Search:

Type: Posts; User: SouthTex

Page 1 of 5 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    3
    Views
    328

    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
  2. 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...
  3. Thread: IT room A/C

    by SouthTex
    Replies
    17
    Views
    661

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

    had a room like that installed a mini above the door
  4. Replies
    5
    Views
    319

    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.
  5. 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...
  6. Replies
    12
    Views
    1,048

    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
  7. Replies
    41
    Views
    4,498

    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...
  8. Replies
    8
    Views
    508

    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...
  9. Replies
    16
    Views
    954

    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
  10. 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
  11. Replies
    7
    Views
    1,028

    Cooper sh66

    Cooper sh66
  12. Replies
    7
    Views
    823

    replace the damper in the basement with a...

    replace the damper in the basement with a motorized damper and give them a switch
  13. 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
  14. Replies
    3
    Views
    538

    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
  15. Replies
    3
    Views
    634

    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.
  16. Replies
    22
    Views
    1,776

    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
  17. Replies
    22
    Views
    1,776

    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.
  18. 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...
  19. Replies
    19
    Views
    2,028

    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
  20. Replies
    26
    Views
    2,405

    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...
  21. Thread: Temp meters.

    by SouthTex
    Replies
    15
    Views
    2,094

    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...
  22. Replies
    24
    Views
    2,665

    Dumb question but have you tried reversing the...

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

    by SouthTex
    Replies
    20
    Views
    2,346

    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...
  24. 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
  25. 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...
  26. Replies
    8
    Views
    856

    Run a PT check

    Run a PT check
  27. Replies
    12
    Views
    2,110

    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...
  28. Replies
    7
    Views
    956

    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
  29. Replies
    13
    Views
    1,370

    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...
  30. Replies
    9
    Views
    1,199

    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
  31. 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.
  32. Replies
    22
    Views
    4,644

    Save inventory and carry only the 440

    Save inventory and carry only the 440
  33. Replies
    6
    Views
    945

    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?
  34. Replies
    6
    Views
    945

    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.
  35. Replies
    6
    Views
    945

    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...
  36. Replies
    9
    Views
    919

    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
  37. Replies
    5
    Views
    741

    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.
  38. Replies
    74
    Views
    9,357

    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
  39. Replies
    9
    Views
    1,481

    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...
  40. Replies
    16
    Views
    1,027

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

    You may also look at your grill selection, hvs type grills seem to work better
  41. Replies
    13
    Views
    1,943

    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.
  42. 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.
  43. Thread: Tricky one

    by SouthTex
    Replies
    18
    Views
    2,056

    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
  44. Replies
    6
    Views
    721

    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...
  45. Replies
    13
    Views
    1,623

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

    Why I like the digital gauges all the imformation is built in
  46. Replies
    16
    Views
    1,600

    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
  47. Replies
    4
    Views
    1,016

    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. ...
  48. Replies
    9
    Views
    952

    crankcase heater will keep the liquid refrigerant...

    crankcase heater will keep the liquid refrigerant out of the crankcase but will do nothing to keep large amounts of refrigerant from slugging that has accumulated in the coil or in the lineset. I...
  49. Replies
    6
    Views
    1,000

    Recently picked one up at Home Depot called the...

    Recently picked one up at Home Depot called the whistler for under a hundred. First day out found 2 dirty evap coils going thru the high limit, of furnaces paid for itself right then and there.
  50. Don't forget checking the temp drop accross the...

    Don't forget checking the temp drop accross the indoor coil, I have seen units that have the correct subcooling / superheat but still have a low temp drop.
Results 1 to 50 of 234
Page 1 of 5 1 2 3 4

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards