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Type: Posts; User: danielthechskid

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  1. Replies
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    In this context a trap is just an enlarged area...

    In this context a trap is just an enlarged area to slow the flow velocity and cause the resin mist to drop out of the stream, preventing it from reaching the pump. A replaceable core filter drier...
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    484

    You can't use a mechanical vacuum gauge to...

    You can't use a mechanical vacuum gauge to measure a deep vacuum. It is a relative reading compared to your local uncorrected barometric pressure, IE in Denver it will never get to 30" Hg because the...
  3. I don't see this thread lasting long since you...

    I don't see this thread lasting long since you violated 3 forum rules,

    1. NO DIY in the open forums because you or a random third party could use the info and harm or kill themselves with it and...
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    And unless they each have check valve dampers in...

    And unless they each have check valve dampers in the plenum or are wired to only run at the same time then each will draw unfiltered air backwards through the other.
  5. Sure, in sensorless inverter drives, IE without a...

    Sure, in sensorless inverter drives, IE without a shaft resolver/position sensor it has to just blindly pulse the phases until the motor turns enough to generate a voltage so that the inverter can...
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    The problem here is that you aren't considering...

    The problem here is that you aren't considering the volume change that goes hand in hand with the pressure change. Atmospheric pressure at sea level is roughly 760000 microns HG. For easy math if the...
  7. The BBQ grill quick connect install in pic 3 is...

    The BBQ grill quick connect install in pic 3 is certainly interesting...

    Need something like this instead:

    http://ecx.images-amazon.com/images/I/51CwB6YQq2L._SL1008_.jpg

    Looks better and...
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    I don't trust them already. See the Kickstarter...

    I don't trust them already. See the Kickstarter page, it says they have 2 prototypes, 1 has a refrigerant circuit and the other the user controls, IE they haven't combined the 2.

    Also check out...
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    No DIY allowed because a third party might injure...

    No DIY allowed because a third party might injure themselves but with most motors voltage and frequency=speed and current=torque. With a forward curved centrifugal blower wheel speed=static pressure...
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    As for the absorption refrigerator, you could...

    As for the absorption refrigerator, you could take one for a camper/RV and have it re-jetted from LP to NG. It will require a 12v DC source to run the control board. I would also have the entire...
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    Long run times shouldn't be a problem as...

    Long run times shouldn't be a problem as equipment is designed to run non-stop. I'm with skwood, if all else fails and you need say 40uF, stick 2 80s in series, or 4 40s in 2S2P series/parallel and...
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    3,925

    To answer the question: Yes I have used E85, I...

    To answer the question: Yes I have used E85, I bought 1 gallon and used it in my lawn mowers just for fun, both with carburetors adjustable enough to handle the mixture change requirement. It helps...
  13. Replies
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    Well, yes. Stoichiometric (ideal mixture) for...

    Well, yes. Stoichiometric (ideal mixture) for plain gasoline is ~14.7:1, E85 is 9.7:1. That's by weight/mass air:fuel.

    Since ethanol is heavier than gasoline the by volume ratio difference is a...
  14. Replies
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    3,925

    If anyone has a Netflix subscription, I highly...

    If anyone has a Netflix subscription, I highly suggest a watching spree of documentaries, Starting with "Pump". The key is to be open minded, don't take the info as gospel, but don't outright call BS...
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    As others have said before on this site, fan laws...

    As others have said before on this site, fan laws state that it takes 8x the power to double the RPM of a fan. This means that to truly go from say 825 @1/3rd HP to 1075 would require a 3/4HP motor....
  16. Thread: R-152a

    by danielthechskid
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    743

    I don't have to ask, you tried to use the...

    I don't have to ask, you tried to use the refrigerant from some "canned air" (Oh how I hate that term) and didn't get the kind without the anti-inhalation bitterant. IOW it's the bitterant that is...
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    EER is delivered BTU/hr divided by total system...

    EER is delivered BTU/hr divided by total system watts.
  18. Replies
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    I have been running the Windows 10 Pro Preview on...

    I have been running the Windows 10 Pro Preview on my desktop on a 2nd hard drive, dual booted with 7 Home Premium on the 1st hard drive. I like it, but it has issues, my audio drivers for the...
  19. Note that some meters don't read ohms on the...

    Note that some meters don't read ohms on the diode check function, they read the forward voltage instead.
  20. Replies
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    Again, not on a rotary. The discharge line is on...

    Again, not on a rotary. The discharge line is on top and is open to the inside of the shell, the pump is at the bottom with the suction connected directly to it. The entire thing is at discharge...
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    Light dimmers use triacs and phase angle control,...

    Light dimmers use triacs and phase angle control, basically they only let through a portion of each alternation of the sine wave. The sudden voltage change instead of a smooth ramp up is hard on...
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    With system running: 1. Plug your center port...

    With system running:

    1. Plug your center port with a hose or caps and purge the air.
    2. If you have a low loss high side fitting, ball valve hoses, valve core remover, or valve core depressor...
  23. Replies
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    Remember that rotaries are direct...

    Remember that rotaries are direct suction/indirect discharge so the entire shell is holding discharge pressure.
  24. No, you can't. That would re-evaporate the...

    No, you can't. That would re-evaporate the condensate on the coil and drive up the indoor humidity.
  25. Replies
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    My 2 cents: I like the variable displacement...

    My 2 cents: I like the variable displacement systems the best, preferably TXV based but usually orifice tube such as ones with the GM Delco/Delphi V5, V7, or CVC. They are more consistent and no...
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    Why were you drilling a hole in the first place?...

