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  1. Replies
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    151

    Aaon finally got back to be and it's a P75310 ...

    Aaon finally got back to be and it's a
    P75310 PULLEY 1VP 68 X if anybody wanted to know.
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    151

    AAON Belt sheeve for rk unit

    Does anybody know off hand what belt sheeve is used for the AAON rx series? The belt that is used is a BX68. I called AAON and after sitting on holg for 20 min I gave up!! AAON has the worst ...
  3. yep installed new drier and used a rag too cool...

    yep installed new drier and used a rag too cool down. Going to try your method now and will let you what I find.
  4. Yes there are two 30ton aaon systems.

    Yes there are two 30ton aaon systems.
  5. I didn't mention how this all started or why im...

    I didn't mention how this all started or why im now charging this system. This is a 30 ton Aaon system with four compressors and 3 of the 4 compressors are working just fine and one was left in a...
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    195

    Cap tube question

    Was reading JB manual on cap tube and was wondering is the length and diameter of a cap tube engineered to both system capacity and refrigerant used or is it not dependant on the system? cause manual...
  7. system has delay on make/ break so I went from...

    system has delay on make/ break so I went from 24volt side of contractor to low pressure switch and all the comp turned off so I pushed contactor to get compressor running so I could see pressures...
  8. No solenoid valve

    No solenoid valve
  9. Total charge is 12 pounds. 200oz. Forgot to add...

    Total charge is 12 pounds. 200oz. Forgot to add that when I take off the hose from suction line its still pulls a vacuum after the 9 pounds were added to suction side
  10. I thought that as well but I pushed nitrogen...

    I thought that as well but I pushed nitrogen though both sides the day before.
  11. Can someone explain how I just charged a sysytem with 12pounds of 22 and

    Suction side is still in a vaccum and discharge side is at 145 psi? I working on a AAON system 30 ton with 4 compressers. I was able to get 3 pounds of liquid in the discharge side before charginging...
  12. Can someone explain this on a vacuum reading

    I am vacuuming down a ice o matic ice machine and have just replaced the filter dryer and now in the process of pulling down a vacuum. After I shut the pump down the micron reading keeps dropping...
  13. Replies
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    1,897

    sounds like a staraved evap

    sounds like a staraved evap
  14. Just like if you leave a bottle refrigerant in a...

    Just like if you leave a bottle refrigerant in a hot vehicle the pressure increases because heat was added if I take it out and put it in a cooler place the pressure lowers I've just reduce the heat.
  15. Also if you remove heat or add heat you have...

    Also if you remove heat or add heat you have changed boiling point unless in looking at this wrong as well.
  16. I am having a debate at work on how the boiling temp of a liquid be changed

    One person is saying apply more heat or remove heat. Im saying change the pressure on the liquid. Can someone help close out this silly debate please.
  17. Replies
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    53,271

    It's places that don't allow the tech to do it...

    It's places that don't allow the tech to do it right that has the most calls backs and they loose the most money.
  18. Replies
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    716

    Hotels and other apt buildings. They are out...

    Hotels and other apt buildings. They are out there. Ptac units. Not talking about the units you buy at stores.
  19. Replies
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    716

    . That's is what the instructor was saying...

    .

    That's is what the instructor was saying as well.
  20. Replies
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    716

    Small section on why a two speed. Stumped you too...

    Small section on why a two speed. Stumped you too I see.
  21. Replies
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    716

    Window uint question

    Took a class last night and the topic was on room ac window units and the question that has been bothering me was is “what is the use of the two speed motor used for on the room ac unit? The answers...
  22. I always use old analog when doing a vacuum.

    I always use old analog when doing a vacuum.
  23. Yep. It is what was pulled out of the system and...

    Yep. It is what was pulled out of the system and still there is oil in system so I was calculating all of that.
  24. Replies
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    872

    Same here on r-422d on the carrier roof top

    Same here on r-422d on the carrier roof top
  25. How bad would the fractionzation be with hot sot mixed with r-12

    Fridge needs 14oz of r-12 and have 2 oz and wanted to use hotshot to make up the differance. I know I will still get cooling effect but want to know how this is going to effect system operation with...
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