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  1. i like that, gonna get a label maker and put...

    i like that, gonna get a label maker and put "dyson" on my vac pump. that way they will know i have top of the line equipment............
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    to diagnose a TXV superheat and subcooling are...

    to diagnose a TXV superheat and subcooling are bare minimums of the readings needed
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    you dont need your warm air to do service, only...

    you dont need your warm air to do service, only for installs

    you'd need your gasfitters and refrigeration installer j-card for service. low pressure hot water/steam card is a plus if working in...
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    how? the only way RH changes is a change in DB or...

    how? the only way RH changes is a change in DB or a change in grains of moisture/lp.
    in a supply trunk you aint adding or removing moisture.:whistle:

    so just how much reheat are you getting...
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    pay your dues Mr. O its in the locked "pro" forum...

    pay your dues Mr. O its in the locked "pro" forum
    get your post count up and apply .... Neo

    http://hvac-talk.com/vbb/showthread.php?116113-How-to-apply-for-Professional-Membership
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    i thought your new deck was on the...

    i thought your new deck was on the westside...............
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    this is why having good info helps us help you ...

    this is why having good info helps us help you

    a 2.5t needs more that 822 CFM. indoor RH of 56 will yeild just less than 17 deg split- you had 20.

    your at least short of of airflow, maybe...
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    thats too bad, there has been 3 techs out, still...

    thats too bad, there has been 3 techs out, still wont cool and no real measurements taken.

    sorry to sound like an old grumpy guy thats been doing this for 3 decades, but ive been doing this for 3...
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    is it charged correctly? SH/SC ? return WB /...

    is it charged correctly? SH/SC ?

    return WB / DB and supply WB / DB readings will go a long way to answering you question
  10. i get it, and have seen it too. you recognized...

    i get it, and have seen it too.

    you recognized it by calculating total and sensible capacity. then pay attention to SHR.
  11. you guys have a h&ll of an imagination, lice,...

    you guys have a h&ll of an imagination, lice, bugs and what not.

    i cant tell what that place looks like from that one picture and neither can you.

    sure looks bad, but come on. you tell me, all...
  12. Thread: Micron Gauge???

    by ch4man
    Replies
    176
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    7,708

    i just might do that, thank you:cheers:

    i just might do that, thank you:cheers:
  13. Thread: Micron Gauge???

    by ch4man
    Replies
    176
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    7,708

    so i see two micron gauges that do not agree.......

    so i see two micron gauges that do not agree....

    at least one of them is wrong.

    is the correct one the expensive one or the newer one,,,,, or not and they're both off.

    need a few more blues...
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    565

    amp draw?

    amp draw?
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    ive dealt with this before, some "ripper and...

    ive dealt with this before, some "ripper and gripper" has to torque the livin sh1t out of the flair. normally no biggie if its just a flair. but this connection also has an internal, replaceable,...
  16. thanks medic, you always seem to show up and...

    thanks medic, you always seem to show up and remind me i really do not know it all:cheers:
  17. it takes a whole lot of stacking of refrigerant...

    it takes a whole lot of stacking of refrigerant to raise the head pressure. most rise or drop in head pressure is due to changes in ambient air temp flowing across coil. that P/T thingy.....

    as...
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    it's almost always user error:eek2: if your...

    it's almost always user error:eek2:

    if your CRT has seals in good condition, trust them. its a real eye opener on just how loose the tool can be and still be leak free. think about it. the seal at...
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    yes and yes with out knowing return air wet...

    yes and yes

    with out knowing return air wet bulb correct delta T is just a guess

    once subcooling is established and you have a full liquid seal at the TXV inlet a superheat reading confirms if...
  20. before you waste any time on finding fittings,...

    before you waste any time on finding fittings, tee that thing in with a water u-tube. if it aint accurate why bother, after all who sells good, quality, accurate test equipment?

    just sayin'
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    like i said, just to piss a guy off i know...

    like i said, just to piss a guy off

    i know phillips, slotted, pozidrive, robertson( square ), torx, yada yada yada

    its the stupid idea to make a "combo" design. that makes it weak unless you...
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    587

    didnt know they made a screwdriver for those ...

    didnt know they made a screwdriver for those

    just thought thoses screws were some POS made on a mountainside village in china just to piss a guy off
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    i use psyclonelite app for the calculations, its...

    i use psyclonelite app for the calculations, its kind of clumsy as the directions for use are poor/nonexistant but very accurate and fast
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    dump energy star, that has done more to damage...

    dump energy star, that has done more to damage the environment than all the blown R22 ever will.

    sure my last 3 refrigerators are more effecient than my basement beer frig.... But my beer frig is...
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    DB in, DB out = delta T, not much good w/out RH...

