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Tim DeStasio HVAC
Приєднався 22 тра 2021
My name is Tim De Stasio. I've been working with HVAC systems for over 25 years. I've worked as a service technician, installer, designer, business owner and instructor. I've learned a lot over this time, and have made a few mistakes too. But what I know, and what I've learned can propel your HVAC career to the next level. Join me as we take the science of HVAC and break it down in to practical knowledge that you'll use every day.
Psychrometric Saturday: Sizing an Air Conditioner Part 2
#psychrometricsaturday
My basic rules for sizing an AC:
1. Find a range of equipment matchups and airflows that get you very close to Total MBH.
2. Have barely enough Sensible.
3. Have more than enough Latent.
4. Apply 50% of excess latent capacity towards sensible.
5. Size agressively.
#airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
My basic rules for sizing an AC:
1. Find a range of equipment matchups and airflows that get you very close to Total MBH.
2. Have barely enough Sensible.
3. Have more than enough Latent.
4. Apply 50% of excess latent capacity towards sensible.
5. Size agressively.
#airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Переглядів: 95
Відео
Psychrometric Saturday: Sizing Air Conditioners Part 1
Переглядів 27316 годин тому
#psychrometricsaturday Properly sizing an AC requires you to match the load's SHR and the equipment SHF . #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Psychrometric Saturday: Economizers
Переглядів 18714 днів тому
Economizers are an energy efficient way to cool a building only if conditions are suitable for it. Enthalpy comparison is a common method #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign #psychrometricsaturday
Psychrometric Saturday: Sensible Heat Factor
Переглядів 10421 день тому
#psychrometricsaturday Sensible Heat Factor (SHF) is the percentage of sensible capacity to total capacity. #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Psychrometric Saturday: Sensible vs Latent Enthalpy
Переглядів 18428 днів тому
Separating sensible and latent heat from total heat is easy to visualize on the psychrometric chart.#betterhvac #hvac #hvactech #hvactechnician #airconditioning #minisplit #dehumidifier #humidity #homeperformance #heating #ventilation #airconditioning #bluecollar #tradesman #comfort #cooling #heating #iaq #timdestasiohvac #homeperformance #hvactraining #buildingscience #hvactraining #hvacdesign...
Psychrometric Saturday: Plotting Enthalpy and Total Heat
Переглядів 162Місяць тому
The total heat formula states: Total Heat = Enthalpy difference X 4.5 X CFM #psychrometricsaturday #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Psychrometric Saturday: Enthalpy
Переглядів 148Місяць тому
#psychrometricsaturday We pivot into a new property of air- Enthalpy which measures heat, which is a form of energy. #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Comfort Consult Webinar Preview
Переглядів 64Місяць тому
Join me as I demonstrate my Comfort Consult process with Eric Kaiser, Shelby Breger and Joe Medosch. Use the link below or visit @measureQuickUA-cam channel! ua-cam.com/users/liveSjmqHkjosxg?si=0_3_OE0WW7Y2IVSN #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Tyler Nelson with Sauermann Talks Combustion at NCI 2024
Переглядів 151Місяць тому
I stop by the Sauermann booth at the NCI 2024 Summit to talk about the relevancy of combustion analysis in the era of electrification. #betterhvac #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #dehumidifier #ductdesign
Psychrometric Saturday: Evaporative Cooling
Переглядів 238Місяць тому
#psychrometricsaturday Evaporative cooling follows the wet bulb line and trades latent heat for sensible heat. #airconditioning #heating #homeperformance #hvactraining #buildingscience #bluecollar #cooling #comfort #dehumidifier #ductdesign #betterhvac
A Different Kind of HVAC White Shirt Tech
Переглядів 286Місяць тому
A Different Kind of HVAC White Shirt Tech
John Ellis and the Dust Free 16 Filter System
Переглядів 283Місяць тому
I stopped by the Rectorseal booth and spoke to John Ellis, IAQ guru and one of the developers of the Dust Free 16, a MERV 16 filter bank. #airconditioning #heating #homeperformance #hvactraining #bluecollar #buildingscience #comfort #cooling #ductdesign #dehumidifier #iaq
Truck Rant: Take Measurements That Actually Matter
Переглядів 249Місяць тому
TRUCK RANT: TAKE MEASUREMENTS THAT ACTUALLY MATTER Also thank you to my new sponsor Brunswick Supply House which is a family owned national HVAC distributor located in Oak Island NC. Give a small business some of your business.
