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Subcool HVAC
United States
Приєднався 29 гру 2013
Welcome to the channel, I Started the channel to share my HVACR Service experiences. At 34yrs and counting in the trade with State Contractor License, there’s a mix of Commercial and Residential troubleshooting service work . Thanks for Watching Subcool HVAC!
York YMC2 MBC Excessive Shutdown Alarm… Chiller 2 Not Running… High Water Temperature
Got a work order for York YMC2 chiller not running… Excessive Shutdown V13 MBC #hvac #chiller
Переглядів: 482
Відео
Chiller In Alarm …Trane CGAM Chiller Comm Loss Faults .. Discharge Temp and EXV
Переглядів 1,5 тис.21 день тому
Got a work order for chiller down affecting an auditorium, not able to reset.. here’s what I found #hvac #chiller #airconditioning
Carrier RTU 8.5 Ton Not Turning On Affecting The Weight Room… It’s Getting Hot
Переглядів 7 тис.28 днів тому
Got a work order for AC down in the mini gym weight room, temperature rising and not turning on #hvac #airconditioning #carrier
14yr Old 5 Ton Ruud Iced Up || Customer Prefers To Repair If Possible … Let’s Check It Out..
Переглядів 10 тис.Місяць тому
Referred customer interested in second opinion to repair 14yr old Ruud 5 ton system that iced up #airconditioner #hvac #airconditioning #hvacrepair
NAVAC 18v 2 CFM Cordless Pump …HERCULES 20v 2CFM Brushless HVAC Vacuum Pump Comparison
Переглядів 7 тис.Місяць тому
Trying out the Hercules HVAC 2cfm vacuum pump that I picked up at HARBOR FREIGHT… is it worth the money and how did it compare to my NAVAC 2cfm #hvac #harborfreight #navac
Air Handler Blowing Warm Air And Trane RTHD Chiller Leak … Yep That’s Oil
Переглядів 3,9 тис.2 місяці тому
Got a work order for a building warm and found one Trane chiller has developed a leak at 2 yrs old #trane #chiller #hvac
York YMC2 Service Needed || That Doesn’t Sound Good
Переглядів 2,8 тис.2 місяці тому
Met up with JCI tech to service our YMC2 chillers that have been surging and Loss of Subcooler Liquid Seal warning resolved #york #chiller #hvac
Condenser Pump And Motor Install With Some York YMC2 Surging Issues
Переглядів 4 тис.2 місяці тому
30hp condenser motor and pump reinstalled for our York YMC2 chillers and now Chiller 1 is starting to surge… #hvac #york #chiller #controller
TRANE Stealth Chiller Circuit 1 AFD 1A Bus Under Volts | Part 2 Results Are In ⚡️🦎
Переглядів 3,1 тис.3 місяці тому
Follow up on Trane RTAE that blew 200amp AFD fuses from what appeared to be just a lizard shorting the phase… here’s the results #hvac #trane #hvacrepair #chiller
TRANE RTAE 150 Air Cooled Chiller Circuit 1 AFD 1A Bus Under Voltage Alarm Not Resetting…Part 1
Переглядів 5 тис.3 місяці тому
Received a work order to repair a Trane RTAE 150 not resetting and in Alarm for circuit 1 … here’s what I found #hvac #trane #airconditioning #chiller
York Ymc2 Chillers Shutdown Shortly After Scheduled Start Time… Tripped Main.. No Display VFD
Переглядів 16 тис.3 місяці тому
Was contacted early in the morning prior to shift start by a coworker that the chillers abruptly stopped after starting, no pumps or chillers running, no display on vfd’s and a main breaker tripped…Priority work order generated and Here’s how we responded #chiller #york #hvac
Cooling Tower Overflowing Follow Up Work Order | I Should’ve Check This
Переглядів 35 тис.3 місяці тому
Going back to figure out cooling tower 1 water overflowing during shutdown #hvac #coolingtower #chiller
TRANE RTHD’s Had Trouble Restarting After Power Outage | EMS Override!
