What is an Inverter HVAC System?
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- Опубліковано 20 чер 2024
- In this video, Joshua Griffin share what exactly is an inverter HVAC system, and why more homeowners today are considering having one installed in their home than ever before. Being the future of the HVAC industry, Joshua talks about the origins of the technology and why he considers Daikin the best at producing HVAC equipment to his customers. Lastly, Joshua discusses the misconception homeowners may have when comparing HVAC systems and how it can be confusing when comparing inverter, VRF, VRV, and variables heating and air conditioning technologies.
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---------Chapters-----------
0:00 Intro: What is an inverter HVAC System?
0:53 Single-stage, multi-stage, inverter systems
1:12 Communicating vs Noncommunicating
1:27 Comparing HVAC ratings
1:54 Saving energy
2:11 Variable speed may not mean inverter
3:03 Contractors fighting change
3:24 The future of HVAC in America
4:31 Different types of Inverters and Daikin
5:43 Rebates and Incentives
6:00 Outro
#hvac #efficiency #inverter - Навчання та стиль
I did a little reading and just bought a dual inverter window ac (I know, window ac) even though we have a new roof top unit; Arizona. Will install in a day or two. It's over 110 degrees. Thank you for the explanation.
100% accurate... Had no idea what the difference between inverter and variable speed... Had five different companies come out and none of them would suggest going with an inverter system, saying they were just overpriced/ overhyped equipment.
What is your opinion on the Bosch BOVA15 inverter coupled with the single stage air handler? I cant make sense of why they would pair an inverter with a single stage motor.
An inverter heat pump takes incoming a/c current and runs it through a bridge rectifier to create a very smooth DC current, that DC current is then put through a simulated 3 phase AC inverter which is can be started without start windings and its speed can easily be controlled. This is why a 2 stator generator that produces dirty AC can be used on an inverter, it is going to be rectified anyway.That is the compressor, the condenser fan is controlled differently. Some are DC being powered off the rectifier, some are just multi speed AC and others are simulated 3 phase just like the compressor. Hence All inverters are variable speed but not all variable speeds are an inverter. There are units, particularly the ones that run off of solar power that are DC and actually use a DC compressor. Inverters today are very good, surpassing 95% efficiency but even that 5% is too steep a loss for solar powered units. I think the biggest hurdle for manufacturers to go to all inverter units is the simple fact they spent the last 35 years tooling up for scroll compressors. This took quite a while as they were still selling piston style compressors in 2010 and maybe later. They are not having any success at varying the speed of scrolls which makes them unsuitable for inverter drive motors. Now rotary compressors are being used, the rotary is not new, they have been using them in refrigerators for decades but for some reason not in AC systems. So now they will have to retool to build rotary compressors. Hopefully with the new CNC machinery available today it doesnt take 35 years to do this. Even the best vapor injection units found on the Mitsubishi are rotary.
What about natural gas condensers instead of electric?
The issues to overcome with more complicated/higher seer/more efficient systems: The cost has to make sense- upfront cost and maintenance cost. Two years ago a friend bought a 3 ton Lennox split system with a XC16 2 stage cool 16 seer A/C and a SL280V 2 stage heat variable speed gas furnace for $8000. Great deal, but if she bought the XC 25 (22 seer) A/C, then it would’ve been $14,000. Maintenance cost are way higher on the highest seer rated A/C because of needing to replace the computer circuit boards and other expensive parts after a period of time.
Technicians need proper training to install/set up/program the systems. They didn’t even program her gas furnace to put out the right amount of airflow. Left it on factory settings. There are 12 speeds for cooling and 12 speeds for heating. Need to have Wi-Fi in the house for communicating systems, not everybody has it.
Wrong. You don't need Wi-Fi for communicating systems. Does it help? Sure but you don't need it. Wi-Fi is just for people who want to run the system off their phone or laptop.
@@jeremymorgan7199 Her system initially included a fancy Wi-Fi thermostat but she did not want to put in her user ID or password and wanted a simple or basic thermostat, and they were able to do it. But her system is two-stage only. What if I was buying the Lennox EL 18XCV with the Lennox S30 thermostat or something similar. Or the EL23XCV with the S40 thermostat or similar. Those are variable capacity systems. Could I use a basic thermostat with those? Or if I use the recommended thermostat, you’re saying I would not need to be connected to Wi-Fi? I currently do not have Wi-Fi in my house. I read a lot of complaints about those higher end Lennox thermostats. Thanks
@@michaelcinaz you only need Lennox S30 thermostat when it's an inverter system. They recommend using them on all their equipment bc setting up the programs is much easier but if it's just a 2 stage system you can use any 2 stage t-stat you want. But you do not need Wi-Fi to run any system.
Nice product knowledge delivery
Thanks pal
Hello Joshua; great explanation; I'm considering replacing my existing system with a 3 ton HP about 16 SEER.- 2 years ago I purchased a Panasonic Microwave oven and supposedly has inverter technology. It has no compressor, so I figured they used the word as a "silly buyer magnet". Buyer beware!
It actually uses the same inverter as your phone charger, a switch mode power supply.
Older and cheaper microwaves use a large iron transformer to generate the 4kv needed for the magnetron, the inverter type is a lot lighter weight and more efficient.
@@sciencetestsubject Thanks; where did you learn all that stuff? I didn't have a clue!
I've always wondered why our USA AC electric doesn't get "inverted" to DC at the point of entry for residential. DC current is a constant sine wave and more efficient with motors in general.
