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  1. It's all snake oil

    It's all snake oil
  2. Replies
    18
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    1,316

    Based on the posted numbers your actual superheat...

    Based on the posted numbers your actual superheat is 9. The 240 head with saturation of 114 is too high, should be around 98 sat given it's 10 - 12 seer for that ODA temp.
    The suction sat temp is...
  3. Helps you trace in sequence the order of the...

    Helps you trace in sequence the order of the wire. The numbers change at each connection to help you follow it.
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    768

    Install low ambient as discussed above and for...

    Install low ambient as discussed above and for ultimate control an EPR valve will do the trick.
  5. Is it stuck in defrost mode...

    Is it stuck in defrost mode...
  6. The the replies indicating get someone to do it...

    The the replies indicating get someone to do it right; Actually he has.

    Most all rheems use the piston with TXV in the residential application for the same effect they use in our commercial...
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    626

    Was this inlet pressure or manifold? What if...

    Was this inlet pressure or manifold?
    What if inlet was low....
  8. Replies
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    2,089

    Ditto on the Fluke 116. I have both this meter...

    Ditto on the Fluke 116. I have both this meter and the higher end Fluke 87V. I use the 116 98% of the time and works great and well priced.
    Other DMM meters I have owned were Amprobe, Meterman,...
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    640

    Taking a stab at it. Could be electrical...

    Taking a stab at it.
    Could be electrical pitting damage caused by intermediate arcing between stationary and rotating components from a failing compressor motor (like on motor bearing pitting)....
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    845

    Is the drain trap installed correctly? Must have...

    Is the drain trap installed correctly? Must have a trap and no 45's, must be 90"s or preformed.
    No vents before the trap either.
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    760

    As to the original clearance problem; a piece of...

    As to the original clearance problem; a piece of sheet metal can make a situation into non combustible surface.

    When you cut the bvent you change the listing and now out of compliance, besides...
  12. Replies
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    460

    No

    No
  13. Replies
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    734

    This is the way to go. Pressures are good for...

    This is the way to go. Pressures are good for compression ratio and non condensibles but keep moving foward with learning and understanding saturation temps. In short pressures don't tell you much...
  14. Replies
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    734

    .

    .
  15. Replies
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    716

    Could you please provide your information where...

    Could you please provide your information where this is a requirement.
  16. Consolidated Fan Curve Chart or specs

    Came across a Consolidated industries Quatro M#MBA140NH5R furnace, 1994 era, looking for spec sheet with fan curve chart.

    This one actually in good shape, aware of the problems they had just need...
  17. Replies
    170
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    16,510

    Only take care of until original warranty from...

    Only take care of until original warranty from first set expires. All I can tell you is my personal experience and others can make their own judgment to purchase, however I suggest against it and to...
  18. Replies
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    1,918

    Wet Bulb is easily taken VS RH then convert to...

    Wet Bulb is easily taken VS RH then convert to WB. WB also for temperature ranges we work in is total heat in the air (not to be confused with enthalpy), since the ac has to remove both latent and...
  19. Replies
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    16,510

    Update: Since this was re-opened I wanted to...

    Update: Since this was re-opened I wanted to further comment on the Testo as the OP.
    The set they sent me was my 3rd. It has since failed (pressure readings) and had lasted only a few months....
  20. ^^^ Ditto I usually use a pieceof cardboard...

    ^^^ Ditto

    I usually use a pieceof cardboard and block off to maintain condensing saturation of 95 to 115*F
  21. Replies
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    465

    :bump:

    :bump:
  22. Replies
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    465

    Access to TCS Baysys Superlink

    Need help accessing a Baysys controller. Here is what we have.
    A Superlink (QD2020), a SZ2181 Unit controller and SZ1025a VAV controllers hooked to TS2023 stats.

    The last company only left a...
  23. Replies
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    3,252

    Thinking of the 510 due to the smaller size than...

    Thinking of the 510 due to the smaller size than my current Mannix.
    Something to consider on the Dwyer (I have one also) that the metal body takes a long time to stabilize bringing it in from a cold...
  24. Replies
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    21,733

    Jim B. Thanks for the videos!

    Jim B. Thanks for the videos!
  25. Replies
    127
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    21,733

    Good info Jim, almost ready to buy the Testo 320....

    Good info Jim, almost ready to buy the Testo 320. I want to get something new before the season hits hard. My TSI does have a new sensor though. Could keep it for back up. I think the pump is...
  26. Replies
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    1,684

    1. Call your local HVAC professional. 2....

    1. Call your local HVAC professional.
    2. Evaluate current system
    3. Have them perform Manual J
    4. Manual S
    5. Manual D
    6. Quote for the repair.
    7. Expect to pay for items 2,3,4 & 5.
  27. Replies
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    941

    230V 1 phase wattmeter

    I have a 120VAC "Kill a watt", but looking for something that can handle 230VAC, such as for condensing units to measure true power and not apparent. Anyone have something they use for this?
  28. Actually, BTU/W_H is EER, not to be confused with...

