I just found your channel and I love it. I work for Hussmann on the manufacturing side of things and it’s really cool to see these things (even if it’s not one of ours) out in the field working. Keep up the great content!
You worked at Bitzer in Oakwood? Small world! I work at Hussmann in Suwanee and used to live less than 2 miles from the Bitzer plant. We use a ton of Bitzer stuff!
@@Eevee_133 I worked there back when they use to build racks and for a little while when they started assembling the compressors. I use to take the green bitzer compressors and paint them blue and change the label. Then they were Ingersoll Rand. We had a section at the Hussmann facility over by the loading docks where IR compressors were stored. I had to go there occasionally to pull orders. I've had to deliver to Hill Phoenix in Conyers too. Both facilities are huge. I haven't been at Bitzer since '06. I wanted to learn more so I chose a job that would give me more experience in the field before starting my own outfit. I haven't done any supermarket refrigeration since Bitzer stopped manufacturing racks ('05), but I am well experienced in residential and commercial HVAC and low and medium temp refrigeration.
So that I understand... This compressor was off for some time, the oil float was open, thus the oil from that compressor drained out. You came, brought it back to life, and it started hogging all the oil in the rest of them because it was dry. Thus, you are pushing all the oil that the compressor has hugged back to the rack? Are you going to manually fill the compressor before opening the oil supply?
@steventorman3993 So I just drain the oil out to like, A normal level if possible. So it's not bone dry if I can help it. The way I fill up the compressor is I open the oil line and just allow the oil to flow in. Maybe I'll give it like a minute, But once it starts running it just fills right up.
Yooo I do commercial rack refrigeration this is a big tip here only question doesn’t the compressor need oil mechanically or it would destroy itself? Looks like you didn’t pump it dry though ?
These compressors are pretty tough. A couple of seconds with no oil isn't gonna destroy it. There's still an oil film coating everything even once the pump has stopped picking up oil. I've seen Bitzer compressors run in a constant flooded state for several years. There was one running with the entire bell housing covered in ice in the assembly plant at Bitzer Germany. I was told it had been going like that for 2.5 years and the previous one lasted 12 years.
The compressor is not turning on, For whatever reason, the compressor won't turn on. The compressor is fine. Except one of the safeties or possibly the controller is not cycling it. Because of this If a compressor is down like this, it will eventually fill up with all of the oil in the system. So all of the other compressors will be starved of oil, and then the rack will go into oil Failure. I hope that helps :)
Okay, the cause why it's filling with oil it's because the pressure will be lower on that compressor? On the system' I know they run a level meter and solenoid valve to open when demand is ✌️🐧🐧
@rasmushelvad1451 The reason it fills up with oil. Is because oil will naturally return through the suction Header. And if that compressor never turns on, the oil will slowly fill up the compressor through the suction
@@rasmushelvad1451 I actually believe it has nothing to do with the pressure at the compressor but that the compressor is the lowest point on the suction group. So because the suction hitter and the suction side of the compressor are the same pressure gravity as the factor so the fact that gravity is acting on the oil pulls it to the lowest point of the suction header, which would be that compressor that is no longer operating. And so eventually it just keeps filling up and filling up until all the oil in your rack is stuck in the compressor I hope that helps
@@gendronhvac-r1269 I have a Copeland 4D semi on a medium temp rack. Its working but after like half minute its tripping on overload (INT 369 diagnose). Module LED error code says its a dynamic switch-off trip, which means the module sensing that the sensor temp increasing too fast and trips even the compressor is not even hot yet. Also I found the contactor pitted which it shouldnt be after 4 months of run. Compressor got replaced along with a contactor and breaker 4 months ago so its basically brand new. I got the Fieldpiece megger to check the windings but I dont think its working with 4Ds. Ive got a weird reading starting at 1200mohm and going up to 2000mohm and then I got OL. I compared it with a good running 4D on the rack and was doing the same thing. Anyway, is there anything I can check before replacing the contactor and overload module and then lets see what happens?
Your videos are great. Keep making content.
I just found your channel and I love it. I work for Hussmann on the manufacturing side of things and it’s really cool to see these things (even if it’s not one of ours) out in the field working. Keep up the great content!
I'm jealous of your rack house. All mine are on a roof😅
Some of mine are, but it is much nicer when they're inside.
I used to build these compressors at the Bitzer plant in Oakwood Georgia. What supermarket is that King Soopers?
You worked at Bitzer in Oakwood? Small world! I work at Hussmann in Suwanee and used to live less than 2 miles from the Bitzer plant. We use a ton of Bitzer stuff!
