208/240 on a transformer- does it matter?
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- čas přidán 29. 08. 2024
- Today I quickly show you the difference it makes if you attach your incoming voltage 208 to the 240 side of a transformer.
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Great video I can’t tell you how many times I run across that and have to explain it to new tech’s
You and me both!
And then you got people who wanna sit there and argue with you especially electricians. And a lot hvac people want to argue and say it's the same thing also this isn't residential You have to tap your Transformers the same as your incoming power just like he said in the video
Enjoyed your video. As an industrial electrician who deals with controls every day, ( and HVAC isn't my primary trade ) machines / pumps / meters / sensors ARE, I've always wondered why most rooftop HVAC systems wiring are so damn sloppy.. 👈Sorry, not trying to knock your trade my friend, but that big old tied together bundle of wires would be shameful if I wired something like that... I know you guys don't WIRE these units, they're wired in the factory, but what's the reason for all the sloppy wiring ? They make wiring troughs with easy access covers on them.... ! 🙂✌️
Good video. You will likely run into buildings that are either single phase 240/120 volt, 240 volt 3 phase delta with a high leg, 208/120 volt wye systems or 480/277 volt wye systems. There are several tutorials on the different systems on CZcams. If you do work in the US you need to know what you are dealing with. I liked the title 208/240 does it matter? Ha ha only if you want things to work right!
Thanks
What is the difference from a a single phase and a 3 phase)
Ive seem that too. Never really had a problem as a result but I switch the feed to the proper one just in case
Good for the new guys! Keep up the good info.
I came across this issue this afternoon. As a older technician. It stumped me until I checked the voltage and realized it was 208.😳
That fool literally grabbed it with his fingers...😂
That’s what separates the men from the boys
@@rjeepster8640 letters on a tombstone...lol
Looked like a insulated terminal. Nothing manly about that. Guess we know who is the fool...RIP
@@joehead1294 yup its insulated until it slips out if someone screwed up the crimp and then all of a sudden its not insulated anymore. I dont wear a seatbelt cause of my driving. Same reason id use pliers to pull that connector...😉
@@joehead1294 what if he dropped it and it shorts out? Could cause more problems I’ve found it’s not worth it, just turn the power off
Seen that before thanks for sharing 👍👍
I constantly run into this. Installers just will not check and change it. Sometimes the transformer will fail. More so if it's 240 and wired 208. Check voltage and wire it correctly.
Glorious beard
Serious question sounds little dumb but left me puzzled for years. Lol
If I have 213 incoming volts should I leave transformer at 240v or should I change it to 208 v. The voltage is closer to 208 but voltage is over.
I would love to hear your thoughts on the matter. Thanks
I recently came across a cooling unit that was showing a phase fault do to 208 not being 208 while under load.. The unit needed 220 volts and wouldn't run properly if the voltage wasn't in the 217-223 voltage range.. I played with the taps on the transformer for 2 hours and finally got the voltage right.. There was a "electrical/AC technician" that had been on site and acquiring amp/voltage load data for a week until I got there.. Needless to say he got sent home with his tail between his legs.. I think either he was incompetent or he was riding the clock and burning the customers ass.. He sat there looking at a computer for a solid week and couldn't figure it out..
Great video! 👍
Does that apply to Indoor blower too, will it hurt anything on the indoor motor because is rated to 208/230 V but it’s actually getting 240 on both power lines ?
Wouldn’t it be safer to shut the power down before disconnecting the transformer? ☠️
yes it would
What would be the cause of my Transformer blowing on the 208 side it's not popping on the low-voltage side and it's not popping the fuse it's just popping it on the 208 side
Why is the name 208/ 240 insted of 208/230 which is what the tranformer says