    Why were you drilling a hole in the first place? You are NEVER supposed to put a drain hole in a window shaker, the water slinger ring on the condenser fan is there for a reason.

    If it's spitting...
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    Might be OK if it's a properly done MWBC...

    Might be OK if it's a properly done MWBC (multi-wire branch circuit) AKA a shared neutral. It saves copper, but given the open neutral risk I personally would only use MWBC for heavy non-critical...
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    Do a Google search for Comcast Netflix VPN. There...

    Do a Google search for Comcast Netflix VPN. There are several reports of the streaming not working properly until they used a VPN tunnel to hide from Comcast what they were doing. VPNs should slow...
  29. Something else not mentioned is that an...

    Something else not mentioned is that an evaporative/cool mist humidifier and a swamp cooler are the same thing, they both evaporate water which trades sensible heat for latent heat, the swamp cooler...
  30. And this is what annoys me so much about...

    And this is what annoys me so much about government regulations, those who flaunt them, and the crowd who says "abolish the EPA".

    It comes down to this: passing new laws and regulations to justify...
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    True, but I wanted to add a note here for those...

    True, but I wanted to add a note here for those that may find this thread via a search that they should exercise caution getting into the habit of using thread adapters instead of getting the correct...
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    I will caution here that automotive uses...

    I will caution here that automotive uses different (Acme) threads for a reason, MVAC uses PAG oil with 134a refrigerant and supposedly according to at least 1 source chlorinated refrigerants will...
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    Erm, 2PSI is ~55" of water. I am on 7" natural...

    Erm, 2PSI is ~55" of water. I am on 7" natural gas.
  34. Replies
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    Poll: I have been using Waze for a few years. I love to...

    I have been using Waze for a few years. I love to be able to fix local map issues myself.
  35. Replies
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    Sorry but we can't help you in the open forums,...

    Sorry but we can't help you in the open forums, even if you yourself are qualified to do the necessary repair a third party could come along, find said service manual, get in over their head, and end...
  36. Replies
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    If you buy a big pump at least make sure you get...

    If you buy a big pump at least make sure you get close to its rated performance, don't pull through a manifold gauge set, get the large diameter vacuum rated hoses and core removal tools, and a good...
  37. Replies
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    All of this makes me wonder a few things: 1....

    All of this makes me wonder a few things:

    1. Why are ECMs so unreliable? They are the exact same thing as a PC muffin fan just scaled up, and I have yet to see a muffin fan with DOA electronics...
  38. The current test per section is 25 multiple...

    The current test per section is 25 multiple choice questions each with 4 possible answers for a total of 100 questions. Mine was done on one of those fill in the bubble sheets that is later scanned....
  39. On a 3 wire dryer and range connection (NEMA...

    On a 3 wire dryer and range connection (NEMA 10-30 and 10-50) the 3rd prong is a neutral not a ground and hence should have been connected via 10-3 without ground wire to the neutral bar and not the...
  40. Having just tried and passed for my 608 Universal...

    Having just tried and passed for my 608 Universal I will say that the app mentioned by TEKIII helped, as well as other free practice exams online, and the Esco booklet. I did the practices and read...
  41. I will say this from personal experience: I'm...

    I will say this from personal experience: I'm with Space racer, we had an electric dryer (Neptune 5500) that would dry a load of blue jeans on auto in ~40 minutes when hooked directly to the outlet...
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    Thank you again joeyd, I'm sure it is just fine...

    Thank you again joeyd, I'm sure it is just fine too. When I went through the pump I removed the cartridge from the aluminum casting but I left the cartridge itself intact.

    The Robinair 15234 OTOH...
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    I only got it to hit zero twice, and only with...

    I only got it to hit zero twice, and only with the pump cold. Just tried it again and it goes to 4-5 microns as the lowest, still on the same oil. I haven't used it on a system yet but I have used it...
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    Multi-speed PSC and shaded pole motors under-volt...

    Multi-speed PSC and shaded pole motors under-volt themselves to increase slip on the lower speed settings via multiple taps in the run winding that act as an autotransformer. Run one on high and read...
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    Look at it this way, on a centrifugal blower or...

    Look at it this way, on a centrifugal blower or pump, flow=torque and pressure=RPM. Wrap a blower wheel with tape sometime and it will spin with almost no torque load. In a normal situation with the...
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    MOVs are surge/spike suppressors. What you are...

    MOVs are surge/spike suppressors. What you are thinking of is a negative temperature coefficient inrush current limiting thermistor that burns out. If it were an MOV then twisting the leads together...
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    My BluVac avatar.

    As requested, the story of my new YJ branded BluVac reading 0.0 microns.

    I got a pre-Platinum JB DV-200N vacuum pump with a bad shaft coupler from fleaBay, pulled it apart for sump cleaning, motor...
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    There is only 1 way I would ever use a Nest: with...

    There is only 1 way I would ever use a Nest: with a relay isolation board equipped with backup dumb mechanical thermostats in series with R to kill the system if the Nest shorts and tries to turn the...
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    Just look up high side detergent injectors for...

    Just look up high side detergent injectors for pressure (power) washers. They form enough of a vacuum to draw in liquid detergents and waxes from a non-pressurized container and mix it at a...
  50. Bovine excrement. The capacity of a given system...

    Bovine excrement. The capacity of a given system is based on the mass flow of the refrigerant being condensed and evaporated. Mass flow is controlled by the displacement of the compressor, which is...
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