I also say the same with the Cable and Satellite industry, why not put the "box" at the point of entry of residences and then let the tuners that come with the TV's or other devices use their own electronics to display the many channels. I can think of many reasons that is reasonable but one is saving the power each TV box must use because each TV location has to have the decryption of the signals and for that, a lot of these boxes are using 100 watts each.
I do like the idea of DC operated HVAC as the efficiency is much better however, where is the natural gas condenser these days? Those seem to be even more efficient in cost to run.
Also, we need to look at the cost of maintenance for these inverter systems....A $200 AC 220v blower motor is about $1,200 for inverter type. Compressors are more expensive too and then there are all of the "electronics" with inverter systems that will fail along the way and they are all proprietary and expensive vs. "universal" parts inexpensive.
Which inverter system would you put in a new build in Charlotte NC? My builder's HVAC has recommended the Bosch inverter system 20 seer or for $3k more the Rheem RP20 inverter system? I asked for the inverter variable speed instead of a 2 stage heat pump system that he originally quoted.
If you want a true, communicating inverter system, then you should go with the Rheem. Bosch is an inverter system, but it does not have communicating technology
@NewHVACGuide is there any more efficiency/better performance with the communication of the thermostats?
@@stevenporter7969 check out this video on that exact question 🙂
ua-cam.com/video/DQi85LK-3do/v-deo.html
I guess this applies to those window units that are inverter AC's too.
Enjoy your channel
Thanks pal!
Hi Josh, love your channel! You mentioned how inverter systems can meet requirements for Federal tax credits, etc. Just wondering your thoughts on why the Daikin FIT fails to meet the EER2 requirement for the 2023 tax credits. I'm still planning on purchasing a system because its so much less expensive than other inverter systems, but it would have been nice to get that fed tax credit! At least it does qualify for a rebate with my local utility.
I actually just attended a class on that subject. They talked about how it does not meet those requirements, but with the rebate that it comes with from your dealer among other programs that are exclusive to the dealer on the behind the scenes, they should be able to give you a price competitive enough that you may consider the Fit over one of the systems that do qualify for the program
@@NewHVACGuide HaHa! that was my conclusion; getting a $1100 rebate, 12 yr parts and labor.... I calculated it would take me over 10 years to make up the extra cost of a more efficient inverter system even after adding in the $2000 tax credit. I was really just curious as to why the Fit has such low EER2 numbers; I'm thinking it has something to do with the outdoor coil efficiency (side discharge), but that's just a wild guess.
I think the problem right now is most manufacturers see inverters as a reason to charge way more than the standard system even though it might only cost 5-10% more to make. To its credit, Daikin Fit isn’t too pricey, but all the big American brands treat inverters as a Lamborghini
When they become more widely accepted would be the time to look at these. Who cares what other countries are doing? Normally lagging in every measure. More sophisticated systems are more expensive & a lot more costly to repair, normally never getting enough saving to justify the cost!
Are there any inverter systems that would work with a Nest based system? The communicating thermostats are outrageous. As I have zoned system, that twice the outrage.
Nest suck but yes there's inverter systems that will work with nest. The Goodman 20 seer inverter is compatible with any thermostat including nest
Thanks for the information. I will look at it. I am confused as to hate for the nest. I have three 2nd Generation Nests and they work. Two operate a 20 year old zoned system (thinking about replacing this) . The other runs a mismatched system. It all works. Why should I hate it? What am I missing?
@@sheldonoppenheim8724 they have smart learning technology that can interfere with newer systems. If you have older systems and like the nest. Keep it. But If you upgrade to inverter technology you may have to upgrade thermostat as well
Thanks for info. Point taken. As the mismatched system is still going and my wife insisting that all works with one app on her phone, I am stuck. However based on your info and Josh's input it's not so bad. Goodman/Amana, Bosch, and Allied all have inverters that could work. Time to get prices.
For me less electronics the better I'll go for the mechanical system period...you will save money on electric...but spend 10 times more for repairs and maintenance.
That's just not true. Most of these systems come with good warranties to back it up
Wrong.
@Jeremy Morgan no it's true inverter systems last longer because of smoother operation. Manufacturer warranties back it up aswell
@@alberto4991 I wasn't replying to you my bad lol maintenance on inverters are often easier imo. You can run all your test through the thermostat or app and if installed properly they'll last.
I used to like you, but i like my 6.7l coal rolling 8 mpg truck better. I will also try to keep the most energy consuming a/c system available. The day i sacrafice being comfortable over "climate change" nonsense will be the day im 6 feet under.
You may end up in a place which is much hotter than that! lol
@@bobboscarato1313 for not believing in a fake climate crisis. Thats not biblical at all. The ones who will end up there are the propogandist and supporters who will stop at nothing in the name of "climate control". Marxist will not end up in heaven i assure you. That is Biblical.
I have to agree...its not reasonable to move away from reliable systems in order to be "climate change" friendly. Technology has to catch up first but it seems that all of the big corporations want the public to foot the bill for R&D along the way vs. wait until they have it fully figured out then manufacture and sell it.
@@Garth2011 exactly. I dont mind changing with the times, but when its forced upon you because of something some poeple, not even the majority think, is when i take issue. I do like these inverter systems, but theu are much more complex which means you know what...
I’ve got a video that will debunk this thinking coming. More energy consumption doesn’t equal better comfort 🙂
Also, I did this video on my 6.7 a year ago….
ua-cam.com/users/shortsZc3S1AmD56s?feature=share