Search:

Type: Posts; User: patpinet

Page 1 of 7 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    5
    Views
    478

    Evap gpm goes from 2 to 2,4 gallons per ton....

    Evap gpm goes from 2 to 2,4 gallons per ton.
    Some people go lower than that.

    With the chart in the chiller manual you can figure out gpm with delta P
  2. Thread: 30hxc and oil

    by patpinet
    Replies
    7
    Views
    508

    Personally I would pump back the same amount back...

    Personally I would pump back the same amount back in the chiller.
    Unless you have good reason to think that it was overcharged.
    Oil pressure will tell you nothing.

    The right quantity is in the...
  3. Thread: 30hxc and oil

    by patpinet
    Replies
    7
    Views
    508

    Found that in that manual Condenser and oil...

    Found that in that manual

    Condenser and oil separator (30HXC)

    30HXC chiller use a vessel that is a combination condenser and oil
    separator. It is mounted below the cooler. Discharge gas...
  4. Thread: 30hxc and oil

    by patpinet
    Replies
    7
    Views
    508

    Where is piped the relief at the bottom or on top...

    Where is piped the relief at the bottom or on top of the shell?

    Condensor as a dual function it's the oil separator and the condensor.
  5. Replies
    25
    Views
    1,238

    I'm no pro with ice rink but refrigeration is...

    I'm no pro with ice rink but refrigeration is refrigeration.

    Is it a indoor ice rink?

    If.yes what is the ice (or evap temperature)?
    I find 55 f pretty low for condensor water, normal value...
  6. Replies
    25
    Views
    1,238

    Low gas

    Low gas
  7. Replies
    13
    Views
    1,262

    Personally I wouldn't do the combustion analysis....

    Personally I wouldn't do the combustion analysis.
    It's a atmospheric burner and there's not much you can do to adjust combustion.

    Make sure you have the right manifold pressure at high fire. ...
  8. Replies
    13
    Views
    1,262

    Corrosion on the ground wire of the Ignition...

    Corrosion on the ground wire of the Ignition control.
    Ground wire is the one that read the flame signal and get it back to the Ignition control.
    Have you measured uA reading on the flame rod?
    Is...
  9. Replies
    15
    Views
    1,921

    Gage are always accurate. More reliable than...

    Gage are always accurate.
    More reliable than gimmicks.
    Don't need battery.

    And if you live up north display will freeze.

    Tool ain't making the technician.

    Just my feelings this morning.
  10. Thread: 23XRV VFD

    by patpinet
    Replies
    6
    Views
    485

    Because voltage goes down amperage goes up. But...

    Because voltage goes down amperage goes up.
    But kw always the same.
    I've done some math on my side to confirm.

    Customer is paying kw so it won't affect is electricity bill or consumption.
    ...
  11. Thread: 23XRV VFD

    by patpinet
    Replies
    6
    Views
    485

    Quick update from our R&D departments at 575 in I...

    Quick update from our R&D departments at 575 in I have 60 amp
    For 390 volt out at 80 amp frequency at 38hz.
    Lower the speed higher the amp reading difference.

    My friend Google told me that what...
  12. Thread: 23XRV VFD

    by patpinet
    Replies
    6
    Views
    485

    Got 2 new daikin awv (variable speed screw) I...

    Got 2 new daikin awv (variable speed screw)

    I have saw too that there's a difference between amp on the line side and the load side..
    I'm heading there tomorrow morning. I have not noted how big...
  13. Refrigerant will migrate to the coldest place,...

    Refrigerant will migrate to the coldest place, depending on the type of chiller might or might not create a issue.
    Probably not.
    Like you said running hrc will save on cooling tower and reheat...
  14. Why not run water to a stopped chiller? If...

    Why not run water to a stopped chiller?

    If your using another source for heating for your reheat your paying twice
  15. (edited) What type of load you want to maintain...

    (edited) What type of load you want to maintain on cooling side (process or comfort) and where do you send the heat recovered?
    If there's a demand for heat I'd start hrc until there is no more room...
  16. If the chiller were built for heat recovery they...

