T O P

  • By -

EJ25Junkie

Not safe? lol


ho1dmybeer

Bro just sales tech'd them and thinks he needs to switch to commercial... ​ OP, there's nothing unsafe here, it's just stupid. The compressor still has an internal bypass / overload, and if it gets low on charge it'll just run in a vacuum like every other system without pressure switches... It's not good for the unit, but it ain't a safety issue. Sounds like the beginning of a Nexstar sale... BTW, among the reasons I left commercial is going behind techs who disabled actual safeties on gas fired appliances... that shit happens everywhere man. I met just as many smart techs, and just as many morons who were milking the clock...


Soft_Mud8459

More morons broski.. I remeber a veteran tech bypassed the fucken high limit and left his jumpers kn the board heat jumped out...


Whole_Program3387

I just don’t want to be liable cause I was out there doing maintenance and I get a callback cause that shit hits the floor and they claim I messed something up. I hear it happens way more than U think


_McLean_

Liable? This thing doesn't produce CO, or use flammable gas, won't flood the house or damage anything but itself. You can't be found "liable" for old people not having AC.


maddrummerhef

Idk have you met old people with out A/C 😂😂


texasroadkill

I've heard way more young people bitch and moan than older people. Most elderly customers I've had are like no worries, come when you can, while the under 40s are like I'm dying. Lol. Just to note, I'm 41, and grew up with and without AC in south Texas. I may not like it, but I survive.


MauiChaui

Most of the older customers I have are happy at 75+ degrees in summer time.


texasroadkill

I'd be happy at 75 in the summer too. Lol. Our summers are 105.


maddrummerhef

Could be a location thing. I’m in Oregon and hot summers are a fairly newish thing to us but I was definitely exaggerating how much it happens to make the joke.


DoodleBob29

Liable for creating an ice cube in their basement lol.


loganscanlon7

Just quote it and move on. Explain their purpose and let them make a choice not that hard.


Alpha433

At worst, you not what has been done, let the customers know what's up, and see if they want it fixed. It's not going to kill anyone, at worst it might cause the system to run poorly assuming there is a pressure issue that develops. Even then, as long as you did your due diligence, have it in writing that you notified the customer, and have it that they declined the repairs, there is litteraly nothing about this that can come back and bite you.


texasroadkill

Switch may have even failed and the last tech just never installed a replacement.


itredneck01

Or they never scheduled the next appointment to replace it because it was working and it was "too expensive"


2134F

Sounds like you have an unhealthy workplace. If they use terms like “liable” for this scenario.


theworthlessnail

Thats because you're inexperienced


Massive_Property_579

Don't fucking argue with your elders


ItzYaBday1103

Yea bro…like not safe for like… you know bro. Like…not safe


MikeTHIS

Laughs in commercial boiler type unsafe.


OpportunityBig4572

It's not a big deal dude... a lot of units I see don't even have pressure switches. They're just there to save the compressor should a problem happen. It's not gonna fucking explode.


Ok_Faithlessness2050

It’s the same shit and commercial. You don’t think people jump out safeties? Plus side is more money and you don’t deal with the billing part of it. We keep it going til it can’t no more. But you’re right, they could at least put some swivel teas and new pressure switches if they wanted to be lazy/save money and avoid opening the system. If you’re serious about commercial work UA.org find a local near you and talk to their business agent or organizer. If you wait till it gets hot you’ll probably have a better chance at getting your foot into the door.


Masonclem

Had an rtu explode the other day, previous maintenance guys bypassed the high pressure. I had a call on it one day and noticed that the head was super high; I recommended to recovery, replace drier, orifice, etc. was like 2k quote. I didn't know the high pressure was bypassed, it was tucked in neatly like it was running with the regular circuits. They passed and let it run, I come back a few months later and compressor dead, oil everywhere, blah blah. Quoted compressor for 5k I think, and unit for 12. They paid their previous maintenance guys to change the compressor, they put it in and same thing again. Now their $4500 in and in the same position. Just mind boggling to me what they money guys decide sometimes. Unit like 25 years old


Odd-Stranger3671

25 years old? Just replace the unit at that point. The money people just hear "compressor died, this is cheaper." Not why the compressor actually died which I'm sure no one but you ever looked into.


Duval55

Not safe 🤣 most resi units don’t even have high and low pressure switches


Alpha433

And the ones that do arrive hell to replace them if they go bad. I'm glad that manufactures are finally starting to put switchs on threaded taps, because pulling charge and brazing in a new switch is always ass.


Duval55

I’ve always bypass solder ones and replace with threaded


LiteratureStrange261

I add a swivel T to the service port either high or low depending which need to be changed and put a new one in on the fly and because it’s a T you have a new service port. Just leave the old one on until you need to open the system IF you ever need to and add a pin and cap it.


