⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset
@irshadakhtar22905 жыл бұрын
I am big fan of your work and it is really appreciable
@jollyscaria19222 жыл бұрын
Heat pump is good
@PosiP2 жыл бұрын
very good video for the 4 way valve
@damonjenkins21853 жыл бұрын
Gotta love it how a reversing valve is driven by a tiny reversing valve
@jollyscaria19222 жыл бұрын
Tankyou welcome
@jessehndz31245 жыл бұрын
Thank you so much, great help! I'm currently going to school for HVAC and this video helped me understand the Reverse Cycle better...
@ch1p0lte484 жыл бұрын
Have you graduated
@FerralVideo3 жыл бұрын
That's so neat that your four port reversing valve has a tiny four port reversing valve of its own!
@sachinpawar63395 жыл бұрын
One like is not enough for this video.... Extremely helpful for total beginners.. thank you soo much.
@glenguzman03837 жыл бұрын
Hello, im an hvac tech.here at saudi arabia. Thank you so much for this video.. it helps me a lot understand bout heat pump. Since in the philippines we didnt use that on airconditions. God bless you guys for helping and.sharing more.info on us.
@EngineeringMindset4 жыл бұрын
Arabic version here: kzbin.info/www/bejne/qnq3p4drm8yVg9E
@VergilArcanis4 жыл бұрын
for anyone having to Braze/solder in Reversing valves, the U-bend inside the reversing valve is made of nylon, for the most part
@gencimurthi79016 жыл бұрын
The videos in general are awesome and for school purpose are good too. The mistake in changing from hot to cool and the slide on the reversing valve doesn't move at all was a little bit confusing but I got understand and I also see some comments below that mentioned that. If you can improve a little bit more would be interesting for all hvac classes ON. Thanks.
@abdelrahmanalhayek18697 жыл бұрын
i think there is a small mistake in the simulation < that in cooling the moving body stay at the same position while it,s should move to the left and allow the refrigernat to go to the condesnser
@EngineeringMindset7 жыл бұрын
Hello, yes, I did apologies in the video for the mistake. Well spotted though you were paying attention to detail, I like it.
@ChileVerdeDavid2 жыл бұрын
@@EngineeringMindset it's the whole principle of the video. You may as well have not made the video
@djdonkeydong1335 жыл бұрын
I'd like to compliment you on your great resource. This was a great learning aid 👍
@collinsogalloh83574 жыл бұрын
Thank you bro ..from Kenya really enjoyed the tutorial
@jeetmondal83887 жыл бұрын
This video was wonderfully educational!
@albertoreyes92873 жыл бұрын
ts so helpful to learn just the way the reversing valve works. it allows to reverse cycles for both heating and cooling. The way it works the reversing valve it has two insede slide valves that it all depends what your calling for (heat or cooling)its going to close a side of the valve and open the other one closes.
@acrepairnearme6 жыл бұрын
Really helpful video for understanding. Thank you 🙏🏻
@justinavery40479 ай бұрын
Thanks for this. I was curious how my countertop icemaker so quickly drops the ice and came here. Now I know 😊
@wb31612 жыл бұрын
Excellent video. I knew it reversed flow to change from heat and cool but had know idea what made it reverse. Thanks i doubt I’ll need it but interesting either way
@MrPhotographer77 Жыл бұрын
Thank you for the explanation. Very good video. Very informative.
@STEINYY3 жыл бұрын
Very well made mate! When I found a job I will defiently give you that coffee you been thinking about.
@Loopyengineeringco2 жыл бұрын
Recently one of these failed in our 6 month old Mitsubishi Ecodan R32 ashp. The whole outdoor unit needs to be replaced, as these valves are brazed into the pipework and can't be repaired easily in situ. Very interesting video, thanks!
@rafaetkhanrk64752 жыл бұрын
The Engineering Mindset good performance
@alak30735 жыл бұрын
Thank you very much please keep the videos up
@nicklaskent32893 жыл бұрын
Thank you for this explanation. This will definitely help me understand my Ground Source Heat Pump system design!
@sanduinjudurtnasan9469 Жыл бұрын
Great!!! Thank you for your detailed explanations. I want to join your team. What shoul I do?
