How To Convert Your Air Conditioner To A Dual Fuel Heat Pump

[@scoobtoober2975]

Dave I just put this in and 60k furnace 2 stage. Oh is it quiet compared to old Goodman furnace blower. And old Payne ac. That one hasn't blown cold for 9 years we've been here. In theory 30% electric savings for this vs 10 seer old under charged unit. I pray i did the install right. 420psi high pressure test. 270 micron vac hold for 20 min. I was shaking in my boots the whole time. Start to finish part time 9 days.

[@diyhvacguy]

Awesome sauce! Thanks for sharing

[@avsararas]

You know you are the best. The information you share here is beyond anything. Keep up the perfect job!

[@diyhvacguy]

Thank you so much! That means a lot to me 🙏🏻

[@Honestandtruth007]

​@@diyhvacguy I will appreciate it if you can answer my One question.👍 When R410A phase Out in 2025 for the New Refrigerant,.... Can we still install R410A system Or Not ❓❓

[@CountryFarmBoyUSA]

Been wanting to do this after hearing about it a few years ago, great video.

[@joecooksey4331]

You are a threat to many HVAC contractors because you educate the public. Here's why. This applies to many trades and not just HVAC. Let's focus on HVAC, though. You're average, but not all, HVAC guy prefers an "uneducated" consumer. Let's say your AC goes out and the problem is a bad capacitor with the top swollen and about to pop. A Titan Pro 45/5 costs 10 bucks retail. Takes 5 minutes to change. The AC guy tells you need a cap, contactor, need to clean to condenser, new condenser fan and a defrost board because you have a heat pump etc and all you have is a simple problem. That will be 900 bucks, but you don't as a consumer know any better so the consumer coughs up the scam money. Keep up the good work educating the public.

[@ReliableHVACR]

Scum of the earth that are dishonest like that

[@opteliv8077]

Or they have the balls to just charge you $500 for the $12 capacitor plus an hour of labor and don't do anything extra. Not all of them, I'm sure there are good guys left in the trade. But enough of them are crooks and they wonder why brands like Mr Cool are taking off.

[@ReliableHVACR]

@@opteliv8077 of course it's just a shame. And that should be the difference between calling a professional and doing it yourself. The tech should be going over everything and cleaning that system out to make the customer feel the hour or whatever charge is justified

[@joecooksey4331]

Check this out. Daughter buys a house and wants me to check the AC...split 3 ton 10 years old. I'm a DIY guy with a 608 certificate type 1 and 2. Superheat looks good... it has a piston. Blows cold air. I clean the condenser and I pull the blower because it is filthy and clean it. Slide it back in, connect electrical and turn it on to cool. grandson says I see smoke... it was a very fine mist of refrigerant at the base of the evap coil. Two almost microscopic leaks. I tell her to call "X" who i have not used before, but recommended. He has been in business for decades. Coil needs to be replaced no problem. Old coil comes out, new goes in. No nitrogen, no vacuum and no new filter dryer. Dumps in 410a with no scale. Beer can cold is what she got. @@ReliableHVACR

[@ReliableHVACR]

@@joecooksey4331 ok well that irks me, seen it too many times. I can't recommend anyone either because of things like that. But it'll work that day right, they'll just tell you they never had a problem in all their years

[@chrisarnone7896]

Just FYI, your amazon link is wrong in the description. may want to check that out and change it. Great video.

[@stebro2738]

Great cutting edge info!! So, @ 11:21.. (sorry for the very basic question ..& I HAVE done a fair amount- 5 houses- of HVAC install as a multi homeowner..) HOW does one get sealing tape IN between 2 tight ducts? *I may be overthinking, but the intermixing between intake & output plenums "COULD" be significant.. Just looking for tips..Taping or caulking between these 2 ducts can be a pain!! Thanks for the video.. I did learn lots11

[@averynw9180]

your overthinking, he's redoing that hideous duct-work apparently and a little supply air going into return is not going to effect anything. This guys process and general advice is as bad as gets though, just a profit scheme on youtube.

[@urielbravo8]

Love the video I’m actually trying to replace my 25 year old furnance that is not working along with my condenser. I’m actually trying to get the same brand what is your input on the brand I never heard of them but I see they are coming up in the hvac world

[@avsararas]

... and one more thing, here in California, last January (2023) they did a price hike and we paid $600 instead of $150 for the LNG. Conversion to heat pump is a no-brainer here (where there are solar generation options). Similar conversion benefits also apply to even Midwest and the most of the country. Electric rates will go up but fossil based fuels will go even further. So heat pump is a MUST.

