Man you really do it all, air cooled chillers, rack systems, water loop systems, restaurant refrigeration, commercial RTUs, even residential splits. I'd love to be your apprentice and shadow you man. Love the content you upload for us.
I'd pay a subscription fee just for watching Rick working on racks more often 😎 Keep in mind that stacked fresh vegetables and baskets with produce block more airflow than cans and bottles. Water sprinklers worsen airflow by making it denser. Cheers!
Thanks my friend👍👍. I have more to show but I'm not as quick at it as my other tasks. Follow me on Instagram, I post a lot of clips on there. I use the same name. instagram.com/hvacrsurvival?igshid=ZDdkNTZiNTM=
Retired now but rack systems were my bread and butter back in the day. HT and LT racks. Great fun when an LT pack goes down at 2am and youre the on call tech!
Way to dig into it, uneven case temps are always frustrating. Only other thing I would have done was confirmed that each sensor was reading accurately. That's usually the first thing I do so I know my controller is getting the correct info. The 2 solenoids are to trap liquid in the coils during defrost.
@@HVACRSurvival you're using the liquid trapped in the coil for heat transfer. Kinda like how you would with gas defrost. The same thing as when you just have a suction stop or EPR.
As far as I know one of the reasons the engineers sometimes designed it that the Suction stop turns off instead of the liquid solenoid is to stop liquid hammer in the lines. I’ve seen unsecured liquid lines shake real bad when it opens and sometimes cracks 90s or rubs liquid lines close to the rack. Only happens on the circuits that don’t cycle quickly and a-lot of the liquid boils off in the line during the off time. Doesn’t happen often but eliminates that risk especially if the contractor doesn’t do a good job securing lines. It does trap more refrigerant out there so it’s a give and take I guess.
I was talking about the plain solenoid valve not the Sorit valve. I have racks with Sorit valves where that's how we regulate temp and it never closes. Thanks for checking it out 👍👍
16 years of rack refrigeration service before my body broke down. Some days I miss it, some days I watch someone clean a slimy produce wet case and thank God I’m out LoL.
Cut the two prong connector off an old fan motor and wire it to a junction box with an old extension cord maybe 6ft long with the female end still on. Unplug one fan motor and then you have 120v without running 100ft of cord.
The solenoids do trap refrigerant, but it's only vapor. Liquid line solenoid closes first, time is allowed to pump down, then EPR will be de-energized. Trapping lots of liquid could have bad outcomes. Design of those cases gives varying output temperatues, airflow low and un-even.
@big dawg that's why I wanted it in a positive pressure so nothing can get into the system. You don't want to pull a vacuum on a couple hundred feet of line as big as what this was. You also don't want to use nitrogen unless you absolutely need to. There's some things about rack refrigeration that you just don't do unless absolutely necessary.
As someone who grows a lot of their own food, it's not that much different than when the veg is still in the field. They get covered in all manner of stuff. Just wash everything and you're fine.
We have been having Problems with screens and dryers so I always have that in the back of my mind. We also have a few that were just converted over to poe oil and that will break junk loose as well
I'm fine with watching the racks, but I will admit that for the non-specialist, racks are VERY confusing. It seems like there's multiple compressors for multiple sections, but they share the same refrigerant (or at least that's how it _sounds_) So, Slime in the Ice (Machine)? (Look up that phrase, with Marvin Zindler as a name)
@@HVACRSurvival If that's all I'd need to know to get a job at your company, that either says something about the state of the company, or the people they end up interviewing.
Are those just a isolation solenoids on the case return? Or those PWM regulated proportional solenoids, as case pressure/temperature control? Talking about your comment about “trapping the refrigerant”.
Man you really do it all, air cooled chillers, rack systems, water loop systems, restaurant refrigeration, commercial RTUs, even residential splits. I'd love to be your apprentice and shadow you man. Love the content you upload for us.
I appreciate that!
Racks are fun. I for one am happy to see you doing more of them.
I agree, this equipment is a little challenging due to its age and lack of maintenance.
12:33 the old ranch dressing prop. Works every time!
