Sorry Jim, but the piping with the P' Trap was correct. If you run the suction pipe from the evaporator directly down to the compressor you will destroy the compressor very quickly. When the compressor stops running, all the refrigerant will drain out of the evaporator and all end up in the compressor below. Liquid refrigerant being lighter than oil will stay at the bottom of the compressor. Next time the compressor starts it will have refrigerant going through the bearings instead of oil, eventually the compressor will seize. Always have the suction pipe run out of the room at up at least mid point of the evaporator to avoid this liquid migration.
Most Heatcraft condenser units have the defrost timer included behind the electrical service cover. Defrost timers inside the cooler tend to corrode and cause erotic problems. In the restaurant industry there is also a lot of acid in their coolers from Vegetables. Including citric acid (found in tomatoes, cayenne peppers and even lettuce), oxalic acid and benzoic acid. Pinhole coil failure will also occur with this. I realize this is just a beverage cooler and the customer doesn't want soggy cardboard boxes as the bottom falls out when you lift them. On another note, I'm still not 100% on adjusting the TXV without knowing superheat and subcooling, but an experienced tech will be close just by the feel of the refrigerant lines. This is an excellent video and Jim does a great job explaining this repair, the oil trap not needed, and the condenser unit installed backwards. Exposed cooling fins are also subject to hail storms or just daily vendor delivery's bumping into it and laying the fins down restricting air flow.
The condensing unit needs turning round 💯 as the hot air is not going to escape any where Plus its hard to work on as its been fitted backwards 🤠 Fitted by cow bows 🤯😂😂😂
those puncture terminals are pretty nice. i used to use them occasionally for automotive. never used em for AC voltage before, but they do make the job alot easier. for low voltages i trusted em, not sure about the higher voltages, seems like they dont make alot of contact with the wires when connected. id think resistance might be an issue.......
jeff leonard plus i see what you meant the other day on my post where you said that fan blade was a refrigeration blade so the hub was on the opposite side. i see that the hub is facing out of the unit and on air conditioning condensers the hub faces down into the unit.
We think alike on those screwdrivers, those are so much lighter weight that the rubber cushion grip models. What came to mind about the new motor is that it really has a higher power factor with the run cap., not just a lower amp draw.
+Michael Ryan Are you familiar with power factor? (Motors being inductors, cause current to lag voltage in the AC sine wave, which translates to a higher current draw for the same work output. Capacitors have the opposite effect, and can help achieve near-unity. There are some exceptions, such as synchronous motors.)
The Klein pliers look nice Jim. If that spring tension holds up they should last a long time. I think I'll try a pair.Klein I believe still makes tools here in the U.S. First Chicago, now I think they are in Texas. I think I want to try those "in line" stake on terminals. Great video!
50 bucks for these two tools seems a bit high, but was shopping for a new car battery today and was surprised to see prices doubled comparing what i paid last time about 6-7 years ago, must be an annual 2-3% Inflation lol. Thanks for the video keep em coming
its a PSC or Permanent Split Capacitor motor as the old motor that draws more than two amps its a no brainer its a Shaded Pole type motor as some of these motors have the Bohn and Larkin plugs as others they have multiple wires to wire it to either 115 or 208-230 volts as i put one of these type of motors in my Vornado 723 full size air circulator and lucklly the run capacitor clears the inlet air accellerator but i had to drill out the short studs and put in longer 8.32 screws so it worked for this Vornado application and wired it to a Variable speed Triac control and it works the motor i used is a US Motors 9662. As i highly recommend PSC motors in commercial refrigeration and if you have Vornado or an older box fan u want to go with an energy efficient motor. as some of these motors willeither have sleeve or sealed ball bearings it depends on what motor you buy.
You can find those female splice connectors at auto parts stores, I think I got mine at Oreilly's or Auto Zone, used alot in car stereo/alarm installs.
