Could also possibly be power supply issues. Here in outback Australia we often get "Brown out" situations where the incoming power supply drops down from 240V to a low as 150v sometimes even less (Or power surges during electrical storms) Compressors don't like that... especially 3 phase. It's may be unlikely but just food for thought. Knowing how meticulous you are, i honestly doubt you have done anything wrong here! Great video 😊
👏👏👏👏Nice job as always. I had a similar service call on friday, two years old glass door cooler with high low pressure(110 psi) / low head pressure(125 psi) - R404a. The owner didn't want to believe when I told him it was the compressor. Did the same procedure you did just to be sure, recovered the charge, did a deep vacuum and recharge but I got the same result. New compressor coming next week.
Another great teaching video. In regards to HH liquid line driers, I have installed many of them on systems after burnouts. I have never installed them on small cap tube systems, though. Let me know what True says. Keep your head up and keep teaching.😊
True says you cant add anything to the system and procedures were followed as per their recommendations. They do allow RX11 flush but it’s not something I would use especially after passing an acid test. Mind you once it’s out of warranty you can do what you feel will be best for the customer.
I believe True freezer the want to see a 10 degree T.D.whereas true coolers a 20 degree T.D.at least what i was told when i inquired about this...good concise vid
It’s a 10TD coil, but if your desired box temp is -10F as opposed to 0F, it would drip your suction pressure. On coolers it’s easy because we want 34F, on freezers it can be set between -10F and 0F.
We had a few compressor with a trip to was broke off internally in the compressor off of the muffler. So the compressor is locked up shortly after startup. Things happen I wouldn't sweat it. You do good work. Hopefully you get paid for the call back
Two expensive walk in compressors failed on me in one summer right after the install. I drove 5 hrs round trip to pick up the warranty replacements and installed them just the same. This was 4 or 5 yrs ago and both are doing fine. Sometimes the these vapor pumps fail, even if they're new.
did you flush system after first replace compressor? or good way is to mount Suction Line filter drier like a danfoss das08x series or castel or emerson, to catch any acids, contamination or debris
I did not flush it as much as I did in the video. I’ve changed tons of these lol compressors and can’t remember the last time I had to return one under warranty, let alone 6 weeks later. I look into the das08x, appreciate the tip.
Not because parts are new, are working properly. Every time I get sent to a pm and new units are installed, I always find something. Either something in the install work or from manufacture. A Lennox RTU used as DOAS but the roof curb was open to the unit return from supply and a manual damper open in the return. The thing was recirculating air within. Heat exchanger overheated the entire winter. And unit didn’t work properly in summer for cooling as it would bring on heating right after cooling because the temperature in recirculating air. The worst part, I my visit was the second pm our company had made in this new building. I always see opportunity to find issues in new equipment. And that’s why I alway say “ not because is new, works as it should “. I have found units with no crankcase heater when should have.
👍🇺🇸💪❄️ Great honest video thanks I do have a question about condenser split did you have to check with the manufacturer or because it was a newer unit u went with 15 ? If u went with 25 cs the high side would b spot on 195psi.
WHEN possible always cut the line do not unbraze,you could have tried reversing the compressor to dislodge the speck of dirt on the valve,thanks for sharing.
Also have one more question if it has two fans use 15F condenser split and if it’s only has one fan go off of 30F condenser split. Or what dictates the condenser split ?
Most reach in evaporators are a 20TD. The Condensor is either a 15F or 30F split depending on what the engineer set it at. Most of the newer stuff is a 15F Condensor split
how do I calculate the suction pressure, and in some earlier videos you calculated the current temperature of the box and now the desired temperature, which method is better? Thanks in advance
How do I know, for example, on a cooling device that uses a capillary, how many F should I subtract from the desired temperature in order to know how much suction pressure I need in the system? Thanks in advance
@@REFRIGERATIONKITCHENEQTECH HH? its an after burn out filter drier for suction or they have for Liquid... how do you not know this? its on every suppliers shelf mixed in with Normal filters
It’s a critically charged system, we can add components and even the filter dryer has to be sized exactly the same. I could definitely see us doing that on a bigger system. Have you ever installed that type of filter dryer on a smaller critically charged system like this?