[@countysecession]

I'm not sure what's going on in California, but here in the Permian Basin, they're burning natural gas away at the well because it's so cheap it's not worth taking it to market. Natural gas should be cheap for a long time.

[@Ron_Masterjohn]

What is a LNG and natural gas.

[@cbucha]

I'm in la area. Gas is still much cheaper than electric

[@DanielinLaTuna]

@@Ron_Masterjohnnatural gas is piped to your home by the gas company. It is “mined” from gas fields, primarily by “fracking”. LNG is the same gas, but cooled very cold, to change it from gas to liquid. It is the best way to ship gas when gas pipelines are not available. Usually on ships to other countries. It would be too expensive to store and use in a home. I think you mean LPG, which is liquified propane gas. It’s the gas that you buy in small tanks for the gas grill, and that you see near some homes out in the country that don’t have gas pipes. It’s usually delivered by truck to a large tank close to the house.

[@Ron_Masterjohn]

@@DanielinLaTuna I see thank you.

[@gentryt9308]

Do these systems need a drier filter?

[@sentryfe74]

How does it bring on the furnace during a defrost? I didn't see that you hooked up the D wire. I will be blowing cold air in the house during a defrost.

[@robertpearson8989]

Really enjoy your videos! How do you like the ACIQ heat pump systems? Have any concerns about them? I’m considering replacing my worn out a/c with one and using my gas furnace as back up heat. Thanks Robert

[@SuperOmgitsu]

Hi great information! Would this work if furnace is a single stage ? Would the blower of the furnace be running at 100% and defeat the purpose of an inverter HP? Thank you.

[@kevinzuraf2161]

I didn’t see anything about flushing the reused lines. Is flushing not necessary?

[@diyhvacguy]

This was going from 410a to 410a so no flush was needed.

[@carsonsmith5871]

Awesome video thank you for all the great information!

[@bobbg9041]

Pressure come out of a new A coil? No sir its a vacume, not presure. And shouldn't you be changing the linesets also for long term reliability coolent types can make other chemical coolent brands less effective mix and start eating the internal parts, yes you can flush them out but do the original copper lines meet the requirements of the new system, in this case you replace the whole system and fix any duct work you can get to to proper size, you'll save more money in energy bills in the long run and have a system troble free last longer. Id also change the gas furnace to 97% or better efficient and burn outside air vers inside air Whats the point of suckling air from outside the house in past a envelope that has cracks in walls past windows and doors making a cold outside air draft or down a chimney. All these cause ways for lost energy. If your making a home more energy efficient you go at every aspect or your just wasting money you will have to address later when the old furnace fails. And it will.

[@diyhvacguy]

It’s absolutely pressure. Nitrogen charged.

[@RobertTuck-vo8cw]

You did not convert an air conditioner to a heat pump. You took out a functioning AC and installed a new heat pump.

[@user-ln7of9gs4s]

There is no proof that a/c could do both heating and cooling. Many a/c units do not have a reversing valve to provide heating, and do cooling only. Just like there are mini splits that are cooling only.

[@RobertTuck-vo8cw]

@@user-ln7of9gs4s I know what an AC and HPs are, how they works and how to design them. It is still not a conversion. It is a replacement.

[@user-ln7of9gs4s]

@@RobertTuck-vo8cw but if they didn’t have heat via heat pump; then it was converted, and instead of being gas it’s now a dual fuel unit. It would be a heat pump and furnace for heating. You even admit in your post, he took out an A/c and installed a new heat pump. I’m not sure what exactly you’re contesting?

[@RobertTuck-vo8cw]

@@user-ln7of9gs4s No. It was not converted. It was changed.

[@user-ln7of9gs4s]

@@RobertTuck-vo8cw google heat pump. An air conditioner can cool, a heat pump can heat and cool. I’m not understanding what you’re trying to prove. That was an air conditioner, that was swapped to a heat pump.

[@NickShoust]

Do a short or a separate video of that wireless sender and receiver. That’s huge to retrofit old homes

[@diyhvacguy]

Already have one 👍🏼

[@OneLeggedTarantula]

Nice, thanks. I didn't know you could mix the heat pump with a furnace. I installed a mini split heat pump by itself, no furnace. Very helpful tutorial.

