Some of the very BEST (also no cost) education I’ve gotten was just reading installation manuals for equipment. I kick myself often because for the first 5 or so years, I didn’t read any of them and now…. EVERY CHANCE I GET! Seriously, it’s been some of the most enlightening stuff and has saved me hours of headache.
Thanks so much for taking the time making the video to share your knowledge. Huge help to us new guys in the HVACR field, much appreciation. keep up the great work.
Nice thorough video Chris, wiring can be tough, always helps to see it, I like how you threw in the schematic helps the young guys as always appreciate all your help.
Thanks man great video! I'm working on a 404a freezer Tomorrow morning and the schematic is toast. The condensing unit is running and the solenoid is energized and thermostat is working ok but the fans aren't coming on. I'm thinking its probably the defrost termination switch but this video was a lifesaver with no schematic. Thanks buddy!
Great tutorial , Chris 👍 I wish I meet veteran techs as yourself and I would have done your head in with tons of questions ! Instead , I came across patronising know-it-all cut-thoat people who almost made me give up the trade ! Nice to see there's still old school good guys like yourself out there , much appreciated bruv . How's the back ache btw ?
Question? I'm working on a unit and when it terminates defrost either by time or temp the solenoid valve opens and the fans immediately energize after the soleniod valve. All Brand new equipment.. I'm thinking it was originally wired wrong but confused on were they wired it wrong?
obedb093 the condensing unit does always , sometimes power will go to the evap from condensing unit. Other times the Evaps will have their own power supply. Just depends on how it’s wired
If you see 120 volts on the x terminal all the time is this normal? It’s running a gravity system coil no fans or heaters I don’t understand how they have this clock wired
hello sir question if i put the unit in defrost on the timer it goes to red and then switches right away to refrigeration it goes to green could that be caused by the dtfd or because the unit is still warm 40 degrees and the fans come on right away any help would be great thank you for your time
I'm working on a turbo air walk-in freezer. At start up, the fans would not run because the fan delay was not cold enough. What will cause that fan delay to get cold enough to kick the fans on if the room is at 65 degrees Fahrenheit. Does the compressor just keep kicking in and out on low pressure till the room gets cold enough?
the fan delay should have a sensor on the coil or in the coil sensing the temp. once it gets cold enough the fans will kick on but the compressor should not be going on and off on low pressure while the fans aren’t running .
Hey buddy I’ve been running residential and commercial hvac for 10 years. I’m installing my first walk in freezer and a video on setting up cut in and cut out pressure would be awesome. Also this freezer didn’t come charged so a video on charging a freezer from scratch would be awesome thanks
Hi, for some time clocks I have seen defrost heater resistor receiving power directly from the time clock. In other cases, there is a separate contactor for defrost heater, and the time clock is connected to the coil of the defrost contactor. What determines this difference in wiring? Thanks.
It can depend how the system is set up but more for the amperage of the heaters because sometime they need their own circuit because of what they draw for amps .
Any thoughts about sequence of operation. Wiring a new WI freezer (everything is 2 speed evap fans now days with extra relay to control speeds) and seems like heat craft gives no provision for compressor to shut off on pump down before defrost heaters come on. Max breaker/ fuse size on nameplate does not seem to reflect compressor/ condenser motors running amps AND heater AMPS to be drawing at same time. Defrost kicks heaters on same time as solenoid closes and compressor starts pumping down Do we change factory control set up/ add more controls or just oversize what nameplate says for fuse sizes?? Small 1.5 HP WI freezer box this is. Dawned on me with getting proper fuse sizes. I would hate to single phase a new 3 phase compressor because a fuse blew prematurely! What do guys think/ do?
Hey bud , thanks for doing these type of videos, I really appreciate it. I have a Traulsen freezer G22010 and it keeps on freezing up. Im stuck on why my heater coil is not working. today I tried once more but were can I get the diagram so I can narrow it down to were the problem is. it is an old freezer I know. but i love fixing stuff and now is about feeling proud of getting it fixed. My parents have owned it since 1998 I believe, running our first bakery. 4 years ago I took over one of my parents locations, we are Dorcas Bakery, and although my Dad wants me to get rid of this well built freezers, I have been tackling down issues as they come due to the age of the unit. there is no other better unit for me, but years of service on this unit are taking a toll on it. First , the clock needed to be replaced," EASE ONE" done! Then, I fixed a short, some wires got to old and I fixed it 3 years ago. 3 months ago, I noticed it kept freezing up and the heater coils would not turn on. initially the wiring as faulty and old, I swapped it, now it has a good connection (checked with multimeter)...bottom line Im stuck , what is my next route?
