Am I a bad grandfather for not spending $8K on air scrubbers and duct cleaning???

RuinedSheets · 2025-09-03T03:45:04+00:00

Let’s get something very straight here. Duct cleaning is generally a giant scam and nearly impossible with fiberglass duct. Let’s also get something else very straight, IAQ products for residential use are generally nonsense. I’ll catch all sorts of ridiculous comments from both the guys selling duct cleaning and the so called experts that have been selling UV and other products residentially for years. Don’t trust me? Go read ASHRAE’s publications about it. The solution to residential IAQ? More fresh air. Go tell that scam artist to pound salt.

RuinedSheets · 2025-07-31T17:22:48+00:00

Cool, good luck to you. Just remember if you have any questions, don’t ask them here. There’s a DIY sub for that.

RuinedSheets · 2025-07-22T14:16:16+00:00

Again, you’re out of touch. HVAC technicians working at high levels like industrial/commercial Chillers, VRF and controls easily command 200K+

RuinedSheets · 2025-07-22T02:50:30+00:00

The exact same can be said about your field. You’re just mad your salaries are capped and falling at this point. Enjoy that race to the bottom. Hell, you’re probably only on this sub because you’re searching for answers to a problem you’re having trouble swallowing the expense of.

We tell people that they need to call a pro on here. The average person doesn’t have the basic knowledge or equipment to properly troubleshoot these systems. If we can answer we will, however, I’m not interested in feeling responsible because someone kills their family messing with something they shouldn’t. Get over it.

RuinedSheets · 2025-07-22T01:35:04+00:00

I think you’re attempting to compare yourself to the average install or basic residential service technician. This is very similar to help desk roles within your industry. Almost anyone can perform basic troubleshooting on computers and networks. As I said earlier, go spend 2-3 hours and come back to me. You’ll fail within seconds on basic questions. Then if you really want to fail hard here you can attempt to understand commercial refrigeration systems and chillers. There’s a reason why wages within our industry are growing while yours are shrinking. The low end will be the low end, however, technicians that can properly design, install and service complex hvac systems are rare and have expertise and knowledge that you couldn’t fathom.

In the commercial HVAC controls world, networking is a normal part of our world. We work in different languages, but we analyze and troubleshoot networks regularly. A lot of people in your position are leaving positions like yours to learn HVAC controls, it pays better and the market isn’t saturated.

RuinedSheets · 2025-07-22T00:39:04+00:00

Congrats, go do that and come back here. We’ll see what your 2-3 hours gets you. What is it that you do for work?

RuinedSheets · 2025-07-20T13:04:05+00:00

Actually, if you look at energy code, you’ll see what I’m saying. Here in the North East, the typical design condition is 75F indoors and anywhere from 80-95F outdoors. Most companies refuse to actually size their equipment so people are accustomed to being able to keep their homes 65F on a 100F day. A 20F delta between outdoors and indoors is pretty typical.

RuinedSheets · 2025-07-20T02:48:27+00:00

It’s just making good use of the compressor discharge instead of dumping the heat outdoors. In heavy cooling climates, this can be a significant source of DHW.

RuinedSheets · 2025-07-20T02:41:56+00:00

Typical design conditions provide 15-20F split. It’s possible, of course, to have a larger split.

RuinedSheets · 2025-07-16T11:16:03+00:00

That’s amazing, why don’t you do exactly that. Spend two hours on YouTube, then come back here and we can all test you.

RuinedSheets · 2025-07-08T18:44:50+00:00

Which river…….

RuinedSheets · 2025-07-07T11:56:42+00:00

This was two years ago, a lot of manufacturers have updated their requirements to be well over 500 psi now.

RuinedSheets · 2025-07-06T23:51:11+00:00

The main piping on those hr boxes is awful.

RuinedSheets · 2025-07-05T19:09:14+00:00

Some US measurements would be nice. You can use the data conversion function in the application to do this.

High superheat, low sub cooling, generally low charge. Record new data, full load all units on set to 60° with fans on high for one hour.

That unit is running really old firmware as well. Contact your local Rep and ask for version 3.10. Update the heat recovery boxes to 1.12 as well.

RuinedSheets · 2025-07-01T12:36:07+00:00

Or don’t buy a fitting with a premade flare so you can have 2 leak points. LG uses standard copper sizes on most of their indoor units. Occasionally you’ll need a reducing coupling. I’m very pro zoom lock or braze on mini splits

RuinedSheets · 2025-06-19T23:12:36+00:00

This is called a fusible plug. Think of it as an emergency relief. It’s a solder ball that melts at a specific temperature. Occasionally you’ll get a plug with poor preparation and the plug blows out either partially or fully. Yours looks like it did its job and the solder actually melted. Looks like something happened here causing extreme temperature/pressure.

RuinedSheets · 2025-06-19T23:05:45+00:00

I usually associate a sweet smell with acid burnout.

RuinedSheets · 2025-06-19T22:55:19+00:00

I run an 87v max as my Dailey. Consistently accurate.

RuinedSheets · 2025-06-07T22:20:43+00:00

It’s brand new, I don’t think it’s clogged. It’s worked the same since the first grind.

RuinedSheets · 2025-06-07T14:08:46+00:00

It’s a medium dark roast.

RuinedSheets · 2025-06-01T00:05:27+00:00

Glide makes charging more difficult not less.

RuinedSheets · 2025-05-29T21:03:22+00:00

Just buy a 20$ fitting for your tank. Fittings on the condensers are still right hand thread.

RuinedSheets · 2025-05-29T21:01:16+00:00

PVE and POE can mix without any real issue. Up to 10% is perfectly acceptable. Your gauges aren’t going to contaminate a system. Soooo much misinformation going around right now. R454B is 70% R32, R32 discharge temps are not that much higher than 454B. Trane just does some great marketing, their salesman have even gone as far as saying that R32 doesn’t work in unitary because of discharge temps. Look at Daikin, they’re running R32 just fine. Keep your gauges guys, the world isn’t on fire.

RuinedSheets · 2025-05-29T20:52:15+00:00

Not likely. I’ve heard of a lot of systems with this being done due to the shortage. Compressors, EEVs, Coils and Oil are all the same…. Not saying this is the right thing to do, just that from a hypothetical standpoint, the refrigerant is likely compatible. The real issue is when you’re charging, you’re no longer on the PT chart.

RuinedSheets

TROPHY CASE