Переглядів 8 тис.3 місяці тому
Got a work order stating chillers not starting up , had to troubleshoot where the night crew left off #chiller #hvac #airconditioning
Troubleshooting High Coil Temp Reading | York Chilled Water Air Handler
Переглядів 3 тис.3 місяці тому
Got a work order to repair/replace high coil temperature thermistor and end up finding more issues. #airconditioning #hvac #chiller #temperature
Building A Signal Generator With Parts In The Garage
Переглядів 6573 місяці тому
I decided to build my own signal generator and put those little Dewalt batteries to good use #hvac #signalgenerator #dewalt #garage a.co/d/cmmTZeQ a.co/d/2SNGgWV a.co/d/aip1wou
Air Handler Blowing Warm Repair … EMS Reload And Chiller Down .. What Else Can Go Wrong?
Переглядів 2,7 тис.3 місяці тому
Air Handler Blowing Warm Repair … EMS Reload And Chiller Down .. What Else Can Go Wrong?
Trane Climate Changer AHU Making A Lot of Noise…Old Still Works
Переглядів 2,8 тис.4 місяці тому
Trane Climate Changer AHU Making A Lot of Noise…Old Still Works
30 HP Secondary Chiller Pump Motor Replacement.. Chiller Plant
Переглядів 2,9 тис.4 місяці тому
30 HP Secondary Chiller Pump Motor Replacement.. Chiller Plant
The Gym AC Not Working.. Old Toshiba Q9 Speed Drive Overheat Fault.. Need More Info
Переглядів 4,9 тис.4 місяці тому
The Gym AC Not Working.. Old Toshiba Q9 Speed Drive Overheat Fault.. Need More Info
Chiller Cooling Tower Wants Attention .. Pump Power And Small Temp Difference
Переглядів 6 тис.4 місяці тому
Chiller Cooling Tower Wants Attention .. Pump Power And Small Temp Difference
Chiller Pump Strainer Pull And Clean HVAC Maintenance… New Tool
Переглядів 3,8 тис.4 місяці тому
Chiller Pump Strainer Pull And Clean HVAC Maintenance… New Tool
Leaking TACO Condenser Chiller Pump Removal And Breakdown
Переглядів 5 тис.4 місяці тому
Leaking TACO Condenser Chiller Pump Removal And Breakdown
10 Ton Carrier RTU Intermittent Cooling… Almost A Call Back. Good Thing I Waited
Переглядів 6 тис.4 місяці тому
10 Ton Carrier RTU Intermittent Cooling… Almost A Call Back. Good Thing I Waited
TRANE RTHD Loss Of Oil Alarm… RTHC No Evap Flow … Both Chillers Not Working Call
Переглядів 6 тис.5 місяців тому
TRANE RTHD Loss Of Oil Alarm… RTHC No Evap Flow … Both Chillers Not Working Call
York Chilled Water Air Handler Too Cold …… Rooms Are Freezing
Переглядів 5 тис.5 місяців тому
York Chilled Water Air Handler Too Cold …… Rooms Are Freezing
No Chillers Running And Burning Smell … A60 External Interlock Drive Alarm Issue
Переглядів 35 тис.5 місяців тому
No Chillers Running And Burning Smell … A60 External Interlock Drive Alarm Issue
Loss Of Charge TRANE CHILLER CGAM070F … Leaks or Something Else
Переглядів 3,2 тис.5 місяців тому
Loss Of Charge TRANE CHILLER CGAM070F … Leaks or Something Else
York Centrifugal Fan Blower Replacement… The End
Переглядів 1,4 тис.5 місяців тому
York Centrifugal Fan Blower Replacement… The End
Install And Setup Motor Saver 455….Simple Solution
Переглядів 1,3 тис.5 місяців тому
Install And Setup Motor Saver 455….Simple Solution
Chiller 2 Down After Blown Pump Motor || Found The Source
Переглядів 6 тис.5 місяців тому
Chiller 2 Down After Blown Pump Motor || Found The Source
Are these available for belt driven blower? Mine is not working properly
I’ve only used on direct drive
Chillers are so neat
Especially when they work 👍
Did he say anything about being bought by Bosch?
No, just discussed how expensive the replacement parts were. I did hear that Bosch bought the Johnson Controls service.
