excellent video Charles. I'm 7 years too late, but it still is a great teaching tool. Thank you for sharing your knowledge. This is so very well displayed. Thank you!

This helped me out on a long hard day where i found myself confused and frustrated on a job. Came home to do some learning and this really did the trick.

Very pragmatic with practical eye on what is going on. Though I am a novice I will give you 10 out of 10. May God bless you for your good intentions.Nice guy.

This is the best and clearest full explanation that I have seen. Thank you!!

Gotta love KZfaq College, one of the best ways to learn new things, or even just better understand things you already have a basic grasp on (which is my case). Appreciate the video Charles!

love your video , I'm a hvac/r tech and sometimes I still get confuse with some stuff and this video clear some of those doubts , thanks.

Thanks. You use your valuable time to explain what I found complicated to understand. Now its clear. i admire your work.

This is great, I have watched this so many times. great education when you dont do this everyday. Thank you 7 years later lol

Another excellent demonstration. Thanks for sharing.

great explanation. there are so many factors involved on a commercial walk in freezer.

Man for me this is the best explanation video on this subject. Thanks for sharing and putting in the time to make that mock setup for all of us to see and learn from.

Really good video very instructive thank you so much and may our God bless you

great job !!!!!!!!!!!!!!! that is what i want to built !!!!!!!! thank you for your time and information keep those videos coming

Thank you for taking the time

Damn man you know how to explain very well!

Great video....can you make more video about the refrigeration system...

Awesome I don’t have words to say god bless you man

Beautiful. How come you stopped doing this kind videos !!!!

great video thank you

one of the best explanation thanks

Great video !!! Thanks so much

The handheld diagram is incorrect. You drew the symbol of normally open contacts between terminals 2 and 4 but labeled it NC (normally closed).

I’m 3 min into the video so far very informative. Just wanted to tell you the symbol for your limit switch is backwards. Should be above the decimal. They way you have it drawn indicates the switch opens on temperature fall and closes on temperature rises you want it to open on temperature rise and close on temperature fall. Just some constructive criticism. Keep up the great work!

Very good tutorial brother god bless you looking forward to see more videos

VERY GOOD VIDEO !!!!!!!!!!! THANKS FOR THIS !!!!!!!!!!!!!!!!!

i work for a company that mainly does commercial heating and cooling towers your videos explained refrigeration perfectly for me i feel like ive been working for years haha thank you and ill will 100% like and subscribe

Very good video. Thank you.

Thank you for sharing.

Thanks for the video. Good circuit logic setup/explanation. Only thing you did not mention the functionality of is the thermostat on the left hand side of the setup. I assume that is just a refrigerator thermostat controlling when to kick on the compressor to cool the frig. to the proper temperature.

Well done - thanks.

nice video thank you.

Is this for 115v or for 230v wiring? Thank you for the explanation.

Thank for information I’ve not been sure about the defrost terminate -is the other side of the terminate switch coming from #3 on the clock ?

beautiful man....its beautiful.....

Great Video, I will appreciate if you can give details like which wire goes where from timer,.

Top of the line for the extra effort, what could Prevent the voltage from not switching? Time clock ok..

I am running into units with thermisters and electronic timers. I am not for certain if that kind of mechanical timer would work on the higher tech systems.

Thanks for sharing ,,

How do yu set thermostat and timer to work together, If I want my freezer to defrost 4 times per day yet the temperature will rise to cut the compreser through thermostat even more than 4 tyms?

Respect!

Thanks sir 👍

Replaced timer 8145-20. Instructions say should be power to 3 or 4 but not both! I have power to both. What to check

great video can you add the wiring for the condesin unit. thankyou!