@musakavalci94704 жыл бұрын
Excellent vid and simply explained
@peteranand62546 жыл бұрын
Hi.. Thanks for the great explanation on heat pump....What can we do in case if we use distributors on the evaporator? How the flow will be reversed correctly as there will be leads connecting the evaporator and expansion valve? I would like to know the set up for the higher capacity units. Looking forward to your response.
@thirurajah16 жыл бұрын
very very help full thanks
@davidbenefiel92893 жыл бұрын
Thank you. A great video.
@amameb83133 жыл бұрын
Hi please I want to know how can I rectify leaking in the coil of the evaporator in the central AC unit Best regards
@domelos3C11 ай бұрын
The indoor unit freezes during the heating function. Everything is fine in cooling. Is the problem a blocked four-way valve?
@StoyanKostadinov2 жыл бұрын
Thank you so much! Great video! Really valuable information!!! 😊👌
@goodcruisin14 жыл бұрын
This was a great explanation... I've been dealing with a mini split I just installed and the fan on the outdoor unit does not kick on allowing the unit to overheat and shut off. BUT... when I power off the inside unit... It comes on for about three seconds...I can't figure it out
@BritishBulldog43 жыл бұрын
Very good video, thanks!
@lukelee60785 жыл бұрын
Thank you :)Please keep uploading your wonderful videos.
@seemypaints2 жыл бұрын
Thank you for the Information & Good quality video about the Reversing Valve Cycle. It would be much Nicer if you can move the mouse Slowly because Specially for beginners to put attention in what you're saying and try to follow up with the mouse moving to fast It's Really difficult to Focus on it, & also the mouse Color would Nicer if you can change the Arrow to a Black color sense must the time the background it's White. Thank you again !,
@Ecksterphono2 жыл бұрын
So ice makers use this as well. When it goes from building ice, once the desired ice size is met on the evaporator fingers or trays. The reversing valve switches from freezing to heating the evaporator momentarily to drop the ice off the fingers or tray into the bucket or ice catch tray
@samsyam94844 жыл бұрын
Great tutorial.... thank you ❤️
@earthsign286 жыл бұрын
Helluva illustration mate 👌🏽
@mdjunaid57503 жыл бұрын
Is there any video of chilled water pump designing and pump horse power calculation
@sustainablepaths20157 жыл бұрын
Absolute class! Paul can you make a video on ELECTRONIC EXPANSION VALVE ,which is used in VRF SYSTEM
@EngineeringMindset6 жыл бұрын
Here you go: kzbin.info/www/bejne/jnnXg3ufgK6me7c
@EngineeringMindset2 жыл бұрын
New VRF unit video here:➡️ kzbin.info/www/bejne/apqUiZqZhZano9k
@8joh582 жыл бұрын
Hi Bryan how r u! I got questions I do get it hot gas come from discharge through capillary to shift reversing valve but where is suction line gas come from? Because I see the flow in video suction gas is not come from common suction line, low gas flow back to common suction! Where low gas come from? It’s doesn’t look like to from common suction? Thanks
@williamcurtner49842 жыл бұрын
can i share this video with my class room ?
@pankajkhare832 жыл бұрын
Good information, thanks
@dailygrindism5 жыл бұрын
Super great video thank you!
@AsmaKhan-ve5kg10 ай бұрын
Hi. I i need to selct a reversing valve for y heat pump, what are the key paramezters beside the capacity. I check that the capacity requirement is fulfilled however I have very high velocity in suction line (during heating) and the datasheet specification of 4-way valve does not mention any velocity but the pressure ranges (which also meet the system requirement)
@IMRANSHAIKH-nx1ry Жыл бұрын
What is the position of solenoid in both cooling and heating mode?
@4BradRichardson2 жыл бұрын
Can the valve be shifted during compressor operation without damage
@sunilwijeratne16204 жыл бұрын
Thanks a lot
@wmhvac-r28267 жыл бұрын
Woe great explanation
@Ceesiseenluldieditno5 жыл бұрын
Great movie, thnk you so much for this
@GogoGogo-xf8uf6 жыл бұрын
Great stuff 👍👍👍
@brandynwebb3 жыл бұрын
Hi, In cooling mode, when the cooling cycle ends and the compressor is turned off, is the reversing valve typically held on (so that it doesn't slide back under the residual pressure) or is it typically disabled (open circuit/power down) along with the compressor? I.e., is the reversing valve solenoid typically on all summer, or just when the compressor is active?
@mikeyjason935 жыл бұрын
Thank you! Good video
@jollyscaria19222 жыл бұрын
3line down center comper1st 2nd3rd outwr top compersor line revas line .
@muhammadshoaib-qs1xz6 жыл бұрын
Thanks sir
@iranforever25465 жыл бұрын
Thanks
@ImtiazAli-qs4uo7 жыл бұрын
Great video .... One question ... there would be a great heat exchange inside the reversing value as two different temperature fluids are made to pass side by side... ? what do u think ???
@EngineeringMindset7 жыл бұрын
I think you're right
@mariusbotha54186 жыл бұрын
Marius Botha 1 second ago No, think carefully.... there is no liquid (other than a very minute amount of oil present) only hi pressure vapour. I f you have hi pressure liquid there then you are in great danger or the piping on the unit is very very wrong.
@ericg.magnaye68997 жыл бұрын
thank you for the video.. thumbs up bro...!☆☆☆
@bigdave66464 жыл бұрын
Should these make noise when shutting down?
@marksmith62595 жыл бұрын
In relation to the compressor at what height should this component be at? I ask this because most small systems they are above the level of the compressor, and there is a chiller which this component keeps failing where it's in line with the bottom of the component. Another question in relation is because it's low in the system would oil not get in and somehow block operations.
@JohnLastName2 жыл бұрын
what happens when a check valve misfunctions? I am having an issue in my home in the heat cycle only where when the unit cycles off, I get an intermittent hydraulic hammering for maybe 5 seconds. Only during heat, and most online sites I am reading point to a faulty check value on the indoor unit. What is going on in this instance?
@kiddsheppard3 жыл бұрын
Great content !!
@rando_webb87043 жыл бұрын
So the O wire from the out door units control board would run to that cilinoid, and is energized when the T-stat is set to cool. If it is set to cool and the O wire is pulled the unit should switch from cool to heat. And if that doesn't happen the reversing valve has failed. Sorry, if this seems like I'm teaching, I'm actually trying to get the diagnosis process down in my own head so I can figure this out for my costomers.
@bahalrefrigerationtech3975 жыл бұрын
Thks
@kazimir80866 жыл бұрын
Is it correct, I could use the cold of the night for cooling and the heat of the day for heating, with one device (Reversing valve)? I'm fairly new into this.
@EngineeringMindset6 жыл бұрын
You new a few other components and some controls but yes. You can use this to provide heating or cooling in almost any weather. Even when cold out you can use it for heating
@ujjawalsharma29983 жыл бұрын
Damn good thnq🙏
@muhammadjahangir52484 ай бұрын
Good
@tabridkala40244 жыл бұрын
hi dear , one mistake in video in cooling mode (( start at 06:48 ))__4 way valve loop for cooling no chang in video from heating to cooling ,, please repair this mistake because your video very nice easy
@jamesrockford51456 жыл бұрын
What would be the ratio of refrig. to gas coming out of the TXV in the heating mode. Thanks,...... great demo.
@jesusmeda73826 жыл бұрын
James Rockford a
@fouadbenzahra95293 жыл бұрын
Remarkable 👍
@ErikaAndrusenko9 ай бұрын
If its a TXV X-pansion Valve then where does the bulb belong? Check valves? Far away Tubes? Where?
@239ubaidullahkhan713 күн бұрын
It's reversing valve for both cooling and heating, txv regulates correct flow of refrigerant and maintains superheat
@keithadolphus99452 жыл бұрын
I notice the slide inside the reversing valve for cooling didn't move. Now that confused me. The right side should be uncovered
@Faruk32416 жыл бұрын
Nice
@rohmotullah44564 жыл бұрын
Nice video
@laskasase3 жыл бұрын
My Gree Hansol does the defrost many times a day even when there is not even a smallest sign of ice on the coil. Why it is doing like that? Please help!! When the outdoor temp is around 3-4 C° everything is fine. It can run all day. If the outdoor temp drops at -1- -2 C° it does that 10-15 times a day, but no sign of ice on the outdoor unit.
@skyrunner10006 жыл бұрын
There is a mistaken in the drawing in "cooling mode". The black moving part in the reversing valve should be drawn to the left site in stead of being in the right side, what is not so in the drawing. So it is advised to do this, to better understand the drawing. Nevertheless the gasflow side is correctly indicated.