@@subcoolHVACl yes l think it’s the residential side l don’t think it was commercial side.
Great experience.Thank you.
Thanks for watching!
Good learning curve
Always something to learn 👍
How is it possible to find if & where the leak is if it’s all covered in wet condensation to begin with? Seriously?
Oil stains are a good indicator, a good leak detector, and lots of patience 🙂
To be fair, I used to flip the sticker around just to be a jerk, in a previous life.
I think I found a few 🤣
Great video. Thank you for sharing
Thanks for watching!
Great video. Thank you for sharing
Thanks for watching 👍
Nice job
Thanks!
Did you end up doing the other side too?
Sure did 👍
@@subcoolHVAC I got an engineered air pillow block to change and I quoted 6hrs for both sides 😩 a part of me regrets it big time
Well the goal is set, you’ll get it done 💪
It's a nice little pump. I got the 12ah battery for mine.
Nice, that will definitely do the job 👍
Los of oil at compresor, do You know what is the cause?
Here it was oil had migrated to condenser with low ambient conditions
Great job brother. Love the videos.
Thanks Joshua!!
Ahh that tinnie rattle noise of an empty TXV blub.
great video!
Thanks for watching CC 👍
Great tech work
Thanks Victor 👊
Too many white shirt companies never would have attempted to do this repair. There all about the up sale. Nice repair
Agreed, Most customers would rather repair if it makes $ sense. Thanks for the comment 👍
Looks like AMP super seal connector
Yep, with Trane price tag 😎
Nice work Subcool.
Thanks Steven 👊
You know what they say... It's hard to start a Trane. Or something like that. Thanks for the video, always a good watch.
Lol, you know it 😎
Handled that problem like a boss....and on to the next one.
Thanks Jason, ckt 1 better not act up now 🤣👊
Good stuff, thanks, Subcool!
Thanks Steve, I left it better than I found it 😁
What was the cost of fixing the unit?
About 1/5 the cost to replace
WTF is that thing? A Submarine torpedo launch tube?
Close, it’s a water chiller for HVAC 😁
Great video
Thanks Jason 😎
Those Carriers are junk!
Willis wouldn’t be proud 🥲
Why not install the copper first and set it to vacuum to win time while its vacuuming you finish the rest great job
I just work from top to bottom so I can focus on test/vacuum at the end. Thanks for watching
Not really an hvac tech myself but mostly working on building automation projects yet I also do some service calls from a distance from my office to figure out what is going on. Fishing for information when dealing with problems is always a fun game. Steps I undertake: -Open the BMS and if there are GUIs created for the sector, open them and do a quick scan on the rooms of the building. Afterwards, narrow down the issue. Usually, i have dealt with lack of cooling on hot summer days, as opposed to the lack of heating during winter, for some reasons. Most of times they were RTUs feeding cool air to VAV damper boxes. The first thing I always notice is that all rooms fed by the same system are at least 2-3 °C above their setpoint (usually around 21-22°C), even if the customer tells you only a few are problematic (ex: 27°C, which is really hot). Either they genuinely had a mechanical problem that needed to be fixed, or sometimes it's just a case of undersized unit. If you see that the unit fails to maintain duct static pressure even when the fan is at 100% speed (because the room controls are all at maximum cooling demand and therefore, maximum airflow) or if all compressors are on and recently maintained but the air is still above 20°C, you can tell right away that the unit is undersized for the building's requirements. Sometimes I stumble upon autonomous units integrated on the BMS's BACnet network that generally give a lot of info, sometime I stumble across ones where we put our electronics on to control them and the equipments have feedbacks for a bunch of stuff (ex a current transducer on the power lines of the blower, compressor, etc...), and sometimes no feedbacks on the real state of equipments, mostly older installations. I have limited skills when it comes to troubleshooting machines physically, but whenever I can, I go fish for info for my colleagues who might be dispatched there.
Thanks for commenting, hopefully you found this call interesting
Good job 👍
Thanks 👍
Nice jop man
Thanks for watching!
