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  1. Another possibility could be the base plate of...

    Another possibility could be the base plate of pre-famulated amulite surmounted by the two spurving bearings could be stuck. Itís a pretty easy fixÖ
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    Generally speaking 1 chiller fully loaded is more...

    Generally speaking 1 chiller fully loaded is more efficient than 2 chillers at part load. Plus, the power factor goes out the window.
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    Are you saying if you run 2 1000 ton chillers...

    Are you saying if you run 2 1000 ton chillers unloaded to 500 tons each they both use less power than 1 chiller at full load???
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    🍿🍿🍿

    🍿🍿🍿
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    Thatís normal. If you replace the check valve,...

    Thatís normal. If you replace the check valve, youíll find it doing the same thing.
  6. Thread: RTHB Oil Change

    by R123
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    Just curious, why do you want to change the oil?

    Just curious, why do you want to change the oil?
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    Do you have an economizer on the liquid line? The...

    Do you have an economizer on the liquid line? The new Trane Agility mag bearing chiller has a plate frame heat exchanger on the liquid line where the liquid passes through one side of the heat...
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    Classic ďStick-SlipĒ issue. Itís normal for the...

    Classic ďStick-SlipĒ issue. Itís normal for the discharge pressure to equalize in the off cycle.
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    You may want to post this question in the...

    You may want to post this question in the refrigeration forum instead of the chiller forum.
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    There is a procedure for removing moisture and...

    There is a procedure for removing moisture and acid from RTACís but Iím not posting it in the open forum. Get your post count up and apply for pro membership and we can discuss it on the closed forum.
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    Itís all online on Webcats. There is no paper...

    Itís all online on Webcats. There is no paper parts manual. Parts are constantly being superseded.
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    I think he got scared off.

    I think he got scared off.
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    Iíd also like to know what filter your going to...

    Iíd also like to know what filter your going to change for the moisture??? I definitely think your in over your head.
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    Or realize that R-22 is coming down in price and...

    Or realize that R-22 is coming down in price and leave it aloneÖ
  15. Did someone put you up to this question?

    Did someone put you up to this question?
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    In many cases, you can convert to 410A without...

    In many cases, you can convert to 410A without replacing the coil. And you donít need to replace the line sets. Just blow out the coil and lineset with nitrogen, replace TXV to 410A TXV, and replace...
  17. Thread: TU service tool

    by R123
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    Yep.... except heís been trying to get the...

    Yep.... except heís been trying to get the password since yesterday morning. If heíd open the book and looked up binding, heíd have the password instantly.

    I honestly donít have the password...
  18. Thread: TU service tool

    by R123
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    Donít know what your working on but the password...

    Donít know what your working on but the password is in the IOM.....



    Yep.
  19. Thread: TU service tool

    by R123
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    Ditto

    Ditto
  20. Thread: TU service tool

    by R123
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    Thatís not the binding password and weíre not...

    Thatís not the binding password and weíre not supposed to be posting chiller passwords in the open forum.
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    https://uploads.tapatalk-cdn.com/20190409/8c593bc1...

    https://uploads.tapatalk-cdn.com/20190409/8c593bc128cdbd8b374f0a32a5e33fbe.jpg
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    All I can say is..... WOW!

    All I can say is..... WOW!
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    Can you clarify if the pump control relay in the ...

    Can you clarify if the pump control relay in the CHILLER is controlling the pump?
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    https://hvac-talk.com/vbb/showthread.php?2206209-W...

    https://hvac-talk.com/vbb/showthread.php?2206209-What-is-behund-the-fins&p=25696339
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    Does the chiller control the pump?

    Does the chiller control the pump?
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    I donít know what PTC or NTC is but no, you canít...

    I donít know what PTC or NTC is but no, you canít calibrate the sensors in a CGAM.
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    A vent.

    A vent.
  28. Thread: TU service tool

    by R123
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    Call your Trane salesman. He can help you.