[@danjoyce6135]

Do you have a brand and model # for that heat pump? Interesting

[@wtfg1]

Not good for DIYers , warranty no good unless installed by licensed contractor . Fine for you but not us DIYers

[@urielbravo8]

All you can do is get it install and get a company that’s licensed show up when you do your first start up as long as you do everything right then boom you have a company that’s license sign off on it and still save a lot of $$

[@NurseAcrobat]

I wonder how many people would add a gas furnace to an already installed heat pump setup to make it dual fuel. I could see it being much easier to add a heat pump to a gas setup than vice versa. My 3 ton single stage heat pump works well enough but below 40F gas may be more cost effective if not accounting for the cost of gas installation.

[@search_eternal]

Looks great. Was wondering how come you didn't put the heat pump on risers and are you going top put on a surge protector?

[@bills6946]

In the beginning, you stated the flue pipe had to be changed to flex pipe. The existing flue is already double wall. An 80% furnace utilizes double wall flue pipe. The only reason you changed it to flex was to make the furnace termination easier. You could have stayed with the double wall flue pipe but possibly would have needed an additional fitting.

[@EarlHayward]

Moreover, the more efficient a furnace is, the greater the need for double wall… If too much heat is lost, the natural draft could be impaired and you could have carbon dioxide coming out of the draft hood (assuming it is not fan forced)… Speaking of which, there is double wall flex vent pipe - I know Metal Fab has some, I assume the others also have, but it has been a few years (technically decades) since I have done anything with heating equipment…

[@mikojijiye]

Hello I got the same heatpump but it's branded something else. I can't seem to find the manual for the heatpump was wondering if you know where I can find the electrical diagram

[@tomw-d7z]

This type of upgrade reuses the existing line set. Can you comment on the oil compatibility if, say, an R-22 system is upgraded to R-410A and some oil remains in the line set.

[@diyhvacguy]

This system was going from 410a to 410a but if this was a r22 system you can easily flush the lines with these little foam bigs you shove in the line and blow through with nitrogen. But honestly, if there is no acid in the system, I’ve replaced a ton of systems without flushing the lines and have had zero problems. The minimal r22 oil isn’t going to cause any harm. That’s just my .02 cents. Cheers

[@Ron_Masterjohn]

Have a living room and kitchen that is a rectangular room at 550 sq ft. On my single story flat roof home. We spend most our time in the living room so what would be the best and cheapest to operate setup to cool it in the summer and heat it in those cold and rainy months here in Washington state? I’m very capable of installing a mini split but there is so many to choose from. Plus a master and 2 small bedrooms to heat and keep cool.

[@EarlHayward]

Most manufactures make systems where one condenser can support 2, 3, 4 or more evaporators (sometimes called a head)… However, unless it is a variable refrigerant flow (also called variable refrigerant volume) all indoor units must operate in the same mode (in other words, all will be cooling or heating)… Regardless, both types will probably save money, but improving insulation and preventing heat loss is probably a better investment!

[@TheBurnsStuff]

It sucks that most manufacturers won't honor any warranty unless installed by a pro.

[@diyhvacguy]

Most people don’t know this but I offer remote services over at Patreon.com/diyhvacguy and I also offer warranty registration there for customers as a licensed hvac contractor. Cheers

[@dporrasxtremeLS3]

This was Way Better than Ask This Old House! Or any TV A/C home show on PBS or anywhere! Thanks! This was so interesting all the way to the end! So Natural too!

[@diyhvacguy]

Thanks so much. I try and make everything as clear and concise as possible! Cheers

[@scoobtoober2975]

This is quiet outside. Now I just hear my neighbors choppy fan new Amana, rebage Goodman. Mind you it's new too 2 years or so, heat pump, they needed service this winter on it. I bet the install have to be perfect now a days to keep all coils happy as they are thinner and rifled

[@JaredJanhsen]

Great info! My dad's house has an existing upflow gas furnace with no air conditioning. The furnace is old and needs replacing. We want to upgrade to a dual fuel system so we can get rid of the 3 window ACs we have in the house. Great to know about ACiQ and the Fast-stat.

[@FazilAliev-vr5xd]

Hi, Thank you for excellent videos. I learn a lot. From one of your videos I learned about SkillCat and easily got EPA 608 certificate for free. Please mention this again in your videos to all youtubers who are interested, there are materials, training tests and online video controlled certificate test. All free!!! Training material also is free. I checked many places all charge for the test, SkillCat is free, easy and the best. Thank you for for helping people.

