THE ICE MACHINE IS EMPTY
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- Опубліковано 30 вер 2020
- The customer called saying they had no ice and it took me a minute to figure out what was happening, but all was well in the end.
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I'm confused. Wouldn't it make more sense to have the sensor probes inside the condenser (not electrical) cabinet so they can respond to cooling load? On a cool day, wouldn't the fans shut off, and be unable to respond to the heat coming off the condensers?
" Walked in and a cook was scrubbing the machine " ... hmm...🤔 is the restaurant's location in Narnia ? Wonderland ? Unicorn County?
Back when I was working in BOH, we'd kill our machine once a month to clean it. Some of us do it because health ratings are one hell of a thing and all of us used it for our coolers and shit if we had a day off. (Side note) Whoever wired that fuckin thing in was an idiot when they did it. Had to kill it through the breaker, they never wired in a switch
Finally a clean and big cabinet, not these small corners where all the electrical stuff is packed beyond believing and where is no room to get a single wire traced down because all is a big messy ball made of wires. This cabinet could have been planned and designed by me...
Yes, for a change Chris did not have to rewire the entire box!
Its amazing what some pre-planning, ~20 extra minutes, labels, and some zip ties can do for the serviceability and longevity of control/service equipment. Taking pride in your work is something not just beneficial to yourself but to these industries as a whole! I personally find it quite cathartic and satisfying once complete.
I'm curious, that toggle switch, the wiring was, what? 16 gauge wire, 14 gauge? And the overcurrent is what? A 100 amp fuse? Really?
@@davidnull5590 Yes, that was odd and someone didn't think this through.
I've encountered icemakers where they were shut off, and I did the same thing, flipped the cusser on, and it immediately harvested ice and kept on going. I inspected the condenser; it was nearly rotted bare, there were next to no fins left! Their contract tech put in a replacement condenser and things were restored to right. The sun had come up and caused the machine to trip on high head, and stayed like that until I had encountered it. I do not apply gauges to an icemaker due to how sensitive they are when it comes to the charge. This was before your digital gauges and valves at the connectors. All I had were quick disconnects. They were bulky and a general hazard if they malfunctioned.
Always try an make sure I don't miss your latest video. Keep up the awesome content..Thank you.
Those KM hoshizakis are some of the best machines ever made.
This is the cleanest restaurant install I've ever seen.
You are so meticulous and picky about your service, I wish you lived here and did residential HVAC. Subbed!
I’m surprised that the manufacturer didn’t use one two stage thermostat which would have been less cost.
Probably didn't want the possibility of loosing all the fans at the same time if the thermostat fails. I thought maybe they could have run a line back from the compressors to a relay each and wire the contacts so that if one of the compressors is running the relevant fans are started.
Chris needs to know that his beard makes him cooler. 1 like equals 1mm more beard for Chris.
With 770 likes Chris will be as cool as Bill from Curious HVAC.
How many mm are comments? Haha.
Only in residential HVAC/R school right now, but i watch all your commercial videos and can’t wait to work on stuff like this. Huge mentor, from myrtle beach!
Great job. Sharing your skills and knowledge makes you a highly valuable person in this world. Ty
Here in Australia we would set the fans up on pressure switches so we can maintain enough head pressure for oil return
your video on a reach-in kairak from about two years ago really helped me out today. thank you for all of your videos, man!
Thats some nice troubleshooting keep it up! Only the temp was tripping it off
We had an issue with my Manitowoc Indigo-series at work (on top of a Cornelius soda dispenser). No response from the lever operated by the customer's cup. So I go over and take a look, and verify the complaint. No ice dispensing, no gear motor running, and I watched it for a while and heard no sound of the agitator kicking in at all. Grumbling to myself, I climb up onto the beverage counter - the display screen is displaying what appeared to be firmware version of something (I wasn't paying too much attention other than no obvious error codes and was not displaying mode selection or ice level). I couldn't figure out how to open up the front panel (it has the "key guard bezel" and I was kinda in a hurry) and I couldn't even look up the model number because it's installed about 2 1/2" inches from the wall (can't read/access the factory tag) and the Sharpie writing on the paper label on the front is too faded to read.
So what is the easiest solution to attempt? Unplug, wait a minute, plug back in. In hindsight, it would have been easier to go to the breaker panel and just flip the breaker because it has its own dedicated breaker... Anyway, the "reboot" worked, as it started making ice and has been fine since. (Certain managers were setting the heat to 80 again, when it was over 80 outside, and I thank myself every day for changing the thermostat's max temp down from 88, I figure it just overheated.)
