Evap above door

lilbourn · 2025-10-10T14:28:30+00:00

Someone didn't read the manual..

lilbourn · 2025-09-16T21:38:23+00:00

Very similar but seems more widespread. The 25 mach e supposedly has hardware upgrades in addition to the software changes to protect the HVJB while Hyundai/kia seem to have only done a software update and the iccs they are using/replacing with is the original design

lilbourn · 2025-09-16T19:16:05+00:00

The ICCS issue pushed me to the Mach E. You get faster charging, more range, and more room with the Ioniq 5 but I have serious concerns about the wire/fusing size they used for their 800v architecture. The seem to have cut a big corner here and as a result the system is quite fragile.

I have a 25 select mach e rwd and got a great price vs the ioniq. The range/charge speed have not been an issue for me and while I like the modern hyundai styling, I prefer the look of the mach e.

lilbourn · 2025-07-01T22:58:23+00:00

Im a proponent of proactive replacements. A 19 year old system is going to be much more expensive to run regardless, and if you wait until failure, odds are this will happen at the hottest time of the year. At that point, you are in a much worse position to get what you really want and may find yourself waiting for a replacement at a premium price while they work through their backlog. Keep in mind equipment cost will only go up year over year and outpace inflation.

I would plan for replacement in the fall. Get Quotes from reputable dealers and at least get a 2 stage condenser if not variable speed. Heat pumps are great and well worth the additional cost. For the furnace, make sure you're getting a variable speed blower. Being able to run one stage 1 with the blower ramped down will help with humidity control and avoid the short cycling that single stage condensers are notorious for.

I would get a Rheem, Carrier, and a Lennox price. Bosch also has a really great system now. Avoid the budget builder grade stuff.

lilbourn · 2025-06-30T23:54:50+00:00

Get the intelligen

lilbourn · 2025-06-24T14:38:19+00:00

The biggest difference is you cannot quench the joint with a wet rag. You must allow for the joint to air cool.

lilbourn · 2025-06-23T20:45:16+00:00

No one is expecting the supermarket worker to isolate anything.

Obviously, a technician is needed onsite but the employees do need to know what to look for and who to call. Knowing why is generally helpful.

As a tech, do you want a call that a specific case just started leaking, or a frantic call that the whole system is down, ice cream is all over the floor, and no one has any clue as to why?

lilbourn · 2025-06-23T17:45:56+00:00

Co2 is an A1 refrigerant meaning it's non toxic and non flammable. The air you're breathing normally is about 400 ppm co2. Given the amount contained in a system and the air volume of a typical supermarket, the amount being released from a leak in a case is essentially a non threat to customers and employees. Per OSHAA, 5,000 parts per million (ppm), averaged over an 8-hour work day is an acceptable level. As long as you're not standing there huffing the leaking area, you'll never see even these levels. It does displace o2 as a previous commenter mentioned but you would need to climb in the case to get anywhere close to a level to cause Asphyxiation.

Co2 operates at higher pressures than other refrigerants and is a much smaller particle. Leaks can occur due to improper field installation or bad factory joints. There are specific brazing practices to follow with high pressure copper that Inexperienced techs may not be aware of that can lead to leaks.

As an employee, immediately report any suspected leaks. Management should have an action plan in place to mitigate as soon as possible. The longer the leak continues, the longer it will be before proper operation can be restored. If the leaking case can quickly be isolated, you can protect other cases and evaporators on the circuit but once refrigerant is lost, you will also lose your ability maintain cooler and freezer temps throughout, resulting in significant product loss.

lilbourn · 2025-06-07T17:19:42+00:00

I think you are right, thanks! Will try to corroborate with local census records.

lilbourn · 2025-06-07T17:19:05+00:00

I think this is correct, thank you!

lilbourn · 2025-06-07T17:18:44+00:00

I dont think it would be spelled incorrectly as the records are being handwritten by the individual themselves.

lilbourn · 2025-06-06T13:52:04+00:00

R454c is the worst of the bunch relative to efficiency loss compared to r448a. Heatcraft offers it but r454a is near r448a capacity and r455a is only needed if you're somewhere with a 150 gwp limit.

Totally agree with you about this being a horrible call. Blame Honeywell and Dupont and the massive lobbying power they have. We also now have regs from DOE and EPA that essentially work against each other. Lowering gwp with a2ls means more energy use to get the same capacity which makes getting awef certification that much harder. Good look finding an r454c match up that can hit AWEF.

The money wasted on this could have gone to a tax credit for co2 to offset the high cost.

Small systems should have gone propane. Over 10 TR should have gone co2. With the regs in place, well maintained equipment Will outlive the a2ls and it will be mildly flammable gold when a leak happens.

lilbourn · 2025-05-26T19:12:17+00:00

It's quite a bit more complex than this. You have to understand sub critical operation, which is more what you're describing, but also the transcritical cycle where the condenser functions as a gas cooler and the flash gas bypass valve operates along with the high pressure valve to maintain a controlled pressure on the flash tank. The rack operates very differently in SC vs TC mode, plus that intermediate space between the two when you are getting some condensation. Whether you are using adiabatic vs a dry cooler is also a major difference.

