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  1. Replies
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    Just my 2 cents worth: Your current situation...

    Just my 2 cents worth:

    Your current situation says look for a paid apprenticeship. That said, my brother is an auto mechanic. He specializes in high end foreign cars like Volvos, Bimmers,...
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    "No doubt I would of went OEM, but he is broke....

    "No doubt I would of went OEM, but he is broke. No dinero!! I guess I could of just let him sweat!!" So- how can he afford the electric bill for a/c?
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    361

    Do a google/yahoo search on these: Chugash,...

    Do a google/yahoo search on these:

    Chugash, kwajalein, autec, pacific architecs and engineers, kbr, eastern test range, computer sciences raytheon
  4. Thread: russell id

    by jhd1234
    Replies
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    553

    Any chance you can get a look at the A/C TXV for...

    Any chance you can get a look at the A/C TXV for info?
  5. Thread: Salad cooler

    by jhd1234
    Replies
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    1,739

    yes- the explanation is to see how your liquid...

    yes- the explanation is to see how your liquid line temperature matches up with your "indicated" condensing temperature. High subcooling would possibly mean noncondensables. High subcooling could...
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    It sounds like this system began life as an R502...

    It sounds like this system began life as an R502 system. Before chasing your tail, take a look at your pressure/temperature chart and compare the condensing pressures of R502 to R507. Example- at a...
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    2,470

    You can't use the emerson valve because the Z...

    You can't use the emerson valve because the Z charge is low temp. What if you used the 1/2" outlet valve and a 1/2" x 3/8" fitting bushing?
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    http://www.sporlanonline.com/prvs.shtml

    http://www.sporlanonline.com/prvs.shtml
  9. Replies
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    2,696

    I had seen it done by manufacturers. I believe...

    I had seen it done by manufacturers. I believe it's to ensure that liquid refrigerant is entering the capillary tube. I started to copy the idea.
  10. Replies
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    5,413

    Pressure limiting will be indicated on the TXV...

    Pressure limiting will be indicated on the TXV label. For example- your valve might be a SPORLAN EFSE-1-SZP. The Z = low temp amd the P = pressure limliting. On some applications there will be a...
  11. Replies
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    Check the TXV to see if it a pressure limiting...

    Check the TXV to see if it a pressure limiting type. If yes, you charged the system when the box was hot and the TXV was throttling flow to keep the evaporator pressure from going too high and...
  12. Thread: TXV problem

    by jhd1234
    Replies
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    1,255

    Alco take apart TXV's [T series] have selectable...

    Alco take apart TXV's [T series] have selectable cages inside. The cage has the port, superheat spring, and adjustmnet all in one assembly. Trane used to use them a lot. Check them out at...
  13. Thread: Howdy Fellers

    by jhd1234
    Replies
    19
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    2,766

    Hey Dow Glad to see you back. I was on hiatus...

    Hey Dow
    Glad to see you back. I was on hiatus for a while as well. I did grocery stores for many years and, while it's good work, the hours do get old. You wind up giving too much money to Uncle.
  14. Replies
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    I went to Tecumseh's website, clicked on library....

    I went to Tecumseh's website, clicked on library. Then I selected product search and entered the compressor model #. A product desription page came up. To the right you'll see links for technical...
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    1,137

    I did a search for Kysor Warren which took me to...

    I did a search for Kysor Warren which took me to Heatcraft. New one on me, I didn't know Heatcraft owned them. There is a historical documents section which contains an IOM for D6S1 which is probably...
  16. Thread: Air Curtain

    by jhd1234
    Replies
    7
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    1,419

    Go back to square one and get a full set of...

    Go back to square one and get a full set of diagnostic numbers [refrigerant type, type of temperature control, evaporating temp, condensing temp, superheat, subcooling, ambient temp, box temp, TXV...
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    My experience with cap tube systems has been that...

    My experience with cap tube systems has been that if the liquid line dryer is upsized, the charge usually has to be increased to compensate. The larger drier increases the internal volume of the...
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    2,696

    Well, the total suction superheat is around 116F...

    Well, the total suction superheat is around 116F to 120F [evaporating temerature plus 80F suction line] which seems excessive. Additionally, the condensing temperature is about 103F. I agree that a...
  19. Replies
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    1,527

    Get yourself a charging slide rule from Trane or...

    Get yourself a charging slide rule from Trane or Carrier [or both]. I used to use them on all brands, Worked fine.
  20. Replies
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    514

    Is the compressor nameplate readable? Mabe that...

    Is the compressor nameplate readable? Mabe that can clue you in. Looking at the TXV heads might help. You could also try calling Heatcraft.
  21. Replies
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    2,696

    Where is the suction line piped to the...

    Where is the suction line piped to the compressor? If it goes to the head, it's air cooled. If if goes to the motor housing, it's refrigerant cooled. If the compressor is a Copeland, the second...
  22. Replies
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    1,096

    I was very satisfied. With the newer features,...

    I was very satisfied. With the newer features, it's even better. And it comes with a 30 day no questions refund. I have talked to a few guys around the country who are doing well. It's a full...
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    check out this website www.uncleharry.com just...

    check out this website
    www.uncleharry.com
    just my 2 cents worth but I think it's better suited to your needs
    btw- he is in the Baltimore area and does one day ride-alongs
    I bought the program...
  24. Replies
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    5,711

    sitting at my desk one day, phone rings, kid on a...

    sitting at my desk one day, phone rings, kid on a no a/c call at a restuarant

    kid- I need a thermostat, the customer was putting up some decorations, bashed the thermostat with a ladder

    me-...
  25. Replies
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    676

    R4909A? What was the original refrigerant? What...

