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Type: Posts; User: ar

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  1. Replies
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    As a big cheerleader for H10G, we have had issues...

    As a big cheerleader for H10G, we have had issues with 410a. I just got the Fieldpiece SRL2K7 and have yet to use it on an HFC, but it worked well on 22. It is going to take time to get used to...
  2. Thread: Microchannel evap

    by ar
    Replies
    74
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    9,097

    Mfg could install a liquid receiver and help us...

    Mfg could install a liquid receiver and help us out a lot in terms of pumping a system down and over charging possibility. TXVs are the best defense against a low skilled tech when charging.
  3. Replies
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    2,267

    It all depends on who you work for. Some (many)...

    It all depends on who you work for. Some (many) companies don't do company training, they assume if you went to school you have an idea of how things work and how they can be identified in the field....
  4. Replies
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    1,144

    System is only 4 years old. Whose to say a...

    System is only 4 years old. Whose to say a complete new one will be any better? The refrigeration unit cooler is out because this is in their house and has a sitting area so they want it quiet and...
  5. Replies
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    1,144

    :anyone:

    :anyone:
  6. Replies
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    1,144

    Wine room mini split conversion

    We have a Pace mini split R22 9000BTU indoor section connected to a ref. condensing unit. The indoor coil has leaks and I can't find Pace anymore. Anyone ran into a similar issue? Looks like I can...
  7. Thread: crimping tools

    by ar
    Replies
    61
    Views
    6,695

    Have none of you used the old Vaco brand (later...

    Have none of you used the old Vaco brand (later Klein) # 1900 crimpers for uninsulated terminals? These are hands down my favorite. Got a pair that's probably 25 years old and coworker has some 10...
  8. Replies
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    3,941

    I figured it out. Thanks.

    I figured it out. Thanks.
  9. Replies
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    3,941

    On the Ecobee, how do you switch to emergency...

    On the Ecobee, how do you switch to emergency heat mode on a heat pump configuration. If I don't want or can't run the heat pumpbut want electric heat to operate? I see no mode for that.
  10. Replies
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    1,666

    Simple web based control system ideas

    I have a church that would like to have the a simple web accessed control system installed that would have the ability to have room sensors/thermostats that could have override capability yet have a...
  11. Replies
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    819

    Thanks. It should be a premier facility with the...

    Thanks. It should be a premier facility with the new building. We will have many new offerings once it is open, check back with us for continuing education.
  12. Replies
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    819

    HVACR INSTRUCTOR POSITION

    Tarrant County College in Fort Worth, TX is taking applications for the position of a full time HVACR Instructor. You must possess a minimum of an A.A.S. degree in HVACR from an accredited college,...
  13. Replies
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    1,840

    How time flies!! :D

    How time flies!! :D
  14. Replies
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    1,840

    Thanks for the info. That unit is history having...

    Thanks for the info. That unit is history having been replaced with 2- new Ruud 15 air cooled condensing units. their bills (electric and water) have dropped like a rock. Still have the old Carrier...
  15. Replies
    11
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    1,595

    Change the L to an H. Thanks.

    Change the L to an H. Thanks.
  16. Replies
    11
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    1,595

    Still looking :(

    Still looking :(
  17. Replies
    11
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    1,595

    Thanks and good luck to your Packers, no worry of...

    Thanks and good luck to your Packers, no worry of losing in Dallas this time around! :(
  18. Replies
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    1,595

    Yeah, NRH is real close, Frisco...well that is...

    Yeah, NRH is real close, Frisco...well that is like the other side of civilization :D Thanks for the reply anyway.
  19. Replies
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    1,595

    Yes it is...

    and I have received zero interests until now. Please send a resume with contact info. Thanks.
  20. Replies
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    1,595

    Fort Worth, TX service tech needed

    Smaller, well established 63 year old HVACR service company is seeking long term working relationship with the right tech. We want someone to join us who is passionate about HVACR and isn't just...
  21. Replies
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    1,385

    Swat has likely told you about Eastfield in...

    Swat has likely told you about Eastfield in Dallas. If a commute is okay, try Tarrant County College www.tccd.edu in south Fort Worth. I teach there and feel it is one of the best schools in the...
  22. Replies
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    1,840

    I couldn't see how 3 GPM of oil could flow...

    I couldn't see how 3 GPM of oil could flow through the filter since connected with 1/4" copper. The oil looks pretty dirty too. This machine is old has not been handled with TLC.
  23. Replies
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    1,840

    This bypass was to get the church through the...

    This bypass was to get the church through the weekend. We won't leave it bypassed. I have the 5H book and will verify part #s. A fellow Carrier dealer that does a lot of commercial work said parts...
  24. Replies
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    1,840

    I have a 5H40 on a water cooled DX system. The...

    I have a 5H40 on a water cooled DX system. The net oil pressure is 45psig. My question is oil filter pressure drop. According to the specs, if there is greater than 5psig drop across the filter it...
  25. Thread: What size is this?

    by ar
    Replies
    8
    Views
    782

    This is a 1987 model unit with 502.

    This is a 1987 model unit with 502.
  26. Thread: What size is this?

    by ar
    Replies
    8
    Views
    782

    I could do that, but there is a pressure control...

    I could do that, but there is a pressure control I would have to reflare and renut. My problem is being able to pump this unit down initially and know what the lowside is running if I were to change...
  27. Thread: What size is this?

    by ar
    Replies
    8
    Views
    782

    Maybe, I was thinking a metric or 37 degree...

    Maybe, I was thinking a metric or 37 degree fitting. The local Copeland rep. has no idea.
  28. Thread: What size is this?

    by ar
    Replies
    8
    Views
    782

    I have a customer with an Italian built ice cream...

