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  1. Replies
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    Service Phase Protection Compressor Stage 2....

    Service Phase Protection Compressor Stage 2. ........maybe??
  2. Can you find which point is causing the alarm,...

    Can you find which point is causing the alarm, and just change the parameters to make it stop reporting?
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    Yeah, they suck. Few weeks back, I had to send...

    Yeah, they suck. Few weeks back, I had to send them pics of a screw chiller so they could "see where the parts were located on the machine."
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    Allied supply in Ohio. Talk to Sarah, she's...

    Allied supply in Ohio.

    Talk to Sarah, she's great. 800-589-5690
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    you guys have this thing fixed yet?!:pop:

    you guys have this thing fixed yet?!:pop:
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    But what if you 'figured' it was snake oil BS all...

    But what if you 'figured' it was snake oil BS all along?:whistle::grin2:
  7. logic would dictate a stat wiring issue.... ...

    logic would dictate a stat wiring issue....

    which side of the transformer smoked...primary, or secondary?
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    https://vtsgroup.com/ae Very interesting. You...

    https://vtsgroup.com/ae

    Very interesting. You can get them with a permanent magnet DC motor.

    They don't look bad, are you simply concerned that the blower wheel itself is not made of steel?
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    I've always called them aerofoil, or axial...

    I've always called them aerofoil, or axial fans.....never heard "plug fan"...interesting.


    they act more like a centrifugal pump or chiller impeller.....in that, they can experience surge and...
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    That's the beauty of being super internet...

    That's the beauty of being super internet keyboard techs!!....we can diagnose problems at the speed of light, with the stroke of a key! LOL!!
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    With 58* SH your cap tube is restricted.

    With 58* SH your cap tube is restricted.
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    welcome to the site! a few things can cause...

    welcome to the site!

    a few things can cause this....

    air flow too high.....lifts the condensate off the coil, and tosses it down into the AHU, where it leaks out

    solution: check and adjust...
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    I don't see how a contractor could be held...

    I don't see how a contractor could be held liable.

    there may be some sort of requirement from the settlement like a rebate for customers, etc.


    I brought this up to someone yesterday, and...
  14. if there's enough to freeze into a ball of ice...

    if there's enough to freeze into a ball of ice and block the compressor suction, I don't think a lab sample is necessary!🙄🤣
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    You wouldn't have to physically move the coil. ...

    You wouldn't have to physically move the coil. Just install some simple relays to switch the valve control in the winter. If your actuators are the same, just divert the control signal to the...
  16. I'm curious how this turned out. Any update ?

    I'm curious how this turned out. Any update ?
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    If the freeze points are good, and the reheat...

    If the freeze points are good, and the reheat coil sized correctly, I don't see why it's necessary.

    BUT....I think 30% glycol is somewhere around -5*F. With a 4*F set point, and your Outdoor...
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    do you have any of those pics from your Japan...

    do you have any of those pics from your Japan trip?

    I was floored seeing the insides of those pipes brazed without nitrogen. I had no clue it was even possible to control your brazing heat...
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    new installs get it 100% of the time. small...

    new installs get it 100% of the time.

    small systems, any repair gets it 100% of the time.

    large systems, varies.....depends on how much is being done.

    I only do commercial, so I rarely deal...
  20. Thread: Hot block

    by 71CHOPS
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    Depending on what you get, they are very...

    Depending on what you get, they are very effective.

    However, if it's a Schrader valve, ALWAYS remove the core before brazing....the thermal blocks won't keep from melting rubber seals.

    I use...
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    Or a chop saw with a stainless cutting blade, and...

    Or a chop saw with a stainless cutting blade, and wax lube. A good high rpm blade will be $2-300 bucks.
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    Or get some heavy duty hose that won't kink. ...

    Or get some heavy duty hose that won't kink. Just had to buy a 100' roll yesterday for a roof. Closest choice was ACE hardware. They had a craftsman 6 sided (not round) heavy duty that didn't...
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    Don't guess....if the system is still running,...

    Don't guess....if the system is still running, checking temps is easiest, but if it's not, physically trace the lines back to a point that you can verify exactly which is which.
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    Just had a plant run a bunch of stainless steam...

    Just had a plant run a bunch of stainless steam piping. They used megapress on it.

    I think there are specific dies and cutting oil for stainless.
  25. you may be misinterpreting the P/T chart for...

    you may be misinterpreting the P/T chart for water.

    it freezes at 4500 microns......so if you go below that level and still have moisture in the system, it could turn to ice. in which case, it...
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    Ahhh, interesting, thank you, have never dealt...

