Purchased: August 2023 - still works GREAT!I th-cam.com/users/postUgkxxsUnXhGsSJLim_XnMHyQK0u3XVaW-CGn live in a studio and during the summer it gets scorching hot - really old building with no ac units. I can’t express how EASY it was to install. This unit has been a life savior during the summer and some days during other seasons where it can still be a bit warm at night. In this small place is my friend, a husky, poodle mix and myself. We need AC - lolI don’t use the dehumidifier option - I’m not sure if it will leak in my house, since I did not install the small draining hose that came with it. May look into it late but I don’t worry about much humidity in the apartment. I don’t understand why the negative reviews since all things mentioned, I personally did not find issues with. Definitely worth it!
*Love this unit! Using upstairs in my sons bedroom **Fastly.Cool** and he’s finally able to be comfortable upstairs without me freezing downstairs. Works for more sqft than expected!*
I replaced a transformer like this today. Unit was dead as the control board had no power. My 4 year old Trane unit had a spade connector and the Trane dealer who installed the unit would not sell me an OEM replacement. ( they want to do it ) I like DIY. So a local appliance shop I'd been going to for parts had a comparable transformer with wires, not spade cxt. So I had seen your video and after 30 years of wiring, appliances, car repair, etc. And an EE degree, I realized I had been using wire nuts WRONG! I would twist the wires together first. Probably taught by my dad who was taught by his. Thank you! I also stopped by Home Depot and bought the "baby orange" wire nuts. I had a mixed assortment in my workshop and was always hmmming and hawwwing with the smaller sizes. You're right. These are perfect and I had obviously long ago used up that selection from my mix. Now I have 30 more ( minus 4 ) .
Great Video! I've watched a few of your videos today ('cause its August in Texas). You provide just the right amount of info and don't cloud my ignorance (more) on HVAC stuff by trying to show too much. And you're a GREAT teacher! You've saved me a few hundred bucks - THANKS!
I have 3 wires on my secondary. Hammond part # 166L25 Green , Green/yellow, Green Is the Green/Yellow common? They gave me two secondaries? Could I not have just run an extra wire to a single secondary to run my two items?
Hello great video I have an issues with thermostat turning off and on again the message said looking fir calibration on heat or cool disable the house is cooling but thermostat turning off few time a day and reboot after few minute ecobee was wondering if thermostat getting enough power ?thank you
Sorry to call you out but you said NOT to twist the two wires together when using a wire nut. However, you TWISTED the first two black 120v wires together and put on the wire nut. Only the rest of the wires were NOT twisted with a wire nut so kinda confusing... I'd also read a recent comment from someone saying the white wire is actually a neutral wire and NOT a common wire in this video, is that true? Please advise...
For home gas furn Do the 24v output wires need to be wired a certain way or no matter ...and how many amp fuse coukd i install inline 2-3A?...orig 8yr old trans went bad no melt......i repkaced it and it worked for 4 days then melted and failed...any ideas?...furn is 8yra okd trane gas...control board fuse did not blow.
Great video. Would you please let me know how I can access the transformer on the heat pump in my condo apartment. The thermostat has no 24v power coming to it. Thanks
I just replaced my fan relay/ coil. Outside unit kicked on but not fan. I noticed coil side was hot to the touch. After cooling down and plugging coil back in. Everything worked fine. What caused coil to get loose? Short maybe? Capacitor? So confused. Great vid by the way.
Might want to keep in mind that electrical tape only true purpose is to tape the base of the wire nuts to the wire so they do not become lose from vibration, temp changes, etc.. I am as guilty as anyone using black tape as an insulator in a pinch but it is not designed for that and is against code (along with not taping the wire nuts). If electrical tape last a year used as an insulator its some really good tape. I have seen it last longer in very friendly environments. But the whole "Code" thing depends on where you are working I suppose. I just got in the habit of putting a wire nut on everything - even to terminate an unused wire - then putting a couple wraps of tape on em. Not trying to "call you out" on anything, just trying to help some of the new techs who might be electrically impaired... and now I hear my Fathers words " do as I say, not as I do".. yep, He is a retired electrician..hehe..
question: ok, bad transformer in heat pump. However the wire on the com. is red, so I'm assuming I connect this one to the white wire on the univ. transformer. Is this correct? Also, the white wire is on the 240 of the old one so I would connect the white wire to the orange for 240 the sec'd wires don't matter in orientation. Is all of this correct? ty
Does it matter which 24 volt wire you use to splice in the fuse coming off the Transformer? For example years is yellow and blue, could I use yellow or blue or only one of them?
