In this Kalos meeting, Bryan talks condenser fan motors, blower motors, and Motor Replacement Tips & Tricks. Read all the tech tips, take the quizzes and find our handy calculators at www.hvacrschool.com/
I’ve Been in the trade for 24yrs. Also teach others in the company in training room I do pretty good at one on one training (hands on with explanation) I use hvac school training videos to help while doing this in classroom Been a lot of help Thanks!
These resources and invaluable!! I’m a new installer. These videos are giving me a path to mastery in this trade I didn’t know existed! Thank you for your content creation! Keep them coming!!!
29:40 - My dad's uses for Channelocks: wrench, hammer, wire cutters, tin snips (for thin sheet metal), pipe bender (for small pipe), tweezers, jumper wire (e.g., to drain a capacitor or jump a starter terminal), roach clip, to name a few!
Bryan, great class! Ain’t nothing better than talking HVAC Residential Basics. These are the types topics that set the Cornerstone for a foundation of the next generation. I give you a 👍
Awesome video. These videos are good for people just getting their feet under em in the trade,as well as people who have been it for awhile. Never know when you’ll remember something you forgot.
I changed out a residential blower on Friday. Seeing the condition of the unit itself, I was quite surprised how easily the blower wheel came off the shaft.
Just wanted to say thank you very much for all your helpful RU-vid videos, and podcast, I just started my third semester in HVAC school here in Corpus Christi, TX it's real good program over here with plumbing, and dryers, washers appliances with restaurant equipment, soon they will also be including carpentry and interior & exterior maintenance, maintenance management, and all yours videos have helped me get through these semesters, once again thank you very much.
Great point about the rotation wires. I always strap them underneath with uv outdoor rated zip ties. Can’t stand when their loose hanging in the wind weighting to rub out or worse.
@@HVACS I came from Brazil 22 years ago, been graduated as technician electrician in 89, fell in love for hvac trade, thanks to you guys.... No question Naples Florida I will always have work 😁😁😁😁😁😁😁😁😁😁
Can you guys make a detailed video on line sets - specifically covering, proper sizing, pitch, oil/reverse traps, extra oil, velocities, proper positioning in reference to coil and condenser location and how to read manufacture charts with regards to interconnect tubbing
JL3RH Psychrometer can be easily corrected using a "SAL75 Tramex Calibration Salt Check." This is a must have for the JL3RH Psychrometer. Fieldpiece says to do the calibration for 24 hours, but I got mine within one tenth of a degree WB of each other, following the instructions from Tramex in 40 minutes. They were reading 4+ degrees different from each other before the calibration.
Enjoy the classes. I don’t work in the business feel like I’m missing my calling. I find this business so very interesting. Maybe was an Eskimo in a past life. Currently living in Texas for the last 20 years. Summers are too hot 🥵 for me.
We do all sorts of motors, axial fans most common, I got a crash course in maintenance of them, replace the front and rear seals, don’t over grease and put the spring washer at the same end it came from… But pump motors… where there’s a shaft between the motor and the pump, if you remove the motor, mark everything where it came from, and I’m not sure what everyone else does, but we get a third party to come in and check our shaft to motor to pump alignment is bang on, because we don’t want those kind of calls to rebuild a condensed water gear pump
I used to tie the rotation wires under the fan grill, but now I cut and strip them close to the motor then wire nut them for the correct rotation. Now they can't fall down into the blade or have the insulation dry off and shock someone/short out.
Bryan, Nice video, I would like to add a comment on air flow. You mentioned that a tech could notice something different with air speed at the return air grill. My experience is that one wouldn't know if the system has high air flow issue beforehand since he/she would be walking into a house with a bad blower motor and airflow can't be checked till you get air flow going again. That being said, one project I replaced a blower motor with an exact replacement. I then notice that the return air ducts were ridiculously small and that's what probably caused the blower motor to go bad in the first place. Needless to say, client did not want to spend the money to replace/repair the return air circuit.
Southern Utah- guilty of not pulling drain plugs on condenser fan motors... Gotta be moisture in the air to condense! 😅 Excuses aside, I need to work on that
The ICP HEILS from 2000's had supported the condenser motor with the cover that had fins that where directed at about 45 degrees. I have found by bending the metal of each fin to about half that to more perpendicular to straight up about 22 degrees, the fan noise was noticeably more quiet and less turbulent and moved more air, thus less head psi. Anyone else try that?