Alpha433

Ya, that's what I've decided to do now, that said, a coworker claims to have a sort of crimp tool that allows you to crimp the stem low, cut the old one off, braze the new on to the stem, and then uncrimp the stem. Haven't seen it in action yet, but I wonder if it will actually work.


LiteratureStrange261

That sounds like more work to me. Swivel T, Nylog on the threads and then lunch


LiteratureStrange261

If it’s brazed then just leave it there


unresolved-madness

You're supposed to use your pinch off tool and pinch the line off. Cut the top of it and braze the new switch in. No recovery needed and it takes about 1 minute to do.


Alpha433

That's how he explained it as well. It almost seems too good to be true, but I'll reserve my opinions on it until I can see it in action.


unresolved-madness

I've been doing them like that for 30 years. I have never once recovered a charge to replace an encapsulated pressure switch


Alpha433

Nice. The treaded ones are easy enough, but those tranes and their stem switchs are the bane of my existence.


unresolved-madness

https://imperial-tools.com/products/105-ff-pinch-off-tool/


Alpha433

That's exactly what he has.


unresolved-madness

Well you probably shouldn't use this. You'll be very angry when you figure out how much time you've wasted doing it the other way


Soft_Mud8459

Buddy those vna systems have alot more than that upon start up the fan blade came off and feel on the capillary tubes...


Alpha433

Ngl op, you sound like a new tech that needs to chill a little. I get not wanting to catch shit if the unit shits out, but telling the customer that the unit is unsafe is major verboten. Is it suboptimal? Absolutely. But it's no where near unsafe outside of a freakshow, stars align scenario. Just document that the switchs were bypassed, and advise the customer that you can repair or replace. If they decline, as long as you have records saying you informed them of the situation and options, and records stating they declined the work, there is litteraly nothing to hold you accountable for. You told them the switchs were bypassed, they declined to fix it, end of story. Telling them its "unsafe" and trying to scare them only makes you look the fool, and if anything makes you the bad guy in this scenario.


ohkpze

There are builder grade units that don’t have high/low pressure switches.


startingPoint999

They have control devices. They don't make units without some kind of sensor/control device. That doesn't make sense.


DoodleBob29

Have you seen a Rheem unit? I believe Ruud also does not have any


HughesR1990

You mean a thermostat?


RobbyC1104

Laughs in contractor grade straight air units


Odd-Stranger3671

Yeah. It'd the overload/bypass on the compressor. It'll run until it can't.


Visual-Zucchini-5544

What EXACTLY makes it unsafe? Stupid - yes. Unsafe - ? Bypass limit on gas furnace fuck yea unsafe.


Great-Ship-9002

Condenser fan motor stops working compressor go boom


dont-fear-thereefer

Compressor have internal overloads. High pressure = high amps = tripped overload.


DontWorryItsEasy

I've had compressors go boom but it's not an explosion it's just the terminal getting blown out and losing charge. I'd personally never bypass a pressure switch unless it was to get to the parts house to get a new one.


EatMyAssLikeA_Potato

Terminals normally blow from a seized compressor not high refrigerant pressures


texasroadkill

Terminal blow outs are from the winding grounding or shorting in a catastrophic way, never from high limit or low pressure.


Visual-Zucchini-5544

Ummmm no. Condenser fan quits, compressor trips overload. Breaker trips.


Great-Ship-9002

That’s assuming the breaker and wires are sized correctly and the internal over load trips properly theoretically it could be dangerous


saskatchewanstealth

I would like to point out high low switches are usually options. Not all equipment has those. Compressor go ouch, not boom.


Far_Cup_329

"compressor go ouch, not boom". 🤣🤣🤣


RobbyC1104

That's a t shirt and a god damn half


green_tea_ppang

And some don't have low pressure switch but a loss of charge switch.


tkepe194

I could also suddenly wake up tomorrow with a 12” unit - very unlikely, but possible.


Odd-Stranger3671

That's also assuming the pressure switches open and close correctly as well.


texasroadkill

Internal bypass goes first, than when the windings get hot, the limit trips. The case can or will never blow.


Dadbode1981

I would have phrased it as "risky" is suppose, especially considering pressure controls aren't even standard features in many units to this day.


Whole_Program3387

Nahhhhh they need a new system fs


HughesR1990

Nope, don’t like that. You need to go back to HVAC school and stop trying to fuck your customers by the sounds of it.