Jim, Have you tried any of the replacement ECM motors for this type / size / application? I have tried a few that have bearings lubed for low temp applications. They usually are multi-voltage, and usually you would only have to select the correct rotation. I believe the mounting holes were even the same. The ECM style uses even less wattage than the PSC type, which you were commenting about how much less wattage that type uses. Since refrigeration evap. fans run continously, the energy savings add up quickly, and hence pay-back in a reasonable amount of time. Since you stated the evaps were used, it may be a selling and saving point for the owner, to suggest you change out all the motors to the energy saving type. Some utility companies will even give the customer a "rebate" for making those changes to energy saving motors, decreasing the payback time even sooner!
You don't really want those splice connectors. They can be more trouble than they're worth since they can also damage the conductor. They also suck when they for some reason miss the conductor all together making you have to do it over again.
Jim, I've been doing commercial refer now about 3-4 yrs. Started with commercial refer and then did market for a couple years and know I'm back to commercial. You mentioned the TD was too low and you adjusted it, how? Did you adjusted your valve and increase the super heat a bit?
Hey with these videos, when you think you lost a tool, you can review them when you find them missing retracing your steps.. Have you done that before?
jim i been working on residential ac for 18 yrs just started to troubleshoot refrigeration and wanted to a ask if you got any videos of a walking cooler with a leaking liquid line solenoid
Hi Jim!! Really appreciate the videos!!! Question, we replaced an evap fan motor in our walk in freezer and the motor spins considerably slower than the original... It seems like its being sucked in from the draft of the other fan motor.. The only thing I can think of is that it's the wrong wattage(replaced with a 9W motor, only thing we had in stock)... The original has no data as far as wattage.. Is there a standard wattage that these fan motors should be??? I want to buy some to have in stock and replace the motor in question... Any information would be greatly appreciated!!! Thanks and keep up the good work with the vids!!!
its kind of hard to install those fans backwards. the set screw is in the front of the blade the way it should be pushing the air out. Don't know why someone would go through the trouble of going behind the fan blade to tighten down the set screw but there's all kinds of dummies out there.
Nice video Jim. Question for you (or anyone who can help) .. I have a friend who owns a deli and my commercial refrigeration experience is limited, but he was told by the last technician that one of the fans was supposed to blow backwards through the evap coil? Does this sound right or should they all blow the same direction? It's an old Larkin. Thanks
![[FULL EP.16] เซียนพาลุย "เผือก-ฟรอยด์" กรี๊ดลั่น จนปูหนี | เฮ็ดอย่างเซียนหรั่ง | One Playground](http://i.ytimg.com/vi/FsqUvwS3b-Y/mqdefault.jpg)
Sorry Jim, but the piping with the P' Trap was correct. If you run the suction pipe from the evaporator directly down to the compressor you will destroy the compressor very quickly. When the compressor stops running, all the refrigerant will drain out of the evaporator and all end up in the compressor below. Liquid refrigerant being lighter than oil will stay at the bottom of the compressor. Next time the compressor starts it will have refrigerant going through the bearings instead of oil, eventually the compressor will seize. Always have the suction pipe run out of the room at up at least mid point of the evaporator to avoid this liquid migration.
Most Heatcraft condenser units have the defrost timer included behind the electrical service cover. Defrost timers inside the cooler tend to corrode and cause erotic problems. In the restaurant industry there is also a lot of acid in their coolers from Vegetables. Including citric acid (found in tomatoes, cayenne peppers and even lettuce), oxalic acid and benzoic acid. Pinhole coil failure will also occur with this. I realize this is just a beverage cooler and the customer doesn't want soggy cardboard boxes as the bottom falls out when you lift them. On another note, I'm still not 100% on adjusting the TXV without knowing superheat and subcooling, but an experienced tech will be close just by the feel of the refrigerant lines. This is an excellent video and Jim does a great job explaining this repair, the oil trap not needed, and the condenser unit installed backwards. Exposed cooling fins are also subject to hail storms or just daily vendor delivery's bumping into it and laying the fins down restricting air flow.