    If the chiller were built for heat recovery they should have a heating and cooling setpoint in their controller.
    All the chiller I know just need a permission to run and will automatically do the...
  17. Replies
    19
    Views
    1,939

    It's for head pressure control. Instead of...

    It's for head pressure control. Instead of cycling the fan, you reduce airflow.
    When head pressure raise you open the damper.
    If it drop damper close
  18. I don't know if such guide exist. You need help...

    I don't know if such guide exist.
    You need help figuring something?
  19. Replies
    8
    Views
    877

    How many compressor per circuit? If you want...

    How many compressor per circuit?

    If you want to get the data needed take the same reading at 100% on all circuit.
    With water temp.
    Have you read the manual about oil return procedure?
  20. Replies
    8
    Views
    877

    How do you know you need refrigerant? I only...

    How do you know you need refrigerant?

    I only see part of the data needed to arrive to that answer.

    Put some meat on the bone if you want help.

    No offense meant but I'm wondering how often...
  21. Superheat is a good start. What is the net oil...

    Superheat is a good start.
    What is the net oil pressure?
    Is it intermittent? (transducer on the service valve. Don't completely close the valve)
    This is a recip compressor I believe. More detail...
  22. Replies
    30
    Views
    1,552

    That is a great idea. Maybe you can ask Emerson...

    That is a great idea.
    Maybe you can ask Emerson for guidance or check there bulletin.
    If it's a scrool be advised that the one for vfd have been modified to help the lubrification for both...
  23. Replies
    30
    Views
    1,552

    You told us previously that you had some...

    You told us previously that you had some electrical background.

    There is more than electrical that you'll need to think of.

    Your main concern as the system as not been designed for variable...
  24. Replies
    20
    Views
    1,233

    Where is chilly We haven't heard back from him?

    Where is chilly

    We haven't heard back from him?
  25. Replies
    11
    Views
    1,435

    We started to try Wd 40 ptfe dry lube. It...

    We started to try
    Wd 40 ptfe dry lube.
    It won't collect dust and don't smell to much.
    Will see if it pass the test of time

    You could go for a graphite spray. But be advised it's messy
  26. Replies
    11
    Views
    1,435

    We started to try Wd 40 ptfe dry lube. It...

    We started to try
    Wd 40 ptfe dry lube.
    It won't collect dust and don't smell to much.

    You could go for a graphite spray. But be advised it's messy

    Will see if it pass the test of time
  27. Replies
    20
    Views
    1,233

    Before adding or removing gas. Take all the...

    Before adding or removing gas.
    Take all the other numbers.
    It will help you figure out the problem
  28. Replies
    20
    Views
    1,233

    You probably have a hot gas bypass feeding on...

    You probably have a hot gas bypass feeding on suction side. That may explain why pressure jump up and down.

    Is the unit undercharged?

    At that ambiant temp you should not be feeding with hot gas.
  29. Replies
    20
    Views
    1,233

    More detail will help. Is it recirculating air...

    More detail will help.
    Is it recirculating air or 100% fresh air.

    What is the td
    Suction pressure
    Discharge pressure
    Suct line temp
    Liquid line temp
    Taken at full load
  30. Thread: Oil Chillers

    by patpinet
    Replies
    2
    Views
    413

    Refrigeration when you think about it is all the...

    Refrigeration when you think about it is all the same.

    Superheat will always be superheat 12-20 F close to operating temp is good.
    I'm assuming you have a small type of chiller if you don't have...
  31. Replies
    13
    Views
    2,130

    If you call a technician he should have the...

    If you call a technician he should have the technician password
  32. Replies
    15
    Views
    1,234

    I didn't know that aaon where using Toshiba vfd. ...

    I didn't know that aaon where using Toshiba vfd.

    New setup or older stuff?
  33. Just saying. Vdc =temp in celsius not F ...

