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  1. As Jay said iOS looking at the two points for...

    As Jay said iOS looking at the two points for sub-cooling. The fans should stage up in pairs or be on a VFD and run together. Are the settings in the fan VFD correct. It gets a 0-10 VDC to drive the...
  2. They look like condenser fan motors I have had to...

    They look like condenser fan motors I have had to change on MRI chillers mounted in a semi-trailer. I think it was a Northern Air set up. They sent out the whole assembly, that thing weighed at ton...
  3. Might just be me but I don’t think I would let...

    Might just be me but I don’t think I would let kids or wife in that bathroom until you know what it is. If you need the room cover it with something that won’t let an image thru. Better to be safe.
    ...
  4. Replies
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    Views
    393

    If you could post a full log of chiller. Model...

    If you could post a full log of chiller. Model number would help as well. Software changed over the years would allow looser control of PRV and speed. Verify sensors are correct and PRV is...
  5. Thread: York YCAV0157

    by Chev5372
    Replies
    6
    Views
    580

    You could close the oil line isolation valve and...

    You could close the oil line isolation valve and pump oil into the oil filter cover plate. A quart should do it fill the filter cavity and push down the oil passages into the bearings. A quart could...
  6. Thread: York YCAV0157

    by Chev5372
    Replies
    6
    Views
    580

    Yes correct Sent from my iPhone using...

    Yes correct


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  7. Thread: York YCAV0157

    by Chev5372
    Replies
    6
    Views
    580

    If you matched wire for wire at the compressor...

    If you matched wire for wire at the compressor terminals should not be a problem. If unsure match the wiring diagram for wire numbers.
    You have a minute or two to shut it down.


    Sent from my...
  8. Replies
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    896

    The old choke coil trick . York used them a-lot...

    The old choke coil trick . York used them a-lot on the LCW (?) chillers for low ambient fan control . The transformer was used to drop the voltage to the motor to slow it down.


    Sent from my...
  9. Yes have run into it before. Check calibration of...

    Yes have run into it before. Check calibration of level sensor and charge. Could be chilled water loop issues, flow or too low return temperature. There has to be enough gas moved to the condenser...
  10. There is a temperature sensor on the liquid line...

    There is a temperature sensor on the liquid line coming out of the bottom of the condenser heat exchanger.


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  11. Replies
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    449

    Some one has put it back to factory. Then try ,...

    Some one has put it back to factory. Then try , may have been going off on high head when starting so some one thought run the fan right away and moved the wire.
    If the chiller had VFDs on the...
  12. Replies
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    578

    They are planning replacement in spring of 2021....

    They are planning replacement in spring of 2021. This chiller is smooth wore out. Comfy coils trashed from the patio misters they put up to cool the coils when it gets stupid out out. There are three...
  13. Replies
    9
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    578

    We don’t need a rental. There are five...

    We don’t need a rental. There are five compressors across four system. Compressor B1 , which is where the water enters the chiller will not open the EEV , checked ohms at the board and have 1.7K-2.0K...
  14. Replies
    9
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    578

    Thanks ,Carrier parts will have one in October....

    Thanks ,Carrier parts will have one in October. Season will be over by then.


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  15. Replies
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    578

    Carrier 32GB404394

    Does anyone have a Carrier 32GB404394 they would like to sell?


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  16. Replies
    16
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    486

    We have had four YLAA chillers lately that have...

    We have had four YLAA chillers lately that have pump packages , pumps mounted on the chiller skid . Three no control valves , one had a mix of three way and two way on their loops. The three should...
  17. Replies
    11
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    648

    I suppose if a guy had a angle valve on the oil...

    I suppose if a guy had a angle valve on the oil sump the guy could put a gauge on there to see what kind of pressure he had with the pump on or off.
    You will have to put up with some running around...
  18. Replies
    11
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    773

    I remember a green letter from long ago about...

    I remember a green letter from long ago about some oil separators you just could not run below 30% FLA . I think they were on S2 compressor bodies.


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  19. Replies
    53
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    2,017

    Tin foil hat time a jug of one color called...

    Tin foil hat time a jug of one color called another jug a racist so the Government stepped in and now they are all the same sex just like the bathrooms. Maybe they are teaching this in school as...
  20. Replies
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    305

    You will still have pressure on the return side....

    You will still have pressure on the return side. May not be as much as the supply side but it will there.


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  21. Replies
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    877

    As mentioned should not be a problem as long as...

    As mentioned should not be a problem as long as the solenoid is sized right for the flow of both TEVs and the liquid line after the solenoid are equal in length , as well as the suction lines.
    ...
  22. Replies
    53
    Views
    2,017

    Use a magic marker to make the type up by the...

    Use a magic marker to make the type up by the valve , usually that area doesn’t get banged around.


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  23. Replies
    16
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    977

    Down load the Kele catalog most of the products...

    Down load the Kele catalog most of the products they sell have simple wiring diagrams to help you figure out what to do.
    Our United has been ruined by the new manager. I only go there now to get...
  24. Replies
    16
    Views
    977

    Kele makes a sequencing card that will take a...

    Kele makes a sequencing card that will take a 0-10 VDC signal to control relays to replace the old Honeywell stepper control. A Honeywell T775 or JCI 450 will out put a 0-10 signal the drive the Kele...
  25. Replies
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    863

    You are welcome Sent from my iPhone using...