I have 3 meters to test capacitors. The Fieldpiece SC57 always read lower than my Fluke multi-meter and my Supco capacitor tester. Some one should make a reference capacitor so that we trust our testers.
I would be interested to know if you took each one of your techs, “privately”, one on one, and set up a test on using a multi meter how many would be very proficient in its use. I think you would be very surprised.
Can the OEM motors be ordered ? Are they available ? I understand the quick repair process that universal motors accomplish however, some jobs are not a rush such as "this motor is on it way out" and the customer wants the same part.
Hello, Great Video. Quick question. Working on a 28 year old unit and cannot obtain an exact replacement blower motor. Original motor has a 7.5 mf external cap. Planning to use a replacement motor with identical specs except... instead of 3.4 amp motor with the external cap, want to use a motor without external cap that is rated at 7.9 full load amps. EVERYTHING else matches. I understand it will be less efficient, but will it create any problems? For example, would the added max current flow be a potential issue for the control board? Planning to replace 5kcp29kk5211s (1992 Carrier system) with Century Mfr. Model # 559. Thanks again.
I work at a supply house and we generally tell people that matching amperage is more important than horse power. And if you can't match it, then you should go slightly lower than the oem. I noticed that you said go higher. Who's wrong?
We were laughing the other day when we pulled up to a job and wires were coming out the top. I’m like, no way someone left that like that. Total Amateur hour.
From a technical standpoint it makes no sense to use a aftermarket ECM because you loose all the OEM programming anyway so just go with a PSC. It is more challenging Install due to relay integration and also to match the PSC motor HP because a 1/2 or 3/4 hp Ecm May be programmed to run significantly slower than a oversized PSC motor.
I'm going to disagree. I have been using Mars Azure motors to replace out of warranty failed constant torque ECM motors for a few years now. The installation procedure puts the motor in a temporary installation program mode. Most of the time that works well. If adjustment is needed, speed taps can be changed. If more fine tuning is needed, it can be done with a handheld programmer. The end result is a more efficient and more exactly tuned air flow than is possible with a psc motor. By the time you add the cost of the relay installation the customer hasn't saved much on the ECM to PSC repair and you have lowered the performance of their system. Also how are you going to accommodate gas furnace with different heating and cooling blower speeds and all of the fan limit switch interfaces? You could use a quick swap board but then there goes all of your part savings. With the Azure line only 2 truck stock motors will replace just about every constant torque ECM blower out there. I have not used an aftermarket for a true vari spd yet. those require a greater range of truck stock.
Sorry Joe but that’s an antiquated way of thinking. The technology is there for a reason. Stop being the guy that is stuck in the past cause it’s easy. Do it right!
IN CURTAIN CIRCUMSTANCES AND CURTAIN HP’s it is better to have the motor rebuilt than to replace it. A rebuilt motor is less expensive and is rebuilt by hand has new bearings installed in a sitting that was designed for that and the motor is tested. A new motor is stamped out at a factory and may have sit on a shelf for months to years. So if you think a custom hand built motor that is tested and has a guarantee is worse than a more expensive untested motor what's wrong with you? Never buy a new motor when you can have the motor rebuilt, the rebuilt motor is superior in every way.
I disagree. How can you justify the labor cost to rebuild a disposable motor. The OEM motors are made by the same manufacturers as the universal motors. If you have bad bearings chances are there will be slop in those pot metal end bells. I run a motor repair shop and we charge $100 an hour for labor and we can sell a replacement cheaper than that.
Chad Lane you are correct for residential, sorry I was going to amend my statement. It is in industrial and some commercial applications where this applies. Obviously if it is compromised to the point it can’t hold the bearings true then it’s shot. Also I’m looking at the failure bathtub curve, a known that fails is usually better than an unknown, especially when the rebuilt known comes with a guarantee.
Really just replace bearings only reason to get new motor is if bearings are locked up and windings are burnt. Maybe do a video on how long bearings will last without lubrication.
@@chriswiles874 Usually the limit is 100hp, anything below 100hp is replaced or rebuilt whereas most everything above 100hp is rebuilt and rarely replaced.
