Economizer Logic Troubleshooting

[@jonahswinton8102]

I've been struggling to understand how economizers work for a while now, and this is by far the most in-depth explanation i've seen. Thank you so much for your help.

[@juanc597]

Fantastic , very good and profesional. Thank you sir

[@metaltera86]

As a technical that is about to enter the world of commercial coming from 90% residential, I thank you for this very simple yet informative video

[@TOOLMAN4hvac]

DAVID THIS IS ABSOLUTELY THE BEST ECONOMIZER TUTORIAL i HAVE EVER SEEN!! THANKS

[@gilbertmwansa6943]

Hey David, I just want to appreciate the knowledge you have imparted to me. You are an excellent expert with extensive knowledge and a very good teacher who explains clearly. I now understand the Economizers, Thank you very much:)

[@b3d3g69]

WONDERFUL EXPLANATION!!!! Now I feel a little more confident working on these types of units.. Bravo!!

[@greggstrangways4752]

Absolutely the best video I've ever seen on economizer troubleshooting and even describing just how one works. Very nice job!

[@jeffersonwlafitte]

Best economizer training video out there! Wow!! From your kitchen, no less.

[@orlandorizzo5780]

And A Bag of Doritos!!! HAHAHHA

[@albotiger7268]

Excellent video my friend very easy to follow and understand! Cheers!

[@davidharty3653]

Thanks for all the kind comments ya'll, This is my way of paying back/ forward what my Friend and Mentor Jim Schaper (Now Retired) did for me when he selflessly shared his vast knowledge and experience with me .. Special Thanks to "Jedi Jim"

[@gmguy156]

David Harty Im shocked you dont have more subscribers

[@e.j.griffin1758]

David Harty Greatly appreciated, your economize videos has helped me a lot. Thank you.

[@jiangbian76]

Just have worked in field for 4 months. Learned the concept of Economizer from your excellent videos. Thank you very much.

[@leonelo4852]

I’m not an HVAC tech but wow…what great understanding to be able to explain this so well that a non expert understood it.

[@LindensBloodyJersey]

David, thank you kindly for the precise explanation of these economizer sequences. It’s the best explanation I’ve ever seen and it is much appreciated!

[@mark.r8900]

WOW!!! just an amazing tutorial. The best I've seen on youtube. Thank you so much.

[@syndikatehvac]

Thanks dave. Nice diagram. Easier to understand than reading carrier literature.

[@mrlatnemis1849]

I wish there were more videos like this! Very informative!!! Thank you for putting in the time to do these videos!! 🙏🏽

[@davidwolff4590]

This is a great video, I’ve come back to this video several times for a refresher while working on a economize.

[@nakiapringley5391]

Great video brother 💯💯💯💯💯💯💯

[@davidharty3653]

Thank You, hope it helps

[@ask4george1]

When I was in the apprenticeship program, they never went over how that works. I was always so dam confused on how to troubleshoot that module. Now I finally know, thanks !

[@davidharty3653]

You are welcome

[@EyesofIllusion]

I been looking for a good tech to explain more better on economizer and you sir are number 1 when explaining. I now have a better understanding because of how you explained it. Thank you🙏

[@abbottmechanicalservicesll4464]

24 year tech. Consider myself a pretty good tech. However economizer has always kicked my ask. I always figure it out. Within 15 minutes I figured out an obsolete part. Thank you very much you are simple and very helpful.

[@GabeDT567]

great video . I don't work on rooftops a lot . today i worked on a carrier 2 stage RTU with a carrier economizer control . 2nd stage was not coming on . this video explains what happened and why it did. i wish I could keep this videos in my learning records LOl. this is gold . thanks

[@rajg7037]

This video is amazing and so helpful. I came back to it every time I have to look at one of these controllers. Thank you for taking the time to make this video and share your knowledge!

[@davidharty3653]

Your welcome, thamks for the kind words

[@theunit5939]

David your videos are incredibly informative, your videos help me beyond believe, keep em coming man thanks again my friend.

[@razzthokhee1189]

Great Video,, very informal, thanks,,,

[@guardianmn]

Thanks for the video, David. Very educational indeed, sir more please and thank you

[@mrgreen9086]

Great video really appreciate the knowledge thank you

[@edilsonserafim4784]

Thank you very much for sharing you knowledge I learned so much from you video.

[@Brian17177]

This is an excellent training video thank you

[@hvaclifewithalex4051]

thank you very much, exelent job sharing your knowledge!

[@Mark-nj1jm]

Excellent lesson. Thank you.

[@orlylandy]

Excellent video to bad it took so long for me to find it. Its straight and to the point. Congrats on this video.

[@xraybravo7180]

Great work sir much appreciated it

[@msantiago1976]

Great teaching and explanation. I enjoyed watching your videos & have saved several for future referencing. Thanks for sharing your knowledge.

[@jimcuster5318]

Awesome video, Thank you very much for sharing your knowledge...

