How To Replace Your HVAC System From Start To Finish

[@matthewprather7386]

Your demonstration of how to build the transition, including your thought process, was great!

[@tinysand3517]

Lots of respect to you friend, not only to your AC knowledge and skills but to your sheet metal as well. Well done!

[@garysilver718]

Great sheet metal work, I’m impressed. I installed my own first air conditioner unit and didn’t do a goo job on the sheet metal. Years latter I had the professionals install a new unit and their sheet metal job sucked.

[@Garth2011]

Nice clean install, bending copper lines is king, full no cut/seem on the foam insulation outside, Nice clean whip and electrical routing. Inside lines with nice clean bends, no torch burns on the painted cabinets, clean tape job on the ducting/sheet metal. What I prefer on HVAC filters is the return registers that have the filter located in them, as that keeps the return ducting clean as well plus its more convenient when changing them. Some installs won't allow for them but most will.

[@user-eh3qz4zv1o]

Thanks for your video's. On soldering get yourself the Turbo Torch and B tank with the different size tips. Heat your fitting only once since they are only 3/8" and 3/4". Heat the bottom and feed the top. A smaller flame using a B tank is better and safer inside the house.

[@wilassguess]

Bro, I don't know your name other than DIY HVAC Guy. Thank you. I was able to follow your advice/guidance and install a brand new Goodman HVAC unit. I chose the furnace and AC unit instead of the heat pump option. I had a Rheem system in my home for years. Nothing against Rheem. Don't think they are a terrible company. The darn thing never worked correct. After the original installer came to my home they could never figure out what was wrong with my unit. The evap coil would freeze up during summer use. The heat pump never quite heated the house during the winter. When the heat pump stopped, we use the emergency heat. Overtime the coils for the electric heat broke down and fell apart. We had the Rheem system since 1995. Good run for a half baked installed system.

[@rickdiego5]

Great job on the video. One thing I question is putting the thermostat wire through the conduit with the 240 volt line. I don't think you can put the low voltage line in the same conduit as a high voltage. If there's a short from the 240 volt to the low voltage someone's going to get a surprise at the thermostat.

[@RetiredSignDude]

Not really. Those thermostat wires would burn out in a second when exposed to the 240v line.

[@ThomasWalker-m2y]

​@@RetiredSignDudeno the want they will carry high voltage short distance.

[@benhonna]

I believe it is ok if they are 600v rated.

[@richlikeg3722]

I could watch installs all day, each one has its own set of challenges and ways to go about it😮

[@richlikeg3722]

What was the price the other contractor quoted?

[@DomReacts]

True that man

[@davidskaggs9914]

FYI...I have had issues where running the thermostat wires in conduit with 120/240v has caused issues. I appreciate your knowledge on doing the transitions. Very professional work

[@spoonwings1981]

Are you allowed to run high and low voltage together?

[@mikec7289]

When reusing the line set and changing from r22 to r410a, don't the lines need to be flushed out to remove residual oil from the prior charge?

[@petersmart1999]

Yepper!

[@diyhvacguy]

I’ve done tons of system without the flush and never had a single problem. But you can use the little foam pigs and send it through the line and they do a good job. I just do that if I know the system had compressor burnout

[@josephtran-day6281]

@@diyhvacguy no no my guy. Flush it out it doesnt take long. It helps prevent contamination and freon restriction in the line.

[@MrMiniHoop22]

Awesome! I love your videos. I'm getting ready to switch out the old 80% HVAC system in my woodworking shop and am changing from r22 to r410a. I already bought the foam pigs and Staybrite 8. The old furnace developed a crack in the heat exchanger last winter and need to get everything done in October before it gets to cold in Indiana! Your videos make everything so easy to follow along & understand each step!@@diyhvacguy

[@06GOAT56943]

@@diyhvacguy​​⁠so you don’t flush unless it was a burnout? That makes no sense. You should be using flush or the pigs considering mineral oil and Poe oil are not compatible. Why do you people have to be such hacks 🤦🏻‍♂️

[@Greg-McIver]

If you ever do a fresh air heat exchanger, I'd love to see that. Love your videos.