Psychrometric Saturday: Wet Bulb and Evaporation
Переглядів 145Місяць тому
The farther dry bulb and wet bulb are from each other the more potential for evaporation exists. It's also why sweat droplets cling to the skin in humid weather whereas they evaporate away faster in dry climates. #betterhvac #hvac #hvactech #hvactechnician #airconditioning #minisplit #dehumidifier #humidity #homeperformance #heating #ventilation #airconditioning #bluecollar #tradesman #comfort ...
Webinar Promo: Maximizing Smart Tool Investment
Переглядів 89Місяць тому
Monday, October 14th at 2PM EST join me along with @ConduitTech @measureQuick @TruTechTools where I talk about my process for in home comfort consultations. It'll be on the measureQuick UA-cam channel. #betterhvac #hvac #hvactech #hvactechnician #airconditioning #minisplit #dehumidifier #humidity #homeperformance #heating #ventilation #airconditioning #bluecollar #tradesman #comfort #cooling #h...
Psychrometric Saturday: Wet Bulb and Saturation
Переглядів 1582 місяці тому
Psychrometric Saturday: Wet Bulb and Saturation
Psychrometric Saturday: Refrigerant Charge and Wet Bulb Temperature
Переглядів 2972 місяці тому
Psychrometric Saturday: Refrigerant Charge and Wet Bulb Temperature
Whats New From Conduit Tech at NCI Summit 2024
Переглядів 2592 місяці тому
Whats New From Conduit Tech at NCI Summit 2024
Psychrometric Saturday: Plotting Wet Bulb
Переглядів 1632 місяці тому
Psychrometric Saturday: Plotting Wet Bulb
Psychrometric Saturday: Wet Bulb Temperature
Переглядів 1792 місяці тому
Psychrometric Saturday: Wet Bulb Temperature
Psychrometric Saturday: How to Fix Duct Condensation
Переглядів 6513 місяці тому
Psychrometric Saturday: How to Fix Duct Condensation
How To Check An AC That Trips Circuit Breakers (And How To Check HVAC Motors)
Переглядів 7733 місяці тому
How To Check An AC That Trips Circuit Breakers (And How To Check HVAC Motors)
Psychrometric Saturday: Attic Duct Condensation
Переглядів 3753 місяці тому
Psychrometric Saturday: Attic Duct Condensation
Psychrometric Saturday: Duct Condensation
Переглядів 2793 місяці тому
Psychrometric Saturday: Duct Condensation
Psychrometric Saturday: Supply Duct Gain/ Reheat
Переглядів 3253 місяці тому
Psychrometric Saturday: Supply Duct Gain/ Reheat
Psychrometric Saturday: Supply Air Diagnostics
Переглядів 4293 місяці тому
Psychrometric Saturday: Supply Air Diagnostics
How To Maximize Your Bosch Heat Pump Performance
Переглядів 9 тис.4 місяці тому
How To Maximize Your Bosch Heat Pump Performance
What an awesome video, your explanation and setting worked perfectly for me. When will you make a video on setting for heat during the winter months? Thank you
@@soydelrancho I'll try to do that soon.
@ great! I can’t wait. Thank you
Tim as always nice video again
@@chesstime356 thx!
@timdestasiohvac Thanks for the great videos! 7.57 Latent (equipment cap.) - 5.1 Latent (load calc)=2.47 Latent excess cap. in the equipment. 2.47 x 50%= 1.24 extra latent capacity to add to the sensible equipment cap. 25.3 equipment cap. + 1.24 Latent excess= 26.5 latent cap. for the equipment. 26.5 sensible (equipment cap/NEW) / 27.4 sensible (load calc)= The new equipment will satisfy 97% of the sensible requirement. I thought I learned somewhere that Manual J(load calculation) has a built-in overestimate? Maybe 10%? Is this correct? If there is an overage(safety factor) in the load calc., the 3% shortage probably won't even be noticed and in reality may not be present. The building heat load will be satisfied by the equipment and occupants will be very comfortable. Really enjoy all your content and building science videos! Thanks again.
@@RossHartig exactly. We are close enough.
Hey Tim, great info here! question for you though, with a home in need of 3 tons of cooling, would you recommend 3 ton condenser and ahu or upsize them then derate with j2 dipswitch?
@@MikeJohnson-bz1rp i'd go with a 4 ton AHU, 3 ton outdoor and run it at the slowest fan speed possible to maintain temperature in summer.
Keep making videos!