Don’t forget to stop by the good ol ranch stand haha
I'd pay a subscription fee just for watching Rick working on racks more often 😎 Keep in mind that stacked fresh vegetables and baskets with produce block more airflow than cans and bottles. Water sprinklers worsen airflow by making it denser. Cheers!
Thanks my friend👍👍. I have more to show but I'm not as quick at it as my other tasks. Follow me on Instagram, I post a lot of clips on there. I use the same name. instagram.com/hvacrsurvival?igshid=ZDdkNTZiNTM=
Just started in the supermarket refrigeration world. Its great.
Retired now but rack systems were my bread and butter back in the day. HT and LT racks. Great fun when an LT pack goes down at 2am and youre the on call tech!
These stores are usually 55-60 miles away, that makes it even better👍👍😁🤦🏻
Mine were about 10miles away o London or South london.
This is the second time I see his video still one of my favorites
I take it it's not? 😁 I just reread it now I see what you're saying 🤦🏻🙂🙂
been doing supermarkets from hvac for a year now your right so much to learn but i love it
This is truly a never ending learning experience. 🤜🤛👍👍
You had me at Ranch dressing I like that little power washer , good vid as usual and hey to Chronic as usual ...
🤭🤣
Very interesting system.great work
That pressure washer is a game changer. I love it! Especially doing refrigeration everyday
I totally agree!
The battery and inverter cost more than the Port-A-Blaster itself...
Way to dig into it, uneven case temps are always frustrating. Only other thing I would have done was confirmed that each sensor was reading accurately. That's usually the first thing I do so I know my controller is getting the correct info.
The 2 solenoids are to trap liquid in the coils during defrost.
Good call👍👍 why trap it in the coil with a timed off defrost?
@@HVACRSurvival you're using the liquid trapped in the coil for heat transfer. Kinda like how you would with gas defrost.
The same thing as when you just have a suction stop or EPR.
Great job Rick.
Interesting video, I really enjoyed it!
Thanks Ryan!
@@HVACRSurvival I’d be so lost working on that equipment
Me too! 😁😲
Good work.
🤜🤛👍👍
You can only do what you do you did a great job! Keep up the great work.
That Port-a-blaster is cool. I don't do any PM'S anymore or I'd buy one.....might buy one to warsh my truck. Lol
I love it for repairs that need cleaned.
Sponsored by Marie’s Ranch dressing 😃😃💡
🤣😲👍👍 Joey
Great video and a stellar job as usual Rick. Enjoy seeing procedures on equipment I don’t work on.Keep up the great vids!
That's Dave, much appreciated 👍👍
Oh so that's how those supermarket refrigerators work
As far as I know one of the reasons the engineers sometimes designed it that the Suction stop turns off instead of the liquid solenoid is to stop liquid hammer in the lines. I’ve seen unsecured liquid lines shake real bad when it opens and sometimes cracks 90s or rubs liquid lines close to the rack. Only happens on the circuits that don’t cycle quickly and a-lot of the liquid boils off in the line during the off time. Doesn’t happen often but eliminates that risk especially if the contractor doesn’t do a good job securing lines. It does trap more refrigerant out there so it’s a give and take I guess.
Thanks for sharing your experience 👍👍
Nice video! Thanks
Bet that produce sludge must have released some lovely scents with the hot water ! Must have really opened up your appetite 🤌
Actually it didn't, Now if you break the crust of a old piece of chicken laying in the bottom of the pan.....NOW thats a different story~ !!😂
The solenoid valve on the suction line is an EPR it allows you to have different evap Temps on a single rack by regulating evap pressures.
I was talking about the plain solenoid valve not the Sorit valve. I have racks with Sorit valves where that's how we regulate temp and it never closes. Thanks for checking it out 👍👍
@@HVACRSurvival my bad
Great Video. Great work,. Thank you for sharing
I'm glad you liked it! Thanks!
Interesting video
Thanks For Checking It Out!
I can watch you WARSH coils all day 🤣🤣🤣
🌧️👍👍😁
16 years of rack refrigeration service before my body broke down. Some days I miss it, some days I watch someone clean a slimy produce wet case and thank God I’m out LoL.
