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Type: Posts; User: Spide

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  1. in the original post i see "Having some humidity...

    in the original post i see "Having some humidity issues in my house ..."

    what are these humidity issues?
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    have the duct system replaced by a contractor...

    have the duct system replaced by a contractor that speaks manual J and manual D.

    i bet 80% of the duct systems in residential housing does not have enough airflow capacity or else has poorly...
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    what was the failure mode of the motor?...

    what was the failure mode of the motor?
    bearings? windings?
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    we have had good success using craig1's procedure.

    we have had good success using craig1's procedure.
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    20+ year old residential a/c would be better...

    20+ year old residential a/c would be better replaced than repaired.
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    i would do a load calculation using ACCA manual J...

    i would do a load calculation using ACCA manual J and sketch out the existing ductwork.
    what is the actual design tonnage required and what is the capacity of the existing ductwork.
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    Now the system is running like this: 410-a ...

    Now the system is running like this:
    410-a
    Suction 160#/56* Suction temp 76* SH=20

    Head 400#/116* LL temp 106* SC=10

    I would think that with a relatively smaller, 3ton TXV on a larger...
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    ductboard fabricated and installed correctly is...

    ductboard fabricated and installed correctly is cost effective and works as well as insulated sheet metal ductwork.

    anything not installed correctly (like flex duct) will not be effective or work...
  9. hank williams sr had a good song about mind your...

    hank williams sr had a good song about mind your own business.
  10. Thread: pump down

    by Spide
    Replies
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    1,434

    many lo temp compressors are murdered due to...

    many lo temp compressors are murdered due to flood back from the evaporator after defrost.
    pump down prior to defrost can also speed up defrost time.
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    is this piece of equipment grounded?

    is this piece of equipment grounded?
  12. arrgh... change the stars to b l o g s p o t...

    arrgh... change the stars to b l o g s p o t without the spaces...

    that works!
    :)
  13. to VSTECH. your hyperlink thingy is broken...

    to VSTECH.

    your hyperlink thingy is broken using IE.
  14. Replies
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    please tell me it works, please tell me it works,...

    please tell me it works, please tell me it works, please tell me it works, please tell me it works, please tell me it works, please tell me it works,please tell me it works, please tell me it works,...
  15. Thread: Lineset sizing

    by Spide
    Replies
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    746

    where i live, the inspectors and insurance...

    where i live, the inspectors and insurance companies want installations per the manufacturer's instructions.
    the manufacturer will address refrigerant line sizing in these instructions with charts...
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    in Ohio, a backflow device on a sprinkler system...

    in Ohio, a backflow device on a sprinkler system requires a sprinkler certification of some kind.
    all other backflow devices require a backflow certification.

    the certs are expensive to get in...
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    nu-Calgon CalClean. USDA okie-doke and safe on...

    nu-Calgon CalClean.
    USDA okie-doke and safe on membrane roofs.

    if she needs more than that, you need a new coil.
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    I think its a Witt, Russell, HTPG unit.

    I think its a Witt, Russell, HTPG unit.
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    why did the compressor fail? short-cycled the...

    why did the compressor fail?
    short-cycled the oil out of it??
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    850

    Hmm, your suggesting high operating temps or just...

    Hmm, your suggesting high operating temps or just a bad iol ?

    I am pointing out how an oil pressure control can trip without an oil failure.
    I have seen perfectly good oil pressure controls...
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    if the compressor internal overload opens with...

    if the compressor internal overload opens with the contactor closed, the oil pressure control will time out and open.
    the internal OL then resets.
    when you arrive, you reset the oil control and...
  22. good luck with your pledge. i'll alert Sporlan.

    good luck with your pledge.
    i'll alert Sporlan.
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    I am so glad the homeowner didn't get ripped off....

    I am so glad the homeowner didn't get ripped off.
    A professional makes it look easy, don't you think?
    :)
  24. have you seen a physician about your headaches?

    have you seen a physician about your headaches?
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    who makes the ComfortAire mini splits? LG??

    who makes the ComfortAire mini splits?
    LG??
  26. Thread: transformers

    by Spide
    Replies
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    1,302

    if the primary side of the transformer is open,...

    if the primary side of the transformer is open, there was high amperage on the secondary.
    ask yourself, what causes high amperage?

    (a contactor that doesn't pull in completely is one of my...
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    But I did talk to the guy who is head of the...

    But I did talk to the guy who is head of the program, and he's been in it for something like 30 years and runs a local HVAC company. He seemed to be very knowledgeable and interested in teaching me...
  28. I have a heat pump in my all electric home. My...