    I have a customer with an Italian built ice cream maker with a 7.5 Copelametic. The suction service valve has a tee flare fitting, it is bigger than 1/4 SAE and smaller than 3/8 SAE, what size is it?...
  29. Thread: EPR Valve Questions

    by ar
    Replies
    11
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    13,513

    Also, say during start-up when the TXV is wide...

    Also, say during start-up when the TXV is wide open because of the hi-load the valve will still maintain a set evap pressure.

    [/B][/QUOTE]

    No it won't.

    The EPR maintains a MINIMUM evap...
  30. Thread: fort worth texas

    by ar
    Replies
    16
    Views
    1,653

    Originally posted by lennoxman Hey...

    [QUOTE]Originally posted by lennoxman
    Hey thinking about relocating to Fort Worth Texas. Just wondering if any one knows what the pay is like? Also if there is a stong market for hvac and refer...
  31. Replies
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    1,884

    You just flip the media around the next year,...

    You just flip the media around the next year, that is extended life ;)
  32. Replies
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    2,001

    Man Mark, you're making us look bad. ;) I did the...

    Man Mark, you're making us look bad. ;) I did the work pants and black work shoes, yes Red Wings, for many years. I decided to go with jeans, dark blue ones, and Justin steel toe work boots. They...
  33. Replies
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    Sounds like an overcharge. It is easy to do on...

    Sounds like an overcharge. It is easy to do on this combination, especially from the sounds of the original contractor.

    Recover some gas and see if the pressure drops. Sometimes these units have...
  34. Replies
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    3,356

    Same problem in north Texas, but with both Ruud...

    Same problem in north Texas, but with both Ruud and Rheem.
  35. Hey Mark, Well done clean up job. Like how...

    Hey Mark,

    Well done clean up job. Like how we're not the only one installing the Aprilaires like that when applicable.

    What about future blower motor changeout? She's coming out the back....I...
  36. Replies
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    2,230

    goodman clt-30 It is a 2.5 ton A/C unit. ...

    goodman clt-30

    It is a 2.5 ton A/C unit.

    As mentioned, try pumping it down by closing the liquid line service valve. It should pull down easily to 0psig or lower. If it is quite slow, you...
  37. Thread: PDA

    by ar
    Replies
    19
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    1,890

    Lusker, I'm curious if you have had any...

    Lusker,

    I'm curious if you have had any trouble with ESC on flat rate pricing created within ESC? We have and proved it to a tech support technician yesterday via remote access.

    I posted a...
  38. Replies
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    1,072

    Thanks.

    Thanks.
  39. Replies
    2
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    1,072

    I have a Bryant 569CPX072000AAAA that I need a...

    I have a Bryant 569CPX072000AAAA that I need a wiring diagram for. What is the Carrier equivalent model number for this unit?
    Thanks.
  40. Replies
    4
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    1,037

    The 46 was based on Mueller telling me that the...

    The 46 was based on Mueller telling me that the tanks had a 20psi drop through them, seems high. Still working on this one.

    Thanks for all replies.
  41. Replies
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    1,037

    I have a customer that is buying (2) 20,000...

    I have a customer that is buying (2) 20,000 gallon Mueller dairy silos that are glycol cooled. The heat load is 4.5 tons each. Im told each silo requires 60GPM for only 4.5 tons. The pump head is 46...
  42. These compressors were also called a...

    These compressors were also called a Quadrojunk....I mean Quadroflex. They were a 4 cylinder reciprocating design based on a scotchyoke crankshaft arrangement. Yes they were and still are a piece of...
  43. Replies
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    1,856

    The difference in day and night students...

    The difference in day and night students is...well... night and day. We get quite a few younger day students and working adults at night. I am fortunate to teach mainly second year courses. This...
  44. Replies
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    3,453

    Sounds like you have an overcharge of...

    Sounds like you have an overcharge of refrigerant. It also sounds like you have condenser floodback for head pressure control. During low ambients, the receiver is starved and the thus the system...
  45. Replies
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    1,865

    This chiller cools ethylene glycol that is used...

    This chiller cools ethylene glycol that is used in a process. They want the leaving fluid around 32. The one there now has tripped when maintenance personnel are not available to reset it. I know...
  46. Replies
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    1,865

    Does the freeze stat sensing bulb on a Carrier...

    Does the freeze stat sensing bulb on a Carrier 30HR110, non-flotronic, water cooled chiller simply slide out. It is supposed to from what I recall, but this one seems stuck. Can you help me out,...
  47. Thread: Memerbship

    by ar
    Replies
    17
    Views
    1,483

    Roncool

    I signed up, for free for now, last week and have not seen any response or change in membership status. Did most of you contribute? Roncool, when did you sign up?
  48. Thread: manic about mastic

    by ar
    Replies
    29
    Views
    6,218

    Mastic is made by several mfg. A couple of things...

    Mastic is made by several mfg. A couple of things to remember.
    1. You are supposed to use a fiber mat material and "work" mastic into mat, like fiberglass work, to bridge gaps about 1/8 to 1/4",...
  49. Thread: DISPATCH SOFTWARE

    by ar
    Replies
    15
    Views
    2,182

    Freezeking, We use ESC mobile computing with...

    Freezeking,

    We use ESC mobile computing with our Ipaq 1945 pdas and Bluetooth enabled cell phones. This allows connection to the internet which is required to communicate with the server at the...
  50. Replies
    9
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    978

    What voltage is the motor? If it is 480V then you...

    What voltage is the motor? If it is 480V then you could have carbon tracking at the contactor that may give you those readings. If you got the same readings at the motor with the wires cut, that...
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