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Type: Posts; User: MicahWes

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  1. Replies
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    I went this afternoon. The equipment is a 1985...

    I went this afternoon. The equipment is a 1985 Norlake drop-in unit on top of the box. It started with R12, then was changed to R401(MP39). That apparently remained in service until sometime in the...
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    Illegal?

    Illegal?
  3. Replies
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    The P/T charts for the two refrigerants are very...

    The P/T charts for the two refrigerants are very similar.
  4. Replies
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    That is probably what I will end up doing. I want...

    That is probably what I will end up doing. I want to go there and see the condition of the equipment first. This customer is cheap. I get the feeling he just wants a gas and go. He isn't very...
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    Mix 414b and 409a?

    I have an occasional and somewhat annoying ice machine customer that has now called me about his 20+ year old walk-in cooler. I didn't make it there Thursday, but I am going in the morning. I have...
  6. Slugging and floodback are two different things.

    Slugging and floodback are two different things.
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    Whatever you do, do NOT sand the evap walls too...

    Whatever you do, do NOT sand the evap walls too smooth. If you do, the ice will sometimes rotate with the auger instead of being forced upward. It will freeze up and torque out in 20 seconds under...
  8. Oh, and yes. You can remove the bearings without...

    Oh, and yes. You can remove the bearings without replacing any seals. The top bearing housing has no seal. Just remove band and twist out top bearing housing. The bottom bearing housing just has an...
  9. Check all the obvious things: Is it clean? This...

    Check all the obvious things: Is it clean? This includes the ice compression nozzle. If you have more than one random torqueout, just remove the bearings and check them. It is so easy on Folletts.
    ...
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    It has nothing to do with saving a negligible...

    It has nothing to do with saving a negligible amount of profit per unit. It has to do with service life reliability. Over the service life of your average, well-maintained reach-in, there is no need...
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    If you put a non-oem (not a constant cut-in)...

    If you put a non-oem (not a constant cut-in) control on a True reach in, are you sensing air temp or coil temp? I wouldn't put an air temp control on one of those boxes. You will have freeze up...
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    1,103

    Remember, a solid-core drier that is a size or...

    Remember, a solid-core drier that is a size or two larger does not hold very much extra refrigerant. A larger drier has a larger dessicant/filtration core and won't hold much more liquid.
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    I think those covers are there more to contain...

    I think those covers are there more to contain shrapnel from a terminal blowout than they are to protect anyone from the live electrics.
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    They don't need heaters. They need more defrosts....

    They don't need heaters. They need more defrosts. Some of my problem open cases run at least a 20 minute defrost every two hours to keep coils clear. You also need to make sure the coil superheats...
  15. I am not familiar with the model you listed, but...

    I am not familiar with the model you listed, but I think you might be misunderstanding the refrigeration circuits. Most Victory cold-wall prep tables have two circuits; One for the evaporator below,...
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    661

    Different refrigerants are different densities,...

    Different refrigerants are different densities, so a hose full of liquid of one kind of refrigerant will be a different weight than a hose full of a different refrigerant. It isn't a huge deal when...
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    The left hand condenser fan blade is on the wrong...

    The left hand condenser fan blade is on the wrong way around, and the blades don't even match.

    The condenser is probably dirty. They always are.
  18. Thread: pump down

    by MicahWes
    Replies
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    1,410

    I have heard many times that the main purpose of...

    I have heard many times that the main purpose of a fan delay is to lower load on compressors. I don't really agree.

    During hot pull down, the fans stay off until coil is below freezing, then they...
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    I have hundreds of mechanical, remote bulb...

    I have hundreds of mechanical, remote bulb controls mounted inside cold rooms. They work just fine that way. Also, loosing head pressure during low ambients will usually cause the suction line temp...
  20. Wow, Mr. Guy! That would cut my business in half!...

    Wow, Mr. Guy! That would cut my business in half!

    I used to roll my eyes when I encountered a reach in with no ports, but I understand why they do this. It really is best for small systems with...
  21. I can only think of one grill cooler (of maybe...

    I can only think of one grill cooler (of maybe 100 that are in my service locations) that could be remoted. They have to be able to be moved out from under the hood.
  22. The purpose of the fan delay is to allow the...

    The purpose of the fan delay is to allow the defrost heat added by the heaters to be removed instead of blown into the room, and to allow residual moisture to re-freeze on the coil so it isn't blown...
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    Well, it sounds like the overload is sensing an...

    Well, it sounds like the overload is sensing an overload!
  24. Most beers would probably be fine (not frozen)...

