HVACR VIDEOS HOUSE PROJECT PART 3

[@VC-Toronto]

Guy I worked with had an energy audit done using the blower door method. Technician forgot to kill power to the furnace, and during the test the gas furnace kicks on. The negative pressure caused the flame to go the wrong way in the furnace, cooking all the wiring in the control section. To resolve the issue a new furnace was installed, billed to the energy audit company.

[@russking303]

It's recommended to pressurize existing homes. Only brand new, unoccupied homes should be depressurized.

[@throttlebottle5906]

lol, DOH.

[@gregmercil3968]

Holy shit. Were the rollouts bypassed or something?

[@force311999]

why did the rollout switch not kick in

[@jasonjohnsonHVAC]

GOOD STUFF CHRIS. THANKS FOR TAKING US ON THIS JOURNEY WITH YOU.

[@russellhltn1396]

We love work. We can watch it all day. That's why we watch. ;)

[@aitorbleda8267]

I did duct seal my unit back in Spain.. the flow improved a lot.. it was installed by the builder without grommets!

[@420IQPlayer]

This is my first comment but I’ve been watching for sometime now and I’ve just got to say thanks for all the information you give us, sure there’s points where you might ramble but truth be told, you’re one of the most logical KZbinrs I watch and love your commentary on most things. Above all else I really appreciate you taking the time to show us these tests you’ve performed and how even just a single gasket can effect the leakage by that much. Thanks again and keep it up, I will probably look back at these videos in the future for whenever I build my dream home

[@hartsfire5706]

carrier infinity is a good choice for your area and climate. i love that you are bringing in fresh air that is so important so you don't end up with a sick house.

[@force311999]

in stead of blown in i would spry foam the top of the drywall in the entire attic and it would seal all the light boxes and plates etc

[@brandoncherry1651]

I been waiting on this vid a master at his craft installing his own unit in his home 💯

[@prophetfgsm]

On those Carrier you want to look at the outdoor unit, I've seen a few rubouts of the discharge against the suction accumulator and where the discharge bends down to the bottom right where the puck protects it from rubbing out. The puck eventually vibrates to the side and it rubs against the bottom, I typically put a piece of hole strap screwed to the bottom.

[@russking303]

Great video! Thanks for sharing. I love watching people get that "where's that damn leak" obsession. Knowledge is addicting.

[@HVACRVIDEOS]

Thanks bud! Yeah my brain can't let things go and I tend to get a little obsessed

[@russking63]

@@HVACRVIDEOS That's called "attention to details". The world needs a lot more of that!

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@gelo1238]

That felt like 2 minute video. I dont know how you do that hah Thanks for update

[@Straight_White_Fatherly_Figure]

I think the inverters within the last year have been better in those units, but prepare to replace the inverter within a few years. Otherwise those units are pretty tough, especially installed vertically. Also i say its usually better to have the extra 5 kw heat strip than to not have it if needed. I dont know how cool it gets in Cali, but in SW FL sometimes it does get down into the 30s. Great work! (If your system ends up having sweating issues because of the slow staging, theres a way to bypass the first few stages when temp outside is above a set temperature. In the settings its called high stage cool latch)

[@KuntalGhosh]

I have a 11 year old hitachi 18k btu with original inverter. Not a single part replaced except indoor blower motor and swing motors. This unit runs 8-12 hours a day in unforgiving indian summer. It runs fine even when outside temperature reach 49c . Also have a 72k btu panasonic vrf in my restaurant and that one is 4 year old , runs 12 hours a day . On all original parts. Regular maintenance is all you need. Clean the condenser once a year. Place them under a shead or at a corner where its cooler than ambient. Although you can't help much when it's 49c air temperature outside but you can atleast protect it from the sunlight. And Japanese stuff is generally well built although i had great service outof local cheap brands but they were not inverters but they did took some abuse. Like my grandma had a videocon 18k btu and she never got it maintained it ran for 15 years without being cleaned once. The the compressor fell out from the mounts due to rust. I have found inverters to be no less reliable than regular air cons. And the amount of money saved in energy outweighs the cost of pcb. All companies here provide decent warrenty. Japanese or Korean or Indian. All provide 5 years of warranty on pcb's. 10 years on compressor.