I hear you, I work on so many different things that this is a welcomed break but about all the stores I work at are beaten to death with problems.
Any idea how old those bunkers are?
The honeycomb diffusers I remember were thicker than that. I think Hussmann had a patent on those at one time.
30+yrs
That buggy is convenient as shit. Lol
Do you have any information on the Emerson controller
What are you looking for? I believe the manual is on-line.
Love the rack videos!
🙏👍👍
Cut the two prong connector off an old fan motor and wire it to a junction box with an old extension cord maybe 6ft long with the female end still on. Unplug one fan motor and then you have 120v without running 100ft of cord.
Jalapeno peppers in Ohio? COME ON, MAN! 👍👍
The solenoids do trap refrigerant, but it's only vapor. Liquid line solenoid closes first, time is allowed to pump down, then EPR will be de-energized. Trapping lots of liquid could have bad outcomes. Design of those cases gives varying output temperatues, airflow low and un-even.
I’m surprised the OEM doesn’t have a option for pumping down the system for maintenance purposes. Sure would make things easier.
@Mike a lot of the options that make the job easier are installed optionally at the time of installation.
They’re meant to keep the evaporators at a certain psi to maintain temp tho right
Curious why you didn’t have to evacuate the line set prior to allowing charge back in after removing the screen (opening up the system)?
He had pressure in the system still when he removed the txv screen and kept this thumb over the opening so it never got into atmosphere
@big dawg This is Real life, we loose more in our refrigerant hoses when we purge our gauges than what 8 psi of vapor escaped for 2 seconds.
@@HVACRSurvival no issue loosing gas, just didn’t know with system open if it introduced atmosphere
@big dawg that's why I wanted it in a positive pressure so nothing can get into the system. You don't want to pull a vacuum on a couple hundred feet of line as big as what this was. You also don't want to use nitrogen unless you absolutely need to. There's some things about rack refrigeration that you just don't do unless absolutely necessary.
@HVACR Survival never nitro on a circuit still hooked up to the headers. There are no leak free ball valves.
Note to self - don't shop the veggies with the misting refrigerators. I don't like mold with my fresh veggies.
Mlat display case even witgout water have mold
It's best to not look to close at anything we eat😁
@@HVACRSurvival especially true after working in restaurant kitchens. I've seen some nightmares at popular establishments.
As someone who grows a lot of their own food, it's not that much different than when the veg is still in the field. They get covered in all manner of stuff.
Just wash everything and you're fine.
That's why you get black vents
❄️🇺🇸👍💪 nice work. If screen was plugged would there b heavy frost to ice on valve body ? Thanks for sharing ur experiences
We have been having Problems with screens and dryers so I always have that in the back of my mind. We also have a few that were just converted over to poe oil and that will break junk loose as well
👍👍👍
189 thumbs up
I do refrigeration but this is way over my head
Store staff should be cleaning those cases on a regular schedule. Still, I guess it’s OK to get paid for not so hard work.
I'm fine with watching the racks, but I will admit that for the non-specialist, racks are VERY confusing. It seems like there's multiple compressors for multiple sections, but they share the same refrigerant (or at least that's how it _sounds_)
So, Slime in the Ice (Machine)? (Look up that phrase, with Marvin Zindler as a name)
You're correct, that's how they work 👍👍. Your Hired 😁
@@HVACRSurvival If that's all I'd need to know to get a job at your company, that either says something about the state of the company, or the people they end up interviewing.
what did you do? called ghost busters? 🤪
👍🧿
👍👍 how you doing?
That’s a lot of shit to retain…
👍👍 Truth!
It looks disgusting in that case under the racks.
Are those just a isolation solenoids on the case return? Or those PWM regulated proportional solenoids, as case pressure/temperature control?
Talking about your comment about “trapping the refrigerant”.
The simple looking ones were just a suction solenoid, the valves on the end with hot gas were sorit valves, they are a EPR valve with a suction stop.
@@HVACRSurvival 👍