@@ericescuro8242 Very good vid, but, you should have shown the refrigerant as blue immediately out of the expansion valves & increasing in heat (yellowish) as it picks up heat while it moves through the evaporator coils Also, a bit about more about when it isn't economical to run the heat pump would have been good. I've lived in very cold areas & when the outside temp is too cold, the compressor is disabled & an inside heating element is automatically switched on because at some point (temp) that becomes less expensive than running the compressor & fans to heat..
Thanks very much for taking time to explain this. I am an HVAC/R student and heat pumps have been the bane of my existence for six months now. Also, I recomend the reversing valve video for anyone else who is suffering through this.
Keep at it Ms. HVAC-R and Electrical are a mystery to most humans which means there is big $$ available when failure occurs and the customer goes into panic mode.
I'm currently in HVAC class and we are on the subject of Heat Pumps. This was a very well done video and so helpful. The fact that you can see the flow through the reversing valve made it so much easier to understand how it works!! Thank you. I'll be sharing this with my instructor to share with the class.
Had mini-split system installed for my garage New England. Fantastic Summer & Winter! Very quiet and efficient. It's 12 degrees here now & this thing is quietly keeping the garage a steady temp.
I can't stop my brain from associating red with hot and blue with cold so the fact that the subcooling liquid is red makes this video really confusing for me. Could just be me though.
Red hose is the high side (hot side) so your brain association is not wrong.. The blue hose is low side or the "cold" side of the system where heat is removed. They call it "subcooling" because the refrigerant is below it's boiling point but existing as a liquid. High side expells heat which is why the color is red
It’s amazing how you explain the way it works . The boiling point I never new how or when it’s a good place for a heat pumps or a gas furnaces but seeing the boiling points now you could suggest the best thing for a costumer is .
Wow, I used to think heat pumps got energy from electricity, not the air. Motors are the only part of a heat pump that needs electrical energy? Neat how refrigerants are so easy to vaporize; the power of chemistry!
I am not an engineer. I am a nurse and I want to stop using oil to heat my house. Clearly I have a lot to learn and this is a good start. I need to know how to convert my house from oil to a heat pump.
Great selection of videos on heat pumps. Could you possibly make a videos explaining how a gas absorption heat pump works and is there a difference between a GAHP and a gas fired heat pump? Thanks.
Hi, I want to use the AC System as Heat Pump only. It will never be used for cooling. Why do the installation guys insist I have to install the Split evaporator near the ceiling? In fact I think that installing the Split unit near to the ceiling will be less efficient because it does not use convection to distribute the heat in the whole volume of the room. Additionally, the installation on top provides warm air near your head, which is uncomfortable, and the maintenance is more difficult than a split installed near to the bottom of the wall or in the middle of the wall. What do you think about it?
Only problem. In heat mode motion demomstration. You kind of confuse other with the line getting redder as it goes through the condenser(air handler in heat mode). It is rejecting heat into the air being forced through the house (coil). I know you are meaning to show the condensing of the refrigerant into a liquid. But to someone who doesn’t know it may seem like it’s picking up heat instead of rejecting. Btw how did u learn this? I went to School and grew up doing it with my pops
For a heat only air flow heat pump, why not just remove 1. The Reversing Valve, 2. The Outdoor Expansion Valve, 3. The Outdoor Fan, and just leave the 1. Outdoor Heat Coil, 2. The Compressor, 3. The Indoor Heat Coil, 4. The Indoor Fan, 5. The Indoor Check Valve? Then just recirculate the glycol water solution and let it always stay relatively warm, and then hot on the inside. Wouldn't this be more efficient, and remove half the headache? Also it should work in much colder temperatures! I think it makes more sense with these systems to have one do all heat, and another supply only cold! Then your transfer fluids could be segregated instead of a one size fits all solution. Which doesn't work in a lot of environments! It's pretty cold where I live in the Winter Time, and there are a lot of these Air Source Heat Pumps around that just stop working once it gets down to Freezing Temperatures. So they are spending the money on the Heat Pumps, and also always have to rely on an additional heat source! That has never appealed to me, doesn't make any sense now you are paying for and maintaining two completely different systems all year. Out the window goes your efficiency and your money!
thanks for your precious and valuable tutorials... the question is that in all of heat pump explanations i saw only one expansion valve.. in some model it's at indoor unit and in other models it's at outdoor unit but here i see 2 expansion valve ? is that exists in real life ?