On another fun note, this past Tuesday our Blodgett convection oven burst into flames, minutes before opening. Four months of sporadic "ERRoR" and shutdowns, four months of the tech denying there was a problem (even accusing us of inventing a problem just to get a new oven). The last two months he demanded cell phone photos of the display every time it shut down on us. He comes in, turns it on, it gets up to temp, he pronounces it trouble-free, and leaves. Except Tuesday the entire electrical end of it burned to a nice crispy mess, the cook pulled the emergency fire suppression system, and when I got to work Tuesday afternoon it was to scrub the entire kitchen from top-to-bottom to clean up the mess left behind by the fire suppression system. Over $7500 in ruined product (food, paper goods, 5 fryers' worth of oil, etc.) and another $6000-8000 in lost sales for the day. Then, the next day, another couple grand's worth of food had to be disposed of because prepped food in the walk-ins (not affected by the incident) had to be thrown out per the health department.
Right on the heels of that compressor replacement on our Traulsen. Which is working wonderfully again. Ah, the joys of working in Food Service.
That's some crazy shit lol. There's nothing wrong with it, place almost burns to the ground. If I was that tech I'd throw in the towel and find another profession before I killed someone.
Thanks for the great videos. I had a problem with a hoshizaki that beeped at me at work. Loved that it had this huge decal of how to take care of it on a panel and it had a # to call for repairs. Called it up and they told me to check a couple things and bam, bad relay. I wish it was all that easy lol. Only problem is nobody at my company set up any PM for it and it got super nasty. Covid happened and they switched to a hands free unit with foot pedals. Now it just sits in the corner. I'll buy some of that cleaner your always showing from your recommendations and I'm going to get a hat from you soon. Dont sell out of them lol.
Gotta appreciate the clean and labeled wiring for sure haha
super interesting video :) also the fact that you removed that tiny toggle switch in order to protect the fuses if a temp ctrl failed is just GENIUS
I watch random videos baked af and I watch yours alot I know nothing about these I'm a audio tech ...but it's cool! And pretty cool to learn this stuff
bruh same. I don't know shit about HVAC but this guy is so knowledgeable that it's crazy interesting when baked af.
@@Coryyyyyyyy man, I'm learning new things and how to repair my own unit
Good find! Great job on how you installed those thermostats! I agree with you on what you told your customer! There can always be multiple issues and you don't have time to watch the machine until the ice fills up! Thanks for another awesome video!
"Nothing blew up, so that's a plus" 🤣
haven't we all said that more than once.. Although I prefer my go to phrase at times like this: "Well it didn't go bang" myself..
Hey chris, it's always a delight to see that you posted another video, love watching it👍👍👍👍
That switch needs a protective cover over it. I use them in my Father's home for the outside lights that have photocells. Prevents people from turning them off just the same.
This is an excellent point. Only the technician and manager should have access to those switches. Not any customers, subordinate employees, etc. The technician should educate the manager on the switches too.
@@kalijasin I've seen clear plastic covers on Amazon and at the hardware store. On the side there is still a tiny gap so you can activate the switch without removing the cover, but accidental trips will be eliminated.
it needs something like these. www.homedepot.com/p/AMERELLE-Switch-Guards-2-Pack-SG1/100628705
if it's kids involved, there's models that are solid on sides with holes at top/bottom for key/pen to turn on/off
Very helpful! Thank you!!
It's great to see someone so through and knowledgeable I love your work ethic do it rite the first time keep up the amazing work awsome videos I actually was talking to my boss about your videos he is a electrical mechanical engineer mastering in refrigeration he was a bit jealous
Great video hopefully your keeping safe from the wild fires!
Nice, neat wiring in the roof unit.
Brilliant work and thanks for the content stay safe and take care
Hosazaki board doesn't lockout on HEAD PRESSURE.
My local hosazaki vendor void warranty if you don't buy CONDENSING UNIT and lineset with it.
Great job, you must have a high NTE and fully stocked van. Your videos are A+
Another great video. Thank you Chris.
Please show more live repairs on you channel ! Your fans love watching them !!
Good video. I like using those 421’s for fan cycling.
Great find Chris!!!
0:42 omg are those zip ties not trimmed oh heck no.....
Great info. Great " Big Picture ".
Hvac master. Love the videos. Always doing great work.
Great job and video
Great, great job man very nice!
Sequence of operations is a must
I want to give a big thumbs up to the manufacturer of that unit for the outstanding wiring configuration and overall neatness.
I use the A-421 a lot to, great stuff ❄️
2:03. A surprisingly neat wiring job though there's not much color to hellp trace wires.