[@Eggrollofdoom]

What's good about staybrite is you don't have to flow nitrogen when soldering.

[@homeauthorityllc]

Thank yo very much for another great vid. I can't even begin to count the number of filter housings I've seen that aren't sealed along the bottom and the back to the return plenum or the furnace cabinet! Easy enough to check with a flashlight.

[@ThomasWalker-m2y]

Back in the 80ds most all electrical whips came with low voltage wire in the whips with high voltage around Missouri area. Then the rules changed because of high voltage jumping into low voltage side because of close proximity to each other. I've actually seen T-stat s melt off the wall.

[@diyhvacguy]

Dang that’s crazy!

[@williamfinnegan6673]

Saved me a bunch. You da man! Took me about 20 minutes to move. Thanks.

[@nwellinghoff]

Looks to be about 7k of work! You are a good friend.

[@jma24]

Hey there - NEC doesn’t allow for low voltage conductors to be run in a conduit with line voltage. Needs to be separate. Love the videos.

[@kimballwhite]

Great work, Dave! Excited to see you next week!

[@Fatal_Error_Gaming]

Yo, really enjoy watching your vids man. Very therapeutic. Question, what do you guys do when someone has their airflow unit in the attic? I mean I have like a big one in my attic. And it sure isn't coming down through the attic door. What do y'all have to do? Cut a hole in the roof and pull it out that way? They apparently put it in when they were building the house. Anyways. Hope to hear your reply. Cheers. And awesome job on this vid.

[@khoatran4841]

you do not use solders on hvac systems, because they run at higher pressures and vibrations. tin-lead is rated for 150 psi at 150F, tin-antimony is 400 psi at 150F. hvac systems can exceed 450 psi due to certain conditions. And that's not including the vibration while the systems are running, slowly putting crack on that solder. braze has stronger mechanical connection.

[@konglin3126]

He used plumbing solder, not for the HVAC.

[@percytsang8230]

Ho Sir, here is a question that Don't need to remove the Valve Core on the new machine before welding? I’m a beginner. Really asking about it. Thank you.

[@GageForeman-w5w]

Debatable since how he solders is so fast tbh

[@francoispierrechanguion4128]

Why not Staybrite 8 ? Thanks great content.

[@hosocat1410]

Thanks for all your great videos. Do you have an online source youd recommend for purchase of complete units?

[@diyhvacguy]

Yes! Hvacdirect.com If you need help locating a system reach out to me at [e-mail] and I’m happy to help. Cheers

[@NickShoust]

It's just crazy to me that that the heat can be that close up against the coil. I would have thought the air passing through would be separated.

[@matthewprather7386]

I think the output side of the furnace isn’t supposed to be super hot - best efficiency happens when there’s not too large a difference between the house temp and the outlet temp. One factor in achieving that is the fan must be running while the burner is on. The other thing is the coil probably isn’t super delicate - the pookie is probably more sensitive to the heat than the coil itself.

[@billy2bob63]

Since you did a video for the surge protector for the ac condenser can you please do a video for a surge protector for the inside heating unit to protect that?

[@petersmart1999]

Why not protect the whole house!

[@billy2bob63]

@petersmart1999 My power from the electric company has a power surge protector on it but if I get a lightening strike on my house that will protect the utility company from the back flow but not my individual heating unit or ac condersor! That's why I need individual surge protection on each item.

[@petersmart1999]

@@billy2bob63 You can install one in you Breaker Panel! It will protect the whole house!

[@SW-nq1bx]

Also need to protect your appliances & electronics. They all have computer boards, and power surges can ruin them. I've replaced 3 boards on my refrigerator at $100 each (at cost) not including install by repair service.

[@ForgetU]

Did I miss how you saved them $7000? Long day, good work.

[@IvanHVAC]

Same, probably someone else quoted them 7k more.