[@Andersonairchris]

The only people who purchase infinity systems are people who don't work on them 😂

[@Straight_White_Fatherly_Figure]

Nah we install and work on them. This 1 neighborhood i work in i swear has nothing but infinities from every generation. They are pretty easy to fix. But it is "newer" technology obviously and not just a contactor and a capacitor lol... so more problems. Its nicer to own if yoy can also fix it 😅

[@Andersonairchris]

@@Straight_White_Fatherly_Figure I've worked on plenty. I mean they work when they work but all those proprietary sensors and stuff really tick me off when a themistor goes bad and it locks the whole system out for it and you have to reprogram the thing to Get it to maybe work while you get parts. And then there's the blower motor failures ughhh. Static errors for no reason, ect. I'm glad I haven't touched one in a while lol

[@Straight_White_Fatherly_Figure]

@@Andersonairchris yeah i agree lol they add a lot of extra unnecessary pain. They need to be reset sometimes too. Ill be on call and a storm will come by, all of the sudden a bunch of calls from that neighborhood comes in. "Sir, have you tried resetting the breaker?" Will fix just about all of them 😅 old people especially hate it because its such a nuisance.

[@Andersonairchris]

@@Straight_White_Fatherly_Figure yeah that's absolutely ridiculous imo. Imagine having to stop and reset your car on the highway because lightning struck around the block? Lol

[@adamcox1809]

Only guys who feel this way are old timers that don't have a smart phone and can't use Bluetooth.

[@chadhartsees]

Very cool video. I ended up taping up some of my ductwork and air handler.

[@EverythingHVACR]

That software looks awesome. I'm interested to see how you seal the attic. I've installed a few of these. They are great units. Guess you can get rid of that C clamp holding the filter down 😆.

[@HVACRVIDEOS]

Ha ha yep the trusty c clamp will have to come out.

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@raminit1]

I’ve worked on plenty of the Infinity systems. Highly recommend the installation of surge protection. The ICM493 is a must for the condenser. Just having the ability to prohibit operation during an over/under power issue will save the inverter board. Other than that , as long as your static is good the units are great. Are you using the VNA8 or 4?

[@HVACRVIDEOS]

Vna4 and I have a 493 for the indoor unit and a 493 for the outdoor unit

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@danpresson]

I bet its exciteing putting in a new system

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@Infowarrior-45]

Make sure to get the Infinity T-stat. The company I work for was installing Infinity Heat Pumps with Honeywell T-stats, and after going to the Infinity class, Carrier said, never put in an Infinity System without the Infinity T-stat.

[@Straight_White_Fatherly_Figure]

Yeah thats basically illegal lol. Selling someone an 18-20 SEER unit to only give it the option of 14-16 SEER 1 speed. I laugh going up behind companies like that. They care more about commission than the customer 😆 no offense to you personally, i know we all have bills to pay. Thats the companies issue.

[@force311999]

if the unit was in the attic then yes but since it is in a closet there is no loss just seal the ceiling good were the plenum goes up threw

[@GlenS123]

Great blower score, personally I stopped at 3.0 ach@50 because local code states I must install Mechanical Ventilation which I didn't want to do.

[@alexanderkupke920]

I wondered how to interpret those values actually. Here in Germany most new homes get a Blower Door Test, it is not mandatory (It might be by now following latest standards though), but you can get federal funding for energy efficiency above current standard, and to get this a test is required. I do not know the different values for all those different energy efficiency standards, but a new building without forced ventilation (a regular building here without any systems to exchange or treat inside air, you vent regularly by just opening a window. Also usually no air conditioning) the test result should not exceed an exchange of 3 times the building air volume per hour. This is why the volumentric plans for the building are important, as you have to now the air volume for comparison. Test is run at same pressurisation of 50 Pascal differential pressure. As soon as you have forced air exchange, which in most cases is not a central air handler, but small autmotaded heat exchanging ventilation fans per room, you really will find central air handlers with durctwork in larger and usually commercial buildings here. the value goes down to 1.5 exchanges per hour. If you spent the money on a high efficiency passive house, 0.6 is the maximum allowed. I am not so sure about the units used, but if I remember he got to 935 cfm. that is less than 27 m³. So either I got something wrong with the units, but just calculated the value for my 144 m² house (about 1550 square feet) and the allowed value for my house would be about just over 1000 m³ per hour... Either I got the documentation i found wrong or our required values surprisingly suck big time, but anyways, he really got a great value. Looking at how many different efficiency standards there are an how many progressions we had over the years, I guess I am simply looking at the wrong values or misinterpreting something early in the morning.