[@thoydouangvilay3783]

Awesome awesome video!!!!! Thank you for your clear explanation! Awesome! Thank you!

[@thecurious6721]

Thank you for the great video 👍

[@davidharty3653]

You’re welcome !!

[@garypoplin4599]

I’ve not had a bad economizer to troubleshoot; but, now I’m confident I can efficiently service one if a problem arises. Great overal understanding and traps for new players!

[@hvacr24]

Excellent video Dave, Thank you. Grand Rapids, MI Griffin Hall

[@davidharty3653]

My pleasure, I installed a EMS system at the H&M in the woodland mall in Grand rapids like 3-4 yrs ago

[@hvacr24]

@@davidharty3653 im working on putting in a honeywell jade w7220a1000 in a york unit. i have temp and enthalpy sensors, honeywell sells them a a kit. maybe we can go over how to convert from York's economizer board set up to w7220a1000. just a small 5 ton york, the temps are still well about 53* so no huge emergency.

[@lancerudy9934]

Nice video ,keep them coming. Thanks

[@jaymartin5095]

Fantastic explanation with visuals.

[@bdude1938]

You're awesome! Fantastic video

[@lancerudy9934]

Very nice we all this kind of training. Thanks

[@jmmiller0383]

Thank you! Saved so much time and frustration!

[@davidharty3653]

You’re welcome, glad it helped you

[@Pennconst101]

Great walk through! Thank you.

[@jorgeestrada3894]

Thank you for sharing your knowledge with us.

[@davidharty3653]

My pleasure!

[@brucecrutchfield3473]

Awesome video. Not much economizers down here in Florida so they can be a little more time consuming to figure out. Now I have a better understanding of them, thanks!

[@alexescoto3116]

I have never had anyone simply this in such a way that it actually makes sense.

[@davidharty3653]

Thanks, I did it the way I wish someone would've explained it for me 20 years ago !!

[@maxmaxx284]

Hey David, thanks a lot for the video! Definitely not something you have to do but I am glad you put it up here. I am an apprentice myself and have worked with a few Mechanics now that would sometimes take the Y2 terminal off and tape it or put a marrett on it. I've spent a little bit of time playing with economizers to try and understand them and found that you did need the Y2 terminal. I didn't know however that the module actually communicates with Y2 and can still economize and use a compressor. So far I have been setting up a Time Delay on make with the unit to energize Y2 after Y1 has been energized for a few minutes. This might sound like a ridiculous step to take but it was all I knew haha. Anyways, thanks again for the video it was very helpful!

[@char0507]

Amazing job first one in manyyyyy that helped me tz

[@wildoutrudeboy]

Thx for explaining how economizer works.

[@Mgear1217]

Thank you for sharing this. It helps me understand how it works.

[@davidharty3653]

metal gear , this is why I do these, trying to pay forward all the guys who helped me

[@pincheburro956]

Just found your channel. Excellent information

[@mikemalone6103]

Great video and detailed explanation. Much easier to follow than the OEM explains. When economies fails, most just pull the connector and install the jumper to eliminate the economist because the customers don't want to pay for these expensive option repairs especially when the anted of return is usually less than the expense. Still think you missed your calling, should ,vet been a teacher. Your ability to communicate is excellent.

[@itsmemsti]

Excellent explanation. Thank you

[@daryllneuburger4946]

Great job 👍 thank you so much you made everything so easy to understand

[@shanegreen268]

Thank you so much. Now I understand. Great video 👍👍👍👍

[@eric4467]

Subscribed! Very well explained.

[@soleilsoleil8287]

i love this video and the way the teacher explains thx so much more videos please I m an apprenctice in canada hvacr

[@davidharty3653]

Soleil Soleil Thanks for the kind words, We’re neighbors/ I’m in Minneapolis, Minnesota

[@soleilsoleil8287]

that s awesome keep in touch and more videos when possible i wanna get very good at economizers !!!

[@invisibles362]

Extremely good in5👍

[@khayberadil]

The best explanation ever

[@SlashBurp]

Amazing video! Thank you verymuch!

[@hvacgabe5889]

great video. helped me out today. enthalpy sensor was mounted in unit. mounted outside unit on intake. started to work properly.

[@kabu7073]

Really great, thanks.

[@coachchris548]

Great lesson

[@FireandFrostHVAC]

Great video, thanks.

[@GrandpaJimSchaper]

Since parts are becoming less available for these you might consider a video on how to convert to Jade. The only functional difference is that you need to have the Jade module powered all the time. Not just on a live G signal.

[@ekdeepsekhon3274]

why does the jade have to energized all the time?

[@l.crossjr]

Very nice

[@michaelramirez8535]

Great video

[@PBS-nm1uu]

great video thanks

[@hangngoaigiare]

very clear instructions, thx

[@AZ-gz4cf]

Best tutorial I’ve seen

[@davidharty3653]

Thank you, I appreciate you !!