The condensing unit needs turning round 💯 as the hot air is not going to escape any where
Plus its hard to work on as its been fitted backwards 🤠
Fitted by cow bows 🤯😂😂😂
One fine job Jim. Great tips and good for you to warn the owners of the black mold.
***** thanks
Great job.you are my refrigeration hero!!!
Eagle Mech Services Hvac/Refrigeration thanks
So much quality on you Jim, thank you!!!
great video, it's great to see someone take pride in their work. I enjoy the tips.
thanks for the tips good video could you show what u have in tool bag that you use
james rook OK
Nice vid. I like when you talk about the Pro tips like when you see your breath you need higher TD .
Enjoyed that one Jim.
rasta1kikker thanks
Nice job Jim
Harry Dickson thanks
I like my tools with different colors like you do Jim
those puncture terminals are pretty nice. i used to use them occasionally for automotive. never used em for AC voltage before, but they do make the job alot easier. for low voltages i trusted em, not sure about the higher voltages, seems like they dont make alot of contact with the wires when connected. id think resistance might be an issue.......
jeff leonard plus i see what you meant the other day on my post where you said that fan blade was a refrigeration blade so the hub was on the opposite side. i see that the hub is facing out of the unit and on air conditioning condensers the hub faces down into the unit.
jeff leonard those hubs can go either way, you just have to check the blade cup. thanks
Great video Jim.
Charles
hannarye thanks
We think alike on those screwdrivers, those are so much lighter weight that the rubber cushion grip models.
What came to mind about the new motor is that it really has a higher power factor with the run cap., not just a lower amp draw.
can you elaborate on the higher power factor?
+Michael Ryan Are you familiar with power factor? (Motors being inductors, cause current to lag voltage in the AC sine wave, which translates to a higher current draw for the same work output. Capacitors have the opposite effect, and can help achieve near-unity. There are some exceptions, such as synchronous motors.)
Dwight Bennett
is the lower amp draw a result of higher power factor?
+Michael Ryan Right
another great video Jim,Thanks
bradley morey thanks
The Klein pliers look nice Jim. If that spring tension holds up they should last a long time. I think I'll try a pair.Klein I believe still makes tools here in the U.S. First Chicago, now I think they are in Texas. I think I want to try those "in line" stake on terminals. Great video!
Steve Wood thanks
you can get those female wire taps at the auto parts store. they can be handy for low current draw applications. enjoyed the video jim!
awsom70 thanks
Nice work Jim.
Jon Hexom thanks
22:22
50 bucks for these two tools seems a bit high, but was shopping for a new car battery today and was surprised to see prices doubled comparing what i paid last time about 6-7 years ago, must be an annual 2-3% Inflation lol.
Thanks for the video keep em coming
Dennis Noone thanks
its a PSC or Permanent Split Capacitor motor as the old motor that draws more than two amps its a no brainer its a Shaded Pole type motor as some of these motors have the Bohn and Larkin plugs as others they have multiple wires to wire it to either 115 or 208-230 volts as i put one of these type of motors in my Vornado 723 full size air circulator and lucklly the run capacitor clears the inlet air accellerator but i had to drill out the short studs and put in longer 8.32 screws so it worked for this Vornado application and wired it to a Variable speed Triac control and it works the motor i used is a US Motors 9662. As i highly recommend PSC motors in commercial refrigeration and if you have Vornado or an older box fan u want to go with an energy efficient motor. as some of these motors willeither have sleeve or sealed ball bearings it depends on what motor you buy.
I was just glad it was the right color and it fit in.
You can find those female splice connectors at auto parts stores, I think I got mine at Oreilly's or Auto Zone, used alot in car stereo/alarm installs.
muniznick thanks
Great work
Do evaporator fans work non-stop in the walk in cooler?
Great vid Jim.....the new motor mounting screws are 8-32. I found out the hard way. lol
Ya i have pair of them klein needle nose strippers and man they work great... you'll like them.