[@Fatal_Error_Gaming]

Click Bait. When the title says something like his title says, a person that's interested in replacing their unit that's what they are gonna see..the save $7000 and in turn saves you from clicking on some other random ac install video. And that insures his video is more clickable than other vids. Make sense? Psychology and the KZbin algorithm. Lol😂

[@AF-O6]

I thought you moved to staybrite. Perhaps codes or the customer demanded brazing, or dissimilar metals???

[@Marco-qe5zw]

@@AF-O6 was he not using staybrite8 when soldering??

[@christran419]

How does one suck out the refrigerant from ac line if condenser does not work? Thanks. Great Video by the way?

[@daylbrinkman]

Looks like they were using the old reliable "pieces of copper pipe" fuses. Very high capacity.

[@bjkjoseph]

That duct work you did was pretty good

[@JNHEscapes]

May be a dumb question, but why go to the trouble to angle the ductwork at all…why not just build a square box to connect the coil to the upper duct?

[@johnskalski1033]

Very good installation video, however I must take exception to a couple of things electrical that are not permitted by NEC. Thermostat wires are generally considered class 2 (low voltage 12-24V) wiring and can't be run in the same raceway as class 1 (power wiring). Like in life there are always exceptions, most class 1 wiring has insulation rating of 600V. If the thermostat wiring is also 600V insulation you could do it, not normally though. Also it is never permissible to use a disconnect means as a raceway, so running the thermostat wiring through the disconnect to get into the same raceway as the load side of the disconnect feeding the condenser is prohibited regardless of the insulation value of the thermostat wiring. Inside of manufacturers equipment is a different story I have seen some crazy stuff inside large air handlers and equipment but as long as it's UL listed, electrical inspectors can't say much about it

[@JLV-l4c]

Thank you papa excellent jod!! Thank you for sharing!!

[@brucemadden1626]

Another excellent "tutorial" video--many thanks!😀

[@jeremykg1569]

excellent instructor

[@trucle1859]

Thank you Dave. Great video always

[@StephonDavis-o7z]

Love your video. Can you recommend any HVAC company in Boston, MA? I want to replace 2 forced hot air gas furnaces in a 2-family house. Many thanks.

[@menimeni9825]

Hi Dave, thanks for all the great information. Question; toward the end of the video did you show the process on how to install the refrigerant from the old unit to the new unit. Do you have a separate video on that process?

[@diyhvacguy]

All new condensers are precharged so the old refrigerant stays in the old condenser and is not used in the new one 👍🏼 watch some of my other videos and it will make more sense

[@menimeni9825]

👍@@diyhvacguy

[@davecullum9631]

These are two different freons and would destroy the new system.

[@BryanTorok]

Sucking the refrigerant into the unit being replaces only works if the unit being replaced runs properly and doesn't leak. That then begs the question: Why replace a perfectly good working unit? Before someone says because the new unit is more efficient, there are other HVAC channels where they have done the math to show that the payback period is between 10 and 20 years. By the time the new unit saves enough to pay for itself, it will likely be shot and need replacement.

[@diyhvacguy]

Peace of mind plus efficiency. This is a 16 seer, so it’s not a huge price difference from standard efficiency. But mostly this customer wanted peace of mind knowing his system was new and not going to crap out in the middle of summer or winter. Cheers

[@BryanTorok]

@@diyhvacguy Tnx for the reply.

[@Luckingsworth]

Mine is 100% fully functional. And it is from 1976 😂 I need to move the entire system to make the basement more usable when finished (currently the furnace is in the middle of the basement), move the condenser to be on the side of the house rather than the backyard where a patio is going to go, and yes I would like something more efficient. Not to mention the increased resale on the house will be more than enough to bump up that payback period.

[@BryanTorok]

@@Luckingsworth Those are all good reasons. Often an improvement like that doesn't actually increase the selling price of the property, but makes it easier or faster to sell. That can be its own sort of payback.

