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  1. Replies
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    Because of considerations of volume, vacuum gauge...

    Because of considerations of volume, vacuum gauge sensitivity, and a few other small details, the last few dozen microns can be a bit of a pain. I know this from experience on the production line.
    ...
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    Pulling a vacuum on a recovery machine is the...

    Pulling a vacuum on a recovery machine is the only way to clear ANY recovery machine of trace refrigerants. This is because a recovery machine can only move refrigerant as far as the top of its...
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    I'm curious how your test setup will be...

    I'm curious how your test setup will be performed. Since I worked a lot on developing test methods for the G5Twin, and I know there are a lot of unexpected "gotchas" that can occur... once you start...
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    Most users still store their machine with the...

    Most users still store their machine with the caps off, but we have found that for the BEST life of the seals, it's best to not have trace refrigerants STORED in the machine.

    This isn't unique to...
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    As you can see, you guys are not alone. Between...

    As you can see, you guys are not alone. Between the dip tube causing the "knocking" (along with low loss fittings), and not removing Schrader valves, people have been holding back the G5Twin for...
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    I did see that you had a sort of "inline cooling"...

    I did see that you had a sort of "inline cooling" setup going there.

    As for the low-loss adapter, that is still a big restriction especially on the high side (that's where you're flashing the...
  7. Thread: TEZ 8

    by Appion-ChrisP
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    This is specifically what I wanted to clear up....

    This is specifically what I wanted to clear up. We actually promote the Tez8 on the basis of being repairable, including a video on the full teardown, and a rebuild kit. So, sorry for...
  8. Thread: TEZ 8

    by Appion-ChrisP
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    I think I mis-spoke... We don't want time wasted...

    I think I mis-spoke... We don't want time wasted down a black hole, but we DID design the pump to be rebuilt in the field. It's rather simple and straightforward... but we understand that sometimes,...
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    I forgot to add, some images to give you an idea...

    I forgot to add, some images to give you an idea of just how restrictive the Schraders and core depressors are (and auto-shutoff/quick-connect low loss fittings are even worse!)695821695831
  10. Replies
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    In TBrazin's images, I saw: - The...

    In TBrazin's images, I saw:
    - The "Auto-shutoff"-style low-loss fittings
    - Hoses connected directly to access valves with the Schrader-type valve cores still in
    - A tightly-bended copper tube off...
  11. Agreed with others here, if you recovered a full...

    Agreed with others here, if you recovered a full charge from the system, into a fully-evacuated tank, then moving it back into the system completely should give you a complete charge, with less...
  12. Thread: TEZ 8

    by Appion-ChrisP
    Replies
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    2,048

    Which label? There's three - right side (Logo...

    Which label? There's three - right side (Logo with serial number), left side (warning and technical info), and front (logo). I've found that the labels are usually pretty tough to remove... if yours...
  13. Thread: TEZ 8

    by Appion-ChrisP
    Replies
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    2,048

    If you haven't shipped it off yet, and you...

    If you haven't shipped it off yet, and you already have bought the rebuild parts, we can work with you directly to try and figure out the details of what's remaining. Call us at 303-937-1580 and ask...
  14. Thread: TEZ 8

    by Appion-ChrisP
    Replies
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    2,048

    Yes, it has. Multiple times. User: "Why won't...

    Yes, it has. Multiple times.

    User: "Why won't my pump pull down below 20,000 microns?"

    Appion: "Because the oil you used is not refined to a low enough vapor pressure to handle a deep vacuum."...
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    CFM calculations are both easy and difficult......

    CFM calculations are both easy and difficult... certainly easy to debate about. Atmospheric air pressure, SCFM, method of calculation, etc... For these reasons and more, we don't want to make a...
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    The new BLUE fan assembly provides more airflow,...

    The new BLUE fan assembly provides more airflow, and the new fan clutch prevents any wearing out of the assembly.

    Otherwise, many of the other changes are incremental, and it wouldn't necessarily...
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    The loud noises are typically due to output...

    The loud noises are typically due to output restrictions... that is, the output hose getting filled up faster than it can empty into the tank. This can be caused by the liquid port "dip tube" on the...
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    I actually agree wholeheartedly: the tests,...

    I actually agree wholeheartedly: the tests, despite many efforts being made to make them "equal," are not the only thing you can base the performance on. There are simply too many variables,...
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    To be totally honest, we DID kind of "cheat" on...

    To be totally honest, we DID kind of "cheat" on the performance test... we used a G5Twin. :LOL:
  20. Replies
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    Only 1/4" fittings, but they were 1/4" fittings...

    Only 1/4" fittings, but they were 1/4" fittings on 3/8" diameter hoses.

    As we've discovered, most other machines do not exceed the capacity of 1/4" connections by much, if at all. However, the...
  21. Replies
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    Both tests were performed (essentially) by the...

    Both tests were performed (essentially) by the 1998 revision of the AHRI 740 standard. Since the 1998 revision, the test procedures have not been significantly changed.

    I did not personally...
  22. Thread: TEZ 8

    by Appion-ChrisP
    Replies
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    2,048

    It takes a lot more than that for us to void the...

    It takes a lot more than that for us to void the warranty. Just please, don't use motor oil in any vacuum pump.

    We have tested our oil in numerous other pumps, and it should be compatible with any...
  23. Thread: TEZ 8

    by Appion-ChrisP
    Replies
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    2,048

    The Tez8 is compatible with ANY high quality...

    The Tez8 is compatible with ANY high quality vacuum pump oil. That includes Black Gold, for example.

    Our oil has the benefit of repelling moisture, so wet systems and humid environments have less...
  24. Replies
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    Well, there's certainly a lot of confusion and...