"A little price"
Bob Parrott thanks
Job well done jim
hardcooling thanks
thanks for the video.
I wanna see more videos man!
super job!!!
Thanks for sharing
Jim,
Have you tried any of the replacement ECM motors for this type / size / application? I have tried a few that have bearings lubed for low temp applications. They usually are multi-voltage, and usually you would only have to select the correct rotation. I believe the mounting holes were even the same.
The ECM style uses even less wattage than the PSC type, which you were commenting about how much less wattage that type uses. Since refrigeration evap. fans run continously, the energy savings add up quickly, and hence pay-back in a reasonable amount of time. Since you stated the evaps were used, it may be a selling and saving point for the owner, to suggest you change out all the motors to the energy saving type. Some utility companies will even give the customer a "rebate" for making those changes to energy saving motors, decreasing the payback time even sooner!
Thank You Mr Jim for all this information, everybody takes coffe brakes.... did you take yout beer brake?
to change the TD did you adjust the TXV? to change the super heat? If so did you check the sub-cooling?
Great video jim. Hey lately i havent seen anymore videos. Hope everything is going well for u.
Nice Job Jim, Nice to see you with a coat on. And what is up with that installer , setting that condenser. Bet he didn't plan on ever working on it.
Arnie Grote I think he was an AC guy trying to do Refrig, he set it up like an AC unit. thanks
You don't really want those splice connectors. They can be more trouble than they're worth since they can also damage the conductor. They also suck when they for some reason miss the conductor all together making you have to do it over again.
Nice video Jim. Why would a company install a condenser in a way that blocks the service access?
*Good quality tools may be nice, but those pliers are way overpriced.*
Cooll Asice I think so , thanks
also all the removed heat is pounding into the side of the unit he's trying to remove heat from, creating a hot spot on the wall
Jim, I've been doing commercial refer now about 3-4 yrs. Started with commercial refer and then did market for a couple years and know I'm back to commercial. You mentioned the TD was too low and you adjusted it, how? Did you adjusted your valve and increase the super heat a bit?
yes, cw increases, ccw decreases
Hey with these videos, when you think you lost a tool, you can review them when you find them missing retracing your steps.. Have you done that before?
jim i been working on residential ac for 18 yrs just started to troubleshoot refrigeration and wanted to a ask if you got any videos of a walking cooler with a leaking liquid line solenoid
Hi Jim!! Really appreciate the videos!!! Question, we replaced an evap fan motor in our walk in freezer and the motor spins considerably slower than the original... It seems like its being sucked in from the draft of the other fan motor.. The only thing I can think of is that it's the wrong wattage(replaced with a 9W motor, only thing we had in stock)... The original has no data as far as wattage.. Is there a standard wattage that these fan motors should be??? I want to buy some to have in stock and replace the motor in question... Any information would be greatly appreciated!!! Thanks and keep up the good work with the vids!!!
Armando Torres contact the manufacturer
What to do if ice comes to the Evaporator fan in the cold room?
Can you give me solutions
Cleaning up after another company. Why didn't they just have you do the job.
Rob HVAC they hired a contractor, he hired their AC guy, it's OK I'll make money with the service and corrections. thanks
its kind of hard to install those fans backwards. the set screw is in the front of the blade the way it should be pushing the air out. Don't know why someone would go through the trouble of going behind the fan blade to tighten down the set screw but there's all kinds of dummies out there.
shady pole verses split
Nice video Jim. Question for you (or anyone who can help) .. I have a friend who owns a deli and my commercial refrigeration experience is limited, but he was told by the last technician that one of the fans was supposed to blow backwards through the evap coil? Does this sound right or should they all blow the same direction? It's an old Larkin. Thanks
Btw - he flipped the blade to do so. It's a CWSE motor
Good video but next time test the left fan with the grill. running that fan without the grill is dangerous. plus that was werid
Lo/to