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  1. Thread: FIRST FOR ME

    by SouthTex
    Replies
    9
    Views
    946

    Ditto

    Ditto
  2. Just retired from this company. It's a great...

    Just retired from this company. It's a great place to work. Have had an association with them since 1989 and would recommend them to anyone who wants to do a good job and is honest. Their pay is...
  3. Replies
    3
    Views
    562

    I never take the chance that there might not be a...

    I never take the chance that there might not be a schrader in the port. Unless there is no refrigerant in the system I will always use a swival tee on another port that I know has a schrader
  4. Replies
    3
    Views
    578

    if the existing exhaust fan is 240 volt install a...

    if the existing exhaust fan is 240 volt install a relay for the exhaust fan the will energize it when there is a call for the fanof the rtu
  5. Replies
    10
    Views
    1,264

    Think about it you are measuring the amount of...

    Think about it you are measuring the amount of subcooling on the liquid line to make sure you are sending a solid column of liquid to the txv. But remember your gauge also needs to be hooked up to...
  6. Thread: IT room A/C

    by SouthTex
    Replies
    17
    Views
    1,660

    had a room like that installed a mini above the...

    had a room like that installed a mini above the door
  7. Replies
    5
    Views
    760

    I have mostly seen the trips during mild weather...

    I have mostly seen the trips during mild weather in the heat mode, have installed mild weather kit and problem goes away.
  8. I agree probally 1 or more of the cap tubes not...

    I agree probally 1 or more of the cap tubes not feeding. the tubes that are feeding are probally overfeeding causing the low sh. Disable your blower and let the unit run you should be able to tell...
  9. Replies
    12
    Views
    1,853

    install a mild weather kit, cycle the outdoor fan...

    install a mild weather kit, cycle the outdoor fan in the heat mode to lower the suction psi which should lower the head
  10. Replies
    41
    Views
    9,163

    It's the same as the 550 less the temp clamps. ...

    It's the same as the 550 less the temp clamps. I've had my 550 for 4 years, have had to replace the temp probes once. Have never had a regular manifold stand up as well as these and I use them on...
  11. Replies
    8
    Views
    1,070

    better to use a tandem set up, a regular 72,000...

    better to use a tandem set up, a regular 72,000 normally will not work as the oil sumps must be connected with a seperate line. If someone has already changed them maybe they got it wrong. It may...
  12. Replies
    16
    Views
    1,784

    if there is room install a swival tee with new...

    if there is room install a swival tee with new schraders in the tee's
  13. I like the idea, remember it can work both ways. ...

    I like the idea, remember it can work both ways. You can evaluate them at the same time
  14. Replies
    7
    Views
    1,485

    Cooper sh66

    Cooper sh66
  15. Replies
    7
    Views
    1,363

    replace the damper in the basement with a...

    replace the damper in the basement with a motorized damper and give them a switch
  16. Do an isolation, I have seen H10 pick up a leak...

    Do an isolation, I have seen H10 pick up a leak from clorine that utilities inject into water systems from a water fountain
  17. Replies
    3
    Views
    722

    the indoor coil is the condenser in the winter,...

    the indoor coil is the condenser in the winter, and normally it is not as large as the outdoor coil
  18. Replies
    3
    Views
    785

    check your preasure drop accross your condenser,...

    check your preasure drop accross your condenser, you may find that is where your problem is. Have seen this before and had to use a line tap on the condenser outlet to find it.
  19. Replies
    22
    Views
    2,750

    Never saw a copper spun muffler and being it...

    Never saw a copper spun muffler and being it sounds as tho it is on the outlet of the condenser coil it's probally a drier
  20. Replies
    22
    Views
    2,750

    who is the mfg. You said they sent a drier for a...

    who is the mfg. You said they sent a drier for a straight condenser. York put driers on the compressor discharge line on their heat pumps some years back.
  21. with high superheat, low head, and low suction it...

    with high superheat, low head, and low suction it sounds as tho you may still be low on refrigerant especially with a fixed metering device. Would need to know what your subcooling is along with a...
  22. Replies
    19
    Views
    2,742

    FYI when I only have one good condenser motor out...

    FYI when I only have one good condenser motor out of 2 and there is no baffel between them I cover the dead ones opening will make a difference on trying to keep the head psi down
  23. Replies
    26
    Views
    3,642

    if you have it overcharged by 2 pounds you...

    if you have it overcharged by 2 pounds you probally need to get it out or you may loose the compressor especially with a fixed orfice. Rule of thumb if you have low superheat adding refrigerant will...
  24. Thread: Temp meters.

    by SouthTex
    Replies
    15
    Views
    2,895

    I have used the Cooper Atkins SRH 77A for years,...

    I have used the Cooper Atkins SRH 77A for years, have no issues with calibration and I check it from time to time. it is great for a/c work for splits and if you need humidity readings. Also does...
  25. Replies
    24
    Views
    3,753

    Dumb question but have you tried reversing the...

    Dumb question but have you tried reversing the rotation on the compressor?
  26. Thread: Heat Pump TXV

    by SouthTex
    Replies
    20
    Views
    3,239

    With a 65 outdoor and a 74 indoor I would expect...