@@Cscrefandhvac yeah. Its was just I had finished fixing the unit but with the box temp was up and the correct time landed on a defrost. This was a graslin timer without a defrost termination in the evap. Didn't want to short anything so I told them the unit would turn back on after 30 minutes.
Thanks for the videos, Great Explanation, Since you are an Old Champ in this field, What should be normal operating pressures for refrigeration units as far as Walk in Cooler or freezer and the same for reach Ins, what kind of sub cool and super heat should we expect from these units in order to trouble shoot these units properly ?
As a fridge electrician I am ashamed of just how stupid and lazy to learn most of my competitors are. For that I would like to thank them. I'm called on several jobs to sort out attempted control wiring. On my way today to charge a premium rate to get another one running. This one is special as the customer tells me he is an "engineer". Wonder where he parks his train? TOG out!!
@@Cscrefandhvac na just slow down a little for us not so familiar w refrigeration guys I even doing hvac and want to get into refrigeration u def seem to show detail to everything but I gotta do a lot of pause and rewind cuz u go flash Gordon on parts lol
@@Cscrefandhvac I live about hour and change north of Manhattan and its a bitch to have to travel to a refrigeration class down there tuna tryna go thru hell lol so tryna self educate myself until I can find affordable and close school or a comp that might hire just to do refrigeration so I can learn to be grear at it I DOD HVAC installs and got into service but the ppl always ask like biz owners if I can do walk ins and all that type refrigeration and I see it's a big demand for it
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Some of the very BEST (also no cost) education I’ve gotten was just reading installation manuals for equipment. I kick myself often because for the first 5 or so years, I didn’t read any of them and now…. EVERY CHANCE I GET! Seriously, it’s been some of the most enlightening stuff and has saved me hours of headache.
Rule 1 of HVAC. Always refer to manufacturer specs and manual.
I wish someone explained it to me like this when I first started out Nicely done.............
9
Thanks for the video I hate coming around a stubborn old tech who don’t want to explain anything, god bless you and UA-cam for this
Thanks man appreciate it
Thanks so much for taking the time making the video to share your knowledge. Huge help to us new guys in the HVACR field, much appreciation. keep up the great work.
Ron Tolley thanks man
Where were you when I was 24. Course that was in 1974 but dang what we learn over the yrs. thanks for explaining the magic. Ya make it easy. 👍🏼😊
John Golding hey I appreciate That man hahah I wish I had UA-cam when I was 24 hahahah
very direct and laid back delivered lesson... it should help anybody in this field
Roy Prenell thanks man.
Nice thorough video Chris, wiring can be tough, always helps to see it, I like how you threw in the schematic helps the young guys as always appreciate all your help.
You did a good job explaining the topic. I understood what you were teaching. Keep up the good work.
Thanks boss, this playlist you made is amazing. 10/10. you won a spot in heaven for sure 😂
thanks man , I appreciate that .
Awesome can’t wait to see what you got coming down the road.
As always, great video. I always learn something even when I've done it 100 times😊
Best video on the Internet on this subject
M tech thank you 👍
Thanks a lot boss! Always looking forward to watching your videos! You’re the man😎🤙👍
Thank you! Pretty easy to follow explanation.
Thanks man! I just learned everything i wanted to know about my freezer wiring!
Thank you so much you made my job easy for me I appreciate you for doing these types of videos..
Thanks Chris for share your experience with us.
Great video I am new to light commercial refrigeration so these walk in freezers where a little tricky for so thank you for the video
Hey Chris, Sorry to hear about your injury, get better and git after it again.
Great breakdown and explanation
I appreciate your explanation it’s great
I’m on Cape Cod and I’m starting to do a lot more freezers and this will help....👍🏿👍🏿 lets go ☘️☘️
Cool Runnings Refrigeration thanks man I appreciate that ! Have fun down there. I haven’t worked on the Cape in years ! Haha
All electronic here in Europe. And belive me, more than once I wished to put mechanical on more than one system. I love that simplicity.
Juan Todolí yes I prefer the mechanical clocks as well
Same here Juan , hey btw u in Spain ? Eres español señor ?
Thanks man great video! I'm working on a 404a freezer Tomorrow morning and the schematic is toast. The condensing unit is running and the solenoid is energized and thermostat is working ok but the fans aren't coming on. I'm thinking its probably the defrost termination switch but this video was a lifesaver with no schematic. Thanks buddy!
Mr anonymous glad it could help man. All these schematics can be found in the heatcraft website also . Good luck with the call man
You saved me from creating one for sum techs
Thnx
Thank you for your time and teaching
Man u really help me understand this. Thanks so much broo
Yes. good explanation. could have used this 25 years ago.
Great tutorial , Chris 👍
I wish I meet veteran techs as yourself and I would have done your head in with tons of questions !
