HVAC: Laars Commercial Boiler Nightmare (Laars Pennant Hydronic Boiler Not Working/Heating Up Water)
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- Опубликовано: 2 мар 2024
- HVAC: Laars Pennant Commercial Boiler Nightmare (Laars Pennant Hydronic Boiler Not Heating Up Water) HVAC Emergency Follow Up: Commercial Hydronic Circulating Pump Installation/Repair For LAARS Boiler / HVAC Emergency: Commercial LAARS Boiler Hydronic Circulating Pump NIGHTMARE (Boiler Pump Leak Water) HVAC (Heating, Ventilation, Air Conditioning) Emergency Service Call: Commercial Hydronic LAARS Boiler Water Pump Leaking Water (Water Pump Leak Repair) Boiler Repair / Boiler Not Working / Boiler Leaking Water / Boiler Pump Not Working / Boiler Circulator Pump Leaking Water / Boiler Circulator Pump / Boiler Circulator Pump Wiring / Boiler Circulator Pump Troubleshooting / Boiler Water Leakage / Boiler Leaking Water / Boiler Troubleshooting / Boiler Sequence Of Operation / Laars Pennant Hydronic Boiler / Pennant Commercial Boiler Or Volume Water Heater / Laars PNCH500 / Laars PNCV500
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Наука
They pressure test those pumps at the factory. That's why the new pump's impeller had rust on it.
Retired stationary engineer here . Can you just replace the broken pump coupler on the B & G pump ? You wouldn't have to open the pump volute up if thats all it needs , just unbolt the motor from the pump and change the spring coupler. Those couplers are always going bad poor design unless the pump is always on . If it cycles they don't last long.
I never seen anybody that had more guts than you do you are fearless man.
Great video man. I work in a similar industry and knew the exact pressure you were feeling lol. Sometimes you have to take a step back and realize it's not your fault if the customer doesn't take care of their equipment. All those unlabeled valves, that boiler room was a mess. Looking forward to the next update on this.
Spiralink - replace the coupler
Hearing "we're gonna have to shut down water for a 24 hour hotel" brought back memories, of us trying to redo an entire riser, on 70 floors, and every floor had 45 rooms AND every room had their own riser. Plus every riser had to get T sections for the fan coil units that were in the rooms as well.
Half the hotel was still active while we worked.
Biggest crew i've ever been on, it was 30 guys, with 10 foot stacks of various sized copper. Putting in the risers weren't too bad, we fed every one from the top and pre-connected every one as we went so we didnt run into problems.
Job went pretty smooth, but god damn you realize how greedy some of these hotels are. Job would go WAY easier if the hotel wasnt active and we'd get it done faster, but bottom line means more than getting done earlier I guess.
That 3” is the boiler water make up, Why is the bypass open, nothing labeled that’s an extremely poor boiler room! There are companies that can freeze the pipe so the valve could be replaced without taking the system down? Something to look into for future repairs as it looks like your the new maintenance man!
10:51 I was just about to mention that bypass.
Love the channel, but I think you could have just replaced the coupler. There’s an allen key that just gets loosened.
The harder the job , the better you and your helper do ... Nice work ... Thx
No need to replace the complete pump. All that is needed is the spring coupler between bearing assembly and motor and then you would not have to drain. And the pump you picked up may not even be the proper GPM as those are normally designed for the application.
Lol this guy is a parts changer , you are right he should've replaced the coupling.
That's usually what's needed but I have seen the pump be locked down and that's what will break the coupler. It probably wasn't a bad idea to put a new one in, especially if it had a lot of run time on it or proper maintenance or water treatment hasn't been done.
That is the typical case, but this one the pump was subjected to both misalignment and overload from the valve being almost shut off. Likely the pump head shaft bearing failed and caused the coupler to fail. They are designed to do that to prevent the motor from going up in flames.❤
What I’ve learned is the most convenient and cost effective way is do replace the complete bearings assembly. Come with seal kit, bearings housing and coupler…and gasket….
🤠
I retired 4 years ago from 35 years of HVAC . I remember service call in the middle of the night. Those are the ones that became all nights . . Good job and gets some sleep
Interesting subject and well explained. Great job JMT. You nailed it. It was a helpful and interesting video.
Great Video. Thank you for sharing. Good Job and Nice Work. This is a big job. and It is nightmare.
Loosen valve packing nut and you may find valve may move. Challenging jobs, loved those. Nice vid.
Great job to you and your helper JMT with that pump definitely a nightmare!
