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  1. Replies
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    Well, I figured it out yesterday, Number 3 tube...

    Well, I figured it out yesterday, Number 3 tube on the heat exchanger was restricted with soot. Dont let anyone tell you units cannot soot up with todays technonolgy. Unbelievable
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    I do not understand your comment? Are you...

    I do not understand your comment? Are you referting to me?
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    GSC 10 TON RTU ROLLOUT SWITCH

    Fisrt time posting here, usually answer questions. This is a good one. I have a rooftop that is going off on rollout. It happens about an hour or so after running. Gas pressure is good, air flow is...
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    I am a service business owner. Itis our policy to...

    I am a service business owner. Itis our policy to shut down any heating system with a bad heat exchanger. We turn off the gas to the unit and document the situation. We leave it up to the customer if...
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    In my opinion, especially on TXV systems, you do...

    In my opinion, especially on TXV systems, you do not charge by superheat. Only on cap tube systems as a verification after weighing in the charge. I do not see the reasoning that you dont clear a...
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    Smart man

    Smart man
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    I remember Manitowowc had many problems with...

    I remember Manitowowc had many problems with their TXV's. The part number 76-2109-3 will for ever be engrained into my memory. They switched to Danfoss which i think is a superior TXV compared to any...
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    HP81 was a replacement for R502 0n Manitowoc Ice...

    HP81 was a replacement for R502 0n Manitowoc Ice Machines. It worked fantastic and at the time of development was huge secret. I have converted out of warranty Hoshizaki's from R502 to HP81, along...
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    This one never goes away.......it depends on what...

    This one never goes away.......it depends on what type of system you are working on. The answer to this question is always yes. However, it depends on what type of system you are working on. The...
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    In my opinion, Delfield reach ins have air flow...

    In my opinion, Delfield reach ins have air flow issues. Therefore, you must use a constant cut in stat and never an air temperature thermostat, even a digital one. If you do, the evaps will freeze up
  11. Thread: manitowac chaos

    by QTEMP
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    They were forced to sell Iceomatic and Scotsman...

    They were forced to sell Iceomatic and Scotsman due to monopoly laws that the EU mandated if the sale was to go through. Nice move....MTW is around 13 bucks right now. Warburg-Pincus bought...
  12. Thread: manitowac chaos

    by QTEMP
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    Not all CVD units work in Chicago or anywhere...

    Not all CVD units work in Chicago or anywhere that the ambient temperature drops below 0 degrees.
  13. Thread: manitowac chaos

    by QTEMP
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    Not all Manitowoc's work in...

    Not all Manitowoc's work in Chicago.........especially when your customer keeps resetting the machine since they don't want to pay you to do it. Define right.....right installation, right refrigerant...
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    Compressor efficiency (I think that's correct)...

    Compressor efficiency (I think that's correct) tests are a tool in helping diagnosing a compressor. In my experience, they have helped me find some tricky problems to diagnose correctly. In fact, if...
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    That's a small self contained air cooled unit....

    That's a small self contained air cooled unit. Well, if all the ice is not clearing then I would make sure you have enough water flow behind the evaporator in harvest. Next, I would make sure the...
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    I could write a book on this one......I had to...

    I could write a book on this one......I had to deal with the same stuff working for my step dad here in Chicago. I was always told.." You have your own problems...blah blah blah. Now I am not saying...
  17. Thread: Walk-in Freezer

    by QTEMP
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    If this is a R502 system, which I assume it is...

    If this is a R502 system, which I assume it is due to the 408A comment, I don't like R408A. I got burned too many times on that stuff. So, I did some in field testing and used HP81 being a Manitowoc...
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    Most manufactures are switching to outsourcing of...

    Most manufactures are switching to outsourcing of their manufacturing. In service terms, the coils are garbage. They are too thin, some are using galvanized sheetmetal on end tubes instead of...
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    Bench testing is a waste of time in my opinion...

    Bench testing is a waste of time in my opinion though. The compressor is not installed on a bench in a room. It has to be under a load and such. It is good for diagnosis and educational purposes. It...
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    Run the suction service valve in and shut down...

    Run the suction service valve in and shut down the system. I would not go too deep into a vacuum though. The pressure or vacuum should hold for almost any length of time. I always put my hand on top...
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    I have to think back on the J series. If I...

    I have to think back on the J series. If I remember correctly, they got rid of safeties 3 and 4. Since safeties one and two actually took care of safeties three and four which are extended freeze...
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    The best way I check to see if an evap is clean...

    The best way I check to see if an evap is clean is shine a flashlight on the evap and make sure the seep holes in the back of the partitions are clean and not plugged. Also, with no ice in the evap,...
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    Iceomatic

    It sounds to me that you nailed it and I am impressed that you cleaned the unit. Smart technician!! I will go out on a limb here since my comments will be contrary to conventional wisdom. Hoshizaki's...
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    That's unbelievable....looks like some low bid...

    That's unbelievable....looks like some low bid soft copper remote refrigeration jobs i have seen in Chicago. Low bid gets the job....forget cost of ownership
  25. Thread: manitowac chaos

    by QTEMP
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    OK....Then I will talk to your customers. Mark me...