Instead , I came across patronising know-it-all cut-thoat people who almost made me give up the trade !
Nice to see there's still old school good guys like yourself out there , much appreciated bruv .
How's the back ache btw ?
Sterling Archer thanks man appreciate that 👍. The back is doing good.
Thanks for your time 😊
Love it! Thanks for the tips
really good explanation thats what I need, thanks for your video...
Awesome video
Great video, I'm learned something today ^_^
Thank you for your helpful video
thank you master , learn a lot ! keep up /
marlboro :)
The defrost timer should be located before thermostat or after thermostat?
In series
Thank you very much. I appreciate it. More videos? When?
Question? I'm working on a unit and when it terminates defrost either by time or temp the solenoid valve opens and the fans immediately energize after the soleniod valve. All Brand new equipment.. I'm thinking it was originally wired wrong but confused on were they wired it wrong?
Thank you for your help
so the compressor has its own power supply from the panel?
obedb093 the condensing unit does always , sometimes power will go to the evap from condensing unit. Other times the Evaps will have their own power supply. Just depends on how it’s wired
If you see 120 volts on the x terminal all the time is this normal? It’s running a gravity system coil no fans or heaters I don’t understand how they have this clock wired
hello sir question if i put the unit in defrost on the timer it goes to red and then switches right away to refrigeration it goes to green could that be caused by the dtfd or because the unit is still warm 40 degrees and the fans come on right away
any help would be great thank you for your time
cooling&refrigeration guy yes , that could be a cause for sure man
@@Cscrefandhvac thank you for ur reply
cooling&refrigeration guy could also be the 2 wire heater limit switch that could be in the evap also
I'm working on a turbo air walk-in freezer. At start up, the fans would not run because the fan delay was not cold enough. What will cause that fan delay to get cold enough to kick the fans on if the room is at 65 degrees Fahrenheit. Does the compressor just keep kicking in and out on low pressure till the room gets cold enough?
the fan delay should have a sensor on the coil or in the coil sensing the temp. once it gets cold enough the fans will kick on but the compressor should not be going on and off on low pressure while the fans aren’t running .
Hey buddy I’ve been running residential and commercial hvac for 10 years. I’m installing my first walk in freezer and a video on setting up cut in and cut out pressure would be awesome. Also this freezer didn’t come charged so a video on charging a freezer from scratch would be awesome thanks
How did this job turn out haha
Job went fine considering I’ve never worked on walk ins before so was a great learning process and everything is still working great
How have you been in the trade 10 years and you can’t adjust cut in cut out? Why are you taking jobs on things you know nothing about. What a scab.
Hi, for some time clocks I have seen defrost heater resistor receiving power directly from the time clock. In other cases, there is a separate contactor for defrost heater, and the time clock is connected to the coil of the defrost contactor. What determines this difference in wiring? Thanks.
It can depend how the system is set up but more for the amperage of the heaters because sometime they need their own circuit because of what they draw for amps .
Any thoughts about sequence of operation. Wiring a new WI freezer (everything is 2 speed evap fans now days with extra relay to control speeds) and seems like heat craft gives no provision for compressor to shut off on pump down before defrost heaters come on. Max breaker/ fuse size on nameplate does not seem to reflect compressor/ condenser motors running amps AND heater AMPS to be drawing at same time. Defrost kicks heaters on same time as solenoid closes and compressor starts pumping down
Do we change factory control set up/ add more controls or just oversize what nameplate says for fuse sizes??
Small 1.5 HP WI freezer box this is.
Dawned on me with getting proper fuse sizes. I would hate to single phase a new 3 phase compressor because a fuse blew prematurely!
What do guys think/ do?
No more spaces and impractical to run new 2 pole circuit just to evaporator coil on this freezer!
What do you guys do?
Any links to the books?
what about the condensing unit?
What terminals do you use if your walk in has a solenoid wiring harness? Is it N and 4?
The wiring harness is in the evaporator.
Good job thank you
Nice Chris!
Thanks brotha
Thanks a bunch!
Thanks for the information
Where did you get your HeatCraft book?
@@skylee5029 they come in the box of a new Heatcraft / Bohn evaporator
@@Cscrefandhvac Thx. I'll snag one for myself next time the opportunity presents itself.
Where would you wire your condensate drain line heater in this application?
Those are usually on their own separate circuit / outlet on the wall that they just plug into
I appreciate this video, Thank you 👍👍
Carlos thanks man hope it can help
Thanks alot am young and am going through the same thing
Glad you didn’t use a Grasslin electronic clock, I hate them. The Paragon mechanical clocks are the best IMO. Thanks.
What kinda book do you have?
good stuff bud.
Hey Chris haven’t heard from you for a bit hope your back is better, take care man, hope to see a video soon
Chris Cooley hey thanks man . I’ll be back to work tomorrow. Got cleared by the doctor last week
Great info!