Great video! I've been trying to figure out how to remotely monitor whether my oil boiler is tripped out on safety, but this doesn't seem to be a thing anyone has ever implemented?? Do you have any ideas? It trips once a week or so, but techs and service don't seem to be able to fix it. I can't find any issues myself either, but it's winter and I need to be able to monitor if it trips before the house goes cold.
Thanks!
Tim, are we going to have to wait until next Saturday to get the next part? You're driving me crazy brother... (Haha, Good things come to those who wait.)
"...Always keep them wanting more...", lol!
@@MrNiceGuyMEGA08 yeah. But youll still get pshycro saturday on a holiday weekend!
You explained in less than seven minutes what my engineering lecturer could barely explain in two hours.
@@xenophiliusrex2501 lol thats why we do on Psychrometric Saturday!
Agreed, but not only that, did you notice Tim never stutters or fumfers (sp) over his words and sentences? Speaking clearly his thoughts is quite rare and shows a lot of talent & knowledge of the material. Makes it must easier to listen to and digest. I still don't understand why Tim isn't more online famous than some of the others.
@HVAC_Tips_Tricks_Calcs you're too kind. My videos are heavily edited. You should see the blooper reel lol.
@@timdestasiohvac Sounds like we may need to see Blooper Sunday!. Many people don't edit and just ramble on...
@HVAC_Tips_Tricks_Calcs 🤣🤣🤣
Thanks for another great video.
@@HVAC_Tips_Tricks_Calcs youre welcome!
As always nice video I really like it
@@chesstime356 thank you
I have a two year old Si-ca 030 I sent is in for re calibration last year and paid the ridiculous $450 this year after sending it is was told it needed $670 of parts. This tool I sent them is in perfect and flawless condition. And they are trying to bully people into basically paying almost as much as a new tool every year. I don’t think I will use Sauerman any more unless they respond and change their business practices.
@@rayblevins9897 ima look into this
Thanks. Little late today! Usually watch this while eating lunch, lol. If I don’t see Psychrometric Saturday by noon I’m thinking I may need to send someone over your place for a wellness check! 😂 I think this series is great. Should be must see for all techs, and good for review.
@@HVAC_Tips_Tricks_Calcs thanks. Yeah, got busy.
Great Videos Tim!
These Bosch units don't hold up. Coil leaks, control board failures, blower motor failures, bent blower motor assemblies from the factory, etc. these units have very low capacity when compared to other systems. Would absolutely recommend that you stay far away from this Midea system, rebranded as a Bosch.
@@MrDeviousdom maybe its just you
@timdestasiohvac why post such an idiotic response? Maybe it's just that I've installed so many of them, I get to see the failure rates higher than most?
@MrDeviousdom maybe youre doing it wrong.
@@timdestasiohvac maybe I'm doing what wrong exactly? Wasting my time responding to a dumbass comment like that?
Another great video. Thanks.
Good stuff, as always, thanks, Tim!
@@EverythingHVACR 💪💪💪
Why does mine run all the time? It starts runs, stops for 1 min, kicks back on and repeats this all day. Very annoying
@@starscabaret that is not normal. A orofessional should troubleshoot.
What does this have to do with psychometric?
@@joshpierce7820 did you... watch the video?
Can you recommend any app instead of using paper charts.
@@chrisgrullon8475 munters psychro app
Anyway to get this to alert you when temps drop or rise to a set temp? Been looking into walk in refrigeration monitoring.
@@aaronpantoja2251 yes i believe so
Good stuff as always Tim. Thanks.
@@HVAC_Tips_Tricks_Calcs thanks
Would that work for 3 wire humidity or enthalpy sensors as well? How about expansion capabilities? That's really clever, great job and video!!
@@andrewsegner468 there is a separate analog input for those sensors. And there is no limit to how manu sjelly devices can connect to the same account and create automations for them.
Great job. I appreciate this vid
I got the first generation Bosch. Has been amazing. Will I get more benefits out of the Ecobee than Bosch BC-100 ? I don’t have a 2 stage air handler.
@@rameygarnett1 you might be able to get an aftermarket ecm motor that will do 2 stage.
I got the first generation Bosch. Has been amazing. Will I get more benefits out of the Ecobee than Bosch BC-100 I don’t have a 2 stage air handler
Which Sonoff is this?
@@nathanbarry9534 the 4 channel
Tim i have a bosch. I need some tips with the HP. And balance point explained. The hp will run below balance point and sometimes itll run say point is 35 itll run at 28 then next cycle is fossil. Is this common?
