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  1. Thread: sight glass

    by alexw
    Replies
    51
    Views
    6,512

    1) A sight glass gives you an indication of what...

    1) A sight glass gives you an indication of what is happening. You should not charge a system via sight glass observation unless you have a special situation and really know what you are doing. A...
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    . JonAdams1 . . . What you describe does...

    .
    JonAdams1 . . .

    What you describe does sound abnormal. Normally in cold winter and hot summer climates we would expect more air flow through the system for cooling than for heating. If you are...
  3. Need Aprilaire Humidifier installers/servicers

    .
    I'm looking for humidifier experts who know quite a bit about Aprilaire water panel models and now the Model 800 steam humidifier.

    If you have considerable Aprilaire experience please email or...
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    4,220

    . Ed . . . Thanks for your insight regarding...

    .
    Ed . . .

    Thanks for your insight regarding the Service Assistant. I am aware of CheckME!, Title 24 in California and the John Proctor ideas.

    The Service Assistant is really an enthalpy...
  5. Replies
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    Field Diagnostics & Service Assistant -Realities

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    Thanks for sharing your valuable experience with the Service Assistant.

    As you suggest I find it a huge challenge to schedule work with residential homeowners. They have every reason in the...
  6. Replies
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    See Photo & .PDF info in Original Message

    .
    See Photo & .PDF info in Original Message

    Using the Field Diagnostics Service Assistant includes using enthalpy calculations to arrive at an Efficiency Index and a Capacity Index. The Service...
  7. Replies
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    Field Diagnostics & Service Assistant

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    The Field Diagnostics - Service Assistant will be used in public utility programs in about eight states during the 2010 air conditioning season. The Service Assistant was formerly identified as a...
  8. Replies
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    40,796

    . Doug . . . Please tell anyone who says your...

    .
    Doug . . .

    Please tell anyone who says your stuff costs too much that their prices are too low.

    If you can't afford continuous education and the best tools available you should find another...
  9. Thread: KW Meter

    by alexw
    Replies
    3
    Views
    653

    . What do you want to be able to do with the...

    .
    What do you want to be able to do with the power meter? Do you just want to be able to read kilowatts or do you want to be able to analyze the power, i.e.
    look at power factor or harmonics etc. ...
  10. Replies
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    Has anyone heard from a Honeywell rep about the...

    Has anyone heard from a Honeywell rep about the maintenance needs for TrueSTEAM humidifiers?

    My feeling is that what we are experiencing is OK if Honeywell is talking, suggesting and disclosing...
  11. Replies
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    10,037

    TrueSTEAM issues

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    ComfortAdvisor . . .

    Yesterday I serviced two 12 GPD TrueSTEAM humidifiers in a four furnace, 9,000 sq ft house. Both humidifiers had shut down with four LED blinks indicating over heating of...
  12. Replies
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    12,704

    KLEINman . . . Yes! . . . I've heard good...

    KLEINman . . .

    Yes! . . . I've heard good things about the Inficon leak finder. :)

    You might find these documents of interest re: Leak finding . . .

    ...
  13. Replies
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    12,704

    . Hi . . . KLEINman . . . I just bought a...

    .
    Hi . . . KLEINman . . .

    I just bought a pair of KLEIN offset snips and I really like them . . . good stuff. :)

    Are you an expert refrigerant leak finder? I'm looking for all the help and...
  14. Replies
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    12,704

    . BeckMech . . . Go here for a well thought...

    .
    BeckMech . . .

    Go here for a well thought of digital gauge set. The 1250 is what I'll be purchasing for our 2009 A/C season. http://digi-cool.com/

    You might also do a search here on...
  15. Replies
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    . IceMan . . . Please give me a little slack....

    .
    IceMan . . .

    Please give me a little slack.

    I 've been waiting for the 1250 to become available. When the 2009 Air Conditioning season gets going full blast I expect to be using one or two...
  16. Replies
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    . BeachTech . . . You get the At-A-Boy award...

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    BeachTech . . .

    You get the At-A-Boy award for the day. You evidently do read the Kings English.

    It is a shame that so many people don't read/listen before they write/speak.

    I wonder how...
  17. Replies
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    Digi-Cool 1250 + What manifold?

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    To: Those of you who have Digi-Cool digital gauges

    1) What is your favorite manifold to add to the DRSA 1200 or 1250?