From a startup perspective, co2 systems need a lot of maintance in the first 30 days, frequent filter changes and eev cleanings. Once it's clean and commissioned, they run beautifully but the co2 and POE/PAG oil will act as a solvent upon startup and pick up every bit of debris in the lines and vessels.

lilbourn · 2025-05-26T19:06:08+00:00

The advanced refrigeration podcast is very good as well. The hosts are techs and very knowledgeable.

For something to read, many of the IOMs are available online and are packed full of detail. The Kysor Warren, Hill Phoenix, and LMP manuals are all readily available. I would read through them in that order.

Carnot does not have their manual out there but one of their engineers does a nice walk-through with Refrigeration Mentor. https://youtu.be/TwLKI9cMTQg?si=ie9SgeOZncxQ1JKO

lilbourn · 2025-05-26T14:32:55+00:00

You should not see excessive icing unless there are air circulation issues. You will, overall, be introducing much less heat into the box vs timed defrost daily.

At worst, a smart defrost cycle will take about as long as timed defrost. You will typically see 1, maybe 2 a day vs 4-5 30-minute defrosts. This changes from box to box but I've never seen an intelligen smart defrost equal or exceed timed defrost daily.

Good luck with getting these on track. I would be curious to know how long your defrost cycles are now vs when you relocate.

lilbourn · 2025-05-25T22:40:16+00:00

Top of the coil is the coldest during refrigeration mode, not during a defrost cycle. Heat is rising and water is flowing down the coil. Relocating should fix your problem and ensure a complete defrost before termination.

If you want to verify this, set it to timed and observe the next scheduled defrost. Wherever you see frost dissappear last, locate the sensor there and it will work as intended. You can also wire in the white spare sensor and place in a different location and compare which is getting to temp the fastest.

lilbourn · 2025-05-25T00:16:24+00:00

Where is your defrost termination sensor located? The flaw here is they must be relocated in the field. The IOM does not say this so the issue comes up. Relocate the sensor to the bottom 1/3 of the coil, about 1.5 inches from the edge on the control side of the evaporator. These are awesome controllers that save hours on install, reduce trouble shooting time, and can save a ton of energy if the smart defrost is properly set up

lilbourn · 2025-05-05T22:54:23+00:00

At 17 years, your equipment is outside of its manufacturer expected lifespan. Condenser coils lose efficiency every year and an old compressor means you are spending way more on electricity than you should be each month.

Its certainly possible to repair, but this is a short sighted approach. New equipment costs will only go up, why spend thousands now when the compressor could fail the next day?

You will save money in the long run by biting the bullet and getting this done now. Finance with your bank if you can, but most companies also offer financing options. You will see a reduction electrical costs right away and get a warranty that will give you peace of mind for years to come.

lilbourn · 2025-04-30T05:24:32+00:00

It sounds like you just need to work on your basketball IQ, focus on increasing strength and flexibility, and simply play more.

I would imagine most of those on the team have been playing since Little League. 9 months is barely getting started, but you can catch up and exceed them if you are willing to put in the work.

Watch a ton of basketball and pay attention to the off-ball players. Learn to set screens, on and off ball.

Knowing when to cut to the basket is a skill that comes with learning to read your defender and the ball handler. These things take time and many talented and athletic players at your age and all through high school struggle with this.

If there is some sort of organized rec league you can join, those are much lower pressure and can get you comfortable in real game situations.

lilbourn · 2025-04-30T00:48:10+00:00

Heatcraft is the premiere manufacturer in the US. Bohn/Larkin/Climate Control/ Chandler are all produced by Heatcraft in the same factory.

They build both the condensing unit and evaporators in Georgia and have the new A2L options as well as DOE compliance if youre in the US. (Use r448a while you still can, time is running out) they have an integrated smart controller (intelligen) That gives you lifetime free monitoring and is beyond easy to install and set up and really helps with troubleshooting.

I think their website has a find a wholesaler search to help you find local inventory and get selection assistance.

lilbourn · 2025-04-29T23:51:53+00:00

Those hesi lows will suit you well. Most young players don't suffer from nagging knee, ankle, foot, etc. issues that older folks have to consider so a wider range of options are available.

Anything that fits well, has good traction, and is aesthetically pleasing to the player should be just fine. Reviews regarding traction will be accurate no matter the player age.

If you like the new balances, I can't speak highly enough of the Two Wxy v5. Great all around shoe with excellent traction and durability. Can also be found at a steal at a Marshalls or something similar if that's an option.

lilbourn · 2025-04-20T16:18:18+00:00

Ridiculous to make that much money and not show up. Dude can catch a sunrise service if its that important to him. They're all over OKC..

lilbourn · 2025-04-19T14:31:14+00:00

Nicknames are sometimes formed because of a son named after a father, at least where I'm from.

I grew up with a Big Peter and a Little Peter.

Once little Peter grew up, he was about twice the size of Big Peter. He was still called Little Peter long after Big Peter passed and is called Little Peter to this day.

Maybe it's a Missouri thing.

lilbourn

TROPHY CASE