[@averynw9180]

So the solution is to buy an actual heat-pump (horrendous brand) and not follow the manufacturers instructions and just braze the thing instead of flaring (far easier for homeowners)? .... this guy is a hack who should know the likelihood of a homeowner not messing a critical step in the install is about 1 in 20 .... He's NOT doing anyone any favors.

[@Letgodsortumout]

Dave im a commercial GC. a builder. i have used ur videos to install 3 mini splits and bought all the needed tools. getting good at it. i have a 10 yr old 410A goodman 2.5 ton condenser that is shot. replaced capacitor...runs but screwed. sounds like it is going come apart. live in CLT. not cooling. i have ngas furnace and want to do the the dual fuel heat pump conversion. what model # is the unit in your conversion. tks

[@thumbnailqualityassurance7853]

omegalul, you are not converting anything you are literally replacing the outdoor unit and the indoor coil..................................

[@scottlanier5133]

Why did you change the A coil when you already had an r410a coil? Its not needed

[@dkd1228]

Thanks for the video. Does the warranty coverage require that the installation be performed by a licensed contractor?

[@Honestandtruth007]

When R410A phase Out in 2025 for the NEW refrigerant,then Can we still install R410A system ❓❓❓

[@Brett-cv3jq]

You can still use your current system.RS-53 (R470A) is going to be the drop-in replacement for R410a systems. The new units after phase out will use R-454B. You can't use R-454B in an R410a system because of efficiency, and R-454B is more flammable. New compressor designed for R-454B.

[@EarlHayward]

Yes, if you can purchase them… The phase out impacts manufacturing, what is in the supply chain can still be sold… At least I think that is what you were asking about…

[@Honestandtruth007]

Thank you for your Reply 👍​@@EarlHayward

[@kevin9c1]

Is that mini-split style condenser still a variable refrigerant flow? If so, how does it work with the TXV? Obviously the furnace isn't variable but is there still an efficiency gain from the condenser ramping its compressor and fan up and down based on cooling/heating load? Or is it just going to run wide open?

[@diyhvacguy]

Yes so the furnace is a single speed very basic fan, so when the ac kicks on it always goes into the same fan speed obviously. However the thermostat tells the compressor which stage to go in for the outdoor unit, so if it’s only calling for a degree of cooling or heating it will go into single stage, and it also uses outdoor temp so if it’s way hot out but only calling for a degree it will probably go into stage 2 but the thermostat controls the staging. The indoor coil is regulated with the multidirectional txv, and the outdoor unit actually has an EEV (electric expansion valve) so they work together and save money. Not as much savings as having a variable speed fan but I wanted to keep my standard efficiency furnace because I love the reliability of them. The main reason for me swapping over is so I can run my cooling OR heating with my generator now even if there is no electricity or city gas. Cheers

[@benjaminheinzeroth6427]

When getting some quotes for HVAC guys to do this same install in Minnesota they were quoting as high as $7500! One told me with these systems to never go over a MERV 8 level filter as well, for these systems need to breath when under running!

[@Jon-hx7pe]

you can use high merv filter if it has enough surface area. media filters are the best for that. the problem comes when people use 1" high merv filters and the filter is too small.

[@The3chordwonder]

2 questions - Does the SEER rating go down because the indoor blower is the same PSC motor instead of the fancier ECM/Variable speed ones? If you wanted to convert the indoor furnace to a variable speed setup, is it possible, or at that point is it almost as expensive as just replacing the entire furnace? I have Propane here, which is super expensive, and it rarely gets below freezing here, so heat pump is a no brainer. Thanks for this video!

[@EarlHayward]

@@bluejay713 The SEER rating is a combination of both the condenser and the evaporate… Companies, like AllStyle (that only make evaporators, publish matrices showing the SEER rating when paired with condensers from various manufacturers… Generally, you can slightly increase the efficient by over sizing the evaporator against the condenser… While I am not an engineer, I remember some of the tables and that is generally how it worked… And, to answer the question, yes PSC motors limit the SEER rating… ECMs and VFDs increase the efficiency rating, and for good reasons…

[@tallbrian100]

Up here in the north having a gas backup is required. You can go with electric heat strips but that is so expensive to run.

[@Shermgoose]

Did you end up changing your dip switches to 2 and 3 being on?

[@jpenn727]

Glad to know the ACiQ has two service ports. So many just have one.

[@youdontknowme5969]

Most HVAC contractors here won't even offer a heat pump at all LOL This would be a damn near perfect option for my home

[@drsg9124]

Or they will charge an eye watering amount for a basic one!!