    2) What is your favorite source for the manifold only?

    If it will not...
  18. Replies
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    12,704

    . Just For Fun . . . I may be repeating your...

    .
    Just For Fun . . .

    I may be repeating your Mastercool digital manifold experience. :mad:

    As in a previous messsage in this thread I did the RMA thing and they sent me a new manifold after a...
  19. Replies
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    50,528

    . Doug . . . You have obviously become and...

    .
    Doug . . .

    You have obviously become and expert on thermistors and/or other alternatives to thermocouples.

    Can you give us some feel for the response time we should expect from your...
  20. Replies
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    50,528

    . Doug . . . OK . . . I get the picture! ...

    .
    Doug . . .

    OK . . . I get the picture!

    On the 1250 is there any way for the end user to calibrate via offset or otherwise the temperature readings?

    Do you/will you ship an actual...
  21. Replies
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    50,528

    Doug Lockhart...

    Doug Lockhart . . .

    What are the temperature sensors in your new 1250?

    Thermistors?

    Thermocouples?

    If thermistors would you give those of us who purchase a 1250 a copy of the ...
  22. Replies
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    12,704

    . Kerreckt . . . Unlike you I did have a...

    .
    Kerreckt . . .

    Unlike you I did have a problem with one of the two Mastercool digital manifolds I purchased this last summer.

    Upon sending the message below to Mastercool tech support they...
  23. . lvjeffro . . . You have to ask yourself . ....

    .
    lvjeffro . . .

    You have to ask yourself . . . "Why am I interested in HVAC?" :confused:

    Do you have an analytical mind? Are you methodical? Do you have good eye-hand coordination which makes...
  24. Replies
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    7,715

    . Does this mean that an old Fluke is better...

    .
    Does this mean that an old Fluke is better than a new Fluke?

    When did the China mfg start, do you know?
  25. . When a gas type tankless water heater is used...

    .
    When a gas type tankless water heater is used to replace a tank type water heater there are two challenges and a maintenance must.

    (1) The gas line must be large enough to handle the high Btu...
  26. Replies
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    1,033

    Who has an Oscilloscope?

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    I'm interested in learning about DDC and the new wireless controls which are coming on strong now and more so in the near future.

    1) Where should I go to learn about DDC and the new Honeywell...
  27. Thread: mapp gas

    by alexw
    Replies
    43
    Views
    5,859

    j0joe33 . . . Wait a minute! :D I don't...

    j0joe33 . . .

    Wait a minute! :D

    I don't think we are advocating the use of Mapp only. We are saying that Oxy-Mapp may be a good substitute for Oxy-Acetylene. Mapp alone and/or propane alone...
  28. Thread: mapp gas

    by alexw
    Replies
    43
    Views
    5,859

    . j0joe33 . . . You are correct the youtube...

    .
    j0joe33 . . .

    You are correct the youtube demo you specify below is really, really bad.

    The oxy-mapp setup you see in the wiki link is an example of what can be done. All you need is a...
  29. Thread: mapp gas

    by alexw
    Replies
    43
    Views
    5,859

    Poodle Head Mikey...

    Poodle Head Mikey . . .

    I found the youtube demo you mention below hard to watch, endure.

    The torch technique is not good. :rolleyes: :confused::p:o

    1)The tubing should have been bent with...
  30. Thread: mapp gas

    by alexw
    Replies
    43
    Views
    5,859

    . j0joe33 . . . You have us on a roll. :D ...

    .
    j0joe33 . . .

    You have us on a roll. :D

    These two URLs have some good info about oxy-mapp . . .

    http://www.tpub.com/content/construction/14250/css/14250_78.htm
    ...
  31. Replies
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    10,990

    . Jim . . . Where in this discussion you do...

    .
    Jim . . .

    Where in this discussion you do you address the life of oxygen sensors in combustion analyzers?

    You would be doing us all a service to tell us what your experience has been...
  32. Thread: mapp gas

    by alexw
    Replies
    43
    Views
    5,859

    . j0joe33 . . . When you do your...

    .
    j0joe33 . . .

    When you do your experimentation you should try oxy-mapp. Mapp by itself is not hot enough to come close to giving you a satisfactory experience compared to the oxy-acetylene you...
  33. Replies
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    Milwaukee M-Spector Inspection Camera

    .
    Has anyone seen the new Milwaukee M-Spector Inspection Camera? How does it compare with the other brands of similar devices? Ridgid, Testo, others?