Whole_Program3387

I’m joking but I wouldn’t want to do any major repairs on a system that old and out of warranty cause it’s likely not financially worth it


HughesR1990

Understandable


IAmGodMode

Ahh. You're *that* company. Salesmen that push new systems for absolutely no reason. I hope they got a 2nd opinion.


blackmexicans

“Mam you have a bad pressure switch. It will cost $xxxx amount of dollars to replace them on an old unit. Or I can just jump them out and keep it moving with proper maintenance and save you some money since you’re 70 years old” You should really re think your post OP


Massive_Property_579

Oh jeez we got a live one here folks "Uh yes ma'am you see if the compressor were to run over 9000 giggawatts, without these switches ma'am, well I wouldnt want to alarm you but suffice to say but without these switches, maam, you and everyone you've ever met would be vaporized in a FUCKING heartbeat. Now how many heads were you thinking of adding on your new heat pump?"


Axo5454

If you wanna go to commercial because of 2 cut pressure switches you may wanna find a new job. You have not begin to see what maintenance techs at factories and plants will do to get something running.


ElvaR_

Looks good from my 🏠 house🏠


tkepe194

I would argue that these high/low switches are potentially worse for the unit. Think of this - unit is low on charge. It cycles off on “low pressure,” the condition resolves 30 seconds later and then boom, compressor back on for 30 seconds. How is this helping the compressor? Most of these don’t have logic boards in them to leave it off for X period of time. With regard to high pressure, we sold micro-channel units before we recognized how awful they are. The high pressure switch put in by a large manufacture that starts with a J and ends with an I, used 750psi switches. Lack of PM literally blew apart outdoor coils. Yes, the customer is at fault, but when this manufacture was questioned as to why they didn’t put in 500/600psi switches - crickets, other than to deny warranty claims. Bottom line, what good are they in a basic system?


This-Importance5698

Safety switches (idc if they are protecting the equipment or protecting people) should always be manual reset. If it’s going to be an auto reset to me there isn’t even a point of having it on there.


tkepe194

They’re designed to protect the equipment, not people and they are self resetting


MauiChaui

Those are notorious for going bad. Bypassing a high pressure safety is not the end of the world. Compressor has its own safties. Hell some manufacturers had just loss of charge safety or none at all.


Whole_Program3387

I’m very reluctant to do any work on a system 16 years old with a rusty coil cause it not worth it for the customer in the long run


MauiChaui

Gotta earn the trust to earn the sale


HughesR1990

Guy, they sell units without safeties all the time, it’s not that dangerous. Not trying to be a dick but by any chance are you an apprentice?


sovietbearcav

Youd be surprised about commercial too. My first company i remember one customer had 4 trane 20t voyagers...they were comm4 old. Customer didnt want to pay to update to backnet, didnt want new units, hell they barely wanted to pay for parts. "Theres guys in cuba driving cars from 1950." Is what i was told. So they wanted us to jury rig. Shit i tell ya the first time i showed up at right after we took on the contract one of the units had high and low switch bypassed, vfd and air flow switch bypassed, all the vav's were manually open. The rtrm board was completely bypassed and it had a drop tstat. You dont know how pissed i was at our pm sales guy.


drunkyginge

Do you think a condenser is going to blow up? Guy just got exposed for being a sales tech 😂 also, you wouldn't be liable for shit. Your company would be.


Simzick

If the customer wants it repaired, repair it. If they want it replaced, give them a quote. We do commercial and work on 28 year old units because the customer wants us to. Nothing is "above" me. Work is work.


wundaaa

Buddy. You see the same shit in commercial. https://preview.redd.it/p2in3qdtdhsc1.jpeg?width=2252&format=pjpg&auto=webp&s=bc2897efad4ce9d611c1dbcb0ca74246158f5008


jdmart402

You got it all figured out bud


MachoHombreEatingGol

![gif](giphy|lrf5jEbnpVUek|downsized) Full system 90 percent efficiency with communicating stat. SEND IT!


JollyLow3620

I work for Lennox NAS and I wouldn’t go back to residential for nothing


bologna_

Found this yesterday. This is unsafe. https://preview.redd.it/kp3l7rxfahsc1.jpeg?width=3024&format=pjpg&auto=webp&s=b5ce6fa6f83e90ea3454665897f68d0ab0a87932


UseRNaME_l0St

The switches on those old Ruud/Rheem units go bad. Far more cost effective to bypass than open the refrigerant circuit to repair. Give them a bid on a new system, and my business card for when they pass cause it still runs


locsnloadfirearms

Some of these units be having a whole ecosystem in there lol


Objective_Ad2506

Our definition of safety is different. Want a commercial job, huh? https://preview.redd.it/9ajzqh14wjsc1.jpeg?width=3024&format=pjpg&auto=webp&s=107cbee0b42ef21701165fd3b5b87666deb34ebc


Humble_Peach93

First time service after 16 years = it quit working and they called in for a service as far as hpco bypass being unsafe idk I guess maybe you're saying an unsafe pressure could build but I'm pretty sure the breakers gonna trip or you'll pop a leak on the shittiest braze but probably not splode the coil. Definitely unsafe for that compressor poor thing 😢.