Motor 3 hp
Yes , that’s what we installed
Waiting on a vfd now for a carrier
😔we do a lot of waiting
Have have some really good content, u should consider gettin a tripod to show yr work/installations, I think that would be cool to see. Keep up the cool videos
Thanks, the tripod would slow me down, I just try to film as I go and get the repair done as efficiently as possible. I appreciate your input 👍
@subcoolHVAC yea I understand
Don’t you love where the vfd is mounted. F carrier!!
It’s genius 🤣
@@robmcshane3260 right in the airstream with all the moisture
You know it 👍
Nice troubleshooting and video Subcool.
Thanks Steven !!
Just enough information so you can out source the motor
Yep, motor volts/amps and frame 👍
Carrier does have a service/tech bulletin on how to wire around the VFD. This unit appears to be cool only so low voltage control wiring you did should be okay. However, there is already a signal wire in the unit for this purpose, well it is there if there was no VFD. Also, I did not see that the wires ran through the fuses that are in the blower compartment. Maybe it is different on 460VAC, I don't think I have worked on anything over 240VAC that I bypassed the VFD on. The fuses are supposed to still be used but need to be changed to a different type. I usually run the yellow wires that are on the capacitor for the condenser fan motor directly to the contactor instead of to the capacitor. Just my OCD/thing to do.
I didn’t see fuses for the blower , the cfm relay is the weak link to the motors , the yellow motor leads remain energized through the cap common. They already have enough wires shoved into undersized contactors as it is 😂 Thanks for commenting
@@subcoolHVAC I run the yellows to the same side of the contactor as the common/yellow wire to capacitor is run from. If there is too much on there, they are not long enough or it is just easier then they stay on the capacitor. As for the fuses,, there is a block for them just above the VFD, at least on the units I have worked on. Again, maybe different on the higher voltage equipment.
I have a site with 32 carriers all 25 tons from 2020. We call it the Covid building. Numerous issues from factory that I caught on start up. Watch out for those insulated terminals for the drive. I had a few burn out on me this spring
Oh man, good to know . Thanks Marcos 👍
A bypassed VFD on a carrier? No way! I swear their VFD quality is terrible past few years
Lol, I guess 1 out of 6 isn’t too bad 😂
Hi, i am a new subscriber nice trobleshooting, the wire was crisp
Welcome to the channel 👍 yep, it was a little over cooked !
Looks like the sheaves opened up and motor over amped
Set screw was loose but didn’t look like it spun, I was thinking loose wire nut at motor possibly. 🤔
Great video! (as always)
Thanks CC 👍
Is that blue guy A2L compliant? I'm sure the Navac is because I just purchased it
I haven’t seen A2L compliant in writing on the Hercules but it has the features to be, DC Brushless motor, spark proof switch. Would need to verify with mfg. Thanks for asking!
Great job that surprised at they didn’t know chiller were off whole week or having problems l operate a #2 YK York 800 ton chiller we have alarm when chiller go off on an warning or any chiller pump and cooling pumps or any other problems we have the in the utility plant l guess that they doing a big project hated when they upgrade and the cause a problem due to the construction.
Yeah EMS doesn’t have alarms enabled at these sites during unoccupied or occupied times, building maintenance has to check physically… Thanks for commenting 👍
They're not the most powerful but the convenience of doing automatic ac jobs out in the field makes it priceless to me. No need for a generator, a converter or extension cord. I bought the 12ah battery so I'm curious how many cars i can do off it.
Nice, keep me posted how it does with 12ah. 👍
Only a good tech can make a repair. Any hack can take good equipment and through it in the junk . Those Rheem,Rudd, Weather Kings were good equipment .
The previous company only wanted to replace 😎
What was the subcooling before you added refrigerant? Nice work
Nice video, why didn't you diode test the 6 diodes in that bridge rectifier? A lizard alone wouldn't blow them high current relatively low voltages compared to thousands of volts lines. More than likely IGBTs are blown or the full wave bridge rectifier.
It was just the lizard, see part 2. Thanks for commenting 👍
Who wants to to put in a new 5 ton every 10-15 years for $18k
You could spend that much but not for a comparable replacement to this one . Thanks for watching!
They may save money now, but the unit being that old, they will be paying a lot more in the long run due to it being less efficient and more leaks are likely to show up again before long.
Ultimately customers decision