So, if I got a 2 wire (red 120 and black 120) coming into the furnace, should I wire 1 to common and 1 to the 240v, in case that I'm runninn 240 to the furnace?
You say you want to touch the wires to something to ensure they are not hot (powered up), but considering the way that you cut the wires (i.e. both leads at the same time), you're going to know right away whether those wires are hot because they are going to arc and burn holes in the cutting edges of your wire cutters. When you are working on hot wires (or wires that you think *might* be hot), only cut one wire at a time.
Thank you so much! I managed to change my transformer out but ac still didn't work. Turns out I had a loose connection on a wing nut. If you hadn't brought it up I would've never checked
18 gauge copper is used on class 2 systems with no larger than 40 VA transformers. On very long runs (over 100') you will need to upsize the wire to 16 gauge or possibly 14 gauge on extremely long runs.
I have a Heil heating and cooling system, where is the transformer located? My thermostat doesnt have power. I am an engineer and could fix it myself if I know where it is located. Tyhanks
In almost all residential HVAC systems with remote condensers, the low-voltage control transformer will be located in the gas furnace since it must also power the control board for both heating and cooling functions.
Select the primary voltage wire that matches your measured supply voltage. If you have no volt meter, select the 240 wire since that's the normal residential voltage supplied by utility companies. The 208 volt utility systems are usually found only in industrial areas. HVAC units are rated at 208-230 which allows their use on residential as well as industrial applications.
i am unclear on the connections. Just want to make absolutely sure. The common connects to one hot phase? In the case of 120 the black wire goes to neutral? In the case of all the other voltages the com wire goes to a hot phase and the other wire goes to a second second hot phase with no neutral involved?
i got a goodman unit...i install the fan motor.the capacitor.and the contactor.and still my fan or compressor wont start......my blower inside the house urns on.please help
You'll need to measure the voltage on the contactor operator coil. If you have no voltage there, you may have a bad thermostat or control wire break between the thermostat and the contactor coil. That wire generally runs from the furnace to the outside condenser unit. It could also be an incorrectly wired thermostat. Often the required jumper wire between the rh and rc terminal of the thermostat is left off by mistake.
The red wire is used on 208 volt power system. It's common in industrial areas where three-phase power is being supplied (120/208 wye connected utility transformer bank). The utility companies prefer that type of system for industrial applications since it's easier to balance the loads across individual supply transformers. That system is rarely used in residential applications.
You mean to say that the white is neutral, not common. Common is the 120v ac but the other colours are other voltages and common does not apply. 240 has no neutral or common. White is neutral or a load neutral but only on 120. Please remove your shitty video as it's very poor quality and very inaccurate and misswiring this will cause damage.
Purchased: August 2023 - still works GREAT!I th-cam.com/users/postUgkxxsUnXhGsSJLim_XnMHyQK0u3XVaW-CGn live in a studio and during the summer it gets scorching hot - really old building with no ac units. I can’t express how EASY it was to install. This unit has been a life savior during the summer and some days during other seasons where it can still be a bit warm at night. In this small place is my friend, a husky, poodle mix and myself. We need AC - lolI don’t use the dehumidifier option - I’m not sure if it will leak in my house, since I did not install the small draining hose that came with it. May look into it late but I don’t worry about much humidity in the apartment. I don’t understand why the negative reviews since all things mentioned, I personally did not find issues with. Definitely worth it!
*Love this unit! Using upstairs in my sons bedroom **Fastly.Cool** and he’s finally able to be comfortable upstairs without me freezing downstairs. Works for more sqft than expected!*
I replaced a transformer like this today. Unit was dead as the control board had no power. My 4 year old Trane unit had a spade connector and the Trane dealer who installed the unit would not sell me an OEM replacement. ( they want to do it ) I like DIY. So a local appliance shop I'd been going to for parts had a comparable transformer with wires, not spade cxt. So I had seen your video and after 30 years of wiring, appliances, car repair, etc. And an EE degree, I realized I had been using wire nuts WRONG! I would twist the wires together first. Probably taught by my dad who was taught by his. Thank you!
I also stopped by Home Depot and bought the "baby orange" wire nuts. I had a mixed assortment in my workshop and was always hmmming and hawwwing with the smaller sizes. You're right. These are perfect and I had obviously long ago used up that selection from my mix. Now I have 30 more ( minus 4 ) .
This video helped me diagnose a problem that I was having in school regarding a transformer.
Thank you, sir.