@@Keith_Mikell if its the Bosch thermostat it may be looking at other factors. I dont know as much about that control.
As always Tim you are the top technician. No way to miss your videos
Love it Tim. Keep them coming.
👍
Hi Tim-great video....have you ever worked with fan handler products? check them out....i am using their heat pump controller on my bosch heat pump in upstate ny with good results
@@bobrumpf2576 what do you like about them?
We is the post video conference?
Great video! I’ve thought of something like this, but I’d like to monitor static pressure to know when it’s time to change the filter!
@@Xdonald331 stay tuned
Do you find this unit noisy in heat mode?
@@emyunster yes periodically it goes into oil return mode and the comp.speeds up
@@timdestasiohvac any recommendations on quieter systems?
Great video... thanks so much. I'm just north of Toronto, ON (CAN) and have the 3ton model with a 2-ton coil but with the Ecobee 3 lite. I have my Bosch running with only a Y1 (though I'm thinking of hooking up the Y2) and it ran perfectly during the summer months. I have my cool differential set a 1F (0.6C) and have ZERO setback, and it maintained a 75f (24C) with zero effort. I did have to lower the air handler fan speed though to increase more dehumidification. Now it's winter in heating mode but I'm finding the compressor fan to be running at a high speed even though the temperature outside is about 37f (3C), and is much louder than in cooling mode.. I wondering if I hook up the Y2 wire to enable the Stage 2 setting and allowing the air handler fan to run at a higher CFM, if this would change how the compressor fan operates? Would the compressor fan increase even more or decrease as a result?
It will be louder in heating mode. The outdoor fan will run at high speed to absorb as much heat into the outdoor coil as possible. The compressor will also periodically speed up as part of an oil return mode if it runs in 1st stage for a long time. Since you're in a colder environment you definitely need to hook up Y2 with reverse staging in heating and cooling as I show in the video.
@@timdestasiohvac thank you so much for your kind response. I'm going to hook up the Y2 wire for 2nd stage cooling/heating but I will likely not require it. Cooling went fine without the need of 2nd stage during the summer (1st stage ran for 1hr no problem to maintain 1F differential). As for heating, so far at 4C (40F), it has been able to maintain the 1F, and because we have low cost natural gas, my furnace will likely switch over at -1.1C (30F) due to the economic crossover. I was just more wondering about the noise level and if a 2nd stage would be louder.
@@chimaican01 I rarely go into 2nd stage in cooling and DEFINITELY don't need it in heating but I am on the NC coast lol. You have the opposite problem. Hook it up and see what it does.
Is this reliable unit? What about availability if spare parts?
I feel like it is. It should have a quality surge protector. Part availability varies from area to area but I haven't heard of the leaky evaporator coils that has plagued other brands.
Can you recommend one? (Surge protector)
@@emyunster AG3000 if you're on a budget, ICM493 gives a little more protection.
Tyler is the Man, the Myth, the Legend!
Another good video ! thanks
very good video !
As always Nice video Tim
@@chesstime356 thank you
Very great in depth analysis. How much does something like that cost on average?
@@Joshua-z7r6w $1200 and up
@@timdestasiohvac Thank you sir for your speedy response. That's not to bad considering how much time you spent testing to find all the major issues. I really do enjoy the building science approach to comfort consultation. Keep up the great work!!
He’s pretty good at this stuff! Lol. Thanks Tim.
Just turned down a R410A condenser swap from a customer that purchased the heat pump himself online. Guy was saying it was a like for like swap and easy install. He had a 3 ton heat pump on a 1300 square foot house, a 20"x25"x1" return grille, a 14" flex duct servicing the return side, and (x10) 6" supply runs. Lol. I asked why he was replacing the outdoor unit and he said that the compressor failed. I bet it did. I was very polite and explained the glaring problems with his system design and told him it was outside my scope of work. He was still a little fanny hurt that I refused the job. As people become tighter than 3 coats of paint, these situations will become commonplace, especially as manufacturers and online distributors cater to selling to homeowners.
Another banger Tim!
@@marconantel7735 thanks!
Salt baes older fatter dumber brother
John is one of the most trustworthy techs in the industry.
Is manifold gas pressure usually off when you install new gas furnaces?
@@boostz32 I’ve seen that.
Bro would saved himself 30mins explaining if he just flicked the fan motor with a screw driver while it was still in place. 😂
I showed this to my boss, because I can't tell you how many times I've been to told to take worthless measurements that contribute nothing to indicating the systems performance.