[@hvacslayer2929]

That duct work is gonna be fun, how’s the room up in the attic ? Id rather trying adding thermal barriers under the roof instead adding in blown insulation. Once you add that blown insulation in that’s it you’ll never want to go back up there.

[@force311999]

spray foam

[@painfreehvac]

your heating load wont be an issue at all once your top plates are sealed... that will significantly improve your numbers

[@airbluehvac]

Hey. im sure you know but ductwork area to the attic is around 40% of house sq ft. and ducts have value of r4-r8. if you blow insulation over ducts and cover ducts with blow in insulation you reduce heat losses significantly

[@rayraap3905]

Two ton I guess you really like your house warm in the summer

[@toshihitsu1989]

Actually, I like that you're using a heat pump system for some reason in the United States. There's such a stigma against using them even though I think that's the way of the future. Is heat pumps to replace gas as a heating source.

[@FrNMGuy]

I was thinking, "BATS IN YOUR ATTIC? YOU SURE THEY ARENT IN THE BELLFRY? START CHARGING RENT!" But now I feel better with the clarification.

[@wtfux]

Oh, wanted to mention the new joint recommendations from the CDC and ASHRAE (draft) on air handling are out, 5ACH is their rough recommendation and they point out MERA filters and UVGI.

[@Bobherry]

carrier infinity is very good however be sure to look at the factory solder joints in the outdoor unit I have installed several where they start to leak when we kick it on for the first time. Also personally I would have gone with a 2.5 ton for a worst case scenario day. Remember also that if you get the air handler installed and this winter decide its not making enough heat you can always get a 5kw heat strip and throw in it as well. 5kw generally only needs a double pole 30 amp breaker to power it and based on the system being small you should easily be able to get away with that size.

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@tekjunkie28]

A load calc is already oversized 10-15%. No need to oversize

[@fshn76]

Chris, this has been really interesting to watch this play out. Thanks for the documentation.

[@electroimpex8897]

1st. Greets from Germany

[@bago49]

Man i know you did all the fancy stuff but 2tons for that entire house 😮 sounds crazy. Im waiting to see future updates

[@HVACRVIDEOS]

Science!!!

[@ConnorCoultis]

It’ll work fine. Most systems are grossly oversized. My house called for 20,000 btu cooling as per the heat gain calc. I put in a 1-1/2ton and it work’s awesome, great dehumidification. Probably could’ve been a 1 Ton and still work well.

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@zx14dudeee]

Science + balls of steel 😂

[@longhornchris5919]

I’ve an awful feeling that two tons is going to be undersized (heck, I’ve got 3 tons for a similar sized house here in soggy south east England, but we do have humidity, but… still…) that said, I’ll be happy to eat my words when it works just fine even in the heat of a Southern California summer. Really appreciate the video and all the information. Now, I’m just going to seal off my loft hatch (which until I saw your investigations, I always kind-a thought I should but couldn’t ever be arsed to do it 😊)

[@richardbartlett6932]

Uk massively oversize air conditioning. Always have. Do a proper heatload calc and see. Bedrooms for example rarely need more than a kw. (I understand a lack of 1-1.5kw splits) Most uk contractors start by saying "it's a 2.5kw in this room but oh better bung in a 3.5kw just to be sure.." Uk is nowhere near as humid as many parts of USA and Americans understand to remove moisture you need to run longer, you can't do that if it's oversized as you reach set point too quickly. Uk is obsessed with getting down to temp as quickly as possible as if that means it's a properly designed system. It's not.

[@longhornchris5919]

@@richardbartlett6932 I do agree Richard. 5kW (1.5 tons I think) for kitchen / utility / breakfast room was installed and another 3.5 kW for living / dining room (another ton) and 2.5 kW for master bedroom (think that's 3/4 ton, I really can't get my head to work outside of metric measurements 😀) which is just ridiculous. The master bedroom is barely 1 Kw I reckon. The rule-of-thumb method was used as a load "calculation" and when I asked about the over-sizing, was told the units modulate down. Which they do. But in the shoulder months, they do suffer from poor humidity control. That said, when looked at for heating load sizing, it is far better. All a bit of a mess, though, as you say.

[@mishaj2238]

I was the guy that mentioned some months ago that you will not be happy with the load calc sizing being installed. I designed and sold around $100M worth of work in several states from Boston to Miami. Good luck with it..