[@RyCorp77]

Those 'fuses' looked like just regular copper pipe. Kept blowing fuses and said f-it lets create a fire hazard.

[@paulrozinski1488]

Glad that I wasn’t the only one who noticed this 👍👍

[@ThomasWalker-m2y]

Sure was ,kinda like putting a penny behind the old screw in glass Fuze back in the day B4 breakers come out.

[@ronb6182]

​​@@ThomasWalker-m2y no worst penny can melt easier. I think the only time a penny was used is when Dad had the front porch planed, the planer kept blowing fuses during start up. The penny was removed after the job was done I think Mom asked me to remove the penny don't remember what I used to remove it probably a non conducting object. This reminds me of a cartoon in the local electric code book. It read: I been putting pennies in the fuse box for 20 years. It showed the house burned down. 73

[@Hooterzutoob]

Great videos as always, quick question, what watch are you wearing?

[@diyhvacguy]

Apple Watch ultra 🤘🏼

[@wilassguess]

I want to install my own ac unit with gas heat option what are my options and where do I purchase it? I'm leaning toward carrier. Any advice and guidance appreciated.

[@canyondan]

Thanks for the videos

[@robtorres5518]

A one band-aid job. Not bad

[@hollidaydoc45]

When you pulled the vacuum with the blue hose, you said you pulled the core out of the service side suction line. Do you also pull the core out of the core removal tube port that connects to the vacuum? Thanks

[@diyhvacguy]

There is no core on a core removal tube. Just the one at the service port where the tool is connected 👍🏼

Whats the difference between brazing and soldering? Both methods appear the same to me aside from different heating methods and melting materials used. Could I an entire lineset via soldering or is there some reason that wouldn't be advised?

[@bignicnrg3856]

Crushing it!!!!

[@dallasdandy6276]

Just interested in this and I had a question. I'm not tech just an enthusiast. Can you replace the condenser only say upgrade it to lets say 2t to 3t without changing coil or os it mandatory to change both?

[@aaronwestbrook107]

Why didn't you turn the condenser service ports facing outward for easier service? Because more brazing and wire? You took the easy route... well done overall though.

[@Matts_Crafty]

Great sheet metal work my friend! I cringe every time you grab that crap with no gloves hahaaaaa!!!! Keep up the great content!!!

[@diyhvacguy]

Thanks brotha

[@VeryCrazyChimkenstreamer]

​@@diyhvacguyI. Need the high school diploma to graduate and start working

[@hugomacias3348]

Nice video do you flush line set ?

[@ryanpowell9522]

So how does the warranty work with this for the hardware? I've you won't be able too.

[@mrsayao]

Can I use standard needle gauges for most of the testing?

[@sebastiansanchez3248]

How do you know when to braze or solder?

[@realdan1]

did you flush the existing lines? Did it go from R22 to R410a?

[@stevesolt4036]

When reusing pipe do you clean out old oil?

[@sir-cloutt3417]

why solder vs brazing just curious

[@JimLarsen108]

How do you dispose of the old condenser unit that is filled with refrigerant?

[@crissalamango41]

I used a dolly, put the unit at the curb on garbage day. It was gone in 15 minutes, the scrappers took it. I’ve heard some folks will sell it.

[@Bbbbbbbbbbb-f1w]

“Beer can cold”😂😂😂😂

[@garysgarage.2841]

What's a fair labor charge for a job like this.

[@daddygc5814]

Nice job,how did you clean your old r22 lines

[@Wordwagon]

He didn't

[@huskers993]

Noob here. Why did you not hook the gauges up after to check the super heat to see if it had the proper amount of r410a and instead looked at just the low pressure? I watched a different video and you were all about super heat being about 10 for that day.

[@bigdaddy4975]

Do you use the same gauges for all your jobs? I’m just asking and nobody can really answer me with a straight answer can you use the same gauges for r22 and 410 a?