[@utubepro7742]

Noticed no W TERMINAL AT OUTDOOR UNIT WHEN IT GOES INTO DEFROST WONT IT BLOW COLD?

[@diyhvacguy]

No it uses y for heating as well. All it does is trigger the reversing valve so that’s how the thermostat knows it’s in heat mode. No revershing valve signal=cooling Reversing valve signal=heating

[@kevin9c1]

That was cool but what a complex install compared to the usual mini-split wall mount air handlers.

[@EarlHayward]

That doesn’t make sense, all equipment is basically the same… So, unless you are not cutting excess copper from line sets (which means you are probably coiling the line set and creating oil traps) the process is the same!

[@0HalfLife0]

Question, could you have swaged the house-side lines in order to use stay brite 8? I would think that would work. Another great video! I always learn something new watching your vids. Thanks for posting them.

[@EarlHayward]

Using Stay Bright on anything with significant vibration is asking for trouble… Maybe I am old school, but a brazed joint is more resilient to vibration and external pressure/vibration.. There is/was a reason that all underground copper plumbing must be brazed (at least it used to be, but maybe that changed)…

[@JonA-ii8wo]

Do you have a better outline of what you did? I know the 20 seer unit is a 2 ton, but what was there prior? Also, do you have the P/N's you used. Or some guidance to how you selected the N-Coil that you put into the same place. Thanks!

[@benjaminheinzeroth6427]

Great video, I just installed this same system using the recommended encased evaporator coil made by ACiQ as well, but we ran into a problem that your video shared using an adapter supplied with your heat pump unit by ACiQ for high and low side hose connections for gages that will depress the Schrader valve - mine didn't come with one - OH NO!!! What the F*^k - where do you get one of those, didn't see it in your listing of special tools - or do we need special gage hoses now for newer heat pump equipment???

[@countysecession]

That's interesting. I'm learning a lot from your videos. Why would you want to put in a heat pump? Isn't natural gas cheaper and more desirable than a heat pump?

[@diyhvacguy]

Here in Utah, ng is still cheap, however, I love having the heat pump as a backup heating in the event that they power and gas are lost. I can still heat and cool my home with my generator, wheras before I swapped to a heat pump, if we lost gas and electric, we would be up a creek.

[@Catsrules1]

Yeah ng is still cheaper however if your thinking of installing solar, that would offset cost of electricity making the electricity cheaper overall.

[@jayeritsland9780]

Great video, I recently installed a multizone ACIQ mini-split at my sons house and he loves it. We bought the unit at HVAC direct, it was advertised at 24 seer. I was amazed how quiet the outdoor unit was. The outdoor unit looks identical to what you installed. I have a gas furnace at my house and I installed a split York system. I would love to upgrade my system to dual fuel however I don't see an option at HVAC direct to buy the outdoor unit you bought and just an indoor coil. Just for reference what system did you install? or did you call then and tell then what you needed? Also for me your Amazon link it not working, I get "sorry page not found"..

[@diyhvacguy]

Sorry about that I got the link fixed. So I ordered this condenser and the acIQ coil separately but shipped together. If you’d like some help finding this same setup, feel free to sign up for our remote services membership at Patreon.com/diyhvacguy Hope we can help. Cheers

[@jayeritsland9780]

​@@bluejay713 so we installed it at my sons house and he loves it. Its super quiet inside and outside and works well. So far they say their cooling bill is lower compared to a room unit. He had called and talked to HVAC direct and they recommended the unit. . Yes its made in China however it has a good warranty and I don't think HVAC direct would promote gear that is likely to break down or has poor quality control. The unit we went with did not have quick connect linesets which did not bother us, we flared the lineset ends, pressure tested the evacuated and did decay test. The system we installed is a weighed charge so you just add per length of lineset if needed. You can calculate superheat but it does not tell you a lot since the metering is in the unit and it has an accumulator. I guess time will tell if we run into any issues.

[@bryanditol4562]

Dave. Awesome job! You nailed it!! God Bless!

[@INoahGuy92]

If a DIYer didn't want to mess with brazing, is there a solution to using a normal 3/4 and 3/8 lines and fitting so we can use StayBrite#8? Or lines with fitting like the precharged MrCool ones? Or do we need to choose brand other than ACIQ for this reason?

[@Jon-hx7pe]

I think when there's a working a/c, it makes no sense to replace it with a heatpump unless the primary heating source is propane, oil or electric now. wasteful and it will never give a return on investment.