    Product description says it has a 2-1/2" high...
  34. Replies
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    AHR Show? Chicago Jan 26-28, 2009

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    Doug . . .

    Is it the AHR Expo in Chicago, January 26-28, you will be attending?

    That will be a good time to talk about air conditioning and Digi-Cool. The outdoor temperature may be around...
  35. Replies
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    Doug @ Comfortech 2008

    .
    Doug . . .

    Will you by chance be at Comfortech 2008 in Atlanta where you could give us look at your latest and greatest? :)
  36. Thread: Finding Leaks

    by alexw
    Replies
    22
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    2,437

    Good Leak Finding ideas!

    .
    Rusty . . .

    I really like your ideas for finding evap coil leaks. Now if you just had a magic way of getting easy access to the coils we would all have an easier time working on them. :):):):):)
  37. Replies
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    Digital Manifold Waterproofing

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    How waterproof are digital manifolds?

    How waterproof are all the other meters we use?

    What happens to them if you get caught in a downpour or they somehow get water dumped on them?

    If...
  38. Replies
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    3,814

    Free Drill Not With Rebuilt

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    Pacnw . . .

    You are correct . . . You only receive the FREE PS20 Pocket Driver if you purchase "any Bosch Ultra-Compact Tool". Rebuilt tools are excluded.

    The interesting part is that I saw...
  39. Replies
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    3,814

    Bosch PS40-2 = Neat Compact Impactor

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    Based on what many of you suggested I bought a Bosch PS40-2 from CPO tools . . . . . . http://www.cpotools.com/search/20070814100031/index.php/search?terms=PS40-2+

    Look for the CPOtools Mail-in...
  40. Replies
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    Can't Field Calibrate!

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    The UEI DT200 is NOT field adjustible/calibratable.

    My ice is pretty close to 32°F and there is definitely not as much difference in either the air or ice temperature as displayed between the...
  41. Replies
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    Your Opinion Please!

    .
    I had three dual input Type-K thermocouple digital thermometers sent to me which are brand new right out of the plastic bubble pack.

    The manufacturer specified accuracy is in the temperature...
  42. Replies
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    3,814

    #2 robertson Square Drive

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    ptemko . . .

    You said music to my ears!
    Do you by chance use #2 Roberson Square Drive pointed sheet metal screws?

    I'm in the Denver area and I do use them. They come from Robertson in...
  43. Replies
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    3,814

    Handiest Small Driver/Impact Tool

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    What is the handiest battery powered tool for removing/driving 5/16" and 1/4" hex screws on equipment covers?

    I'm looking for a small tool to quickly remove and replace covers on condensers,...
  44. Replies
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    50,528

    I'm not cheap! I'm willing to pay for quality!

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    Doug . . .

    I try very hard to do it right the first time! You are evidently trying very hard to come up with the best device you can given the financial reality of the situation.

    I pay...
  45. Replies
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    You have my sympathy!

    .
    Doug . . .

    OK . . . I understand the limitations (at least some of them) as to what you can do. And thank you very much I don't want an analyzer from you that tells me what to do. All I want...
  46. Replies
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    Design clarifications

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    Doug . . .

    Thanks for the explanations. I did not realize you had the display design cast in concrete so simultaneous SH/SC display is not happening. I can live with that if I can connect...
  47. Replies
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    50,528

    SH - SC Toggle? and Denver ZERO PSI

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    Doug . . .

    Now that I'm into charge checking all day long in the Denver area I am looking at SH and SC many, many times a day. I like to look at both SH and SC whether it's a TXV or NON-TXV...
  48. Replies
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    Why are you mad at YJ? Twilli?

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    Why are you mad at YJ? Twilli? :mad: :mad: :mad: :mad:
  49. Replies
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    I've been censored!

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    Doug . . .

    I'm pretty sure I responded to your message below.

    My response must have been censored. :eek:
  50. Replies
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    Static Electricity Problem With Type "K" Thermocouple

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    Weber . . .

    What is the nature of the static electricity problem with Type "K" thermocouples? I find it hard to believe that some kind of shielding would remove that problem.

    Type "K"...
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