    With a 65 outdoor and a 74 indoor I would expect to see high preasures. Try running the unit in the heat mode and disable the outdoor fan. The outdoor txv should lower the suction preasure which...
  27. Read your incoming power and make sure the right...

    Read your incoming power and make sure the right voltage tap is being used, if it is set for 240 and you only have 208 your secondary voltage will be too low and will cause this issue see it alot
  28. ACCA-SA South Texas Trade Show January 15th

    The San Antonio Chapter of ACCA has it's Trade show coming up this Wednesday. There will be seminars for both owners/principals and techs. Ruth King will be the keynote speaker. The vender fair...
  29. Replies
    8
    Views
    992

    Run a PT check

    Run a PT check
  30. Replies
    12
    Views
    3,359

    If it's a small area realitive to the size of the...

    If it's a small area realitive to the size of the system we have used the ZoneX damper systems and seems to work fairly well. They have a modulating damper with a sensor in the supply air to help...
  31. Replies
    7
    Views
    1,294

    New pan if available(with no warranty on existing...

    New pan if available(with no warranty on existing coil) and give them an option for a new pcoil with warranty
  32. Replies
    13
    Views
    1,650

    Had one years ago on a GE package heat pump. ...

    Had one years ago on a GE package heat pump. Intermitten restriction, 4 companies looked at along with factory rep would not happen on a regular basis. Finally got it to act up, cut tubing and...
  33. Replies
    9
    Views
    1,666

    What was your voltage accross the capacitor while...

    What was your voltage accross the capacitor while it was running, you may find 370 is ok
  34. Old school we still have alot of the Lennox Zone...

    Old school we still have alot of the Lennox Zone masters in place, have some condensers with 8 ahu's connected to a 15 ton system.
    Lennox had a version for the residential market.
  35. Replies
    22
    Views
    10,218

    Save inventory and carry only the 440

    Save inventory and carry only the 440
  36. Replies
    6
    Views
    1,214

    Will give it a try, but out of coursity how did...

    Will give it a try, but out of coursity how did you find this as the issue?
  37. Replies
    6
    Views
    1,214

    Older job sites installed by others, wiring looks...

    Older job sites installed by others, wiring looks great and no issues with other 10 units at each site. I assume the tracker system is used to report and send set points to the onboard controller.
  38. Replies
    6
    Views
    1,214

    Reliatel controls issue

    Have a Trane Model YHC 102A4RLA2GD0B/Serial 638100715l with reliatel controls on a tracker system with a 3 wire zone sensor. Tracker showing -67 degrees space temp and the cool not operating. Check...
  39. Replies
    9
    Views
    1,244

    Are you using stamped faced grills? Bar type...

    Are you using stamped faced grills? Bar type grills have less of a noise issue normally, less restrictive
  40. Replies
    5
    Views
    910

    Head psi seems high check for a restriction maybe...

    Head psi seems high check for a restriction maybe some one has over charged it to get the suction up. Really need to know superheat and subcooling and temp drop accross the evap.
  41. Replies
    74
    Views
    11,747

    Agree only might want to use unions to make it...

    Agree only might want to use unions to make it easier the next time and there will be a next time to access it
  42. Replies
    9
    Views
    1,741

    Try going a little more south to San Antonio,...

    Try going a little more south to San Antonio, plenty of work and all the good firms are looking for good people. Cost of living is less and you don't have as many traffic issues to deal with. I...
  43. Replies
    16
    Views
    1,194

    You may also look at your grill selection, hvs...

    You may also look at your grill selection, hvs type grills seem to work better
  44. Replies
    13
    Views
    2,786

    Most pkg units have multi tap transformers 208 or...

    Most pkg units have multi tap transformers 208 or 230. Make sure its tapped for 208 with the voltage you are reading. I normally see 26 or 27 when transformer is tapped properly.
  45. The device you are looking for is called a...

    The device you are looking for is called a helper, they normally are just out of trade school and don't stay long, they just don't build them like they used to.
  46. Thread: Tricky one

    by SouthTex
    Replies
    18
    Views
    2,476

    take some temp readings on your return bends of...

    take some temp readings on your return bends of the evap, you may have a restriction and some one has overcharged it and is overfeeding on the unrestricted areas of the coil
  47. Replies
    6
    Views
    851

    forget the indoor temp if you are looking for...

    forget the indoor temp if you are looking for evap load in the heat mode, the condenser is now the evap. Have found in years past on some units we would cycle the outdoor fan in the heat mode by...
  48. Replies
    13
    Views
    1,948

    Why I like the digital gauges all the imformation...

    Why I like the digital gauges all the imformation is built in
  49. Replies
    16
    Views
    1,862

    sometimes alignment of the puller can be a...

    sometimes alignment of the puller can be a problem, on 1/2" shafts put a copper coupling on the shaft of the motor, sure makes it easier
  50. Replies
    4
    Views
    1,353

    If it has a multi tap transformer make sure it is...

    If it has a multi tap transformer make sure it is on the right tap. Have seen where they are taped for 230 volt and there is 208 being supplied. Will make a difference when the contactors pull in. ...
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