    Most beers would probably be fine (not frozen) around 28F, but if a standard keg pressure is maintained over the beer (10-14psig) at those temps the beer will overcarbonate quite a bit and be very...
  25. They can have all the opinions they want, what I...

    They can have all the opinions they want, what I stated is matter of physics.
  26. 33-34 is too cold for storage of keg beer. If not...

    33-34 is too cold for storage of keg beer. If not allowed to warm up a little before tapping, it will over carbonate.
  27. Replies
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    What is wrong with this piping? I don't see...

    What is wrong with this piping? I don't see anything that would cause any oil return issues with that tiny little system.
  28. Replies
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    The sanitize light on Prodigy's is turned on...

    The sanitize light on Prodigy's is turned on based on elapsed time and means nothing to to the operation of the machine. You can change the amount of time that has to pass before it illuminates, or...
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    Make sure the water pump is pushed firmly up into...

    Make sure the water pump is pushed firmly up into its mount.

    Sent from my ADR6350 using Tapatalk 2
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    Manitowoc RFO399A Condenser Fan Cycling

    Hello all. Last week I sold a customer an RF0399A flaker. I haven't sold this particular model to anyone before. Well, right out of the box the condenser fan is cycling excessively. It would run 5...
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    Well, the unit would run fine when jumped out on...

    Well, the unit would run fine when jumped out on the roof with all the t-stat wires disconnected. Checked wires going down = OK. Luckily, this store has 8 identical units and stats. Just switched two...
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    I would put it almost on the floor. I think most...

    I would put it almost on the floor. I think most PTAC's evaporate all their condensate, so it shouldn't be an issue.
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    I ran across it today. It was a bad thermostat.

    I ran across it today. It was a bad thermostat.
  34. I had to change the compressor in one of these...

    I had to change the compressor in one of these last week where the ice cream sink AND the hand sink were both hanging down into the condensing unit compartment.
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    Hopefully there is also some allowance for...

    Hopefully there is also some allowance for make-air in a room that holds that many people.
  36. Replies
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    I'm confused as to why it is so hot on the main...

    I'm confused as to why it is so hot on the main floor of the auditorium? I have a couple of theaters. One is a single screen that is about 80 years old. We have a problem there with the rear being...
  37. Replies
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    I have changed two leaking encapsulated controls...

    I have changed two leaking encapsulated controls this week already.
  38. Replies
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    Why? I don't really have any issues with unit...

    Why? I don't really have any issues with unit coolers in walk-ins developing leaks like small reach-ins do.
  39. Replies
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    Start here. This isn't normal.

    Start here. This isn't normal.
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    I think it was the headmaster all along.

    I think it was the headmaster all along.
  41. Replies
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    Veto's warranty is written in such a way that...

    Veto's warranty is written in such a way that they can deny most zipper claims IF they want to:

    http://www.vetopropac.com/warranty-policy
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    Oh, I see. It isn't always doing that, it is...

    Oh, I see. It isn't always doing that, it is doing so because there is a half slab of ice left on the evaporator.

    Yeah, try thickening the bridge a little as others have said.
  43. Replies
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    Why is water overflowing from the sump?

    Why is water overflowing from the sump?
  44. Replies
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    Don't all the ICE series machines use a curtain...

    Don't all the ICE series machines use a curtain switch to stop the machine when the bin is full?

    Even if they are using a bin thermostat, I can't really see water dripping off of it causing it to...
  45. Replies
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    http://www.yellowjacket.com/content/catalogs/hvac/...

    http://www.yellowjacket.com/content/catalogs/hvac/04VacuumandChargingHoses.pdf

    Page 27 shows a chart with liquid ounces per foot of hose for different refrigerants.
  46. Replies
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    Have you ever looked at the refrigeration system...

    Have you ever looked at the refrigeration system in these bottled water coolers? Don't worry about charging them. You will never have to do it. Unless there is a bad switch or thermostat, any other...
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    Installed another Kold-Draft with a crusher...

    Installed another Kold-Draft with a crusher today! I think that makes 10 (that I know of) in the Raleigh/Durham/Chapel Hill area.
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    It is the first ammonia plant in an ATHLETIC...

    It is the first ammonia plant in an ATHLETIC facility.

    There are many ammonia systems in other applications there.
  49. Replies
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    I use a 1/8-ish punch to whack the intersection...

    I use a 1/8-ish punch to whack the intersection of the loose grids. You can sometimes get them in there pretty good that way. I have done it many times as a temporary repair, but I know of at least...
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    Exactly. Also, I work in morgue coolers...

    Exactly.

    Also, I work in morgue coolers fairly often. They are usually impeccably clean and do not smell. Well, they smell like disinfectant. If they have warmed up there is sometimes a little...
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