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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!!!!
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