[@HVACRVIDEOS]

Time will tell

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@kathrynwhitby9799]

just goes to show, how much good insulation and sealing of gaps pays off in energy management.

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@faizpratamaedwanmaulana8016]

2nd. Greets from Indonesia

[@carloscetz8314]

You should go for a dual fuel system

[@Ali.A72]

Aren't you going to need the heat strips while the heat pump is going into defrost? Otherwise it'll be blowing cold air while it's defrosting for a few minutes. It's also nice to have for backup just in case something should fail on the outdoor equipment.

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@BuilderJay]

I was thinking of the same thing.

[@Jbowen590]

Are you worried about system going into defrost during heat cycles and not having strip heat to temper air coming back into the house?

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@crabmansteve6844]

"Messy garage" thats a very clean garage as far as garages go. Lol

[@joeyf504327]

heat strips are called Emergency Heat for a reason. For an emergency.

[@MariosACandRefrigeration]

how are you adding more cooling to the office ?

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@tweake7175]

Not a bad blower door number. At least its now worth using an erv which will reduce load a little bit. Its better to be a little undersized, worse case is put some clothes on.

[@urbanbshvac]

Heck yeah bud 👍 cheers

[@dalemarr70]

You never mentioned sealing the bath & kitchen exhaust fans. For the test.

[@HVACRVIDEOS]

Yes they were sealed

[@belljoxer]

Why is is such a big issue to go up a size (from 2 to 2.5 ton i assume) if you get a multistage system? Most of the time you will be running on the lower stage except when it's very hot or very cold. When it is, if you're a oversized a bit the system can toggle between full and the lower stage rather than short cycling on and off. I'm very glad I installed a two stage infinity system over 10 years ago. Evaporator leaked aft 9.5 years but the coil was covered under warranty.

[@robertedgemont]

Where did you get the die cast crane in the back of you on the book case?

[@HVACRVIDEOS]

It's a Lego crane my daughter built for.me

[@robertedgemont]

It’s looks like a die cast from a distance. Very nice.

[@heinrichgerhardt6119]

The 2 tons of cooling and heating load that you guys calculated are basically what the house continually either loses or gains based on heat transfer through leakage, insulation, etc. But, don't you need some excess cooling/heating to rapidly cool or heat the house after you've been away all day at work? Or you happen to like the house/bedrooms to be cool overnight in the winter and then quickly heat in the morning? Question is, how much excess capacity is appropriate for those scenarios?

[@throttlebottle5906]

don't forget about other gains from more appliance usage than normal, or more humans than normal(parties/gatherings), people running in and out the doors. but you sure don't want to oversize too much or you wont dehumidify enough and it short cycles to death, although it's nowhere near as bad with modulating vfd equipment. silly example: you don't want to run a 1500HP vehicle to the corner store and back every five minutes. lol

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@Straight_White_Fatherly_Figure]

If you oversize your system for those few times where you want to cool off for convince after work, you may end up high humidity issues. This infinity system specifically has a wide range of speeds that it cools at depending on the demand. Its a completely variable speed unit, including the compressor. You can also schedule these units to cool off 30 minutes before you get home, or you can simply open your phone and turn it down a degree or 2 while coming home from work.

[@force311999]

i think it is most efficient to keep the temps constant all the time so that would not be a issue????????????????

[@Drewdayz2419]

Shit I need help, 600 square foot house with 1.5 ton unit and still hot as hell, won’t get below 78 in the day, walls brick and 2x6 don’t know about insulation, attic has blown in insulation at 20inches, during winter it doesn’t get cold so I don’t it’s a insulation problem,

[@fluke196c]

Have an affiliate link I can use to buy blower door?

[@HVACRVIDEOS]

If you go to trutechtools.com you can simply use my offer code bigpicture on check out and you get an 8% discount on most items and I get a commission from that

[@mauricionardin1863]

Oi in Brazil parabéns 💯.

[@ngkful]

Serious question - why don't you just put the refrigerant lines straight to the rooms? It seems you are massively overcomplicating things using ducting. Can you even control the temperature in individual rooms with that?

[@Straight_White_Fatherly_Figure]

Are you talking about installing a ductless multi zone mini split system instead? Thats even more complicated. Installing 1 system is better than installing multiple. Especially if the duct work is already there

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@cayden9224]

Is the air leakage really that important because it's already inside?