Charles. Great video!!!! I have a question. How is the compressor able to accomplish pump down of the system,when I switch from 2-4 refrigeration contact to defrost 1-3 (now closed)? I can't see it how it's done,since evaporator,thermostat and solenoid are all in series on the same circuit,namely 2-4. By switching from 2-4 contact to 1-3 contact now energized, I de-energize the solenoid,now closing and pump down can't be accomplished by the compressor. Please help me understand this problem. Thank you

Thanks for the videos, if a pressure switch is added would it be wired independently of the other controls in the circuit .

Very very good video

why some defrost clock are feed the power with leg 1 and N? please

Very Nice but I am kind of confused because the terminals are different on this time clock from the time clock that you showed on your two previous videos. On the previous videos you showed L2 connected to N. I reason that this may be a different time clock and it needs to be connected differently. That being so, can the time clock that you showed on your previous video be used in place of the one that you show in this video?Anyways for me you have certainly taken the mystery out of time clocks. The only thing that I would elaborate on would be that when the solenoid closes it causes a pump down and stops the compressor during the defrost.

I teach at an HVACR program at this would be a great mock up, did you generate a material and source list ? I looked at somem of the Hamden trainers and there wayyyyyyy to expensive, Id b super grateful if you could help us out , Id gladly send you pics and updates as my kids build your trainers ! Thanks !

Very nice......

Amazing

excellent

thanks for the video, does the terminal 4 in the defrost cycle switch connected to the compressor back to terminal Xl , or compressor should be connected in series with valve and thermostat?, please clear this, thanks in advance

Very good👍

Hey that dftd switch is it a momentary switch or regular and will stay on unless u turn it off if so what is the part number?

i have kitchenaid model is YKBRS21KAW00 my problem is .if the temp control is off!! the defrost timer is making noise and advance, evap fan is running but slow and compressor wont start.but freezer will be cold but if the temp control is on!!! the compressor start ok freezer stay cold,but defrost timer is not making that noise and does not move a bit, evap fan won't start at all and inside the fridge part its hot no air coming from the vent in fridge. . the light in fridge and freezer stop working and there is a small switch for uses less energy if flip one side and flip on other side is for reduces exterior moisture the light does not come on either on the switch. not to sure what this switch do but din't seem to make a difference in the pass but i know that light was coming on if it was flip on before . any suggestion of what can be wrong ? I change the defrost timer and i change the evap fan and the temp controler too at the same time !.something is running backward but not sure what could do it ... Show less

Very nice

Can you upload a video where you wire the pressure switch to the contractor and the compressor please .

Whats a problem if the Timing motor...turn on to clockwise?

I helped our warehouse tech to install a timer on a freezer, we followed every step and traced all of the wiring! it's not kicking into the defrost mode or turning the compressor and fans off! IDK if the wiring is bad or bad timers!

Great stuff. In the near future can you do the same for digital clocks. Example groslin dtav40

Why is there a valve in the liquid line ? Why not just turn the compressor off ?

When I go to Sam’s Club, I noticed that sometimes the evaporator fans in the coolers holding the frozen foods are off. I assume that when the fans are off, the evaporators must be in defrost mode as you have described in this video. However, when I look at the evaporators in the refrigerated (non-frozen) foods cooler, those fans are always on (never off). What defrost system do you think the evaporators in the refrigerated foods cooler have which does not require the fans to go off? Or is that the fans do go off in defrost mode, because of the warmer temperature that the refrigerated foods cooler is in, the defrost cycle does not happen as often?

It doesn’t get better than this

Good video but you labeled the time clock diagram very confusing

please clarify defrost timer series. Looks like a 8141-00

Nice

Goog sar

great's

👍

Normally closed solenoid for Liquid line!

Manda el diagrama en una imagen

Limit switch close on temperature rise!

I Ilike your vídeos but i would Ilike to explain them as well in spanish greetings teacher

Nobody shows voltage checks and that’s what people want to see

Thought N was neutral

Get your meter out and show what the voltage will say.

wow so much saying not much explaining

switch you're n and x terminal marking also n terminal has no swtch

appliance.academy

horrible exponations