I always enjoy these videos 🔥
couldn't fine a pump coupling?
Great job again sir
Good job Jumper, I knew you'd get it done, let us know what happens.
When you said it was done, i knew you were a pro
Dude, you really do find some sh*t, don't you!? Great job! Are those stress factures in the pipes? Let us know what you find out. Thanks for the video, bro!
Good job,don’t envy you working in NYC.
Just replace the spring couple and motor mounts and you are good unless the bearing assembly is seized
Enjoyed watching from calif
Man those job love you all these work come at like butter 😂
this is my day every single day in this trade and i love it lol. keeps me going ;)
You are a HERO.
Excellent video very interesting and as if i was their 💯💯💯💯👍👍👍👍👍
You always get the nightmare calls! 😅
This one really had the pucker factor. 😮😮😮
You don’t need to replace the pump…just replace the spring clutch assembly on that pump assembly and make sure that valve is fully opened. Your good to go until a proper replacement of the boiler can be arranged
I am not in this field but it was me I would of replaced them two valves not just the one, before doing anything else. Then work on that unit as the other boilers can stay on. Good work keep it up!
Why was the bypass open on the 3" ? , was the pressure regulator U/S "
i know what you are going through. similar thoughts, pump wouldnt come free, had to pry it off and break it free. eventually it popped off and we got the new pump in and replaced the whole bearing assembly.
😢Feel for you brothers good job nightmare !
You could get a flex coupler and fix the old pump if the bearings are ok. They do wear out eventually. In this case you made the right call for replacement over repair as the original was subjected to fairly severe abuse that made the flex coupler fail.❤
Yeah, I’ve had one rip before those gaskets are pretty flimsy a lot of times I’ll ask for an extra one if they have them sometimes they do sometimes I don’t you think they’d be a little more durable
This video gave me so much damn anxiety, whoa man
A little knowledge is a dangerous thing!
Always enjoy the videos! That place is a shit show. They do little or no maintenance and then the dominoes fall when repairs are needed. Are all the buildings in NYC this poorly maintained? If so, you’re gonna be a millionaire by the time you’re 30. Keep making them and I’ll keep watching! Be safe out there.
Looking forward to the follow up video but man all the equipment has been neglected for a long time, job security for you guys I guess lol
Hello from France, can't you freeze the pipe ? We're used to do this here in these kind of situations.
Great job Jumper Man.
It also seemed like the tube bundle was leaking. Might want to replace that as well..
I understand using pro press in a pinch or emergency repair but this was a solder joint seriously just sweat old valve out and either replaced with proper valve or pro press blank till like Monday when you can get proper valve
9:45 there will be announcements by the super for the water shutoff?
What I’ve learned is the most convenient and cost effective way is do replace the complete bearings assembly. Come with seal kit, bearings housing and coupler…and gasket….
Hey man, when replacing valves, if you had to chose between only installing new gate valves or only installing new ball valves, what would you chose?
Ball valves less likely to leak, but sometimes get seized in a single position.
Ball valves are superior overall, but they are bigger and often more expensive. When space is a consideration, Gate valves are better
As a rule balll valves are my favorite because they shut off at two points, gate valves only one point internally. Gate valves are cheaper, though. Really depends on the use case.
what do you mean by you do everything DIY?
It looks like the impeller broke off the shaft. That broken coupler spins to freely for that size pump. And why use 2 coupling when you could have just put the valve on the pipe then tie it back into the other pipe with one coupling. Less change for leaks. But then it nice to sit on my couch and be the Quarterback. Great job
didn't look like enough slack.
The flow switch should've prevented the boiler from coming on because there's no flow. That is called the primary pump not just the pump.
In Vancouver, bc Canada, we have soooo many more plumbers, HVAC and heating guys are like that, they keep changing replacement parts until they can find the problem because they don't have any experience, expertise or skills. They are exactly parts changers!!!!!!!!!!😢😢😮😅😢
You should’ve stocked a few spare valves in a good assortment of sizes. Sometimes Home Depot is a good option.
Great job JMT
JMT - I've been watching lots of your videos and the question I have is - why do you say 'we do everything diy?' You are obviously a professional and seem to be damn good at what you do...are you not certified with the brands you service? Not knocking you - just genuinely curious
Hey, great question. Thank you for the compliment 🙏 I am a HVAC/R professional and fully certified to perform the work that I do. The reason I mention "DIY" is because I have many videos on my channel where I've done DIY projects such as installing LED lights in various applications, small construction jobs and even build computers from scratch. Thank you for watching! 🔧⚡️
Couldn't you freeze the pipe?