    Actually, BTU/W_H is EER, not to be confused with SEER. EER is "at that instant" where as SEER is "Seasonal" and not easily computed.
    SEER is defined by AHRI and has a standard (ARI 210/240) and...
  29. The Maximum rated ESP is usually .5 for a cooling...

    The Maximum rated ESP is usually .5 for a cooling ready unit and .2 for heat only.
    Most mobile home units such as Intertherm and Coleman that are approved for that application max out at .3".
    You...
  30. P E Chart

    Use the pressure enthalpy chart to plot out a system with the correct SH and SC, then one withhis method.
  31. Please share this with us. I would like to see...

    Please share this with us. I would like to see your numbers.
  32. Replies
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    555

    Acid test kits

    Anything new out there for testing acid on hermetics besides Total Test, Checkmate or those chessy litmus papers?
  33. Replies
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    808

    Digital SMAN3 on the way

    I currently have the Testo 550 and was going to get another for back up. Looked at the Digicool AK900 but was ruled out since there is no factory clamp, only some sort of velcro strap that will...
  34. Thread: CA

    by steve3871m
    Replies
    10
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    911

    I will have to consider your opinion. Can save...

    I will have to consider your opinion. Can save some $$ if I go with the 327.
    It appeared to do more on paper, but if it just graphical I can to ok with just numbers as U taught!
    Just got your...
  35. Thread: CA

    by steve3871m
    Replies
    10
    Views
    911

    Been looking at thek testo 330 L series. My TSI...

    Been looking at thek testo 330 L series.
    My TSI is getting tired but still works great. the 330 is spendy though.

    Ps: Jim D, found the elevation ASHRAE paper.
  36. Replies
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    2,858

    If this was to ever happen then I would be glad...

    If this was to ever happen then I would be glad to move over to Digi-Cool and imagine the same holds true for others. This whole sensor issue is the weak link on the 900's unfortunately.
  37. Replies
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    2,798

    Inspect your manifold and or burner alignment. ...

    Inspect your manifold and or burner alignment. This problem can occur if it is off, usually the Z axis.
  38. Replies
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    2,103

    The Robertshaw replacement is problematic. I...

    The Robertshaw replacement is problematic. I believe this is the one Johnstone supply is providing.

    Most of the time the spark gap is hard to get correct and if it does lite, the switch doesn't...
  39. Replies
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    2,858

    After I posted I seen a few threads on...

    After I posted I seen a few threads on modifications. Seems it would be easier to buy the 1250 clamps and modify the plug in, rather than reworking the whole velcro strap.
  40. Replies
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    2,858

    Digi-Cool AK900 Temp Probes

    Currently have the Testo 550's (2nd set via warranty) and looking for another set of digital gauges. Was all ready to get the Digi-Cool AK900, but the deal breaker seems to be you can only use the...
  41. I'm between 4,200 and 6,500 feet (depends on...

    I'm between 4,200 and 6,500 feet (depends on where my call is at) and concur with ASHRAE and Jim. There are only two brands and a specific model/btu within the brands that I have to derate most...
  42. Thread: CO2 Meter

    by steve3871m
    Replies
    5
    Views
    847

    Ventilation. The Co2 will let you know how...

    Ventilation.
    The Co2 will let you know how effective ventilation (fresh air) in an occupied space is.
  43. Thread: CO2 Meter

    by steve3871m
    Replies
    5
    Views
    847

    CO2 Meter

    Been searching the net and looking at hand held CO2 meters. Most of them come with temp and humidity which I don't need. (already have those tools)
    Data logging would be nice.

    What are you guy's...
  44. Replies
    170
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    16,510

    FOLLOW UP

    Doug did email quickly and we exchanged information. I was expecting a new 550 manifold. I very quickly received the UPS package.

    Doug went further and sent a whole new set; Manifold, temp...
  45. Replies
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    6,895

    Could make a feature the user can turn on or off...

    Could make a feature the user can turn on or off and a few choices of auto off time.
  46. Replies
    170
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    16,510

    Ok I've been in contact with Doug and making...

    Ok I've been in contact with Doug and making arrangements to get it handled.

    As for my comment "Now I'm ok with the bugs getting worked out, but after reviewing a few other post we now know that...
  47. Replies
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    16,510

    I left you email, thanks for the input.

    I left you email, thanks for the input.
  48. Replies
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    16,510

    TESTO 550 Don't Buy Just Yet!!

    Hold On!! Don't buy that Testo 550 just yet!!:payattention:
    OK So I have to eat crow a bit.

    I was so happy with the digital gauges and seen such hi promise. A few days after my other post...
  49. Replies
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    2,431

    For another $65.00 you can get the Testo 550 with...

    For another $65.00 you can get the Testo 550 with case and 2 clamps. (the case is a waste I never use it)
    I believe the price for the 550 and 2 clamps without the case is $295.00

    As for the 80PK...
  50. Replies
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    3,114

    Kind of like someone calling themselves...

    Kind of like someone calling themselves "Tecdaddy" I ran across that one in an add.

    As for HVACbuddy it's a pretty good program, but does some limitations.

    Be sure to read the reviews on...
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