SuburbanDon, there were a/c units named WORTHINTON ALL drawings were by E.SMITH, ALL WIRES WERE RED, OH there were tags on 1 end if you could see them, there WAS a wirieing diagram , but REDUCED in size so you needed an MAGNIFYING GLASS to read them . Thank god they no longer make them , but lots of them out there , cheers 🇺🇸🇺🇸🇺🇸🇺🇸
Best guess 1 min in have an intermittent bin switch going bad had one like that that drove us crazy for a week or so
Ive fallen in love with those a421 controllers. I use them all the time. Great upgrade over those
Mechanical guess o meters.
Good video ! Good find on those mechanicals. Good Repair. Exactly how I would have done it. 😉
Tip - if u are servicing that account now I’d Grab 6 of those bolt in fuses next time u are at a Electrical supply house and Keep them in that cabinet in a Tupperware box. Just bill the customer for them. 😉
Hi Chris,
This was an interesting one, being a control problem.
That toggle switch brings me back to a conversation we had while working on a medium temp rack at a grocery store.
Every bit of switch gear that is in the rack becomes a failure point, so think about that when installing relays, switches, etc.
Regards,
Duncan
You do excellent work!
You are good. Installing the temperature sensors away from the sun in shade !!!!!!!!
You’re work is impressive , thanks for these videos. I learn everyday in my now 21 years at age 39. In my opinion it’s got to be the toughest trade
Wow amazing video
I love This channel ❤❤❤❤❤
Awesome video 👍
Good call on moving those thermostats over to the smaller breaker. I suspect the original wiring violated some section of the NEC. Those big fuses were probably around 100A, and that wire to the thermostats was probably #12 or #14, which is only rated for around 20A. The fuse is supposed to protect the wire, and a 100A fuse won't protect a #12 wire.
True but sometimes not nessesary. If the devices are protected by themselfs (datasheet basically) and the wire has a max length there are exceptions to this. However that does not mean its a good idea in the slichtest
I like it. Great video.
Bro I'm into HVAC cause of you
And learning many things from you and even cleaned and checked out all of ACS in my building also fuses etc
Awesome!!
Great job bro. 👍👍👍👍👍👍
Really interesting where all the site refrigeration shares the same condenser rack, I've not come across that in the UK, must be a US thing. Just a note, and I don't know how true this is, but years ago an electronics engineer told me you shouldn't loop the spare probe cable when tidying it as it can act as an aerial for EMF & therefore give erroneous readings.
I love your videos man I stumbled across them randomly I’m even considering a job in HVAC. Have you ever been out to Fresno for a service call ?
Awesome Chanel and video 👌🙌😊👍🇭🇷
Could use you teaching some classes up in the north country of NY. We have some amazing techs then we have some not so much through various companies around the area. I try and do my best as a hvac tech... but still so much more I'd love to learn
Great video!
Good job
When you started the unit after putting in the tstats reminded me of when I had to rewire 2 million btu heaters to shut off the fan when the flame goes out. Woof
So what is the purpose of a fuse? To protect the wiring. What is the amperage of those fuses? I'll bet it's above the wiring rating that is attached to them. What about that?
I'm going to assume that you've never seen a 3 phase disconnect switch blow up when pulled or put in or you wouldn't have operated that one with a pair of Channel Locks and a bare hand.
there is a reason he turned off all the breakers in that unit...
@@ratchet1freak And there is a reason you turn off a disconnect from outside a panel.
@@ratchet1freak the breakers are after that disconnect so that wouldn't make a difference. Even so idk what this guy dirt road sailing is talking about. For one thing if he has channel locks that's not "bare" hands. That's just a switch not a load. The metal part of the handle does not make contact with any of the electrical... If it blows up someone wired something incorrectly. I've been working on this stuff everyday for years. I've never seen what this guy is suggesting happen ever
@@AnUnapologeticApologist On a new or damaged installation maybe a risk. Chris removed that risk by opening all the downstream breakers first. Plus the rack was running when he got there it's good. Similar disconnects we have in Australia the handle interlocks with the operator rod, you can't open the door with the switch on, makes fault tracing impossible.
@F P I have 35 years in a heavy industrial plant. You guys that toy around in HVAC don't have a clue about electrical.
Hallo from germany , you do your job real good and in my eyes realy caful . Wantched some of your Videos , Like thet not even in germany the guys are working like you so careful :D so hugh greet , and sorry by the way for my school english .
thank you for this vedio
NICE
VIDEO
YAY! May not be a tech but love the video's!