    R4909A? What was the original refrigerant? What TXV does it have? R409A is an R-12 substitute. R408A is an R502 substitute.
  26. reheat system- cools to a specific humidity then...

    reheat system- cools to a specific humidity then adds sensible heat to the supply air which lowers the RH. Dust off your psychrometric chart and see what happens to RH as you move straight across to...
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    523

    Used board? You're kidding right? Have you tested...

    Used board? You're kidding right? Have you tested the bin thermistor? You can get a service manual at Scotman's website.
  28. If you have excess cooling capacity, why not turn...

    If you have excess cooling capacity, why not turn it into a reheat system with some strip heaters? It won't be cheap.
  29. Replies
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    1,666

    If the compressor motor is capacitor start...

    If the compressor motor is capacitor start already, then pressure equalization is not the issue [especially if the 3 in 1 didn't help]. I'm thinking it's more like when the compressor is HOT, it...
  30. Replies
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    1,407

    Could you take a dremel tool and cut a small...

    Could you take a dremel tool and cut a small opening around the back wall where the drain tube goes thru? Repair or replace the drain tube and seal the hole with expanding foam.
  31. Replies
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    I remember a Bohn [I think] single fan coil on a...

    I remember a Bohn [I think] single fan coil on a smallish WIF. The WIF door opened to the WIC, not the kitchen. It would build an iceball on half of the coil while the rest was clear. The buildup was...
  32. Replies
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    http://sporlan.jandrewschoen.com/20-10_062009.pdf...

    http://sporlan.jandrewschoen.com/20-10_062009.pdf

    http://sporlan.jandrewschoen.com/20-148.pdf

    The first time I got an education about distrbutors was on a 7.5 ton split where someone had made a...
  33. Replies
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    1,470

    Yeah, way to go dude. That sounds like a Del...

    Yeah, way to go dude. That sounds like a Del Monte facility. On a DX chiller barrel, the refrigerant goes thru the tubes and the water is in the barrel.
  34. Replies
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    http://www.icorinternational.com/images/3_HSIM.pdf...

    http://www.icorinternational.com/images/3_HSIM.pdf

    second last page
  35. Replies
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    Worn and noisy motor bearings?

    Worn and noisy motor bearings?
  36. Replies
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    633

    It's not an air conditioner, it's a freezer....

    It's not an air conditioner, it's a freezer. Adjust thy thinking. 0 psig for hotshot is -20 degrees. What low side reading does it settle out at? A static evaporator will have a high TD. Does the new...
  37. Replies
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    Once you prime the trap, there won't be any...

    Once you prime the trap, there won't be any backflow. Put the trap on the outside of the box. My usual MO was to run copper then switch to PVC outside and put a PVC P trap at the end of the run. ...
  38. single function timeguard- for starters the timer...

    single function timeguard- for starters the timer is in the "ready to start position" [A and A2 are made, B and B2 are made]. On a call for cooling, CR pulls in starting the outdoor fan motor and...
  39. Thread: 5 ton RTU

    by jhd1234
    Replies
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    2,191

    What good does it do you if you read the...

    What good does it do you if you read the saturation temperature without reading the liquid line temperature at the oulet of the condensor coil?
  40. Replies
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    Someone correct me if I'm wrong, but the last...

    Someone correct me if I'm wrong, but the last time I looked at a psychrometric chart adding sensible heat lowers the ambient RH. Wouldn't going from 45 watts per bulb to 23 watts per bulb reduce the...
  41. Replies
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    28,058

    I doubt it pays much more than $15 an hour plus...

    I doubt it pays much more than $15 an hour plus room and board. The food was good. Good diving and fishing and you learn about Marshallese culture which is weird. I looked up Kwaj, Chugach still has...
  42. Replies
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    28,058

    Computer Sciences -Raytheon has the Eastern Test...

    Computer Sciences -Raytheon has the Eastern Test Range contract
    and also AUTEC

    I think Chugach has the Kwajalien contract

    I don't know who has GITMO now

    PAE has several embassies. if you...
  43. Replies
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    1,008

    I worked on GITMO in the late 1970's doing ACR....

    I worked on GITMO in the late 1970's doing ACR. Do you have any idea who has the ACR contract now?
  44. Thread: dial-a-charge

    by jhd1234
    Replies
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    6,614

    http://www.thermalengineeringcompany.com/display.c...

    http://www.thermalengineeringcompany.com/display.cfm?p=12&cat_id=10

    http://www.testersandtools.com/Charging-Cylinder.php
  45. Replies
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    490

    try dave's ESL cafe

    try dave's ESL cafe
  46. Replies
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    1,056

    http://www.gallawa.com/microtech/data4.html

    http://www.gallawa.com/microtech/data4.html
  47. Thread: cap tubes

    by jhd1234
    Replies
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    2,831

    http://www.jbind.com/catalog_multi-page/Page_52-58...

    http://www.jbind.com/catalog_multi-page/Page_52-58_JB_Industries_2007_catalog.pdf

    http://www.yellowjacket.com/HVACRProducts.asp?l=9&t=HVACR&c=82
  48. Replies
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    "A freezer revamped into a cooler will short...

    "A freezer revamped into a cooler will short cycle due to it being oversized."

    "when he and his old mechanic decided to turn his cooler case in to a freezer"

    Hmmmm....

    You've done well ....
  49. Replies
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    1,479

    http://www.appliancepartspros.com/ You can see...

    http://www.appliancepartspros.com/

    You can see a parts breakdown here. The end of your model # is a zero not letter O. You'll be amazed at how simple it is. There will be a tech sheet on the box...
  50. Replies
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    1,479

    Set the controls to the midrange, maxing them out...

    Set the controls to the midrange, maxing them out is a mistake. No frost buildup in feezer as in you peeked in there or as in you took the cover off the evap and looked at the coil, air chute and...
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