    I have a heat pump in my all electric home.
    My electricity consumption was about 50% higher this January than January 2013.
    And please stop calling me surely.
    :grin2:
  29. Thread: A BAD DAY

    by Spide
    Replies
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    1,923

    very glad nobody was killed or injured. can you...

    very glad nobody was killed or injured.
    can you imagine the OSHA paperwork?!?

    helicopter lifts always make me nervous.
  30. Thread: A BAD DAY

    by Spide
    Replies
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    1,923

    "clean up in aisle two, please"

    "clean up in aisle two, please"
  31. If the dead compressors are going back to...

    If the dead compressors are going back to Copeland, I would request a teardown report. They will bill you for it but it will tell you the failure mode.
    Or you could cut open the compressor...
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    York had a batch of condenser fan motors that...

    York had a batch of condenser fan motors that turned opposite the intended rotation.
    Took awhile to figure out the error. We happened to get one of the first shipments.

    Trust no one.
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    my top three dangers: - driving - 480VAC - LP...

    my top three dangers:
    - driving
    - 480VAC
    - LP gas
  34. sounds like your service company knows what...

    sounds like your service company knows what they're doing.
    I would keep them.
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    I'm 75 miles from tiffin. We let air to air...

    I'm 75 miles from tiffin.

    We let air to air heat pumps run at all temperatures.
    But I do admit you don't get much heat at -13*....
  36. We replace refrigerant compressors outdoors in...

    We replace refrigerant compressors outdoors in subzero temperatures.
    I would have the compressor replaced ASAP.
  37. To kleecker: what does the installing contractor...

    To kleecker:
    what does the installing contractor say about this?
  38. What I am saying is that depending on the furnace...

    What I am saying is that depending on the furnace is it possible that there could be a blockage between where the switch connects and where the inducer pulls from?

    agreed.
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    what or who is ECTO?

    what or who is ECTO?
  40. Thread: refrigeration

    by Spide
    Replies
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    1,054

    1hp comp = 1 ton of A/C (7.5hp comp is about 7.5...

    1hp comp = 1 ton of A/C (7.5hp comp is about 7.5 tons A/C)
    1hp comp = .66 ton of high temp refrig
    1hp comp = .34 ton of lo temp refrig

    except when it isn't.
    I think that's what you were...
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    I ordered a K16. It should work. Gotta love...

    I ordered a K16. It should work.
    Gotta love the old equipment...
  42. Replies
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    Baso K19WT thermocouple

    anybody know where to get a Johnson Controls Baso K19WT thermocouple 60 inches long or longer?
    old Despatch (!) baking oven. did I mention it's old?? :)
  43. Thread: HVAC ENGINEER !

    by Spide
    Replies
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    Views
    565

    I would think Tanzania would be a great place for...

    I would think Tanzania would be a great place for HVAC engineers. There is a lot of infrastructure being built there, as I am sure you know. The airport in Mwanza is being rebuilt as well as major...
  44. hey, original poster! you're an EE...do the fuses...

    hey, original poster! you're an EE...do the fuses at the service disconnect for a 5-ton packaged unit protect the unit or the power wiring to the disconnect?

    :hijacked:
  45. If you’re in nw ohio you could enroll at...

    If you’re in nw ohio you could enroll at university of northwestern ohio www.unoh.edu/ in lima. They will teach you how to safely use the tools for soldering, brazing, pressure measurements, etc. ...
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    join Refrigeration Service Engineers Society aka...

    join Refrigeration Service Engineers Society aka RSES.
    take advantage of their training stuff. join a local chapter if there's one nearby.
    study hvac every night for two hours.
    save 10% of your...
  47. the sheep usually enforce the law for them. how...

    the sheep usually enforce the law for them.
    how many standing pilot 70% gas furnaces are sold in the USA anymore since the DOE efficiency rating rules?
    how is that enforced?
  48. wood stoves have to meet a particulate level to...

    wood stoves have to meet a particulate level to be sold in the usa.
    the epa site has a pdf dated august 2013 listing brands and models that meet the new standard.
  49. I think it is wise to replace the compressor...

    I think it is wise to replace the compressor contactor after five years of operation even if it looks to be in good condition.
    There are certain controls that should be replaced at a certain age and...
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    I have licenses and I can still kill people. ...

    I have licenses and I can still kill people.

    "Imagine everyone always minding their own business."
    I think I read that in Proverbs somewhere.
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