is cooled.
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At 0: 50 you have clearly explained the basic principle of refrigeration which is unknown to most people. This is the key answer to the question how the refrigerant is cooled.
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Brad
Before, we used freon 12 &22 w/c were detrimental to our Ozone layer, you presented these different types of refrigerants, are these refrigerants are Ozone friendly? thank you.
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Before, we used freon 12 &22 w/c were detrimental to our Ozone layer, you presented these different types of refrigerants, are these refrigerants are Ozone friendly? thank you.
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NappyHairedGod
I'm currently a student at a trade school studying for a career as an electrician, and i will be sticking with it, but i think i might look into hvac one day
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I'm currently a student at a trade school studying for a career as an electrician, and i will be sticking with it, but i think i might look into hvac one day
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Daverr
Your explanation of the thermostatic expansion valve is backwards. the temperature sensing bulb pressure will open the valve when superheat is too high not close it.
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Your explanation of the thermostatic expansion valve is backwards. the temperature sensing bulb pressure will open the valve when superheat is too high not close it.
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jc
I wanted to learn the basics of an AC for quite some time and this was perfect, please if you could do a video about the electric circuit of an AC that would be great
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I wanted to learn the basics of an AC for quite some time and this was perfect, please if you could do a video about the electric circuit of an AC that would be great
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freshgino
Yo paul. in addition to your AMAZING graphics - can you show us more images of what the actual part or component looks like as you start to talk about it
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Yo paul. in addition to your AMAZING graphics - can you show us more images of what the actual part or component looks like as you start to talk about it
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Carl
but what will happen if the refrigerant gas is lost? or
the refrigerant liquid is lost? or if there's no refrigerant in the pipe will it still cool?
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but what will happen if the refrigerant gas is lost? or
the refrigerant liquid is lost? or if there's no refrigerant in the pipe will it still cool?
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On
your lectures are fascinating. i have learnt 90% of hvac from your videos. please make video about the differences between a simple Ac vs an Inverter Ac
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your lectures are fascinating. i have learnt 90% of hvac from your videos. please make video about the differences between a simple Ac vs an Inverter Ac
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Darem
Burning question for you: can the temperature at which the refrigerant boils post the expansion valve be controlled? say at -5 or -10 or -20 degC?
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Burning question for you: can the temperature at which the refrigerant boils post the expansion valve be controlled? say at -5 or -10 or -20 degC?
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Shuaib
Good video for learners. As an Instructor in Airconditioning & Refrigeration, i would advice to correct spelling. ie. Airconditioning.
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Good video for learners. As an Instructor in Airconditioning & Refrigeration, i would advice to correct spelling. ie. Airconditioning.
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Anon
Now I know all the basics of Air Conditionig!
Great video, despite missing that one detail it covers every other detail beautifully.
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Now I know all the basics of Air Conditionig!
Great video, despite missing that one detail it covers every other detail beautifully.
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Edwin
At 6: 09, as superheats increase, shouldn't the TXV opens more to allow more refrigerant into the evaporator? Please clarify.
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At 6: 09, as superheats increase, shouldn't the TXV opens more to allow more refrigerant into the evaporator? Please clarify.
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Daniel
This was great. I knew it worked based on the expansion of a refrigerant, but this really brought all the pieces together.
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This was great. I knew it worked based on the expansion of a refrigerant, but this really brought all the pieces together.
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Jason
the evaporator and the condenser. left or right, in one scene it is on left, then it switched position, a bit confusing.
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the evaporator and the condenser. left or right, in one scene it is on left, then it switched position, a bit confusing.
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Jayke
Great video information
PLEASE MAKE VIDEO INFORMATION FOR CONDENSING UNIT, PARTS FUNCTION, AND SEMI HERMETIC PUMP,
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Great video information
PLEASE MAKE VIDEO INFORMATION FOR CONDENSING UNIT, PARTS FUNCTION, AND SEMI HERMETIC PUMP,
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Goth
the damage exaggerated part made me laugh. lol
It's like saying this is a joke to those r/wooosh-able people.
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the damage exaggerated part made me laugh. lol
It's like saying this is a joke to those r/wooosh-able people.
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HVAC
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
HVAC
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
HVAC
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
HVAC
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
HVAC
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
i want to make a attention on it pls sir explain it you know sir on one can explain scada & dcs batter than you
reply
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