[@jonathantaeidkashani9122]

Thanks for sharing. Why do you apply the solder on the same side you play the heat? Pretty sure in plumbing you're supposed to do heat on one side solder on the other and let it wick around. Is it different for refrigerants?

[@diyhvacguy]

It’s physically super hard to apply the heat on the other side lol but I’ve never had a single problem brazing this way. As long as your torch is pointed where you want the filter to go, that’s the main thing.

[@EarlHayward]

You are correct, it is called capillary action… It is not hard, it just takes more practice to perfect… However, what the content creator failed to mention is that with proper technique one would save on the amount of brazing alloy used.. As someone that works on appliances, and cooling equipment in data centers, mot to mention mid and low temp, where 20% to 45% (silver) is more common, those savings add up!

[@Time-Trvlr]

I would gladly upgrade my HVAC except my evaporator is horizontal in the attic of my tiny two story home, tight spaces.

[@thenexthobby]

Would like to have this done. The place I’m in has a 95% efficiency Trane with a variable speed blower but when the last A/C went bad they cheapened out and did not go with a heat pump. And the inverter seems the way to go for higher SEER.

[@bobfranco6291]

Your outside unit is a mini split condenser ? Maybe you can help me with a ductless mini split? How to install a float switch on a ductless mini split? Building code requires a float switch. Oh by the way thank you for helping me get my EPA certification, Bob F.

[@calmannomore5832]

Great video like all of your others. Does that HP go into defrost? If so is there supposed to be a wire to run the furnace? If not won't you get cold air coming out of the ducts during defrost? I know they are normally not supposed to run at the same time but I read that is should in defrost. Thanks!

[@Time-Trvlr]

what about the power to the contractor coil calling for the compressor to run. when do or did you disable that before the upgrade?

[@matthewmayand79]

I did not see a filter dryer. I’m thinking about doing this. Can I add a heat pump filter dryer dual direction?

[@diyhvacguy]

They specifically said not to install a filter drier so I did not.

[@matthewmayand79]

@@diyhvacguy ok, Thanks for getting back. When I do mine I will shoot you some pics. You do a good job with your How to viedos. Keep up the good work.

[@choppergunner1408]

That’s actually what every contractor is doing… at least in IL. Big government push for “clean” energy.

[@zero1fifty8]

Not very DIY friendly but good info for an HVAC guy

[@douglaswindsor120]

So where is the duel fuel duel fuel so one fuel could be electricity what's the other seams like it's a heat pump only

[@marconantel7735]

I'm told the furnace outlet flanges need to be modified to accommodate the cased coil?

[@fanzfanzilla]

Could you have used the HVAC pro-connect coupler to connect the lines by trimming off the end of both copper lines provided by ACIQ?

[@d1mon12]

I went 100% flaring with this.

[@johnzach2057]

If only they could make these systems accept solar panels without the need of an inverter (like the eg4 mini splits). This is such a ni brainer for sunny places. With 1-2kw solar panels this should barely get any energy from the grid during the day

[@EarlHayward]

Solar is only DC, so until there is some new invention with solar technology, you would also need an inverter… Alternatively, I suppose of the entire system could be DC, but then one would need a Rectifier… Six of one, half a dozen of the other!

[@12296145]

though the green wire fan when to green not yellow am confused

[@kw_boeing]

Looks like an awesome system! Thank you for the info on the wire kit, that's helpful.

[@SolarBuck]

Could you do something similar with electric heat. i have a 13 seer condenser unit that was installed back in 2016. The price of electricity has gone way up since then. I have been looking at Mini split heat pump options but this is the first blending of the two systems, if you can call it that, i have seen. I wish I had Gas heat as that would be more economical already. Just curious if there are any different gotchas to look out for?

[@jamesphillips2285]

Since we need to get off of fossil fuel by 2030: you will need to rip out any new gas system within 7 years. 27 years if you use the more unrealistic 2050 deadline.

[@seanwebb1589]

I have a MARBQ carrier like this but we needed a 24v controller to communicate with the outdoor and the indoor stat. Does the ACIQ have that built in? It looks just like the carrier

[@diyhvacguy]

Yes I believe so

[@RobertDickens2002]

Video is a little misleading this is just a change out.

[@diyhvacguy]

Not just a changeout. It was ac, and now it’s a heat pump.

[@RobertDickens2002]

@diyhvacguy yes but I think everyone was under the assumption you was adding a reversing valve to a preexisting unit.

[@BigEHead]

Thanks for this! I've been looking at the aciq for just this reason for about a year. Super helpful thanks!