@EngineeringMindset6 жыл бұрын
Thank you for the correction. We did apologise during the video for the mistake and many people have also commented this in the comments section already
@ItchyDingo3 жыл бұрын
2:00 mind blown
@CT-vm4gf5 жыл бұрын
So it’s really a “heat pump” whichever direction the refrigerant is flowing? It’s just that the condenser and evaporator are swapping their tasks over in the heating mode. An air conditioner and heat pump are two names for one device. A reverse cycle capable air conditioner?
The problem in a ac with reversing valve when it got old some dirt from burnt oil from compressor clogs the pipe and gives a hard time for it to move and soon without you knowing it will get spoil
@STEINYY3 жыл бұрын
Hey Paul, where your from mate? New Zealand, Australia?
@balkrishr35727 жыл бұрын
Sir,this kind of valve,can I use for immediate defrost the cooled plate about -25*c.Where can see this inter market?Any sugg
@EngineeringMindset7 жыл бұрын
you should contact a supplier such as danfoss they will be able to better advise
@roslja3 жыл бұрын
New valves are "bistable", the coil never stays energyzed, power impulse activates it instead. They are not spring loaded.
@IceyJunior5 жыл бұрын
Can you talk about VRF systems in detail?
@EngineeringMindset5 жыл бұрын
Hey icey junior. It's been a while. We had to remove our VRF series but we'll republish asap.
@IceyJunior5 жыл бұрын
The Engineering Mindset Alright. Looking forward to it!
@EngineeringMindset2 жыл бұрын
New VRF unit video here:➡️ kzbin.info/www/bejne/apqUiZqZhZano9k
@auqiz93 жыл бұрын
Hello. Why my heat pump only blows hot air inside and cold air outside.
@austincline84553 жыл бұрын
Seeing as I have 8 minutes and 42 seconds of experience on the subject, you should trust me when I say your reversing valve solenoid is failing to energize when a call for cool is issued by your thermostat. I don't know what sort of unit you have but it could be a simple as replacing a capacitor. Best thing to do is call an HVAC specialist to troubleshoot the valve.
@SNKHAN435 жыл бұрын
How much ton to stars in chiller system
@AlamKhan-fi1dh6 жыл бұрын
Advie Dx cawn air handling unit instaling and pipeing video uplod
@mariusbotha54186 жыл бұрын
No, think carefully.... there is no liquid (other than a very minute amount of oil present) only hi pressure vapour. I f you have hi pressure liquid there then you are in great danger or the piping on the unit is very very wrong.
@mariusbotha54186 жыл бұрын
sorry, wrong post....
@hasanbilal87444 жыл бұрын
Parfact
@ratanrathu2305 жыл бұрын
How to work check valve
@luisbrenes70397 жыл бұрын
You are missing the accumulator before the compressor
@EngineeringMindset7 жыл бұрын
Luis Brenes there are many parts missing, it's just simplified to make it easier to understand the basic operation
@usmanrana867 жыл бұрын
The Engineering Mindset could you kindly please make another vdo(s) for advance learners with actual cycle comprising of every possible components. Thank you. impeccable work as always!!
@bouzidoussama75463 жыл бұрын
8.41m i understanded what i didnt in 4year
@hamzarajpoot17732 жыл бұрын
Correct your animated Diagram ....Note your reversing valve behaviour
@SalmanKhan-kk9fl6 жыл бұрын
cOOLEST VIDEO EVER
@zafforthegreat89953 жыл бұрын
Way too confusing of an explanation. Could have been better.
@SirDella3 жыл бұрын
It's really easy to understand and well explained, I don't know what you are talking about.
@steve87ish6 жыл бұрын
meow
@Mike-yh8tv7 жыл бұрын
Thanks very helpful....you explained it better than my professor...have increased my knowledge ever since I have subscribed!!! Keep them coming!
@EngineeringMindset7 жыл бұрын
Hey Mike, Glad we could help and you enjoyed. Congrats on first comment too!. I see from your vid you've got a lot of boilers and calorifiers in your building. Check out a company/product called circosense.com, it would save your building a good amount of energy & $$$
@Mike-yh8tv7 жыл бұрын
Thanks for the inf...I will relay it to my management...