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Type: Posts; User: Obijuan83; Keyword(s):

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  1. Replies
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    I can't understand what you meaning. I follow the...

    I can't understand what you meaning. I follow the flow on the condenser tubes and the refrigerant goes from top to bottom as it should, no down an up as you say.
  2. Replies
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    Finally the problem was poor vacuum. I did a...

    Finally the problem was poor vacuum.

    I did a proper vacuum procedure and now I have the following readings.

    35 C Inlet Condenser Temp (that means 200 psig)
    31C Outlet Condenser temp /Filter...
  3. Replies
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    I tend to believe that my problem is not proper...

    I tend to believe that my problem is not proper vacuum.

    I pulled a vacuum only for 45min and when I charged via the high pressure, the hose connected to r404a bottle was empty an full of air....
  4. Replies
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    I can understand that at these ambient...

    I can understand that at these ambient temperatures, 28-30 C , and temperature before condenser 48C, the SS seems to be overcharged.

    But, when I cool down the liquid line to 32 C before condenser...
  5. Replies
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    I used a second probe and got the following...

    I used a second probe and got the following results.

    48 C Inlet Condenser Temp (that means 315 psig)
    38 C Outlet Condenser temp /Filter temp

    (-10C Delta)

    28 C Ambient temp
    38 C Exhaust Air...
  6. Replies
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    9,484

    I dont understand what you mean that its not...

    I dont understand what you mean that its not condenser but its evaporator HX,what is the problem with the piping?
  7. Replies
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    What do you mean? The cap tube that is wrapped...

    What do you mean? The cap tube that is wrapped around flexible suction line?

    If you mean that as evaporator heat exchange I would also like to ask if its better to wrapped it at contact to the...
  8. Replies
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    9,484

    To be honest I pulled a vacuum but only for...

    To be honest I pulled a vacuum but only for 45min. The low side gauge was at -30, not going any further. But i think that I did not fill the yellow hose with refridgerant when added the refridgerant,...
  9. Replies
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    9,484

    Ambient temp is 29-30C High side pressure before...

    Ambient temp is 29-30C
    High side pressure before desuperheater is 180psi
    Refridgerant temp before desuperheater is 20 C
    Evaporator temp is 47.5 C

    The condenser was not used, I mean no fan was...
  10. Replies
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    9,484

    Its difficult to measure low pressure atm but...

    Its difficult to measure low pressure atm but what makes you think that there is problem with valveplate? When I cooled enough the refridgerant at 175-180psi the evaporator temps are better (-47.5 C)...
  11. Replies
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    9,484

    Here in Greece the outside temps are 37-40C but...

    Here in Greece the outside temps are 37-40C but we try to keep lower temps inside home!

    Propably the Condenser isn't that efficient at that ambient temps ~30 C but my question is when I use the...
  12. Replies
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    9,484

    Ambient temperature doesn't matters?

    Ambient temperature doesn't matters?
  13. Replies
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    9,484

    I asked if its undercharged at the situation with...

    I asked if its undercharged at the situation with the added cooling.

    The head pressure its only 180psi /32C and the suction doesn't freeze.

    The cap tube is about 12 feet long and 0.031"
  14. Replies
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    9,484

    Βecause of high ambient temps (37 C) and room...

    Βecause of high ambient temps (37 C) and room temperature (30 C) efficiency of Single Stage suffers.

    Without load idles at -32.5 C
    High Pressure at 275psi / 48 C

    Suction freezes till...
  15. Replies
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    Thank you, my next goal is to make a new...

    Thank you, my next goal is to make a new evaporator and new mounting clip
  16. Replies
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    Building my first Single Stage

    After 10 years of inactivity I decided to come back.

    I had an old Single Stage made by "Unseen" in the basement that was not working any more because of a leak.

    I decided to try building my own...
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