Awesome video you explained it very good for guys like me that don't know anything about AC but want to learn. Thank you.
I’ve scoured through several looking for this description. Direct and to the point! Thanks
Hey i seen your video thanks my teens really appreciate the ac i wouldn't have been able to fix it without your video
Great Video! I've watched a few of your videos today ('cause its August in Texas). You provide just the right amount of info and don't cloud my ignorance (more) on HVAC stuff by trying to show too much. And you're a GREAT teacher! You've saved me a few hundred bucks - THANKS!
Thank you. I needed to know what to do with the extra primary winding wires.
Liked…..subscribed.
THANK YOU! Wealth and very valuable information. Help me with my install of my Rheem Transformer.
Very well explained thank you so much for taking the time to teach to everyone
GREAT DETAILED VIDEO!! THANKS!!
Excellent instructions was able to change the transformer without much difficulty. Thanks
Thanks for the info. Helped me with the transformer install
Thankfully you have the exact same setup as me so this helped immensely.
He said not to twist the wires when using a wire nut but he twisted the first two wires. 🤣🤣🤣
Lmao 🤣
He didn't twist them?
I like that circuit breaker on the transformer!
Another concise teaching video made simple to understand, thanks very much.
I have 3 wires on my secondary.
Hammond part # 166L25
Green , Green/yellow, Green
Is the Green/Yellow common?
They gave me two secondaries?
Could I not have just run an extra wire to a single secondary to run my two items?
Hello great video I have an issues with thermostat turning off and on again the message said looking fir calibration on heat or cool disable the house is cooling but thermostat turning off few time a day and reboot after few minute ecobee was wondering if thermostat getting enough power ?thank you
the best by far video ever. thanks.
Cool stuff! I wish I would have learned this before I left the trade.
Do you ground any of the commons to chassis?
Sorry to call you out but you said NOT to twist the two wires together when using a wire nut. However, you TWISTED the first two black 120v wires together and put on the wire nut. Only the rest of the wires were NOT twisted with a wire nut so kinda confusing...
I'd also read a recent comment from someone saying the white wire is actually a neutral wire and NOT a common wire in this video, is that true? Please advise...
logged in to like & subscribe, THANKS GUY
A shocking experience 👏👏👏
For home gas furn Do the 24v output wires need to be wired a certain way or no matter ...and how many amp fuse coukd i install inline 2-3A?...orig 8yr old trans went bad no melt......i repkaced it and it worked for 4 days then melted and failed...any ideas?...furn is 8yra okd trane gas...control board fuse did not blow.
Great video.
Would you please let me know how I can access the transformer on the heat pump in my condo apartment. The thermostat has no 24v power coming to it.
Thanks
I just replaced my fan relay/ coil. Outside unit kicked on but not fan. I noticed coil side was hot to the touch. After cooling down and plugging coil back in. Everything worked fine. What caused coil to get loose? Short maybe? Capacitor? So confused. Great vid by the way.
This video was incredibly helpful and we learned a new trick for getting a great connection using wire nuts!! Thank you!!
Might want to keep in mind that electrical tape only true purpose is to tape the base of the wire nuts to the wire so they do not become lose from vibration, temp changes, etc.. I am as guilty as anyone using black tape as an insulator in a pinch but it is not designed for that and is against code (along with not taping the wire nuts). If electrical tape last a year used as an insulator its some really good tape. I have seen it last longer in very friendly environments. But the whole "Code" thing depends on where you are working I suppose. I just got in the habit of putting a wire nut on everything - even to terminate an unused wire - then putting a couple wraps of tape on em. Not trying to "call you out" on anything, just trying to help some of the new techs who might be electrically impaired... and now I hear my Fathers words " do as I say, not as I do".. yep, He is a retired electrician..hehe..
great video thanks a lot please make more
question: ok, bad transformer in heat pump. However the wire on the com. is red, so I'm assuming I connect this one to the white wire on the univ. transformer. Is this correct? Also, the white wire is on the 240 of the old one so I would connect the white wire to the orange for 240 the sec'd wires don't matter in orientation. Is all of this correct? ty
can you connect more than one transformer to the 240v for more than one UV light? And / OR can you connect more than one UV light to one transformer?
Does it matter which 24 volt wire you use to splice in the fuse coming off the Transformer? For example years is yellow and blue, could I use yellow or blue or only one of them?
So, if I got a 2 wire (red 120 and black 120) coming into the furnace, should I wire 1 to common and 1 to the 240v, in case that I'm runninn 240 to the furnace?
