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  1. Thread: 1975 start up

    by mgibbs
    Replies
    29
    Views
    2,764

    I still have some pcvs but no more ctvs. Lots of...

    I still have some pcvs but no more ctvs. Lots of cvhas and a few cvhbs on 113
  2. Replies
    23
    Views
    1,224

    I'm sure they do. But unlike a lot of sellers on...

    I'm sure they do. But unlike a lot of sellers on eBay they have warranties and accept returns.
  3. Replies
    23
    Views
    1,224

    Refurbished Computers

    I would probably shy away from getting one on eBay. Stick with companies like newegg, microcenter, and tiger direct. All have lots of options on new and refurbed laptops. If it's for in the field I...
  4. Replies
    43
    Views
    2,778

    Does my Accumilator need a heater ?

    I was told they are more susceptible to cracking. But he could have been full of it.
    http://www.rses.org/assets/journal/9811-MSAC_Hotline.pdf
  5. Replies
    43
    Views
    2,778

    I like that they used 45s. I was taught to never...

    I like that they used 45s. I was taught to never use 45s.
  6. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    I'll have to check hvac pro to remember if it can...

    I'll have to check hvac pro to remember if it can be setup for 10k. I don't think so but I've been wrong before. I just always use 1k nickel on jci controllers w a few exceptions.
  7. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    A unt would see 10k ohms as open and read 250.

    A unt would see 10k ohms as open and read 250.
  8. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    That's the problem. Wrong sensor. Need a 1k nickle

    That's the problem. Wrong sensor. Need a 1k nickle
  9. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    Put a jumper from ai1 to ai common and look to...

    Put a jumper from ai1 to ai common and look to see if reading changes
  10. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    Metasys UNT

    It could be programmed to any of the inputs. You would have to upload the unt with hvac pro to look at it or change the analog input
  11. Thread: Metasys UNT

    by mgibbs
    Replies
    18
    Views
    1,077

    Metasys UNT

    You can move it say from analog input 1 to 2 but you will have to change the programming in the unt and front end to see it. Try hooking the sensor directly to the correct input without any wiring...
  12. Thread: Ruud uarl048jec

    by mgibbs
    Replies
    1
    Views
    314

    Ruud uarl048jec

    Does anyone have the service manual for a Ruud uarl-048jec. My neighbor is having some problems after a storm and the unit is giving a "high line voltage" diagnostic code. I'm measuring 245vac at the...
  13. Thread: carrier sizing

    by mgibbs
    Replies
    3
    Views
    590

    carrier sizing

    He's right and your wrong.
    Carrier model numbers work like this
    48tjd004 =3ton
    005=4ton
    006=5ton
  14. Replies
    1
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    396

    http://dms.hvacpartners.com/docs/1005/Public/02/30...

    http://dms.hvacpartners.com/docs/1005/Public/02/30_48_50-1SI.pdf
  15. Replies
    16
    Views
    1,131

    What are the temps inside. Return air db, wb and...

    What are the temps inside. Return air db, wb and supply
  16. Replies
    35
    Views
    2,580

    All the goodman manufacturing facilities I see in...

    All the goodman manufacturing facilities I see in Houston have had their signs replaced with Daikin signage.
  17. Replies
    0
    Views
    1,334

    I cant believe it works

    My neighbor wanted me to look at his system and see why it doesn't cool well in summer. So I go over and look at duct work first.. Get my maagnahelic out and start checking, the TESP was 2.6" ...
  18. Replies
    3
    Views
    698

    Had that happen before. Ended up replacing a...

    Had that happen before. Ended up replacing a bunch of motors and compressors and installing phase monitors.
  19. Replies
    14
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    2,610

    At least he's working under a license. Better...

    At least he's working under a license. Better than a unlicensed hack in a nice truck.
  20. Thread: Powermax 600

    by mgibbs
    Replies
    2
    Views
    685

    Powermax 600

    A customer was cleaning out their work shop and gave me a bunch of hvac tools they don't use anymore. They don't have an in house tech anymore. One of the things they gave me was a almost new thermal...
  21. Yes you can. But why would you want to?

    Yes you can. But why would you want to?
  22. 600's are 460 3 phase 500's are 230 3 phase...

    600's are 460 3 phase
    500's are 230 3 phase
    300's are 230 single phase
    100'S are 575 3 phase
  23. Replies
    24
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    2,169

    We always have our customers use Firefox. We've...

    We always have our customers use Firefox. We've had too many problems with Internet explorer not working.
  24. Replies
    24
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    2,169

    We have had at least a dozen customers call for...

    We have had at least a dozen customers call for the same thing in the past week. We deleted java and manually installed older version.
  25. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    I'll write it up again. Doubt customer is gonna...

    I'll write it up again. Doubt customer is gonna pay to pull the charge just to see how much is in there.
  26. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    It's one of two units cooling the space.

    It's one of two units cooling the space.
  27. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    Blower is direct drive. Currently on low speed....

    Blower is direct drive. Currently on low speed. No change on med or high. I agree on the amps hence why I posted it. If the amps were low along with the other readings, problem with the comp would be...
  28. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    I'm leaning towards inefficient compressor...