    Call your Trane salesman. He can help you.
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    Put in a chiller so you donít have to worry about...

    Put in a chiller so you donít have to worry about chasing down refrigerant leaks all over the place.
  30. Thread: Three fuses

    by R123
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    Iím finding that many items are cheaper on Amazon...

    Iím finding that many items are cheaper on Amazon Prime than Grainger or any other wholesale HVAC supplier. And you get it in 2 days. I changed a capacitor in my neighbors unit with my spare...
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    There is no kit. You have to order them...

    There is no kit. You have to order them individually. I have a PDF that has all the cables and part numbers but Iím not posting it in the open forum. Apply for pro membership and Iíll post it in the...
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    Iíve done 3 or 4 dozen RTAC recableing jobs. I...

    Iíve done 3 or 4 dozen RTAC recableing jobs. I get rid of all the flat ribbon cables and repleace them with pluggable connector cables. Since the temp sensors donít cost that much (2 to 3 times...
  33. Thread: Three fuses

    by R123
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    This is my thought.

    This is my thought.
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    Nominal GPM for chilled water is 2.4 GPM/ton...

    Nominal GPM for chilled water is 2.4 GPM/ton which equates to a 10 degree delta at full load. Running 3.0 GPM/ton is faster than nominal flow which lowers the delta to 8 degrees at full load. Most...
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    Thatís a lot, 8 degree delta.

    Thatís a lot, 8 degree delta.
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    Are you just going to come on this site and keep...

    Are you just going to come on this site and keep asking questions and not respond or are you going to participate in the discussions? If you keep doing this, your going to get cut off.
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    807662 Here is the data plate from one of my...

    807662

    Here is the data plate from one of my units at my house. I have 240 volts 1 phase service. Sorry for the sun faded pic.
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    Timebuilder, I highly respect your electrical...

    Timebuilder, I highly respect your electrical knowledge but what I don’t understand then is in Houston where I live, almost all residential HVAC units are labeled 208/230 volts single phase. In the...
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    208/230 volt is nominal voltage, not min and max....

    208/230 volt is nominal voltage, not min and max. The voltage utilization range for 208/230 is something like 187-252 volts so 240 volts would be acceptable. If what you said was true, almost all...
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    I read the original post and Iím not saying to...

    I read the original post and Iím not saying to wire from the high leg to neutral. Iím saying to wire from PHASE TO PHASE.
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    The way your wording this isnít really right. I...

    The way your wording this isnít really right. I think you mean ďlegsĒ not ďphasesĒ as a single phase unit only uses 1 phase which is 1 transformer winding between 2 wires (or legs). As far as...
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    Thatís my point..... the unit doesnít care what...

    Thatís my point..... the unit doesnít care what voltage you measure from phase to ground. It only cares what the phase to phase voltage is.
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    You can use the high leg on 240 volt single phase...

    You can use the high leg on 240 volt single phase but canít pull 120 volts off the high leg. The unit doesnít care what the phase to ground voltage is.
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    I can too.

    I can too.
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    I donít understand what you are saying.

    I donít understand what you are saying.
  46. If you want to connect to the chiller via BACnet,...

    If you want to connect to the chiller via BACnet, youíll need to upgrade the chiller controls to AdaptiView which should be done anyway because the UCP2 chiller controls are obselete.
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    You mean thatís why my balls are hanging all the...

    You mean thatís why my balls are hanging all the way down and dipping into the toilet water now? I was wondering about that.
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    Everything you said is correct except RTACís...

    Everything you said is correct except RTACís RTAAís and scrolls originally didnít have factory startups paid by the factory. That was changed about 10 years ago. Our office always provided startup...
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    Yep, Trane has to start all Trane chillers....

    Yep, Trane has to start all Trane chillers. Centrifugalís, Series R, and CGAMís. Startup costs are included in the price of the chiller.
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    Dude, how long have you been a Trane tech? You...

    Dude, how long have you been a Trane tech? You are wrong on everything your saying.
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