    Ahhh, interesting, thank you, have never dealt with one.
  27. maybe....only refrigerant and oil samples will...

    maybe....only refrigerant and oil samples will tell the truth.

    personally, I believe, if there was enough moisture to physically plug a suction screen, then the refrigerant is contaminated...and...
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    what do you mean by the packing cylinder? it's...

    what do you mean by the packing cylinder? it's on the non steam side of the expansion joint, but within the cylinder?
  29. double post

    double post
  30. alright, lets step back a bit.....so far we have:...

    alright, lets step back a bit.....so far we have:

    the remote evaporator barrel had a tube rupture that contaminated the system with water.

    the barrel was replaced, the system was evacuated to...
  31. IF only hit 3000, then you weren't done. is...

    IF only hit 3000, then you weren't done.

    is this a split system?? just curious how you could still have water in the system, but it has been replaced.
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    Not sure why you guys don't know what a DROPLEG...

    Not sure why you guys don't know what a DROPLEG is......maybe a regional thing?


    A drop leg is the final pipe connection leaving a condenser or receiver.

    on a receiver, it is usually a large...
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    you'll fit in just fine around here!! LOL!! ...

    you'll fit in just fine around here!! LOL!! apply for Pro membership!
  34. Yup, if there's that much water still in it, then...

    Yup, if there's that much water still in it, then there is no possible way a proper evacuation was completed......OR, you still have water leaking into the system.
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    You have to understand that we have people come...

    You have to understand that we have people come here regularly that want help, but don't post enough information to even get an idea of what could be going on. then they never return after the...
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    Not familiar with that particular unit, but I...

    Not familiar with that particular unit, but I would verify all sensors and transducers are reading correctly, and all match resistance/ voltage charts.

    Also check every single wire connection,...
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    Well, just had to cut 1/2" off the stationary...

    Well, just had to cut 1/2" off the stationary side rods for clearance today, so I guess it's not so gently used anymore. You can still screw in extensions if needed.

    Will take $3,000 for it....
  38. Thread: Air purifier

    by 71CHOPS
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    It's just a 24x24 hepa box filter. Call any good...

    It's just a 24x24 hepa box filter. Call any good filter supplier, there are many sizes available.
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    Not a rack guy either.... What's your normal...

    Not a rack guy either....

    What's your normal receiver level for the current ambient? 35% seems low if you're not flooding for head pressure control.

    Were you just having problems with a few...
  40. Thread: Air purifier

    by 71CHOPS
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    UV lights don't really do anything to the air...

    UV lights don't really do anything to the air stream. Air flowing by them isn't in "contact" long enough to do a lot.

    They are more affective keeping things from growing on surfaces.

    I...
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    Another possibility, while rare, is that the unit...

    Another possibility, while rare, is that the unit wiring diagram is not actually correct for that unit.
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    IF that's the case.....AND it was wired properly,...

    IF that's the case.....AND it was wired properly, there could be an issue with the interconnecting wiring within the unit.
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    You've installed a 1/2 HP motor in place of a 3/4...

    You've installed a 1/2 HP motor in place of a 3/4 HP......you need to get the correct motor for the application.

    Also...NEVER size a motor by HP ....ALWAYS use amp draw. Manufacturers can lie...
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    Sounds like you got it figured out. I would...

    Sounds like you got it figured out.

    I would convince them to let you cut the header off completely. It's really not that much work to put it back together with some couplers.

    Just had a recip....
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    So here's an interesting thought. And I only...

    So here's an interesting thought.

    And I only bring it up because today, I had to source a new 460V 1PH fan motor, and prop.

    I couldn't find a CCWLE motor, or a CCW 33*, 4 blade, 24"...
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    What he said! If you're using a rescue motor,...

    What he said!

    If you're using a rescue motor, forget about the original diagram, and simply use the rescue wiring diagram.

    Black to L1, White to L2, brown and brown/white to the new cap.
    ...
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    Put a tap in the discharge line entering the...

    Put a tap in the discharge line entering the coil, put a tap at the first liquid leg leaving the coil.

    Then put one on the subcooler line entering the coil, and another at the subcooler leaving...
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    I'm a little confused. You keep saying...

    I'm a little confused.

    You keep saying "cooling flow", but you are referencing "outdoor" components, and seem to be describing refrigerant flow for heating mode.

    You are also saying "common...
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    Man, you might wanna check that media. Looks...

    Man, you might wanna check that media. Looks like the door seals are shot.

    Looking at the dirt trails, you could have a plugged block of media.
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    Ah, gotchya. Some of them have wheels that are...

    Ah, gotchya. Some of them have wheels that are mounted horizontal and spin pretty fast..

    If you're losing belts on a standard blower, then you have something wrong, or the drive system is...
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