[@spiromatsikas2473]

Awesome video, thanks for sharing. What if your unit control board only has a y1 terminal and would you bring the y2 wire form tstat directly to your economizer?

[@newagedawn1358]

solid tech information, really enjoyed this vid, you are a good teacher!!!!!!, what happened to the jule ???

[@christiantinsel6483]

Excellent video. I'm a sparky just getting into this stuff. And this helps a lot. Any insights on jade controllers? As a layman they seem to run similar to this but I camt figure out how to modulate the economizer enough to prevent positive pressure in this store.

[@marcelangers9953]

Dave Hart Thank you!!

[@Jimmyyadayada]

Good Stuff!! Thank You

[@davidharty3653]

Glad you liked it!

[@16valve64]

Thanks a lot sir

[@davidharty3653]

Most welcome

[@jakej81]

Could you explain the operation of the w7212 Logic when co2 sensors are connected to the aq and aq1 terminals. Does the co2 sensor take over even when free cool is available? Great video! It was very helpful.

[@fourdragonv2]

Do you have to tell the thermostat that it is a 2-stage, even if it's a 1 stage? Or do you just have to run the Y2 wire as if it did have two stages? Great video. Very informative and thorough.

[@Alain0775]

2 Words: THANK YOU

[@timothypawlowski2286]

David, Awesome video. You mentioned at the end that you can test some actuators with the 9 volt battery. Do you know which honeywell acuators are 9Volt or where I can find that out? I have a carrier unit with a W7212 mounted on top of the M7215a actuator. Thanks

[@davidharty3653]

Timothy Pawlowski M7200 series actuator uses a 2-10v signal for its proportional control The 2 in 7200 tells you that actuator it's a 2-10v

[@timothypawlowski2286]

thanks dave.

[@yrwyreazureAjuhtrea7]

Is the mixed air temp sensor drawn in the right place? other diagrams seem to show it located before the evap coil.

[@mcvaylitt]

So can you by pass it buy jumping 1 and 2? To force cooling?

[@winkhvac62]

Thank you sir.

[@Omar219s]

thanks for this vid

[@mrgreen9086]

What if you put a jumper between y1 and y2 at the terminal strip? Instead of running a dedicated wire for y2

[@kamechanicalhvac2891]

Great video brother ..... Can you make a video on converting the W7459 OR W7212 to a Honeywell jade economizer controller

[@bdude1938]

What about with a standalone Honeywell module? Still need Y2 on a single stage?

[@jackmcdonald7391]

I used a 1 stage tstat on a unit with 1 compressor and an economizer.Will it bring on the compressor in the summer? Or do I need to change the tstat

[@stuartewoldt1513]

Gotta say this is the best video ever. It would be hard NOT to understand

[@Brendan_Clancy]

To test a compressor during spring maintenance can you jump 1 & 2 on the logic board to energize the compressor contactor?

[@davidharty3653]

Yes, Jump 1-2 to test 1st stage compressor Jump 3-4 to test 2nd stage compressor

[@curtbrooks7495]

Thanks man huge help

[@avemarisstella6153]

Thank you sir

[@marshallstephens7356]

Thank you!

[@davidharty3653]

You're welcome!

[@hvacgabe5889]

also there's a power exhaust installed with no literature. can you recommend a site for the literature. it's a York. I can get model and serial if needed. thank you.

[@reedrutkowski50]

Question, how does G get energized without power on R (broken by G open contacts)?

[@davidharty3653]

Reed Rutkowski / The “R” terminal has a constant 24v power supplied to it from the transformer at all times, I just didn’t draw that into my schematic here and drew out my schematic knowing it was hot but without ever showing it. I cant believe I never drew that into my print :)) Good Find Reed and thanks for sharing that, and I’m the guy who’s always preaching to never assume anything....

[@davidharty3653]

Reed Rutkowski/ The R terminal has a constant 24v power supplied to it from the transformer at all times, I just didn’t draw that into my schematic here and drew out my schematic knowing it was hot but without ever showing it. I can’t believe I never drew that into my print :)) Good Find Reed, and thanks for sharing that / And I’m the guy who’s always preaching to never assume anything...

[@reedrutkowski50]

David Harty, Thanks for the reply Sir.

[@lancerudy9934]

Why do you use blue at the oat

[@zack79tampa32]

Thanks

[@xiaojie895]

8:50-9:30 still confusing. why water will leak if only #2 evaporator work? the moisture into the air will condense on the surface of fin and flow down to the drain pan.

[@hangngoaigiare]

water not falling fast enough and the wind from blower fan will blow water all over. When both evaporators work however water less likely be blow off the 1 evaporator due to lower temperature of the evaporator.

[@tradelife2802]

Great video! Definitely helps me understand economizer function a lot better. However, I’m more of a nacho cheese Doritos guy. Still, great video though.