[@diyhvacguy]

Yea I use the same gauges. Never had a problem. Just make sure you purge the lines if the last unit you hooked up to had a different refrigerant

[@tinysand3517]

how many tons is the new unit? Will the 3/4 suction line can handle ?

[@diyhvacguy]

3 ton and yes 3/4 is generally good up to 3-3.5 ton anything above is typically 7/8

[@wilassguess]

where is your condensate drain and pan?

[@Jcewazhere]

Know any trustworthy HVAC techs in Pueblo CO? Home builder screwed me and I need a heat pump replaced.

[@jorgevillalpando4269]

How can we replace the system form r22 to a410

[@sidtpp]

So confusing discerption, it would be better to go step by step, like what comes first and what’s needs to be done till get ready for 2nd step, l have some knowledge about all these things but l think l wouldn’t dare to start dealing with all these things just following yours, l think it really doesn’t matter how long the video becomes, but it will be something that every body will recommend that, you could possibly at each section refer to another separate video , that you have about that section, and so on, l believe you are very knowledgeable and you can make a more comprehensive video, thanks for all you do

[@ncooty]

@17:51: Mark that hot white conductor with red or black tape.

[@CoreyRaines]

@6:02 The size of them fuses is.. Copper pipe..

[@1811bruce]

Saw that too!

[@CatholicBoy1957]

I'm wondering if the homeowner got a 15,000 dollar quote on the same Ruud brand equipment or was it on a pricey brand like Carrier. .

[@CatholicBoy1957]

@@bluejay713 but would you still save 7000 dollars with Goodman? .

[@petersmart1999]

When you solder,its best practice to start at the bottom of the joint,and work your way up! 1,2,3 #1 Heat pipe,#2 Heat face of socket,#3 Move heat to back of socket.Bottom to top!

[@JohnSmith-uy7sv]

🙄🙄🙄🙄🙄🙄🙄🙄🙄🙄🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@InsidiousDr9]

Do you later reclaim the r22, or is there a place that takes the unit with r22 in it?

[@diyhvacguy]

Yea I reclaim it later on my trailer 👍🏼

[@petersmart1999]

Recover,not reclaim!

[@SteveJ-o3o]

You saved them $7,000.00 dollars. How much did you charge them ?

[@JackofAllTrades1]

Those fuses are copper pipes lol

[@pilotboba]

Nice. Why did they save $7000 ???

[@JohnSmith-uy7sv]

You did it for free and the hvac was free too? How many ton was it?

[@diyhvacguy]

We did not do this for free but they were quoted 7000 more then our bid which is absolute insanity. It was a 3 ton system

[@JohnSmith-uy7sv]

@@diyhvacguy yes, my bad. I commented before I watched the video and saw you replaced the furnace too. I'm always thinking in south flori duh heater terms with my heater coils in my Hvac mobile home system for $200+ super cheap and easy to replace. thanks 🙂

[@sumbamotor]

Why you did not deburr

[@danielvicente1051]

Those look like copper pipe not fuses!!😂😂

[@daveb-h4c]

saved $7000? how

[@diyhvacguy]

She was going to pay 15000 and we did it for $8,000.

[@actechBaDsHaKhAn]

❤

[@9to5techs]

Why would you replace a unit that's still working. Only rich elites can do that.

[@BrianHelmick]

I would definitely be wearing gloves. I even touch that crap I have 15 paper cuts. Then crying like a bitch all night. And hands hurt so bad can’t install the next day.

[@rockboy2031]

those weren't fuses they were copper pipes XD

[@southerncatlady6680]

You don't do anything with live power!

[@robbyphillips1758]

Can you come to my parents home? They are fighting heath issues, dad, dementia, mom Copd,

[@RW-to2fy]

Wish Dave hadn’t sped up his voice can’t understand what he saying

[@jsa4864]

Not ghetto, AmeriKan classic ;🤣🤣🤣🤣🤣🤣

[@ryanslats6764]

How much did this replacement cost?

[@diyhvacguy]

We charged $8000 for this install. Their quotes were $15k+