    Well, there's certainly a lot of confusion and miscommunication going on here about recovery machines, UL testing, horsepower, and what Appion has done for the "faster rates." I'll try to clear up a...
  25. I understand. The flange connector does need to...

    I understand. The flange connector does need to be fully tightened to ensure the tree is sitting correctly in its socket, otherwise the o-rings will be sitting unevenly. The swivel is only supposed...
  26. POE oil will react with moisture in certain...

    POE oil will react with moisture in certain circumstances (e.g., a running system), and the result will be a breakdown into sulphuric acid and alcohol.

    POE is ridiculously stubborn and slow about...
  27. Do you mean where the flange connector sits,...

    Do you mean where the flange connector sits, which allows the tree to swivel? That's part of normal operation. If you mean where the brass connector seats to the black cylinder of the input tree......
  28. For better cost savings on repairs, a leak around...

    For better cost savings on repairs, a leak around the base of the cylinders is typically only the piston seals, as these are the components that see the most wear on a recovery machine (about 30...
  29. FYI, gauges only get damaged due to excessive...

    FYI, gauges only get damaged due to excessive output restrictions. These restrictions are commonly:

    Pumping into the liquid port of the tank (it has a long, small-diameter tube that reached to...
  30. Replies
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    Glad you found some good information, just wanted...

    Glad you found some good information, just wanted to chime in a couple of points that I don't often see mentioned.

    The conductance speed of a 1/2" diameter tube will be 16 times greater than that...
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    That's an interesting idea. The G5Twin would have...

    That's an interesting idea. The G5Twin would have no problem pumping in any orientation, just make sure it has full airflow, and doesn't drop. If you have any flow restrictions in the output line,...
  32. Was there a problem with the pump you bought that...

    Was there a problem with the pump you bought that you needed to fix? If so, please let me know, either here, or directly at christian@appioninc.com. I haven't heard of any problems with the input...
  33. Replies
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    The labor of having someone go over the tool is...

    The labor of having someone go over the tool is probably far less cost-effective than getting the rebuilt kit (each kit rebuilds 2 tools). If you're truly concerned about significant wear, getting...
  34. Replies
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    That is correct, the extra o-ring was for the...

    That is correct, the extra o-ring was for the 5/16" tool, so that way the kit could rebuild either one of them.
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    It's the logistics of these "inner" parts of the...

    It's the logistics of these "inner" parts of the kits that is causing some of the delay. We'll end up with a "clean" result for just the o-rings, and I'll post here when I have that detail.

    As for...
  36. Replies
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    The "E15" is a production batch code that we now...

    The "E15" is a production batch code that we now have on our valve core removal tools, one of many small changes and improvements we've been making to the tool. Along with that change, we have...
  37. Thread: YJ-LTE

    by Appion-ChrisP
    Replies
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    8,011

    Those "pads" can certainly be a pain, although...

    Those "pads" can certainly be a pain, although I've put together so many over the years I can do it with ease. Actually, we show the "trick" to it in this video... which, coincidentally, also shows...
  38. Thread: YJ-LTE

    by Appion-ChrisP
    Replies
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    8,011

    The compressor heads, valve plates (both shown in...

    The compressor heads, valve plates (both shown in your pics), pistons, and structural housing of the crankcase are all aircraft-grade aluminum. The piston throw assembly and crankshaft are steel....
  39. Thread: YJ-LTE

    by Appion-ChrisP
    Replies
    18
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    8,011

    I just wanted to correct this misinformation:...

    I just wanted to correct this misinformation: everything about the G5Twin's motor, compressor, crankcase, cylinders, pistons, etc. is metal. Aluminum and steel. We use composite materials for the...
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    The rebuild of the VCTs isn't often required, so...

    The rebuild of the VCTs isn't often required, so few (if any) wholesalers stock the KTMV20 Rebuild Kit. However, these kits are in stock here at Appion, and any of our wholesalers can place an order...
  41. Replies
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    Thanks for this feedback, we are going to make...

    Thanks for this feedback, we are going to make adjustments to the design to improve the "fit" with core depressors.

    Currently, the access valve is recessed a little to prevent any accidental...
  42. Replies
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    A picture of how you have this set up would...

    A picture of how you have this set up would help... the valve core tools have two o-rings in the female swivel fitting, but this relies on the connected male fitting to be pretty close to conforming...
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    Personally, I prefer the Android tablets... but...

    Personally, I prefer the Android tablets... but iOS version will be out later this year. Windows-based version will be next year.




    I still don't have anything to share on the upcoming efforts...
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    The ION App accounts for these differences, yes....

    The ION App accounts for these differences, yes. When you read the SH/SC information from the ION App, it is adjusting for altitude (to account for the psig gauges).
  45. Replies
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    Just like the Digicool and Fieldpiece, we are...

    Just like the Digicool and Fieldpiece, we are using sensors that are accurate as relative sensors, but not necessarily absolute.

    That said, they track incredibly well with the absolute sensors in...
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    Thanks for the catch, I worded that completely...

    Thanks for the catch, I worded that completely incorrectly. :oops:

    Gauges display in psig. Pressure gauges (digital and analog) are calibrated/set to ambient atmospheric pressure. Unless there is...
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    Working on it.

    Working on it.
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    The gauges do not display saturation temps on the...

    The gauges do not display saturation temps on the LCD.

    Ambient atmospheric pressure affects saturation temperature. Without altitude/barometric pressure compensation, any P/T reference is only...
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    Send me a message and we can work from there.

    Send me a message and we can work from there.
  50. Replies
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    "Bluetooth is bluetooth," they say, but we did a...

    "Bluetooth is bluetooth," they say, but we did a lot of work with different radios to make sure that the gauges aren't the "weak link." I was on a job site with lots of walls and interference,...
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