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Transformador 24-4 24+24vac 127-220vac 1,5a Hayonik [f003]
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Transformador 24/4 24+24vac 127/220vac 1,5a Hayonik [f003]Potência:72VAEntradas:127/220 VACSaída:24+24 VAC 1,5ADimensões:A= 100mm, B= 88mm, C= 75mm, D= 75mm, E= 120mmPeso:1,899 Kg NA
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April 19 2025
Does the 24 volt coming from the transformer go to the board first or the thermostat
April 19 2025
If I was going to add an inline fuse to the 24 volt transformer side what gauge wire and amp would you recommend
April 19 2025
I added a 3a fuse to my power supply (40VA) and attached two spade terminals to the hot wire of the 24v side. Works great now I feel that I protected my board better. Older system, 1999 no fuses!! THANKS Great vids by the way.
April 19 2025
What is the work of 100 VA. AVR?
0-98-134-183-230-249-339-462,
7 terminal?
April 19 2025
Hello, I have a same part# transformer in my package unit. on the primary side of transformer, is it only 2 wires are used at once? the old transformer that was installed had blk(120) and red(208) connected on 2 poles on the contactor and the wht (com) was cut off, not used. by doing this do you get 240v? the green (com) was grounded to the frame
April 19 2025
Would you call it primary and secondary winding. Just like the winding in a compressor Start winding (larger) then the Run winding (smaller).
April 19 2025
if on the 24 volt side i only have a yellow and a blue,which is common and which is hot? blue is the common,right?
April 19 2025
Can I use a VfB class 2 transformer to run car audio amp and subs in my house? Rather then the computer power supply?
April 19 2025
Can you explain how the common on the primary is different from the common of the secondary side. For example on a 480v transformer, they label use black-common and Gray for 480.
April 19 2025
I have a bad transformer on a air handler and it only has 2 wires hooked up to the hot side of the low voltage and nothing on the common side. I bought a new transformer that has wires on the low voltage side. what does the common wire go to ?
April 19 2025
my thermo stopped working, turned out to be the 5 amp fuse so check your fuse first. $1.29 fix
April 19 2025
Your secondary 24v red and green wires, does it matter which one is common? The transformer just says 24v green-red.
April 19 2025
How about you show a cold air transformer? For the rheem 10 seer air conditioner
April 19 2025
Can you do a video SHOWING how to wire a transformer exactly. Like breaking a leg off high voltage etc? Your videos help me in my hvac career & I had a hard time wiring a aprilaire ventilator yesterday when it came to wiring the damper motor to the transformer. Thanks brotha
April 19 2025
Question. If I found a 40va could I replace it with a 75va? Would it be a problem?
April 19 2025
I have two electric baseboard heaters producing 16 Amps currently connected to a double pole 22A-120/240 Vac(18A-277VAC res. only) thermostat. Can I use this same contactor to connect on a 24V wifi thermostat?
April 19 2025
The green wire that you mentioned being the common on the 24 volt side, Can I hook my Blue wire to the c terminal on my wi-fi thermostat? Thanks.
April 19 2025
omg, smartest presenter.... are you around right now?? lol.... Cz I need u! before I burn down the house or eletrocute myself, lol.... Tuesday, February 12 2019, 12 noon MDST(Alberta)
April 19 2025
On the 24v side the wires are yellow and blue. On the one i have but the one i will replace the colors are like the on you showed
April 19 2025
I need help.. I have a issue with needing to rewire the train air handler I have.. their is three main wires I have to connect to.. they’re thick gauge main power wires colored red black and green.. I need to know which I have to connect which to to get the blower back to working again.. I have a picture if I need to send it.. I believe it’s 240 .. the transformer is a pf52475 3.2 amp .. the blower is a Trane twv030b14f...
Currently the green wire from two wire side is connected to the Grey wire from the unit and the red wire connected to a black and red wire from the unit.. I have red black blue and orange on the other side of the transformer I need to figure out where to connect to.. there is also a small red wire coming from the unit not connected to anything..
Which of the thick black red and green wires do I need to connect to the transformer and which transformer wires do I need to connect to the unit?
From the unit I have two small white wires and a red wire same size not connected to anything..and the larger gauge red black and green..
April 19 2025
I have a question about the 240v hookup Transformer.. you said the rightway to hook up to hook up orange wire one pole that 120v of the 240v and the white wire ..do you hookup the white to the com or the other 120v line please let me know.. thank you.. if you answer that for me.
