Welcome to the Advanced Refrigeration Podcast, the ultimate resource for HVACR professional development. Our podcast, hosted by industry experts Brett Wetzel and Kevin Compass, delves deep into the latest in refrigeration system education, covering everything from supermarket cooling systems to advanced HVACR technologies. We provide detailed tutorials on rack refrigeration components, CO2 booster system troubleshooting, and energy management in HVACR. Join our engaging HVAC troubleshooting guides and live stream discussions, where we explore commercial HVAC expertise and industrial cooling systems. Whether you're a novice or a seasoned technician, our podcast offers invaluable insights into refrigeration maintenance tips, HVAC system diagnostics, and energy-efficient cooling solutions. Tune in to elevate your career with cutting-edge knowledge and practical skills in the HVACR industry. #EnergyManagement #RackRefrigerationComponents #HVACLiveStreamDiscussions #CO2Troubleshooting #CO2
I'm starting up one in Warner Robbins Georgia. The Ke2s keep flooding the rack working with ke2 to get these set up properly. I'm not a fan of the low temp comps discharging into flash tank instead of medium temp suction.
That’s what I have been hearing about the green and cool racks. I did an intergration on a 10 year old on up in NorCal using e3 and it was a pain in the ass. The PLC in my opinion over complicated. The seems to be a Walmart or Sam’s
Wireshark is a good utility to have for BACnet. Contemporary controls makes nice BACnet routers as well as B + B Electronics (now part of Advantech) along with higher end converters than say from Amazon.
Guys may I please have the discussion with Tyler enviorguards at Costco but retro from R22 to 407f with a evap condensor in Arizona . Most of the stores consist of horizontal receiver no liquid header utilizes a sub cooler setpoints 50 . Yea it has spr valves at the queen valve and after the king valve after that spr valve is the OLDR-20 . Previous contractors label latent gas and hot gas on that head from the receiver . Down stream is the A9 valve hot gas bypass to receiver to raise liquid pressure if need be . Most stores switch to micro Thermo which I’m barely learning . But where the F@&$ do I start to correct the existing issues . I’m talking about any situation to many defrost at once . Txv screens being cleaned . Evaporators plugged etc. ESR valves at all of the suction circuits except for the POS freezers . I’m just not getting the setup . Not to mention the add ons for produce or deli cases put on the rack I mean really they needed hot gas for the produce walk-in cooler ?? Wtf man Tyler model P130-323
An important point was missed. The GWP effect is when there is a LEAK! not while it's in the system. When & IF it leaks when there is a fire, it will propagate the fire!!! Also, very important flammable A2L (R32 or R454B) might and could INTERNALY explode. This is true if the vacuum process (must be higher than R410A an A1 class non-flammable, non-explosive class) is not perfect (presence of moisture/oxygen) as when compressed the temperature could reach the lubricating OIL ignition temperature, and in the presence of flammable refrigerant (any A2, A2L or worse A3) the oil might ignite the flammable refrigerants! This possibility will not exist if A1 class non-flammable refrigerants are present. Neil Afram Director of Space Air Ltd. distributor of AC & Heat Pumps since 1980. Relevant rules & regulations: ASHRAE 34/15 & ISO 817/5149
What's going on guys was wondering if you could give me some advice I want to switch to startups/ commissioning been following you guys for some time now much respect taught me a lot... I've been in field for 10+ yrs now been doing rack for 5 I currently work for one of the largest retailers/ grocers.... Hill hired me as a pm wasn't for me I need to be hands on any advice kev any recommendations??
Have seen factory install the wrong fan blades in coffin freezer cases, thus moving too much air and spilling air out of the case. Ambient air now makes up the loss and creates a huge load on the coil. Pressure drop is huge. Keep up the good work guys. Jim, Micro Thermo (retired)
Can you go over the ipro on how to make the xev drive the BGV and HPV with a cds and not 0-10vdc. The e3 changes, but the visograph just flips the two valves.
This guys needs to update to 2.28F02 no beta. At least have 2.29 beta in the thing. Can Ryan go over all the failures they been having? I had three dead out of the box last week alone. It seems to be 2.26F02 related.
Ok just correction on this. Description file is e2 world and ADF file is e3/ site supervisor. There is a big difference total different file they can’t be crossed linked between e2 or e3. Kevin is correct you have to load the ADF file before the license you can’t load the ADF file off the e3 you have to have the file before hand unless you have connect plus access. The license has to be regenerated by Copeland/Emerson, they won’t charge you since the license is already bought in the other e3.
I'll say it again, I thought I was up on Co2 but maybe you guys are working above UK operational stats but Gee you go into things that I wouldn't consider> We have some systems using CCMs as an EPR and I always worry what could happen if the system stops (power goes off) and the CCM is almost closed but the fact you're thinking about this and putting in a check back to the HP side, is frankly inciteful/thoughtful and you made me think... However, we here are swapping CCMs for mechanically backed valves so they aren't reliant on a backup voltage to open, don't get me wrong.. there are some restrictions to this operation including the failure of the Mech device but it's much safer that what a lot of companies have done over here.. I'm really taking on board your chats.... Thank you!
I don't even know how I saw your chanel, but I thought i was up on Co2 (from the UK) but you guys really opened up some ideas>i'd really be interested in how you guys manage in higher heat with excessive flash gas etc?
I am wondering what Raley's would use instead of the thermosyphon type condener/evaporators to chill the CO2, since Ed did not like the efficency penalty incurred with the lower suction temps required to run this type of system. It certainly involves some creative engineering with the Lakos system and fluid coolers coupled with the dry coolers.
No turn Kevin, on the tile points you can do a send to all circuits and or cc200. Yes if they have multiple case sensors or what have you you need to clean it up, but what I do is I do the biggest line up and then go back though all the others.