Omg 😮
Does nobody solder anymore?
A lot of guys do, and a lot of guys don't. Although I do understand when pressing is needed. Jumperman did a video where there was so little access to the pipes due to the order they were installed that the only way to make a repair without repiping everything was with press fittings. I think in situations like this it is also fine to press (under time pressure and in a non-ventilated space; possibly the only 2" valve they had on hand). But I agree soldering is the gold standard. The press fittings aren't any less reliable, but they make repairs more difficult and cost more.
I don't like seeing press fittings on easily accessible pipes in residential, that's just being lazy and racking up a big bill for the customer. I see guys do a garden hose replacement and do like 20 presses and it just seems ridiculous and non-servicable.
Wow that there is a Chit Show my friend.
I would of replaced the whole header and gasket in the first place. Especially how you found it leaking the day before.
why bypass is open ?
25:13 judicious use of a 🔨 gently. Been there before. Use RTV to seal the new one on.
Can’t believe this call 😂 one thing after another
Those ripples marks are extrusion defects when the fitting was made
a professional under stress -- got it done ...
That pump will come off of that volute. It's just stuck. You will have to force. But you know that by now i suspect.
Bruv thats why you gotta out in a “nightmare job tax” on the quotes especially for these poorly maintained plant room equipment! Its a can of worms half the time. I always have a clause in our quotes basically telling the customer your paying extra if we uncover more issues
Need some vice grips
Exactly. Vice grips would have turned that valve without chewing it up more
NYC 😂everything looks like a nightmare
What I don't get about such places - if a night in those rooms is that expensive, which beat-down equipment they rely on. That's a disaster just waiting to happen and sooner or later it *will* happen.
If there so much riding on these boilers why is there no redundancy.
😻💚💜💚
That place is a hot mess!!
What the heck does dude say in the intro? Whatever he says about DIY I just can't figure it out.
i love how american plant rooms look like they're in the 1940s
including the friable asbestos pipe lagging
Man what a rats nest of pipe. I feel like that building had gone through several different boilers to have that screwed up of a pipe layout. The fact that they had the bypass open with the pressure regulator open probably says that the regulator is trashed too.
All these building owners just don't wanna do maintenance and then complain when everything is broken and complain and beat up on technicians doing whatever bubblegum fix they can to make it keep working because they don't want to pay to fix it properly. That bypass shouldn't even be open - so either their new boilers outflow the reg, or the reg is trash. Honestly not surprised that the pumps are the way they are. I mean looks like there's even a storage tank that's AIP'd in there for probably rotting out.
It's just so typical man. Can't stand it. You got these big name places reporting record profits, raising prices to consumers, but their buildings and equipment are held together with chewing gum and a prayer and a massive safety/health hazard...
That bypassed pressure regulator is sus. Could’ve caused that whole leak situation too.
even if you change the pump you will still have a leak from the front :(
Motor mounts shot
Just change the impeller
Coupling
Man, hold on..... i see you in trouble... but Dont panic and think out of the box. If you cant flip that valve in off position you have only one thing to do: Those pipes are copper just cut the pipe, pinch it with pliers and braze it, Thats gonna hold till you sort out another pump problem! You can thanks me later... and please get your self socket set if you wanna play with this big boys!!!
The dude is not posting this in real time, he's long gone from that problem.
yeah i know that.... just giving him some last hope options....@@chuckd5819
Nah why spend time brazing and cutting if you just need to go back, circuit is offline anyways, best to do it all at one go when your not exhausted but yeah definitely would work in a pinch
well my answer were just in case in the midle of the night and no spare valve and couplings in the van. But anyway he did the right thing@@thetheorizxr
Fucking nightmare 😂😂 quote them for a new unit 💀💀
Why didn't you just rebuild the clutch? Would have been simpler and cheaper for the customer...
You did a lot of work for nothing. All you had to do was replace the coupler. At most replace just the bearing assembly. You are costing your customer a lot of money that they don't need to spend.
Remove set screw on motor to impellor shaft
What you should have done first is change that broken valve that way you could isolate the boiler and not have to shut down the entire building of water. Then work on the boiler. That’s just me though.
We had to shut down the main water supply to everything in order to change the valve in order to isolate that one boiler. Thanks for watching! 🔧⚡️
@@JumpermanTech I know you should have done that first the valve then with the boiler isolated you could have come back later to do the pump. You found the broken valve and just ignored it and went on to do the pump and made it a little harder on yourself.