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Type: Posts; User: boat racer

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  1. Replies
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    Yeah, that woks to cool the bottle, but if you...

    Yeah, that woks to cool the bottle, but if you use a coil in an icewaterf bucket, your tank will never be hot to begin with.

    My biggest "problem" has been over filling recovery tanks. Use your...
  2. Replies
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    2,872

    I don't really think you will get that much...

    I don't really think you will get that much gravity draining unless you use large diameter tubing.

    I have valves on both ends of my worm, if I have to, I can valve it off and move it to the other...
  3. Replies
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    2,872

    To fill the bottle you can use either port ......

    To fill the bottle you can use either port ... vapor or liquid is only in play when taking refrigerant from the bottle.
  4. Replies
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    2,872

    Unfortunately the egg shape of the bottle is the...

    Unfortunately the egg shape of the bottle is the hardest shape to cool the contents of ... that's why eggs are that shape.

    The length of tubing in ice water is the way to go.
  5. Replies
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    2,872

    You'd have to deal with pumping liquid thru the...

    You'd have to deal with pumping liquid thru the recovery machine. Not all of them can do liquid.

    To clear the liquid, remove the worm from the water ... also try to keep the coils top to bottom...
  6. Replies
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    2,872

    I used to do that ... it doesn't compare to a...

    I used to do that ... it doesn't compare to a coil of tubing in a bucket. Give it a try.
  7. Thread: 9mm or not?

    by boat racer
    Replies
    4,843
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    321,078

    I love my Luger/FEG clone of a Browning/FN Hi...

    I love my Luger/FEG clone of a Browning/FN Hi Power. $250 on Gunbroker

    I keep it in my cabinet right next to my PSL rifle ... yeah the Dragunov clone
  8. Replies
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    I made one a few years back and posted info here...

    I made one a few years back and posted info here on HVAC-talk.

    5 gallon plastic bucket, 50 ft of 1/4" tubing with flare nuts and valves on the ends.

    Just today I considered it can also be used...
  9. Replies
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    55,836

    Always pull from both sides

    Always pull from both sides
  10. Replies
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    55,836

    If its under 1,000 I doubt you have moisture. ...

    If its under 1,000 I doubt you have moisture. Constant rise indicates a leak. You will have an initial rise after closing off your pump ... after the initial rise stabilizes that's when your blank...
  11. Replies
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    55,836

    usually the end of the flare is smashed over into...

    usually the end of the flare is smashed over into the hole by someone over tightening the cap ...

    If the core turns freely, I file a little off the end of the flare, just the part smashed in to...
  12. Replies
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    55,836

    There are manifold trees (yes I meant TREE) to...

    There are manifold trees (yes I meant TREE) to put at your pump that have valves for blanking off. I think Robinair and JB both make them in several styles.


    I haven't checked lately but there...
  13. Replies
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    55,836

    It would, but it would work even better if you...

    It would, but it would work even better if you went to 3/8 copper and a 3/8 x 3/8 x 1/2. Any size reduction or length is cap tube effect slowing down your evacuation ... has more affect than the...
  14. Replies
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    55,836

    I've been using the big black 3/8 with 1/4 end...

    I've been using the big black 3/8 with 1/4 end hoses about 30 years also. straight 3/8 on both ends between the manifold and pump. Had a special 3/8 flare by 1/8 pipe high flow fitting custom made...
  15. Replies
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    55,836

    I have found ultra sonic devices helpful at times...

    I have found ultra sonic devices helpful at times when other methods were failing, but I've had less success with it than with refrigerant detectors in general. The ultrasonic transmitter is not...
  16. Replies
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    55,836

    After you have done your best pressure leak test,...

    After you have done your best pressure leak test, a good vacuum gage can be the final test of system integrity.

    Static vacuum and not running vacuum is the real test.
  17. My understanding is that if it was hooked up...

    My understanding is that if it was hooked up before the electric meter, there would be significant savings. The real argument is between big users and utilities over whether this could/should be...
  18. Replies
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    2,386

    I had to replace a weak hsi earlier this week ......

    I had to replace a weak hsi earlier this week ... ohmed out at 140-145.

    Was giving us intermittent lockouts.
  19. In the past I have successfully dehydrated water...

    In the past I have successfully dehydrated water source heat pumps that had half a gallon of water in the compressor alone using the steps outlined above. I removed the compressor and blew out the...
  20. The only way to know if all the moisture has been...

    The only way to know if all the moisture has been removed is to use a micron gage. Not only should the reading be low, it should hold when the pump is valved off. In my experience water freezes and...
  21. Replies
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    432

    Depends on how tight the building is and whether...

    Depends on how tight the building is and whether there is venting for it somewhere. Some RTU's have barometric dampers for economizers, some shops have exhaust hoods for special welding, heating or...
  22. Replies
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    20,547

    Isn't Newark any part of New Castle county that...

    Isn't Newark any part of New Castle county that isn't in another town? ... Just kidding but it seems that way.

    I'm down in Annapolis
  23. Replies
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    1,838

    I have no idea, I am not in the loop on that ...

    I have no idea, I am not in the loop on that

    Frame 4 type unit, pretty sure it has an isolation valve, so I should be able to pump all the refrigerant into the low side and replace that sensor.
  24. Replies
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    1,838

    Same model chiller ... different building ... I...

    Same model chiller ... different building ... I have one with a bad oil sensor in the bottom of the separator. Do I have to recover the whole charge and oil to replace this sensor?

    I thought I saw...
  25. Replies
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    2,119

    Plastic body barometric pressure switch. They can...