[@jonc5152]

in the thumbnail you looked like you had no shirt on... and of course looked like Randy from Trailer Park Boys. just sayin

[@diyhvacguy]

😂

[@joehernandez4678]

Awesome video! Very precise and detailed!

[@peterciarroni8920]

Excellent video, thank you!!

[@nicbuse6019]

BTY - your "All my favorite HVAC tools" link does not work

[@diyhvacguy]

Thank you! Got that fixed 👍🏼

[@ET-vg3xl]

Great video! What happens with your indoor fan when the unit needs to go into defrost? Will you get cold air for the cycle or shut off? Good job as always!

[@fourfortyroadrunner6701]

Now wait a minute. Normally, the backup heat source is DOWNSTREAM of the heat pump indoor coil. This is so that the backup heat source does not overheat the heat pump, either in heating or in defrost. This of course is opposite of an AC only installation, where the AC coil is downstream of the furnace. How does this system deal with this or "does" it?

[@kevin9c1]

Every hot air furnace with an A/C coil blows hot air right into the A/C coil. What's the difference here?

[@InsidiousDr9]

Mostly doesn't matter, but he's also setup to not running both simultaneously. The gas furnace will just blow hot air over the evaporator which will be off.

[@fourfortyroadrunner6701]

@@InsidiousDr9 How do you think defrost works? When the pump is in defrost, the backup is running. You are causing an overheat/ overpressure condition in the (presently) evap during defrost.

[@fourfortyroadrunner6701]

@@kevin9c1 The difference is, the backup heat will be running in DEFROST

[@kevin9c1]

@@fourfortyroadrunner6701 Well if the furnace dumps heat into the evap it will just make defrost go faster (in theory) by driving higher condenser pressures and temps. But it won't be defrosting if the furnace is calling. So there isn't an issue.

[@robbrobb2161]

Excellent explanation. Thank you

[@mattb1967mb]

Can a minisplit pump itself down like that if you want to shorten your freon lines ?

[@petersmart1999]

Yes

[@mattb1967mb]

​@petersmart1999 I thought so but wanted to make sure.. I installed my minisplit a year ago but didn't take the time to shorten the lines. Tired of looking at the excess lines. Thanks

[@mikeglasgow9618]

If you hVe a Scroll Compressor. Do not pump into a full vacuum for an extended period of time or you could damage the Compressor. JMO

[@diyhvacguy]

Yea as soon as you hit zero or even a bit before you should crank that low side down and shut it down

[@petersmart1999]

​@@mikeglasgow9618Be pretty rare to find a scroll in a Mini/Ductless system! They use rotary's!

[@mattjudd5275]

If new system has different type of Freon gas, do you have to change the line set ?

[@diyhvacguy]

No, you can flush the lines and reuse them

[@superspeeder]

Can you recover the refrigerant in a mini-split using the compressor the same way you did with the AC unit? I have a Fujitsu ductless I’d like to use for temporary heating during construction and then relocate it to my garage once my furnace goes in.

[@diyhvacguy]

Yes you can

[@superspeeder]

@@diyhvacguy thanks!

[@tweb3282]

Could you not just have cut the end off of that suction line and flared it to use Stay Bright 8?

[@diyhvacguy]

No because the spiral portion was not a true 3/4 line it was smaller.. otherwise I totally would have

[@georgeengland743]

You still liking the ACIQ (Midea) equipment ?

[@diyhvacguy]

Yes!! Very much

[@martinperilloux8598]

Are you able to check the charge on the inverter like a normal Ac or is it required to evacuate and measure the refrigerant?

[@EarlHayward]

@@bluejay713 No, you cannot use sub-cooling to check charge on a variable speed unit (if that is what you meant when mentioning an inverter as that is generally linked to VFDs)… Yes, you can use a rule of thumb (also called the SWAG method)… But, variable speed systems must be charged by weight, technically speaking!

[@theapocilip]

does that sender / receiver unit communicate through the wires or bluetooth?

[@diyhvacguy]

Bluetooth. That’s the whole idea is that you don’t need to run new wires through a wall to your furnace.

[@drutfurgeson]

Great video! @2:10 did you all see that black widow?

[@diyhvacguy]

Not at the time!!

[@pilotboba]

Why not let the heat pump and furnace run at the same time? That's how we have ours set up. Granted our aux is heat strips. (Florida, we almost never go to emergency/aux heat).