Chris were you been buddy? Hope your well.
I'm still here haha
Were can I get that book?
The book comes in the box with new Evaps coils
Thank you👌
got a link for a copy of that heat craft book?
found this, www.heatcraftrpd.com/literature/literature.aspx?&fid=956
R C should be available on their website somewhere. They also come with all new units. Supply houses may have some too they could give you
Hey bud , thanks for doing these type of videos, I really appreciate it. I have a Traulsen freezer G22010 and it keeps on freezing up. Im stuck on why my heater coil is not working. today I tried once more but were can I get the diagram so I can narrow it down to were the problem is. it is an old freezer I know. but i love fixing stuff and now is about feeling proud of getting it fixed. My parents have owned it since 1998 I believe, running our first bakery. 4 years ago I took over one of my parents locations, we are Dorcas Bakery, and although my Dad wants me to get rid of this well built freezers, I have been tackling down issues as they come due to the age of the unit. there is no other better unit for me, but years of service on this unit are taking a toll on it. First , the clock needed to be replaced," EASE ONE" done! Then, I fixed a short, some wires got to old and I fixed it 3 years ago. 3 months ago, I noticed it kept freezing up and the heater coils would not turn on. initially the wiring as faulty and old, I swapped it, now it has a good connection (checked with multimeter)...bottom line Im stuck , what is my next route?
Maybe try going to the Traulsen website . They should have a bunch of manuals and diagrams for each model
Ohm out the defrost heater and look for burnt contacts on the timer.
Can you jump N and X to exit defrost VS twisting the timer to exit defrost?
Moe Ashraf I suppose you could I’ve just always turned the clock though haha
@@Cscrefandhvac yeah. Its was just I had finished fixing the unit but with the box temp was up and the correct time landed on a defrost. This was a graslin timer without a defrost termination in the evap. Didn't want to short anything so I told them the unit would turn back on after 30 minutes.
Moe Ashraf ok I see hahaha. You could’ve just turned the dial on the clock though unless you didn’t want the time to get messed up
Where does the neutral land cuz 208v iz 2 hots
This is an old reach in cooler it does have a solenoid on it too
Thanks for the videos, Great Explanation, Since you are an Old Champ in this field, What should be normal operating pressures for refrigeration units as far as Walk in Cooler or freezer and the same for reach Ins, what kind of sub cool and super heat should we expect from these units in order to trouble shoot these units properly ?
Allah Mir well it can all be different depending on the type of Freon and if it’s low temp or medium temp etc
@@Cscrefandhvac Is there any reference to this subject or chart i can study .
Allah Mir you should be able to find a lot of things or manuals in this subject online at manufacturers websites etc
It goes in defrost like normal but I don’t know why I see 120 volts on x no matter what the clock is in
Thx
I just replace a new 3 phase condensing freezer but is a little different and I am alitle lost brother
You always make really informative videos. Just a quick question: do you ever do “simpler” residential or are you dedicated commercial?
Mark Naravas I do all commercial work. Every once in awhile I may get a residential call if other techs are backed up
👍👍👍👍
You ok, have not heard from you in almost a month
Jose Julián I’m good man just got back to work. I was out for 6 weeks with a back injury
@@Cscrefandhvac stay strong brother, glad you ok. Best wishes to you and yours...
Jose Julián thanks man you too . Hoping to have some new vids soon
I can smell that cigarette
Smells good lol
You also holding a defrost heater on your fingers😂
As a fridge electrician I am ashamed of just how stupid and lazy to learn most of my competitors are. For that I would like to thank them. I'm called on several jobs to sort out attempted control wiring. On my way today to charge a premium rate to get another one running. This one is special as the customer tells me he is an "engineer". Wonder where he parks his train? TOG out!!
U talk to quick man lol need to watch this over few times n let it marinate. Slow down a little
Wild Man Hahahha sorry about that man. Just the way I talk I guess Hahahha
@@Cscrefandhvac na just slow down a little for us not so familiar w refrigeration guys I even doing hvac and want to get into refrigeration u def seem to show detail to everything but I gotta do a lot of pause and rewind cuz u go flash Gordon on parts lol
Wild Man I’ll for ya bro haha👍
@@Cscrefandhvac I live about hour and change north of Manhattan and its a bitch to have to travel to a refrigeration class down there tuna tryna go thru hell lol so tryna self educate myself until I can find affordable and close school or a comp that might hire just to do refrigeration so I can learn to be grear at it I DOD HVAC installs and got into service but the ppl always ask like biz owners if I can do walk ins and all that type refrigeration and I see it's a big demand for it
hire a tweaker to hold your camera.... their hands are steadier