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you are a great teacher I wish you could be my mentor I learn more from you than the techs at my own job
Lol, thanks
Man you made it look simple no equipment is made to last long sad its just the truth Great job
I try my best to simplify things so everyone can understand things better and work with confidence and more efficiently.
best HVAC video. please keep making great video, I have learn a lot thank you.
Thanks!
Awesome job compresses are not made like they used to be 👍👍👍
👍 apparently not
Could also possibly be power supply issues. Here in outback Australia we often get "Brown out" situations where the incoming power supply drops down from 240V to a low as 150v sometimes even less (Or power surges during electrical storms)
Compressors don't like that... especially 3 phase. It's may be unlikely but just food for thought. Knowing how meticulous you are, i honestly doubt you have done anything wrong here!
Great video 😊
It’s honestly a great suggestion and something I never thought of.
👏👏👏👏Nice job as always. I had a similar service call on friday, two years old glass door cooler with high low pressure(110 psi) / low head pressure(125 psi) - R404a. The owner didn't want to believe when I told him it was the compressor. Did the same procedure you did just to be sure, recovered the charge, did a deep vacuum and recharge but I got the same result. New compressor coming next week.
Lol, same routine, same result 👍
replace your metering device is wide open.
you can test the compressor to see if it pumps down and it holds.
No valves on this one, the only way to test for a pump down would be to pinch the line
It’s a cap tube, if it was a TXV it could be a reason for sure.
Such awesome teaching and vídeos I’ve been learning how to charge this kind of equipment more acutely thanks to you , thank you God bless
👍👍
Another great video💯. Following a consistent troubleshooting procedure insurers you get to a accurate diagnosis quicker. 👊
👍 practice makes perfect
Another great teaching video. In regards to HH liquid line driers, I have installed many of them on systems after burnouts. I have never installed them on small cap tube systems, though. Let me know what True says. Keep your head up and keep teaching.😊
True says you cant add anything to the system and procedures were followed as per their recommendations. They do allow RX11 flush but it’s not something I would use especially after passing an acid test. Mind you once it’s out of warranty you can do what you feel will be best for the customer.
Thank you sir.
EXELENTE JOB. Thanks for sharing
I believe True freezer the want to see a 10 degree T.D.whereas true coolers a 20 degree T.D.at least what i was told when i inquired about this...good concise vid
It’s a 10TD coil, but if your desired box temp is -10F as opposed to 0F, it would drip your suction pressure. On coolers it’s easy because we want 34F, on freezers it can be set between -10F and 0F.
We had a few compressor with a trip to was broke off internally in the compressor off of the muffler. So the compressor is locked up shortly after startup. Things happen I wouldn't sweat it. You do good work. Hopefully you get paid for the call back
It was covered under warranty but I was paid for it for sure. Thanks for the words of encouragement
Two expensive walk in compressors failed on me in one summer right after the install. I drove 5 hrs round trip to pick up the warranty replacements and installed them just the same. This was 4 or 5 yrs ago and both are doing fine. Sometimes the these vapor pumps fail, even if they're new.
Yes, sometimes there is no explanation and everything was done correctly. I’ve definitely been fortunate and have not had many of these happen to me
I believe its restriction or moisture
did you flush system after first replace compressor? or good way is to mount Suction Line filter drier like a danfoss das08x series or castel or emerson, to catch any acids, contamination or debris
I did not flush it as much as I did in the video. I’ve changed tons of these lol compressors and can’t remember the last time I had to return one under warranty, let alone 6 weeks later. I look into the das08x, appreciate the tip.
@@REFRIGERATIONKITCHENEQTECH "x" is number mean size of filter das083, 085 etc..
👍
Just found your channel, awesome resource. Any chance there’s a link or for your troubleshooting checklist anywhere?
Not because parts are new, are working properly. Every time I get sent to a pm and new units are installed, I always find something. Either something in the install work or from manufacture.