    I'm leaning towards inefficient compressor because on cooler days unit looks great and on warmer days it does this. I've kept an eye on this unit for a couple of years and it always does this in...
  29. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    No one is complaining. Found it doing pm

    No one is complaining. Found it doing pm
  30. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    Fixed metering device. No txv. Return air is at...

    Fixed metering device. No txv. Return air is at 50%rh. I was thinking wrong size piston maybe or compressor not working properly.
  31. Thread: Tricky one

    by mgibbs
    Replies
    18
    Views
    1,907

    Tricky one

    Have a York d4ce060a25a
    86# suction with 4 degrees sh
    200# head with 96 degree liquid line
    Comp amps 12.2 11.3 12.1. Rla is 16
    Return db 75. Supply db 63
    Unit has scroll compressor. Coils clean...
  32. Replies
    4
    Views
    786

    Amana/goodman aruf36 ahu leaking water

    Installed an amana 3 ton system for the in-laws back in march. No problems until now. Father in law calls and says the secondary drain pan is full and unit is off on water gard. Go over and clean the...
  33. Replies
    5
    Views
    1,332

    I get my veto stuff here...

    I get my veto stuff here
    http://www.acetoolonline.com/
    Try calling them. They have always been helpful and can tell you if it's available or when it will be.
  34. Replies
    6
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    1,149

    The set with the bad LCD was dropped. The board...

    The set with the bad LCD was dropped. The board that went bad was from static discharge I think, and I'm not sure why the two valves started leaking. I'm pretty hard on my tools overall. And no I...
  35. Replies
    6
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    1,149

    So I finally sent them in last week and received...

    So I finally sent them in last week and received a quote today. $70 dollars to replace the lcd display in one set and $61 to replace the body w/ hook and both valves in the other. They are replacing...
  36. Replies
    5
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    956

    http://books.google.com/books/about/Pneumatic_Cont...

    http://books.google.com/books/about/Pneumatic_Controls_for_HVAC.html?id=ECcgGwAACAAJ
    This is a pretty good one. I'll have to see if I have a .pdf of it.
  37. Replies
    6
    Views
    1,149

    Testo 550 paper weight..

    So now both of my 550's are having problems. First one- high and low side valves leak by, and it doesn't see the temp clamps any more. Second one- The screen is out, and the hook is broken. I have...
  38. Replies
    8
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    1,092

    Dispose of it properly by dumping it down a sink...

    Dispose of it properly by dumping it down a sink drain or storm drain. Just kidding. My company has a large container at our shop that goes to an oil recycler.
  39. Replies
    16
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    7,186

    I pressure check with 200psi of nitrogen. Then I...

    I pressure check with 200psi of nitrogen. Then I check all the joints with snoop or other liquid leak detector. Do a standing pressure check for 30 min to 1 hour (overnight if possible). If there is...
  40. Replies
    11
    Views
    1,264

    Crankcase heater always on?

    Just wondering if it's ok to have a crankcase heater that's always on. Ideally I like to have it on when the compressor is off and have it off when the comp is running. But the system I'm working on...
  41. Replies
    8
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    1,572

    i have a Supco DDM55. ...

    i have a Supco DDM55. http://www.supco.com/images/pdfproductsheets/DDM55.pdf
  42. Replies
    66
    Views
    13,858

    That's the stupidest thing I've ever seen. Why...

    That's the stupidest thing I've ever seen. Why didn't they put them on the ground and run duct work up outside of wall?
  43. Replies
    19
    Views
    2,536

    http://www.magnepull.com/ Get one of these....

    http://www.magnepull.com/
    Get one of these. Works great
  44. Thread: Dear Houston,

    by mgibbs
    Replies
    1
    Views
    745

    We'll take the humidity back if you send some...

    We'll take the humidity back if you send some rain with it!!
    Today was the first really hot day for me. It's hard to imagine that last summer it was already 100 here.
  45. Replies
    2
    Views
    780

    hope this helps. Diagram is on page 16 I think ...

    hope this helps. Diagram is on page 16 I think

    http://www.docs.hvacpartners.com/idc/groups/public/documents/techlit/40585dp23-a.pdf
  46. Replies
    10
    Views
    1,451

    There air to water heat pumps out there but...

    There air to water heat pumps out there but finding one that big may be hard. Probably better going with a new boiler and chiller.
  47. Replies
    15
    Views
    3,145

    Taken from EPA website. The Clean Air Act does...

    Taken from EPA website.

    The Clean Air Act does not allow any refrigerant to be vented into the atmosphere during installation, service, or retirement of equipment. Therefore, R-22 must be...
  48. Replies
    24
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    2,362

    Amana says to open the suction first.

    Amana says to open the suction first.
  49. Replies
    16
    Views
    2,029

    Those tubes are gonna be fun to brush. I hope you...

    Those tubes are gonna be fun to brush. I hope you gave them a price to add a heat exchanger and pump.
  50. Thread: 800 hp

    by mgibbs
    Replies
    4
    Views
    607

    No, but I read about the 2013 GT500 with 650...

    No, but I read about the 2013 GT500 with 650 horsepower.
    http://www.caranddriver.com/news/2013-ford-mustang-shelby-gt500-official-photos-and-info-news?redirect=no
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