Your gas furnace should be 120v. If you have an electric furnace then it would be 240v.
very good vid keep posting more and i'll watch and learn
You say you want to touch the wires to something to ensure they are not hot (powered up), but considering the way that you cut the wires (i.e. both leads at the same time), you're going to know right away whether those wires are hot because they are going to arc and burn holes in the cutting edges of your wire cutters. When you are working on hot wires (or wires that you think *might* be hot), only cut one wire at a time.
What site I go to get that transformer
Thank you very much
orange can be common on some transformers. found out the hard way.
Thank you so much! I managed to change my transformer out but ac still didn't work. Turns out I had a loose connection on a wing nut. If you hadn't brought it up I would've never checked
What a rookie
@@alexramos1435 people are here for a reason, get over yourself
Good job
what gauge wire is on the secondary 24 v side of the transformer
18 gauge copper is used on class 2 systems with no larger than 40 VA transformers. On very long runs (over 100') you will need to upsize the wire to 16 gauge or possibly 14 gauge on extremely long runs.
Love the Built in breaker transformer. Too bad the site is down
The website is down? Or not found? what's up with that?
(4:16) That's exactly right: don't twist the wires. Let the wire nut do its job.
i can not find your website.
How is the breaker switch on transformer wired to?
thanks great vid
Very helpful
Great video
Where can I buy one of these transformers
The transformer store
@@stinkydill9511《☆》 Transformer Depot🖖😎☮
I have a Heil heating and cooling system, where is the transformer located? My thermostat doesnt have power. I am an engineer and could fix it myself if I know where it is located. Tyhanks
In almost all residential HVAC systems with remote condensers, the low-voltage control transformer will be located in the gas furnace since it must also power the control board for both heating and cooling functions.
can you tell me why my Nordyne heat pump cooling fan running on outside but not put air inside
How do you wire it for a 208-230 heat pump? How often do they break?
Select the primary voltage wire that matches your measured supply voltage. If you have no volt meter, select the 240 wire since that's the normal residential voltage supplied by utility companies. The 208 volt utility systems are usually found only in industrial areas. HVAC units are rated at 208-230 which allows their use on residential as well as industrial applications.
i am unclear on the connections. Just want to make absolutely sure. The common connects to one hot phase? In the case of 120 the black wire goes to neutral? In the case of all the other voltages the com wire goes to a hot phase and the other wire goes to a second second hot phase with no neutral involved?
Charles Borrelli did u get an answer ?
Need to speak up a little louder...can barely hear. But great video
hello mr.fix my own ac.
my question is if you can tell wy the transformer fail? please
many factor but the two most common is a short externally or power surge from a thunder storm that cause the wires being wound to burn out.
i got a goodman unit...i install the fan motor.the capacitor.and the contactor.and still my fan or compressor wont start......my blower inside the house urns on.please help
You'll need to measure the voltage on the contactor operator coil. If you have no voltage there, you may have a bad thermostat or control wire break between the thermostat and the contactor coil. That wire generally runs from the furnace to the outside condenser unit. It could also be an incorrectly wired thermostat. Often the required jumper wire between the rh and rc terminal of the thermostat is left off by mistake.
Best video
You didn’t show me how to wire the low-voltage wires. You just put two words together.
The new transformer says black is common and white is 120 but the old one that went out said black is 120 and white is common. Thats confusing.
Why no just wire it direct to the unit instead of cutting the wires and wire nutting it? That’s messy
But 240 doesn't have common just two hits n a ground 😕
On a multi-voltage primary, the term "common" is used to describe the neutral on a 120 volt system as well as the L1 conductor on the higher voltages.
Thank you
What would the red wire be used for?
The red wire is used on 208 volt power system. It's common in industrial areas where three-phase power is being supplied (120/208 wye connected utility transformer bank). The utility companies prefer that type of system for industrial applications since it's easier to balance the loads across individual supply transformers. That system is rarely used in residential applications.
mousetowndude wrong. If your saying 208 volt is high voltage in England our lowest level of mains voltage 250 volts.
No ground ?
Yeah really shocking experience, u wouldn't be here talking about it lol thanks for the advice
Honor
You mean to say that the white is neutral, not common. Common is the 120v ac but the other colours are other voltages and common does not apply. 240 has no neutral or common. White is neutral or a load neutral but only on 120. Please remove your shitty video as it's very poor quality and very inaccurate and misswiring this will cause damage.
If you need to be shown how to put wire nuts on you probably shouldn't be working on ac's