[@HVACRVIDEOS]

What If it's in the attic?

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@cayden9224]

​@@HVACRVIDEOS I meant the air leakage from the air handler because it's just going to be blowing into the house anyway. I realized that you said that the closet that the air handler is in is open to the attic.

[@m9ovich785]

Why would you be concerned with a Little bit of Leakage from the unit that is inside the House?? If the room is sealed from the attic space, all that leakage will be inside the House... Mike M.

[@HVACRVIDEOS]

I will discuss this on my livestream this evening 6/5/23 @ 5:PM (pacific) on KZbin, come over and check it out kzbin.info1ej-23fZO5c

[@dd6892]

Don’t use flex duct you will see less cfm

[@HVACRVIDEOS]

If it's installed correctly and sized appropriately flex duct is just as good as anything else

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@wtfux]

Guessing that's not a ground source heat pump then...

[@videos10]

Just stick a Goodman in there

[@richardbartlett6932]

After all the talk you went for a pretty safe uninspiring option. Hardly state of the art tbh.. Your house your money i guess

[@miaudottk9080]

Do you really want to have a house this airtight? As a self-proclaimed cat I would have oversized the AC and call it a day.

[@zacbaker6240]

Please don’t do flex duct

[@HVACRVIDEOS]

Why not?

[@zacbaker6240]

@@HVACRVIDEOSjust feel like you’re doing all this work, which is awesome to see and very informative, hard pipe is just better for airflow. Not saying you don’t know that already

[@steveblake8766]

461 Thumbs uP

[@tonyking9235]

DONT GET THAT FOAM WHAT EVER YOU DO .

[@reneewhitaker6342]

why not?

[@tonyking9235]

1 IF YOU SUFFER FTOM ALLERGIES . 2 IF THAY DONT GET THE MIX JUST RIGHT YOU COULD LAND UP WITH A HOUSE YOU CANT LIVE IN UNLESS YOU HAVE IT ALL TAKEING OUT . AND ONE OTHER THING TO LOOK IN TO IS CAN YOU GET A REPORTAGE ON YOUR PROPERTY IF IT HAS THAT FOAM IN IT . CHRISS STICK WITH THE FIBERGLASS MATTING . THE MOST IT WILL DO TO YOU IS MAKE YOU ITCH IF YOU TOUCH IT . THERE ARE REAL HORROR STORYS WHERE THAT FOAM IS CONCERNED. OK . NOW GET BACK TO WORK YOU BUM . 😊😊😊

[@CGGC0202]

Seems like a little nitpicky to me, there are a lot of wasted hours here

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@coldfinger459sub0]

Electric strip heaters you can use them for precise usage calculations. WATTS DON’T LIE. To see exactly how many watts of power through the winter it takes to heat your home . Measure and record your run times.. And then compare to heat pump . Or gas furnace.. And remove the electric heat strips later . It’s your own house you can afford to do it.. just a little time in extra experimentation. I that’s what I’m going to do on my house put them in test through one winter catalog take recordings . And then take them out and compare to the heat pump .

[@Straight_White_Fatherly_Figure]

You can also just shut down the electric back up heater through the programming instead of installing/uninstalling. But yeah great recommendation!

[@coldfinger459sub0]

@@Straight_White_Fatherly_Figure the only reason for uninstalling. For the few individuals like us who are real picky and anal and over intentive on procedures, even though it makes only little difference will want to get rid of that little slight extra static resistance and air disturbance of the electric heat coils just because.. I live in San Francisco, California, where the electricity utility rates are insane . Usually nobody gets charged the base price of $.24 per kilowatt hour. Everybody goes over and get penalized for using too much. $.32 a kilowatt hour $.34 a kilowatt hour is the normal and for those of us who use even more electricity $.42 per kilowatt hour to $.48 per kilowatt hour or more. Here in California the more electricity, you use the more they charge you . So, using electric ⚡️ strip heaters as a heat source is financial suicide .

[@HVACRVIDEOS]

I will discuss this on my Livestream this evening on KZbin 5/29/23 @ 5:PM (pacific) come on over and check it out kzbin.infoc-zUt2l1HmU

[@Irilia_neko]

There is no air exchange in your project, to get fresh air ?

[@HVACRVIDEOS]

Yes I plan on bringing in fresh air