[@EarlHayward]

If your furnace is heating at the same time your systems is in heat pump mode, you have problems… Are you sure that is the case? Any competent technician would make the furnace backup heat (triggered if indoor temp drops too low)… One would have to wire a thermostat incorrectly to. Are both operate at the same time as you assert, and (again) that creates issues!

[@pilotboba]

@@EarlHayward maybe I'm wrong. But I didn't think emergency heat (heat strips) in our system turned off the reversing valve/compressor. So, I am asking what "problems" or "issues"?

[@Rome3aaro]

That's wireless kit is next level..

[@russellfinan8690]

Does your stage 1 heating work? I have the same exact set up but only blower runs for stage 1 then stage 2 comes on and heats. I’m also an hvac tech

[@diyhvacguy]

Yea mine is in stage 1 heating alot. Fan spins real slow, and then if it needs more heat it will ramp up

[@russellfinan8690]

Going to have to double check my wiring. I just bought a Bryant two stage variable stage furnace so luckily I’ll have proper terminals now and be able to use it a little bit better. Works great right now , it’s able to maintain 70 degrees without issue but you can tell the supply air definitely isn’t as warm as gas or oil

[@craigheimericks4594]

Excellent video! I'm learning so much from you, which has been helping with our rentals! Do you think this condenser could be paired with an existing coil? Also, could you have swaged the lineset so you could have used the stay Brite?

[@diyhvacguy]

No, the fitting on this one was not a true 3/4 so that wasn’t an option. And the only way that would be possible is if you have a bi directional txv. Most are setup for cooking only but if the coil says for heat pump also then you could totally throw a heat pump condenser on it and be done.

[@3DVM]

@@diyhvacguy couldn't you have just flared the end of the line set for a compression fitting instead of brazing?

[@scoobtoober2975]

Can you take the coil out of the case and have it loose? My house ducting is old and is too short for a case. Love your work. Thanks for the tips

[@diyhvacguy]

Yes, as long as all of the air is forced through the coil and no air can bypass it, that can definitely be done 👍🏼

[@scoobtoober2975]

@@diyhvacguy Thank you!!! I"m buying all the tools needed now. I just measured and the new furnaces are 5 inches shorter. 35" vs my current one is 39.25" tall. This will give me the room to put the cased coil in. YAY. Would you over size the coil if you had room. 3 ton vs 2 ton. 2 ton condenser. heatpump system. Or just get 2 ton for both. This exact model just about. HVAC direct looks like the only source. I have to get a quiet unit. My neighbors have a quiet amana and i'm jealous. And hate to keep them up at night. This is going to be fun and tough at the same time. Cheers

[@chalosbike6273]

Do you recommend it? I am planning on buying it.

[@d1mon12]

I bought it and just finished installing it.

[@56mauro1]

YOU BRAZE FOR YOUR HOUSE BUT USE THE OTHER SHIT FOR YOUR COSTUMERS LOL

[@diyhvacguy]

Nah, I’d have 100% stay brite 8 this to prove a point, but you saw how big the gaps were. I literally couldn’t use it for this application because of the premade fitting they sent with the unit was not a snug fit.

[@jwasko]

Trying to get a dual fuel heat pump in PA right now and have it qualify for the federal tax rebate. But the prices I'm getting for a qualifying heat pump are perhaps $8000 more than an AC because (I am told) I can't just use a normal 95% furnace. I'd also need a variable speed furnace fan. Is that true?

[@diyhvacguy]

Not true. Mine is not variable speed. Just a standard 80% single speed gas furnace. But your state has different requirements so it’s not that it won’t work (it totally will) it’s that it’s probably not “allowed”

[@charleslynn6113]

Does having the Bluetooth receiver inside the furnace metal enclosure affect it's reception?

[@EarlHayward]

Most normal furnaces are not as 95%… At that efficiency, you wind up with condensing gas in the flue pipe and that creates a number of other issues…

[@HHHA237]

Is ACIQ good unit to buy please help

[@diyhvacguy]

Yes! I love ours. Has a 12 year warranty as well. They wouldn’t offer that long of a warranty if it wasn’t a good product. Cheers

[@Bass.Player]

Is stage 1&2 the same as normal and turbo mode?

[@diyhvacguy]

Basically, yes.

[@INoahGuy92]

Will this work installing with a high efficiency gas furnace?

[@diyhvacguy]

Yesir! Watch tomorrows video :)

[@INoahGuy92]

Looking forward to it.

[@Val-xi4we]

Why did you use the core removal tool?

[@jamesphillips2285]

Looks like the core had a rubber ring that may be damaged by heat.