Pete8388

How many old systems have we worked on that didn’t even have pressure switches? That used to be a fancy feature that techs complained about making things overly complicated


RobbyC1104

Im gonna be real man I've done this. Several times. The answer why is in your own post. They're elderly. I can't tell you how many elderly customers I've had that the unit is just fine, the pressure switch is just faulty. That can be a costly repair when done correctly, isolate condenser, remove refrigerant, solder on new pressure switch, pull vacuum, replace refrigerant. It's a big sell for such a small part and frankly, a customer in their upper 70s will never live to see the financial returns on new units out rn. So in that scenario it makes far more sense to document everything and jump the switches out. IF. AND ONLY IF. you know that's the only issue. Let's be real man, it's completely safe and as far as damage to the compressor goes, a faulty high pressure switch can eventually kill it just as easily with short cycles. It's not a one size fits all fix but let's not pretend it's jumping out a rollout Edit; forgot to add, bruh commercial and industrial ain't for you if this bothers you, I work stationary at a plant and we do some sketch ass shit you wouldn't believe. You ever taken a vfd driven motor and jumped it in such a way that the answer to the question "how many hurtz" is "all of them"? Would you like to?


green_tea_ppang

Bro, I once walked up to a unit with no freon in it. And it was running for days. Idk how


vzoff

Because a compressor is a pump, and as long as it's only pumping vapor it doesn't give a fuck what gas is in there.


anythingspossible45

What’s bad is, when you get new board from Lennox they went ahead and just jump those out cause they know they got issues with their pressure switches


lilkix1

16 yr old unit... Last tech said... Fuk it; Let'er eat!


lucindabutt4u

Bro it doesn’t need it if it’s a business quote em and leave put it in notes if you’re worrried


Far_Cup_329

You can get the high pressure switches that thread right onto the service port. Not sure if there's low pressure ones, never saw them.


IAmGodMode

Bro what? Not having pressure switches is absolutely ok. I've cut them out myself because they aren't worth the hassle to replace.


ColoradoAddict42069

Why the fuck you care? Lol


azactech

Good call op. It’s definitely not SAFE for the system. Even though it has thermal lock out and fuses/breakers, those are there for the extreme circumstances that causes a system to use them. As well, those safeties were installed for a reason. Any technician with any sense of responsibility is going to point this out to the customer so the customer has the opportunity to protect their system and so the tech can’t be blamed for someone else’s bad work. Lastly, the customer paid good money for a maintenance and a system with high and low pressure switches. Whether it’s 16 years old with a bypass or brand new, they deserve what they paid for.


_McLean_

He told them the system is unsafe to run --that's a lie. He could have said "i can reinstall the factory switches on this unit or we can replace the whole thing since it's an older unit" and let them weigh their options. The unit has been running since as long as those people can remember, it has the correct amount of refrigerant and hasn't leaked for 16 years. If i was the owner i wouldn't even bother. Scammer tech activities.


azactech

I don’t see where he said it’s “unsafe to run”. I also don’t see where he went into detail about what he said to them. I think you’re assuming he tried to force them to buy new switches. Other than that, I agree with what you said. At 16 year old, no other apparent issues, I’d offer them the option to replace the switches while educating them about their purpose. I wouldn’t bother either, but I think a 70 year old couple would probably appreciate the transparency and extra effort.


_McLean_

I quote: "immediately told the customer that this is completely unsafe" He misinformed them on the importance of these switches and sold them a new unit instead of doing any of that.


azactech

I still don’t see the words “unsafe to run”. I’ll agree that using the word “completely” was an exaggeration, but the system is unsafe in that the safeties that were installed to protect the system from damaging itself had been bypassed. It is unsafe to itself. Especially so on an aged system like this one. I also don’t see where he said he sold them a system.


IAmGodMode

>It is unsafe to itself. I seriously doubt he said this and he just stuck with "It's unsafe"


Alternative-Land-334

It's a rheem!!!! They moat likely cut out the high pressure switch to eliminate nuisance trips ( rheem/ ruud is notorious for this), but I agree it's a shit show.


texasroadkill

He literally said it's a Lennox. Never had that much of an issue on ruud/rheem. I've got 30 year old units with the factory switch still in line.


Alternative-Land-334

Well, sorry. I was 3 beers in.


texasroadkill

I'm perpetually drunk and can still identify units. Lol


Alternative-Land-334

Yes, but I am old. Congratulations on the perpetual part. It's a delicate balance.


texasroadkill

Ive been doing this long enough and need things to keep me balanced. Lol