    DB in, DB out = delta T, not much good w/out RH or WB

    DB, WB in can give you target supply DB with a common cheat sheet

    WB in, WB out = basic total heat removal with an expanded enthalpy chart...
  26. since the gas valve, there for the valves reg...

    since the gas valve, there for the valves reg vent is in the same pressure zone as tne valve outlet on furnaces that use the furnace cover as the sealed combustion box, then is makes differen e
  27. you dont understand. dont feel bad, lots of guys...

    you dont understand. dont feel bad, lots of guys get this wrong

    there is no positive pressure. its just "less negative" than the other port. this is due to the pressure drop across the heat...
  28. i think others are wondering the same as i am but...

    i think others are wondering the same as i am but havent asked

    on those 5 tests you did, did you record the delta P across the filters one at a time?
    always 4 readings on a furnace with external...
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    these, love'm and they last a long time

    these, love'm and they last a long time
  30. Replies
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    first i forgot the specific heat of r-12 second...

    first i forgot the specific heat of r-12
    second i forgot how to use a pressure/enthalpy chart

    work on those and you'll have your answer
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    dude, use the "reply with quote" when replying....

    dude, use the "reply with quote" when replying. no one knows who you responding to

    just sayin
  32. Replies
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    , no subcooling check? "normal" pressures? not...

    ,

    no subcooling check? "normal" pressures? not completely full yet? running about 20 lbs of "freon" good vacuum?:eek2:

    i do believe in an earlier post you chastised us for just making...
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    at least you didnt have to wash the cottonwood...

    at least you didnt have to wash the cottonwood fuss off
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    incontrol, you say its a 30,000 btuh boiler. is...

    incontrol, you say its a 30,000 btuh boiler. is that right? BB is good for about 500-600 btus per finned foot. at 150 feet something aint right. is it piped series loop or mono flo? copper, BI, what...
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    well dont quote me, but ive heard the same, so...

    well dont quote me, but ive heard the same, so taco green has been becoming my favorite color. grundfos dark red is very german.

    want made in USA, go green:patriot:
  36. Replies
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    ok, that is old and a lot wrong. perfect reason...

    ok, that is old and a lot wrong. perfect reason to replace it, $hitcan the whole thing............and.. of course, we're never wrong. dont believe me? just ask me.... just dont ask my wife
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    no i wont say your wrong. you stated all the b&g...

    no i wont say your wrong. you stated all the b&g shortcomings
    but i still replace just as wet rotor circs. most however have way less milege on them as the b&g's that just need a new bearing...
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    dont put in a 0010, thats way too much pump. if...

    dont put in a 0010, thats way too much pump. if you think you must have a wet rotor irc, go with a 007 or ups15-58 on low speed.

    but the best circ for you is a B&G series 100 1/12hp. not the HV...
  39. thx, nice job. just goes to show, if ya aint...

    thx, nice job. just goes to show, if ya aint testing, yer just guessin
  40. Thread: Rollout Trips

    by ch4man
    Replies
    10
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    583

    we were told by carrier it has nothing to do with...

    we were told by carrier it has nothing to do with the color of the collector box

    the faceplate gets bent during the replacement of the secondary screwing up the alignment of the inducer/collector...
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    i believe you hard to do in residential...

    i believe you

    hard to do in residential though, especialy teaching new guys just outa school
  42. Replies
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    thank you guys, yes this is the formula im asking...

    thank you guys, yes this is the formula im asking about

    this is for a quick basic lesson in airflow diagnostics i'm trying to create for the new guys. I dont want to overwhelm them all at once.
    ...
  43. Replies
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    893

    fan law question

    ok, somewhere( i'm sure here) i read a good description of what fan law 2 (i think) is trying to say.

    what i remember goes something like this

    "if you double the velocity of the air, the...
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    thank you

    thank you
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    837

    true, but why would anyone design a heating only...

    true, but why would anyone design a heating only for 5 psi?( i assume the OP's system is heating only)

    for process steam sure, but to heat a courthouse???
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    doesnt anyone own a VOM these days. now i just...

    doesnt anyone own a VOM these days.

    now i just glanced over this thread so i may have missed it, but you say when cold it sparks but doesnt lite the pilot.

    what was the voltage reading your...
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    711

    static probes made f 1/8" brass tubing, fits the...

    static probes made f 1/8" brass tubing, fits the same size hole that a #8 5/16 head panel screw makes.

    chopped a ECM wiring harness to create a fake motor tester, works sometimes on some versions
  48. Replies
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    unlike the boiler system that was a reissue from...

    unlike the boiler system that was a reissue from the department of redundancy department.

    lets see, one zone the wirsbo stat talked to the wirsbo zone panel, that powered the MZV whose end switch...
  49. Replies
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    1,289

    i had a no heat earlyer this winter, small home...

    i had a no heat earlyer this winter, small home with a gas designed sears gravity boiler with a millivolt gas valve. maybe 50 years old. in mint condition. after i relit the pilot by the time i...
  50. Thread: .

    by ch4man
    Replies
    9
    Views
    1,236

    nah, just his time of the month PERIOD

    nah, just his time of the month


    PERIOD
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