    Just saying. Vdc =temp in celsius not F

    Depending on how much offset you have. At some point its no good to recalibrate. Let say above 5 f
    I believe recalibration is done at startup or as fine...
  34. Replies
    15
    Views
    1,234

    The question was asked mostly because I'm...

    The question was asked mostly because I'm curious. I did learn about the Siemens bt300 that I haven't seen on our side of town.

    Everybody has something they like about a particular type of drive....
  35. Replies
    15
    Views
    1,234

    Funny honeywell smart vfd look a lot like the...

    Funny honeywell smart vfd look a lot like the Siemens bt300 Mpeterson21 told us about.

    Hard to say because we haven't tried any of those 2 model
  36. Replies
    15
    Views
    1,234

    Didn't know that all option board where all on...

    Didn't know that all option board where all on board..
    Siemens are reliable?

    Will definitely look to get some more info on those drive..

    Our office use a lot of yaskawa a1000 easy to copy...
  37. Replies
    15
    Views
    1,234

    Favorite brand of vfd

    Hi

    What is your favorite brand of drive.

    Why?
  38. Replies
    5
    Views
    794

    Low pressure is reverse operation and need to be...

    Low pressure is reverse operation and need to be open to show as good?
    NC contact might be for alarm
  39. Replies
    18
    Views
    1,756

    Is the VCCX2 bacnet ready or you still need a...

    Is the VCCX2 bacnet ready or you still need a fieldserver control in between.

    In the older style board a external comm board was needed
  40. Hi Augusto, Is it a 30hr chiller. Old...

    Hi Augusto,

    Is it a 30hr chiller.
    Old mechanical recip type chiller?
    In the manual the B stand for r134a

    You can find it by googling carrier 30hr.
    If you have access to a cell phone with...
  41. Replies
    3
    Views
    1,093

    Reclaim refrigerant that as migrated to the roof...

    Reclaim refrigerant that as migrated to the roof on a cold day?
  42. Thread: Not Sure Why

    by patpinet
    Replies
    9
    Views
    2,286

    Sure enough that for a heat pump. The guy didn't...

    Sure enough that for a heat pump. The guy didn't have biflow dryer so he decided to put in two standard dryer and just flipped one with the arrow pointing at the condensor
  43. Replies
    18
    Views
    1,648

    Water temp will let's us see if he as some high...

    Water temp will let's us see if he as some high load on the evap (he got a high Suct sat temp)
    With high TD we could see if flow is good or not.

    Partial number lead only to partial or wrong...
  44. Replies
    18
    Views
    1,648

    Google is telling me that 38ak is a split...

    Google is telling me that 38ak is a split condensor. Not a chiller
    Is Google right? Just trying to figure out on what your working.
    How long of pipe do you have to the condensor.
    What is water...
  45. Replies
    8
    Views
    640

    Not yet this is only a small part of a bigger...

    Not yet this is only a small part of a bigger project.
    Should be done in May.
  46. One thing that I see Is the fan coil closest to...

    One thing that I see Is the fan coil closest to the supply is the last on the return. It make sense to "balance" the flow at each coil

    Why have they went so high with the return I don't know.
  47. Replies
    8
    Views
    640

    Thanks

    Thanks
  48. Replies
    8
    Views
    640

    Open upc was factory installed. We want to do a...

    Open upc was factory installed.
    We want to do a integration from what I heard there is a automapping feature that grab 50 point.
    Is that right
  49. Replies
    8
    Views
    640

    So now I have a carrier network tool

    We need to integrate a 30hx chiller thru bacnet thru a open upc module.Looking at some older post I see there's a automapping feature that need to be disabled.And I manually enable the point I want ...
  50. Replies
    26
    Views
    1,503

    Have any of you tested win 10 with all those...

    Have any of you tested win 10 with all those software from the manufacturer that make our life easier.
    Like trane techview.
    Vfd software
    Turbocor software
    Any other software you can think off....
Results 1 to 50 of 305
Page 1 of 7 1 2 3 4