    You are welcome


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  26. Replies
    19
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    863

    On your first post the down load showed 98 %...

    On your first post the down load showed 98 % liquid level, way wrong open the valve and disable ,limit current and see how it settles down. Gas may have been added or oil added. I would get a base...
  27. Replies
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    863

    It can be thought of as taking off from a stop...

    It can be thought of as taking off from a stop sign in a heavy truck in high gear, the engine is going to stall. At fixed speed the PRV is trying to adjust load by opening and it overloads the motor...
  28. Replies
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    863

    I would command the PRV closed and then bring...

    I would command the PRV closed and then bring speed up to 60 Hz. Keep an eye on the amps they should come up slow but not get crazy. Then see if the PRV causes the amps to come up slow. If the liquid...
  29. Replies
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    863

    Let’s start off with the chiller off and see if...

    Let’s start off with the chiller off and see if all the transducers and temperature sensors make sense, saturation temps look the same as water temperature.
    Go to compressor screen , VSD tab and...
  30. Replies
    11
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    529

    Use the history to see what is happening , should...

    Use the history to see what is happening , should be able to narrow down the problem.


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  31. You set off a different alarm since the Opti-view...

    You set off a different alarm since the Opti-view did not detect condenser water flow so you will have to reset in a different screen. This is an open forum so you may not get a lot of easy answers....
  32. Replies
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    1,250

    Talking with Denny Dietz years ago York tried...

    Talking with Denny Dietz years ago York tried copper at first on the YS chillers and found it would work harden and start to leak. Went with the mild steel. Have only had to repair a few over the...
  33. The reason the pressure go up is you are losing...

    The reason the pressure go up is you are losing condenser surface to condense in once that happens pressure has to go up. Simple enough blow up a birthday balloon it only holds so much then it pops....
  34. The calibration is different then the PRV( Igv)...

    The calibration is different then the PRV( Igv) pot then the centrifugals. Check the JCI web site in product literature section , rotary screw YS header you should be able to find it.


    Sent from...
  35. Replies
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    474

    The important thing is you stopped and thought it...

    The important thing is you stopped and thought it out. There are to many techs that would have said screw it.
    Way to take care of the customer!!


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  36. Replies
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    33,773

    He was “ reaming “ the pipe. Somebody had to...

    He was “ reaming “ the pipe.

    Somebody had to go there , a lot were thinking it!


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  37. Replies
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    1,145

    Good just asking. Sent from my iPhone using...

    Good just asking.


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  38. Replies
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    1,145

    How do they keep the room from getting to warm...

    How do they keep the room from getting to warm when the RTU goes into heat and blows heated air in thru a 12 inch duct?


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  39. Loss of liquid seal alarming is now ignored below...

    Loss of liquid seal alarming is now ignored below 40% FLA with the new software. To eliminate false warnings. It was found that the loss of seal at low loads has no ill effect.


    Sent from my...
  40. Let him know why. Sent from my iPhone using...

    Let him know why.


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  41. Thread: Joy Fans

    by Chev5372
    Replies
    4
    Views
    712

    Start half open get VFD to 60 HZ and slowly...

    Start half open get VFD to 60 HZ and slowly change pitch to get FLA of motor. Keep an eye on duct static so you don’t blow duct apart. Last few we did had two or more fans so we could keep others off...
  42. There is a 30 page tech letter that covers all...

    There is a 30 page tech letter that covers all the styles. It has part numbers in it.


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  43. If you need the chiller on line drive the liquid...

    If you need the chiller on line drive the liquid level control valve to open and pull the electrical connector off the valve , power loss will but valve back to auto. Other wise get the tech letter...
  44. Verify transducer is reading correct. Verify...

    Verify transducer is reading correct.
    Verify your leak detector is working.
    Take your water pressure drops with only one gauge, pressure drop on sales order screen is in feet water column not PSID....
  45. Replies
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    1,015

    If the chiller is tight should not matter which...

    If the chiller is tight should not matter which brand you but on.


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  46. Replies
    13
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    1,015

    York has a stand alone purge that is a relabel of...

    York has a stand alone purge that is a relabel of the Redi-purge made by Redi-controls. Check pricing on all three , the Trane,York and Redi- purge all work the same.


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  47. Replies
    8
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    3,293

    More then likely the settings on the BRAM have...

    More then likely the settings on the BRAM have been lost. There are settings that need to be checked , I won’t post on an open forum.


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  48. Replies
    3
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    399

    Verify the VDC is getting to slide valve coil. If...

    Verify the VDC is getting to slide valve coil. If it is the capacity control valve maybe stuck due to trash. Change it out , cheap first step, if that does not get the compressor to load up. There is...
  49. Replies
    4
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    340

    United refrigerant is a National chain of supply...

    United refrigerant is a National chain of supply houses and the manufacture of national refrigerant brand of refrigerants. Cost may vary by branch. You can down load their catalog at URI. com.

    ...
  50. Replies
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    United sells a kit one for low pressure, R11/R223...

    United sells a kit one for low pressure, R11/R223 and one for higher pressure, 23/134/400 gases. Take 8-10 Oz. and send it in . You get a full report.


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