    Plastic body barometric pressure switch. They can also have clogged filter switches. A clogged filter switch will have 2 hoses. One going to each side of the filter rack.
  26. Replies
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    1,838

    Its supposed to have been on order since the...

    Its supposed to have been on order since the beginning of this summer and hasn't shown up yet. Maybe someone is goofing on this ...
  27. Replies
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    1,838

    I've already told my boss to quote that work to...

    I've already told my boss to quote that work to the customer. Thanks for confirming I'm on the right track.


    Secondary problem, this building has a pair of these ... one has just had some kind...
  28. Replies
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    1,838

    Can I get that again in English?

    Can I get that again in English?
  29. Replies
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    2,119

    Mounted in the blower section I hate them

    Mounted in the blower section

    I hate them
  30. Replies
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    1,838

    Chilled delta P 15.7 entering chilled 61...

    Chilled delta P 15.7
    entering chilled 61
    leaving chilled 56
    evap approach 6.6
    entering condenser water 75
    leaving condenser 85
    condenser approach 24.9
    condenser delta P 8.5
  31. Replies
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    I'll put the numbers up later today

    I'll put the numbers up later today
  32. Replies
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    2,374

    Not test1 & test2 ... Regular 1 & 2 1 & 2 are...

    Not test1 & test2 ... Regular 1 & 2

    1 & 2 are the zone sensor terminals
  33. Replies
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    Carrier 23XL surging on start up

    I have a new customer that has a site with a pair of Carrier 23XL screw chillers. One of them occasionally makes a pretty nasty surging sound - almost a banging sound - on start up ... but not...
  34. Replies
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    Connect terminals 1 & 2 on the LTB (not the 2...

    Connect terminals 1 & 2 on the LTB (not the 2 test terminals) to a 70* 10k thermistor mounted in the return air. You can temporarily use the outdoor air sensor from the corner of the unit near the...
  35. Replies
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    1,688

    Yeah those fans are junk. The way trane has them...

    Yeah those fans are junk. The way trane has them wired when they go bad and ground out they run continuously. I have concern that this will eventually cause heat exchangers to rust out during the...
  36. Your bur mark is your only clue ... the other...

    Your bur mark is your only clue ... the other "evidence" is irrelevant and could be caused by other things. Both wire sides of a resistor/load have "current" unless it is grounded (in which case the...
  37. I have seen the ratings on the belly band...

    I have seen the ratings on the belly band heaters. Reading something like that from an installed defrost heater would probably be impossible even when the heater was new, much less old & dirty.
  38. Replies
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    884

    No curtain on any of the 3. Fan delays work on...

    No curtain on any of the 3. Fan delays work on all 3.

    Are you guys working on the same new type low profile ICS equipment or just poking in the dark on general troubleshooting?

    I want to know...
  39. No, this type of heater will not be marked. I...

    No, this type of heater will not be marked.

    I do not think there is any cross reference of voltage for them. You have to check when you are there.

    Phase Loss is correct, if you did not check...
  40. Thread: Fan Delay

    by boat racer
    Replies
    10
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    1,128

    Fan delay also helps keep the head pressure down...

    Fan delay also helps keep the head pressure down on restart after defrost cycles.

    In the old days on R-502 machines we even had crankcase pressure regulators to reduce over loading on restart of...
  41. Replies
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    884

    ICS freezer excessive ice & frost

    Is anyone else having trouble with the new low profile International Cold Storage freezer fan coils they are selling to Yum (KFC, Taco Bell, LJS etc)? 2 side discharge perpendicular to the door and...
  42. Thread: megging

    by boat racer
    Replies
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    4,371

    It depends on the megger You are right, a 9v...

    It depends on the megger

    You are right, a 9v meg test with a hand held DVM is not going to push you into the "corona effect" that a 500v or 1,000v real megger is. Think of it this way ... the...
  43. Replies
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    3,543

    I can't figure out what you guys are using an...

    I can't figure out what you guys are using an impact/hammer drill on. I've used one maybe 15 times in 30+ years.
  44. Tin, I think you do not realize how far back the...

    Tin, I think you do not realize how far back the science and "correct ways of today" go.

    Anyone who was installing by "rule of thumb" 15 years ago was and probably still is a hack. I learned...
  45. The only way to make some one responsible for the...

    The only way to make some one responsible for the work is to lay it out before hand. Without specific written instructions or contracts, it eventually falls back to whoever started the job...
  46. Replies
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    3,543

    Mr. Chesapeake, what kind of work do you do? I...

    Mr. Chesapeake, what kind of work do you do? I live right up the road from you ...
  47. Replies
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    3,543

    Doesn't that make you afraid they might change...

    Doesn't that make you afraid they might change the battery design sometime very soon?
  48. Replies
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    3,543

    I bought a Bosch 10.8v "Pocket Driver" mini drill...

    I bought a Bosch 10.8v "Pocket Driver" mini drill (not the impactor) about a year ago and I'm still very happy with it. I don't know how many screws it can do on a charge, but it is hundreds....
  49. Replies
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    2,164

    The pump by itself should pull down to less than...

    The pump by itself should pull down to less than 100 microns in less than 10 minutes ... I have a Robinair 15600 and it usually pulls 25 to 35 with fresh oil in it in 5 minutes or less. 200 is the...
  50. Replies
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    2,613

    I've had a bunch of recovery machines. I like the...

    I've had a bunch of recovery machines. I like the Promax the best even though I had an awful time with it when it was new and under warranty. It had an internal leak I had to send it back 3 times to...
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