Nice video
Hi Chris. Be glad you don’t have to work on Northstar drum style ice machines.
I remember that you talked about the sequence of operation of an ice machine in some recordings, but I couldn't find them. Could you share links with me? Thank your.
Why would you want no condenser fan unless it's below 50-60F outside, the kwh you save on fan will cost on higher head and higher kwh on compressor??
Even if you were doing temperature control, wouldn't you want it to depend on the temperature of the condenser?
Seems like a very strange setup indeed.
My understanding of the video was that there were three condenser fans, one that was always on and two that were triggered by ambient temperature.
@@petermichaelgreen ok your right and condenser fan 2 and 3 hv separate therms to turn on giving more cfm a higher temps, still 1 coil 1,2or3 fans.
Good one Chris
Man, that's one of the cleaner cabinets I've seen! Too bad they all can't be like that
Hoshizaki The Godfather of ice machines . I have some Hoshizakis with R-22 still going strong . The competition doesn’t like that 🤭😬🤷🏻♂️.
Really enjoy your videos. Quality stuff. I don't always agree with you but that could be a cultural difference between our kit and yours.. .Although constantly amazed at how poor cabinet wiring still is in America. Unshielded live terminals (esp 3 phase) is such bad and dangerous practice.. Really shoddy stuff. Reminds me of my old Carrier service UK days back in the mid 80's I thought the world had moved on..! .. Anyhoo looking forward to the next episode.Much respect:-)
Is the placement of the temperature sensors the best? It is good to have them outside, but at some points of a day they might be in a direct sunlight. It was not clear what is the orientation of the unit relative to the sun.
That would for sure be something you should consider on a case-to-case basis. Any way you slice it though being out of that cabinet is going to net you a much closer measure of actual ambient conditions. If its windy that will help keep the condenser a bit cooler, regardless of where the sun is, whereas measuring in that box it will always be stagnant and like an oven throughout the day.
@@Wiresgalore Good point.
I have to ask, do you call the customer back to make sure every thing is still working? Thanks for the videos. I really enjoy them.
The KA rating of fused than your breaker (200vs14) in cases of a real short the fuse will burn first
I noticed that you never checked the DIFFERERENTAL, on those original PENN CONTROLS , ONLY THE ‘SET POINTS! But this is the very FIRST TIME I ever saw an ice maker that was connected to other things , so what brand was that ice maker anyhow. ? 🇺🇸🇺🇸🇺🇸🇺🇸
Just an observation ~ but a small protective wire guard around the exposed sensors would have been a nice finishing touch.
if were me i would take that temp sensor put in front of cong that way can feel heat n kick on fan to keep it cooler n mostly u dont see is at night time n that going misread temp on cong cause head pressure get high aging
Cleanest rack so far in that unit
If you made a podcast I would watch it and i bet a ton of other people would too.
Guessing the logic behind the switch wiring was to allow troubleshooting of the control circuitry with the fan motor breaker off. Can then check if contactors closing etc without turning on the fans.
Mechanical switches always an issue. Electronic is your best bet. Leibert uses the same mechanical thermostats to control 2 of 3 of their condenser fan motors.
Definately not a Lennox unit, this had very nicely put wiring in it!
the big fuses with small gauge wire, toggle switch and controllers, if anything shorted it would most likely trip the breaker at panel before blowing the fuses. not it should trip the breaker you wired them to instead
To me it seems like the 20A breaker for the temp controls would probably not even notice that the temp control goes bad. But at least it's better than nothing.
But how about sensing the temperature in the area where the fan evacuates air? That would make more sense to me.
Sooo doing this to my coldzone racks
What’s the name of the connector you used to mount the sensors outside of the cabinet?
Genius!
I'm a little confused about those fan thermostats. If the outside temperature is below the settings, what turns them on when the coil temperature gets high?
On that toggle switch, wasn't there something that ran permanent power to the coils? Like the first contacts to the thermostats, and the second contacts to the contactor coils without thermostats in-between. Then if could be a bypass just to run it permanently if need arises.
Also, those temp controllers, aren't there some cascading or interconnect function or similiar in them (like serial port or similiar), allowing both to run off one single sensor? Seems a bit useless to run 2 sensors just to have 2 different temp values for on/off.
Hii sir, what is issue 3 beep in hoshizaki machine ?
Those open fuses though.
With thermostat controlled condenser fans, could there ever be a situation where the compressors would be running without the fans if the temp dropped enough? Or is there a safety measure in place?
Should have weight the harvest a calculate poundage. Hosh is notorious for water valves bleeding through.
you would make a good classroom instructor.