In general I like this video. An improvement would be to only show the gases in the narrative during their rotation around the loop or have a pointer to the gas being described in the narrative as it travels around the loop. There is another significant improvement, I do believe that the gas does not have to boil in order for a heat pump to work (just makes the heat transfer more effective when there is a phase change). For instance plain air can be used in the gas circuit. No phase change is required but the size of the coils becomes much larger because of the poorer heat transfer from a gas to the outside or inside air. The phase change allows for higher heat transfer and thus smaller coil size and a more economical construction. Once when I was a plant engineer I had an ultrasonic air leak detector technician tell me he found a locker in the tradesmen's shower area in a plant that the tradesman just connected a 1/4" compressed air line to the locker to refrigerate his lunch!!! No phase change (boiling) necessary. It wasn't very efficient (poor "refrigerator" insulation) and he used lots of compressed air (I calculated thousands of dollars of energy cost per year), but it worked!!!
Nice animation. However your expansion valve operation is backwards. The valve closest to the evaporator coil (cooling or heating mode) is the one that is engaged while the other is bypassed.
Sir please make a video on the basis of Outdoor Heat pump AQUANEXA any model of ANX-09, ANX-15, ANX-35, ANX-50, ANX-75 , please sir working of it and how it delivers hot water from ambient temperature along with Heat exchanger , Compressor, 4way valve , fan , condenser fins and it's PCB connect sequence of capacitor of single phase motor and conductor for 3phase motor, please 🙏 sir Which is using R410a refigerant
Thanks for the video mate, just about to take delivery of my first BEV (Battery Electric Vehicle) which has a heat pump and was curious to find out how it works ;) I take it is a similar principle in vehicles too?
Awesome, BEV's are certainly the future. The heat pump will wor kthe same it will just use a different method to drive the compressors, usually a belt drive connected to the main motor.
Wait you said once the gas leaves the evaporator (in home) it is low press/temp saturated vapor? I thought the only time when it’s “saturated” is when it’s in the coil and once it’s on the outlet it is superheated and not considered saturated
I have a question the inside unit is it supposed to blow the air left and right or just up and down ..because the one I have I have a button that I can press who looks like it blow the air left and right but nothing move inside and there is no difference from the up and down . And to connect to the wifi did someone know how to do that it say reset the unit , I have to press the remote control till I see CF but nothing work.....
If your plan to improve this video, the cursor could be bigger and maybe a brighter Because most of us who are learning, we are not familiar with the name of parts, we can not identify as quickly where the cursor would be.
Nice Video Paul. I have recently turned on my Mitsubishi Heatpump to cooling mode and I've got it set to 16 and doesn't seem to be running really cold as last summer (I'm from NZ) and outside it don't seem to be expelling a lot of hot air. Do you think it may need looking at? Cheers Mike
The temperature process animation is incorrect in this video. Here is a correct animation: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QykwWs3L1W8.html
Please forgive an old fool but I'm having a hard time wrapping my mind around how they heat,isnt freeon supposed to be a cold liquid I cant seem to see how a heatpump ( I have one in my house) is supposed to heat up to create heat. Am I missing something I've watched your video about four times and I just cant have the AAHHHAAA moment( light bulb going off) so please explain it to me in a way that an old man,used to heating with gas,oli and wood heat. I'm sorry I'm just an old dog trying to learn a new trick. Thank you I'm sorry
Yep, heat pumps aren’t that great for the freezing temperatures. They lose efficiency and have to run soooo much to keep the temperature up inside the building. Like you said, nothing beats that blue flame beauty pumping out the BTUs.