A Lennox RTU used as DOAS but the roof curb was open to the unit return from supply and a manual damper open in the return. The thing was recirculating air within. Heat exchanger overheated the entire winter. And unit didn’t work properly in summer for cooling as it would bring on heating right after cooling because the temperature in recirculating air. The worst part, I my visit was the second pm our company had made in this new building. I always see opportunity to find issues in new equipment. And that’s why I alway say “ not because is new, works as it should “.
I have found units with no crankcase heater when should have.
Yes that is very true. Sometimes it’s setup correctly and other times it’s just a bad part unfortunately
👍🇺🇸💪❄️ Great honest video thanks I do have a question about condenser split did you have to check with the manufacturer or because it was a newer unit u went with 15 ? If u went with 25 cs the high side would b spot on 195psi.
It has had 2 fans, so that usually means 15F split. But even if it was a 30F, we would still have high suction and low head, so same result.
@@REFRIGERATIONKITCHENEQTECH thanks for sharing very helpful
WHEN possible always cut the line do not unbraze,you could have tried reversing the compressor to dislodge the speck of dirt on the valve,thanks for sharing.
On these little systems, it’s hard to cut the lines, there isn’t much piping. How would I reverse a 120V compressor? I wonder if that would of worked.
Also have one more question if it has two fans use 15F condenser split and if it’s only has one fan go off of 30F condenser split. Or what dictates the condenser split ?
Good video. Question for you, how do you determine the condenser/ evaporator split temperature?
Most reach in evaporators are a 20TD. The Condensor is either a 15F or 30F split depending on what the engineer set it at. Most of the newer stuff is a 15F Condensor split
@@REFRIGERATIONKITCHENEQTECH is it stamped somewhere on the unit ?
Unfortunately not
HOW DO YOU GET YOUR CONDESNER SPLIT
Unfortunately parts & equipment getting worse these days put in a Sporlan 032 Cap tube drier .
👍 thanks for the tip, I will look into that
It would be interesting to cut open the failed compressor and see what the actual failure was
Had to return only under warranty, although they may have taken it back regardless.
Has anyone had issues with the drain tube on the true reach in’s freezing and backing up with a good heater?
What was your fix?
how do I calculate the suction pressure, and in some earlier videos you calculated the current temperature of the box and now the desired temperature, which method is better?
Thanks in advance
Current box temp = TXV, desired box temp = cap tube
Yes, thank you, and is 20F TD always subtracted from any cooling device?
Nope, walk ins will have a different TD.
How do I know, for example, on a cooling device that uses a capillary, how many F should I subtract from the desired temperature in order to know how much suction pressure I need in the system?
Thanks in advance
What caused it to go bad so soon????
I did not find this answer unfortunately
Boss I want to know that if I want restaurant reach in normal temperature freezer convert to deep freezer how can did it.please tell me.
Equipment these days are getting worse. Unfortunately 🙄
desired box temp-TD(20)... is it always a 20* TD?
For cap tube yes
@@REFRIGERATIONKITCHENEQTECH How do you know what the condenser split should be in other vids of yours I see 30 alot but in this its 15
Most newer stuff will be 15F. Based on your suction pressure, you will know what it should be
No word
did he just check for a Burn out even tho the compressor is not pumping .... wow SMH.....
Compressor was pumping, which is why it was cooling to 25Fz The first one was a burn out.
@@REFRIGERATIONKITCHENEQTECH if the first was a Burn out why didn't you install HH filters wow this one is on you .... not cool man
What’s an HH filter? The filter dryer was definitely replaced, I always change it when opening up a system.
@@REFRIGERATIONKITCHENEQTECH HH? its an after burn out filter drier for suction or they have for Liquid... how do you not know this? its on every suppliers shelf mixed in with Normal filters
It’s a critically charged system, we can add components and even the filter dryer has to be sized exactly the same. I could definitely see us doing that on a bigger system. Have you ever installed that type of filter dryer on a smaller critically charged system like this?