    OK....Then I will talk to your customers. Mark me words, Iceoamtic will capture market share. Watch and see!!!!
  26. Thread: manitowac chaos

    by QTEMP
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    Proof that some peolpe still can't see the...

    Proof that some peolpe still can't see the forrest through the trees. Here's another one to laugh at.......buy some physicasl silver and gold since the dollar in your pocket won't be worth much in...
  27. Thread: manitowac chaos

    by QTEMP
    Replies
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    1,783

    Are these CVD machines or traditional remotes?...

    Are these CVD machines or traditional remotes? Either way, here is most likely your problem. First of all, it is IMPERATIVE that the refrigerant charge is correct. Assuming that it is, the solenoid...
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    Fantastic advice and a quick way to check a...

    Fantastic advice and a quick way to check a compressor
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    If you have a locked compressor, or seized...

    If you have a locked compressor, or seized reciprocating anything and chunks of metal fall out then that is definitely 100%a lubrication problem. You don't need an acid test kit to check the oil. If...
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    Cleaning instructions are on the back of the...

    Cleaning instructions are on the back of the front panel on all icemakers in my experience.
  31. Use hotshot....R409 has too high discharge...

    Use hotshot....R409 has too high discharge temperatures. I thing it's R414B from Icor refrigerants. It's the best by far and even is better than R134A IN R134A systems. You will not be disappointed.
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    Yep, sure do.....my first choice and the best TXV...

    Yep, sure do.....my first choice and the best TXV on the market if installed correctly.
  33. Replies
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    The Danfoss expansion valve, and I have to give...

    The Danfoss expansion valve, and I have to give credit to Manitowoc, is THE BEST valve I have ever used. Currently, we are running into all brands of TXV's failing. I don't know what Sporlan has...
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    I have seen the evolution of the icemaker...

    I have seen the evolution of the icemaker industry and it's devolving condition to what it is today. I was part of helping two big manufactures in capturing market share. That was accomplished...
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    Sounds correct to me....but remember to weigh in...

    Sounds correct to me....but remember to weigh in the charge when you change the TXV and if there are two, change them both. Yu can use an over the counter TXV. However, I would use the OEM which is a...
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    keep it comiing

    More comments please. So if I understand correctly low bids and unqualified saleman who promise an all inclusive warranty? What else and any suggestions to change the situation. Thanks again
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    Selling Replacement Ice Machines

    In your opinion, what would take for you as a service tech, a business owner, and a distributor to motivate you to sell a replacement icemaker if the replacement unit was reliable and the manufacture...
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    I'll take that job

    I'll take that job
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    If you are talking about response time to the...

    If you are talking about response time to the customer, then i expect a 15 minute service call response time to the answering service or the customer. Service call response time can be anywhere from...
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    I thought it was both

    I thought it was both
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    The pressurization of the crankcase on a Copeland...

    The pressurization of the crankcase on a Copeland is very difficult to diagnose if you are not familiar with the situation. The oil safety will trip because the compressor is being pressurized due to...
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    Is #1 for multi-evap systems? Because that's the...

    Is #1 for multi-evap systems? Because that's the only thing that makes sense to me. The other two, I really don't get. I always trap my evap coils in walk ins but never used a reverse trap up top...
  43. Thread: Mani Evap Pics

    by QTEMP
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    No problems here....but that quality ice guy is...

    No problems here....but that quality ice guy is really someone to speak to regarding this stuff. I will let him speak for himself......it appears warranty claims are conditional and situational...
  44. Thread: Mani Evap Pics

    by QTEMP
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    890

    Hey listen man......I didn't say that.......I am...

    Hey listen man......I didn't say that.......I am on your side more than ever and I agree with you 100%. I had the big M in my blood and backed their equipment with honor, respect and integrity and...
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    The Glycol unit is in the walk in? Needs to be on...

    The Glycol unit is in the walk in? Needs to be on top of the walk in and it is not designed to run in such of a low ambient condition. I have seen icemakers installed in gas stations in walk in...
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    GVE.....need a GFE1C and charge the system with...

    GVE.....need a GFE1C and charge the system with Hotshot, not 134A...stuff doesn't work as well. 409A is OK, but higher head pressure, which I don't like......and actually, but you would have to...
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    What happened to piping charts and trap a line...

    What happened to piping charts and trap a line every 10 feet of vertical rise. Why is pump down an issue? Piping practices are primarily for proper velocity and oil return. I have been doing remote...
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    Low temp R22 unit........ummm not a good choice...

    Low temp R22 unit........ummm not a good choice engineering wise. R22 is a med temp range refrigerant at best. In my opinion, anything above 160 degrees on a discharge line is going to cook the oil...
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    Sounds like it's time for a production test and a...

    Sounds like it's time for a production test and a PM contract to keep the machine clean. Over 50% of ALL service calls, regardless of what you are working on is breaking down due to lack of...
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    The only way you are going to get rid of an algae...

    The only way you are going to get rid of an algae problem is by using bleach or sanitizer. If you have a Manitowoc, then sell your customer an AUCS system and order the bolttles of sanitizer, not the...
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