@@Eevee_133 I worked there back when they use to build racks and for a little while when they started assembling the compressors. I use to take the green bitzer compressors and paint them blue and change the label. Then they were Ingersoll Rand. We had a section at the Hussmann facility over by the loading docks where IR compressors were stored. I had to go there occasionally to pull orders. I've had to deliver to Hill Phoenix in Conyers too. Both facilities are huge. I haven't been at Bitzer since '06. I wanted to learn more so I chose a job that would give me more experience in the field before starting my own outfit. I haven't done any supermarket refrigeration since Bitzer stopped manufacturing racks ('05), but I am well experienced in residential and commercial HVAC and low and medium temp refrigeration.
do u give private sessions ? ur smart man
Thank you your words are very kind.
I never thought of such a thing. I'm not even sure how I would do that.
Like your video man! Was wondering if I can call you for tech support on rack calls 😂
Lol Thank-you For the compliment.
I'm happy these videos help !
Why I it sucking all the oil out of the header? Bad oil float assembly?
The compressor is not turning on,
When the compressor doesn't turn on for Long periods of time, it sucks all the oil out of the system.
So that I understand...
This compressor was off for some time, the oil float was open, thus the oil from that compressor drained out.
You came, brought it back to life, and it started hogging all the oil in the rest of them because it was dry.
Thus, you are pushing all the oil that the compressor has hugged back to the rack?
Are you going to manually fill the compressor before opening the oil supply?
@steventorman3993
So I just drain the oil out to like, A normal level if possible.
So it's not bone dry if I can help it.
The way I fill up the compressor is I open the oil line and just allow the oil to flow in.
Maybe I'll give it like a minute,
But once it starts running it just fills right up.
Yooo I do commercial rack refrigeration this is a big tip here only question doesn’t the compressor need oil mechanically or it would destroy itself? Looks like you didn’t pump it dry though ?
The Oil Pressure Switch will turn off the compressor once it's low on oil. Unless it's not working lol
Yeah just don't pump it dry,
You know, you pump a dry cause. It will make a bad sound a very bad sound.
:)
Good questions
These compressors are pretty tough. A couple of seconds with no oil isn't gonna destroy it. There's still an oil film coating everything even once the pump has stopped picking up oil. I've seen Bitzer compressors run in a constant flooded state for several years. There was one running with the entire bell housing covered in ice in the assembly plant at Bitzer Germany. I was told it had been going like that for 2.5 years and the previous one lasted 12 years.
Why are you doing this, cause you need to change the compressor?
The compressor is not turning on,
For whatever reason, the compressor won't turn on.
The compressor is fine. Except one of the safeties or possibly the controller is not cycling it.
Because of this If a compressor is down like this, it will eventually fill up with all of the oil in the system. So all of the other compressors will be starved of oil, and then the rack will go into oil Failure.
I hope that helps :)
Okay, the cause why it's filling with oil it's because the pressure will be lower on that compressor?
On the system' I know they run a level meter and solenoid valve to open when demand is ✌️🐧🐧
@rasmushelvad1451 The reason it fills up with oil. Is because oil will naturally return through the suction Header. And if that compressor never turns on, the oil will slowly fill up the compressor through the suction
@@rasmushelvad1451
I actually believe it has nothing to do with the pressure at the compressor but that the compressor is the lowest point on the suction group.
So because the suction hitter and the suction side of the compressor are the same pressure gravity as the factor so the fact that gravity is acting on the oil pulls it to the lowest point of the suction header, which would be that compressor that is no longer operating. And so eventually it just keeps filling up and filling up until all the oil in your rack is stuck in the compressor
I hope that helps
Post more videos
Hi, is there an e-mail or something I can reach you out?
Thanks
Not really,
I try to Be kind of like off the grid.
But why? What did you need? You could comment below or give me a rough summary if it's not private.
@@gendronhvac-r1269
I have a Copeland 4D semi on a medium temp rack. Its working but after like half minute its tripping on overload (INT 369 diagnose). Module LED error code says its a dynamic switch-off trip, which means the module sensing that the sensor temp increasing too fast and trips even the compressor is not even hot yet. Also I found the contactor pitted which it shouldnt be after 4 months of run. Compressor got replaced along with a contactor and breaker 4 months ago so its basically brand new.
I got the Fieldpiece megger to check the windings but I dont think its working with 4Ds. Ive got a weird reading starting at 1200mohm and going up to 2000mohm and then I got OL. I compared it with a good running 4D on the rack and was doing the same thing. Anyway, is there anything I can check before replacing the contactor and overload module and then lets see what happens?
I got it, looks like it was just the pitted contactor.
@@tid3802
Sorry for the delay,
TH-cam doesn't really inform me on when someone comments on a comment.
But i'm glad you figured it out