With the length of the video,my A D D was kicking in at various times but in general I've had "pre-covid" classes specifically designed for equipment selection. Thanks for the video! 🥃🥃🍺🍺🍺🍿👍🏻 Stay safe. Retired (werk'n) keyboard super tech. Wear your safety glasses.
Thank you so much for this video. I need to get a hold of Ed for a couple of questions. I got above 62k BTUH of heating and 24.202 BTUH of cooling. I need to know how to compensate as much as possible for this difference. I got to do a lot of stuff in order to reduce heat loss. The house got a lot of windows. 23 panels in total. I need more info on Manual D. If you guys have the class on Manual D, I will appreciate it so much. He said he had more info on heating before jumping into Manual D. The work is for my own house and it is my first time doing it. Any help is highly and truly helpful and appreciated.
When a company doesn't do a load calculation, How do they know what the sensible and latent heat ratios of the evap coil is? and if the a/c will do the job. I've tried to explain this to my fellow techs and people I work with how important this info is and they don't really care about that stuff or even want to know.
@@crunch9876 Whats not important? Doing load calculation or knowing sensible and latent heat? Some companies have mixed and matched coils with outdoor units. which screws up equipment and lucky if it even cools right.
@@smacleod69 that's common. Upsizing the coil a half ton is called a high efficiency coil. Even air Handler listed for 3 tons can have a 3.5 ton evap coil. But I agree the load calc are important and I struggle to get people to understand that. I do residential and I see units get ripped out regularly because they are under sized. You can swap matching units but I wouldn't recommend it in my area. Sometimes swapping them out gives you an oversized unit if theyve had weatherization upgrades. We also do a lot of ERVs so the unit needs to be sized to accommodate that. Or you'll screw yourself.
interpolation is not averaging, 27700-26800= 900. 900/ 10degrees = 90btu per degrees , so 86 would be 26890, 87 would be 26980, 88 would be 27070, 89 would be 27160 and 90 would be 27250. And so on. That is interpolating. This is assuming a linear scale between 85 and 95 degrees. Exponential interpolation would follow the logarithmic spacing. Averaging worked because you were splitting the delta in half. If you wanted to know what it would be at 93 you cannot average.
Great information and knowledge.
Thanks for sharing
With the length of the video,my A D D was kicking in at various times but in general I've had "pre-covid" classes specifically designed for equipment selection.
Thanks for the video!
🥃🥃🍺🍺🍺🍿👍🏻
Stay safe.
Retired (werk'n) keyboard super tech. Wear your safety glasses.
Great info. And very educational.
Thank you so much for this video. I need to get a hold of Ed for a couple of questions. I got above 62k BTUH of heating and 24.202 BTUH of cooling. I need to know how to compensate as much as possible for this difference. I got to do a lot of stuff in order to reduce heat loss. The house got a lot of windows. 23 panels in total.
I need more info on Manual D. If you guys have the class on Manual D, I will appreciate it so much. He said he had more info on heating before jumping into Manual D.
The work is for my own house and it is my first time doing it.
Any help is highly and truly helpful and appreciated.
GREAT HELP
Yeah boy!
When a company doesn't do a load calculation, How do they know what the sensible and latent heat ratios of the evap coil is? and if the a/c will do the job. I've tried to explain this to my fellow techs and people I work with how important this info is and they don't really care about that stuff or even want to know.
I’m assuming your doing residential… in which case it’s not that important and your competing with people who don’t do that calls either
@@crunch9876 Whats not important? Doing load calculation or knowing sensible and latent heat? Some companies have mixed and matched coils with outdoor units. which screws up equipment and lucky if it even cools right.
@@smacleod69 that's common. Upsizing the coil a half ton is called a high efficiency coil. Even air Handler listed for 3 tons can have a 3.5 ton evap coil. But I agree the load calc are important and I struggle to get people to understand that. I do residential and I see units get ripped out regularly because they are under sized. You can swap matching units but I wouldn't recommend it in my area. Sometimes swapping them out gives you an oversized unit if theyve had weatherization upgrades. We also do a lot of ERVs so the unit needs to be sized to accommodate that. Or you'll screw yourself.
where are the links to manuals or address to download them ? Thanks really appreciate the hard work bringing us the vids
interpolation is not averaging, 27700-26800= 900. 900/ 10degrees = 90btu per degrees , so 86 would be 26890, 87 would be 26980, 88 would be 27070, 89 would be 27160 and 90 would be 27250. And so on. That is interpolating. This is assuming a linear scale between 85 and 95 degrees. Exponential interpolation would follow the logarithmic spacing.
Averaging worked because you were splitting the delta in half. If you wanted to know what it would be at 93 you cannot average.
So did he get his new job for Acca during lunch? This one he doesn’t have it and the manual D one he does?
Yes, the feedback was so good from the class they called me during lunch and made me an offer I could not refuse :-o
2 hours I'll have to revisit!🤣
Watch later list and listen between calls
Very important information, but these videos are getting hard to sit through.
NM lol im blind