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Type: Posts; User: fool4school

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  1. Replies
    283
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    30,012

    Several "issues " and then some

    I would address the gas pressure and and train not having union, drip leg,or gas cock are code violations to start with...
  2. Replies
    63
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    8,420

    Can you tell the liquied level by the frost line...

    Can you tell the liquied level by the frost line on the reciver???:whistle:
  3. Replies
    9
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    668

    I am a level 1 tech, I have the level 2 book just...

    I am a level 1 tech, I have the level 2 book just havent goten around to taking the test. The material seems a little dated lots of r-12 and R-502 references, Great monthly magazine with alot of good...
  4. Replies
    31
    Views
    3,442

    This is why I use the old needle indicater termal...

    This is why I use the old needle indicater termal myself. I always pull a deep vac down to 500 microns on the gagues first before I open it to the system to make sure I dont have a leak on the...
  5. High head press. and getting higher !!

    Got a custumer with a 410 heat pump, The head press. is getting way to high and causing the high press. switch to open around 650-675 PSI. 40 degree subcooling 2-4/ degree superheat/ I am leaning to...
  6. Replies
    8
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    1,755

    I work on a Dunham Bush that is between 25-30 yrs...

    I work on a Dunham Bush that is between 25-30 yrs old that starts 3 phase
    with the in coming power switches from delta to wye. on start up. Think that is dose start the widings seperatly
  7. Replies
    15
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    2,831

    Subcooling is the temp. cooled down after a...

    Subcooling is the temp. cooled down after a change of state has happened and to make sure the metering device has a soild collum of liquid is feedin it. The outside aor could make the sc high if it...
  8. Replies
    7
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    690

    CLeaning of the sreening ??

    WHat is best to clean a TXV screen ??? I have heard everything from lighter fluid to starting fluid ?? Is there a standered used in the feild ??:gah:
  9. Replies
    28
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    2,732

    This is also why you need a off-cycle defrost to...

    This is also why you need a off-cycle defrost to allow the box to defrost its self out, @ lest 2x in 24 HRS. every 12 hrs
  10. Replies
    9
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    2,469

    Thanks for the PFD it is good info Attached Files...

    Thanks for the PFD it is good info Attached Files Evap_Icing_HTPG_2010-01-25.pdf (927
    WHat is the best way to adjust a door gasket ?? I already have a new on in place but it is alowing alot of air...
  11. Replies
    9
    Views
    2,469

    Fog in the walk-in freezer

    Ok.. First post I have done so here it is.
    I have a walk-in freezer that has frost building up ice on the roof of the box. Also it is blowing fog all threw the box. The box stays @ -15 Degrees but,...
  12. Replies
    69
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    6,970

    Goodman has got a lot better over the years I...

    Goodman has got a lot better over the years I think, There cabinet fram is weak as all get out still and the warrenty is good. BUt the componets are just as good as any
  13. Its a good thing you only ran it for a short...

    Its a good thing you only ran it for a short time, If the 410A would of reach its running higher pressure you "could" of blown out a line !! Old R-22 units were not designed to operate @ that high of...
  14. Replies
    24
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    10,739

    I have heard that "rule of thumb" before about...

    I have heard that "rule of thumb" before about you can go .5 ton bigger on the inside but, You will never get you seer rating with a mis-mached system and will prob. shorten the life on the...
  15. Replies
    17
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    1,723

    :angel:Never trust a unit service swith...

    :angel:Never trust a unit service swith either.... or that the water is off, or the king valve is off either !!!!
  16. Thread: Bad Valves

    by fool4school
    Replies
    25
    Views
    2,876

    Copeland says 20-40 for comprs. SH. the icinig...

    Copeland says 20-40 for comprs. SH. the icinig with a high sh may be a charge problem. AMP draw would be low with no load. if unit will not pump down and stay low it is the valves leaking threw...
  17. Replies
    14
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    3,248

    Is this a "Back in the day "Install ???

    Is this a "Back in the day "Install ???
  18. I always thought that this units were made to be...

    I always thought that this units were made to be "Throw away units" Units are no good untill 75 degrees outside temps. and once there dead they are dead. Most have duel shaft motors and are very hard...
  19. Replies
    12
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    847

    Can you install a vibration eleminator to the...

    Can you install a vibration eleminator to the duct work??
  20. Replies
    15
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    3,716

    What is the General alowed time frame to finish a...

    What is the General alowed time frame to finish a Clean and Check/ PM that is a mile and a half long !!!???
  21. Replies
    9
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    733

    I LOVE training and Education BUT..... You can...

    I LOVE training and Education BUT..... You can not teach of learn Experience and you never quit learing in this feild. The books show nice neat pics. and the real world is not a 'nice neat place" !!!...
  22. Replies
    22
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    1,922

    CHeck the drain line for clogg. Purge with...

    CHeck the drain line for clogg. Purge with Nitrogen. Install a "bar" or stick of steel in the back of the coil to make a "wedge". I wouldnt trust the " Factory pitch " that comes with it.
  23. :whistle:With some mini-splits you can have...

    :whistle:With some mini-splits you can have difer. Locations or the indoor coil and 1 location or the out door coil. I would go with the split or better preformance and save some dough on the front...
  24. Replies
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    5,840

    I belive its is "The Curse of sin on ALL MANKIND"...

    I belive its is "The Curse of sin on ALL MANKIND" not just the USA. The Bible talks of earthquakes in Divers Places, Nation VS, Nation, and states this is the start of Birth pains. We have seen...
  25. Replies
    111
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    7,652

    3.88 for unleaded.. 3.99 2 days ago .... That...

    3.88 for unleaded.. 3.99 2 days ago .... That Change is gona come.... RIGHT ...
  26. Sticky: Hello all I am a HVACR Tech in the feild for...

    Hello all I am a HVACR Tech in the feild for 12-13 years. Looking for help and good info in this feild and advice as well. Have knowledge and always lookings for more. Work @ a school distrct as an...
  27. Replies
    12
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    715

    whats the oil press??

    whats the oil press??
  28. Replies
    8
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    724

    Can you check the temps on each head?? a Cold...

    Can you check the temps on each head?? a Cold head could not be running?? Is there unloaders on the compressor??
  29. Replies
    6
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    1,681

    I work on a RTAA140 and the book I have covers...

    I work on a RTAA140 and the book I have covers 130-400 tons. Code 412 has a 1U1 1U2
    The 1u1 module has lost inter-processor communacation from 1U2. I have found that this unit is very "touchy" and...
  30. Replies
    29
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    3,963

    What is the super heat?? WHat is the compressor??...

    What is the super heat?? WHat is the compressor?? Is the Evap. cLEAN ?? May need to lower the low press. cut out set point for lower Sat, and prevent condensing in the evap. on a off cycle..
  31. Replies
    3
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    675

    @ 500 microns it boils off moisture in the system...

    @ 500 microns it boils off moisture in the system and removes noncondensables. It should stay @ 500 for @ least a hour.
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