April 19 2025
Mr Craig I have a question,3 months ago I changed a burnt control board since then I can hear what I think is the transformer humming, could this be a signal of any problem, thank you and your videos are number one on hvac teaching keep the good work
April 19 2025
Hi where does the Neutral wire go? i disconnected a broken transformer with out looking at what i was doing, it seemed pretty straight forward. Now i cant figure out where to connect the white wire. the power entering is 2 phases entering the unit but no Nuetral. What do you think i could do? Thank you in advance for your help.
April 19 2025
What causes the transformer to go bad. If you I put a new transformer it might burn. Thanks
April 19 2025
STOP SAYING ALRIGHT after you make a statement. Otherwise, good video. Thanks.
April 19 2025
Very informative thank you for the information so very much you rock
April 19 2025
Wow it’s amazing how much I learn in such a short vid. I’m about to replace a broken transformer in my air handler. This give me the knowledge and confidence. Thanks!
April 19 2025
Can you use a 120v/24v 50va transformer to replace a 120v/24v 40va transformer?
April 19 2025
Nice video.
For educacional purposes help me understand this. I have a 120/24v transformer. On the secondary side From terminal labeled 24vac to ground I read 17volts ans From terminal labeled 10VA to ground I read 16Volts. I read 24v across these 24v and 10VA terminals.
How do I determine which one of these two wires is the 24V hot? I was expecting to see 0v from one of these legs to ground.
April 19 2025
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?
April 19 2025
I live in Savannah GA and my transformer died… I know!!! There are a few places I could get a new but it was after hours and they were all closed. So on a whim, I checked continuity on the primary winding between C and 230 and got nothing, however there WAS continuity between C and 208. You see where I’m going with this? I put the transformer back in the air handler, reconnected the low side and connect the high side to the C - 208 tabs. Turned on the juice, no smoke, all is good. As of the time that I am typing this, it’s been running for about 3 hours (it got up to 79 inside). Everything opens up around 7am, hopefully we make it!
April 19 2025
If 1.6 is all the transformer can handle on the low voltage side then why are there five amp fuses?
April 19 2025
If I am using the white and black for 120v can I use the red as another 120v motor? If it has a neutral already?
April 19 2025
How do you determine what size transformer to use and what size fuse to use? I am trying to add some relays to my system and I cannot find out what their coil power draw is and determine if the transformer will work.
April 19 2025
So if I have 2 120 volt wires no neutral no ground for a 240 volt wall heater in how do I wire transformer to come down to 120 for new 120 wall heaters. I really appreciate your help..
April 19 2025
I’m late but would this work on a irrigation 2 wire system and if so what wires would I use and what wire could I put a fuse on the 115v side to prevent overload
April 19 2025
Thank you for the video. My 35VA transformer on the furnace went bad. Can I replace it with a 40VA transformer?
April 19 2025
Thanks for this video. It was very informative. Can I run two 24v UV lights off one of these transformers?
April 19 2025
Hi came across your video, can i use this transformer to step down a 120 volt thermostat on my boiler. Im looking to put in a nest thermostat, and was wondering if this could work for me, so i can get rid of the old 120v and put in a 24 volt wifi enabled nest thermostat. Would you happen to have a wiring diagram for this to be done, on a heat only system with an aquastat relay.
April 19 2025
This was very helpful for me to troubleshoot and confirm that I had wired a new, but faulty transformer correctly. Thank you very much for the simplification and straightforward tutorial!
April 19 2025
I have a 120/208v line voltage system with red, black, and ground wires connected (with two red wires behind my current thermostat wire nutted together for whatever reason). Will this work to power a Nest Thermostat properly? Do i still need a C wire aka their Nest Connector?
April 19 2025
Hello Craig. Can you comment about some transformers that ground one leg of the secondary to the cabinet ? Often when you look at voltage of each secondary leg to cabinet, you get R at 16 volts and C at 8 volts.
April 19 2025
Swamp cooler with 3 power for motor. Contractor, switch, and transformer wired in. Switch will not shut off. (Dual phase 240). 2 sides provide 120 each. Switch shuts off line 1. No common available. Is the transformer of a correct type?
April 19 2025
How should I wire it for 220v AC input and 24v output? Same as for 240v?
April 19 2025
I installed an Ameristar furnace, keeps blowing the fuse and the transformer. What do you think it could be the case for it?
April 19 2025
I have a 200 V system and my transformer just went but whomever had wired it before had orange and black connected. Do you know the reason for this?
April 19 2025
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