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  1. Thread: capture velocity

    by dfelt
    Replies
    3
    Views
    688

    Thanks Superfittertech.I was able to check on a...

    Thanks Superfittertech.I was able to check on a lot of info. Regarding the same myself.Went through a lot of my old SAIT notes,etc.You know how it,s some kind of Murphy law that when you need...
  2. Thread: capture velocity

    by dfelt
    Replies
    3
    Views
    688

    capture velocity

    In a facility kitchen having wall and island type exh.hoods;where exactly is capture velocity to be measured?At filter bank inlet or at even with base of hoods?
    Also should I see a figure of 100...
  3. Replies
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    640

    Re:Trane guy at the factory.The qualifier is a...

    Re:Trane guy at the factory.The qualifier is a "closed system".We have a non garden variety hair puller leak(s).Dye can certainly help. I suppose if you are a draw a line in the sand purist type then...
  4. Replies
    8
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    640

    I,ll give a cple instances where dye...

    I,ll give a cple instances where dye shines(pardon the pun).Dairy barn where high concentration of natural methane turns coils into swiss cheese.You think you,ve got it pegged with/electronic...
  5. Thread: Leak Lock

    by dfelt
    Replies
    37
    Views
    4,743

    How about double jeopardy with a leak lock flare...

    How about double jeopardy with a leak lock flare fitting on a txv(which happened to be leaking here anyway)encased with that GD rubberised cork tape over both the txv and sensing bulb left to age...
  6. Thread: Trane rtac

    by dfelt
    Replies
    1
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    714

    Trane rtac

    Is it corrrect that allowable pressure drop for a liquid filter/drier for r-22 is 2 degrees F or 3 psi?Actually is this the same for r-134a for said chiller too?
  7. Replies
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    3,241

    By the date I see probably resolved one way or...

    By the date I see probably resolved one way or another but I was going to say that sometimes the high limit capillary tube can touch against the element and of course would overheat.Does this model...
  8. Replies
    17
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    5,068

    What actual measured value is the run cap?If is...

    What actual measured value is the run cap?If is shy by 10percent should rep.w/new.Remember these are mass produced and if voltage spikes happen they can bulge or leak electrolyte.Urban legend has it...
  9. Replies
    5
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    1,924

    Ejbreeze....Ahem,Yes ,exactly as you said.It...

    Ejbreeze....Ahem,Yes ,exactly as you said.It became very apparrent once I undid the undercounter clamps.The outside sleeve comes right up to the top and seperates from inside sleeve and yes the drain...
  10. Replies
    5
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    1,924

    The infinite sw.had a vastly different ohmic...

    The infinite sw.had a vastly different ohmic value compared to identical unit in same kitchen @same setting[value on elements were same]
  11. Replies
    5
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    1,924

    Volrath soup well

    Have a mn#36464-10,120 volt "Volrath"soup well to change the infinite switch c/w capillary and bulb.
    Anybody ever done?The capillary tube goes up into between the outer and inner stainless...
  12. A good test of your abilities would be say on a...

    A good test of your abilities would be say on a rtu @minus 35 deg.w/a howling wind in the dark and a commercial bldg. on it's way to collateral damage.
    As someone eluded to earlier,work on the...
  13. Replies
    9
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    2,401

    Thanks for the replies gents.Now that I,m...

    Thanks for the replies gents.Now that I,m aware,won't beat the bejeezus out of the pc with a feather hammer anymore.
  14. Replies
    9
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    2,401

    cool quiz marking

    Today was a question re:who was the babt ruth cany bar named for?

    My answer was President Grover Clevelands daughter.This was marked wrong as the site had my answer shown as the same with the...
  15. Replies
    18
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    3,368

    nurselaurie,on large industrial apps.that have...

    nurselaurie,on large industrial apps.that have history of bulging/burst capacitors is a flag for imbalanced elec.panels that can result in spikes or out of tolerance power.To tend to this ,phase...
  16. Replies
    5
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    2,056

    Glad to hear that Snorkel is working good...

    Glad to hear that Snorkel is working good now.I've worked on them before and trying to recall if the pilot gas uses a little tapered needle valve as I recall taking apart and aside from cleaning...
  17. Replies
    14
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    3,963

    I'm wondering if indeed is a switch disconnect or...

    I'm wondering if indeed is a switch disconnect or a removable fuse block type for the condensing unit.If it is a pull type fuse block think before you would ever remove while under load.Who knows,if...
  18. Replies
    317
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    30,469

    Mr.William Antley,I'm that side of 50 and not...

    Mr.William Antley,I'm that side of 50 and not long ago finished last yr.of A/C and Refrig.Mech.Went to school w/kids younger than my son{generational gap but enjoyed}Aside from bosses son...
  19. Thread: New Install

    by dfelt
    Replies
    26
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    2,364

    Can't really see in pics but is that system636...

    Can't really see in pics but is that system636 pvc?At my location inspectors like to see evidence of primer{you know ,the purple crap that can end up all over}reason is becaus there was an allinone...
  20. Thread: New Install

    by dfelt
    Replies
    26
    Views
    2,364

    Looks great ,not to knock but wondering what will...

    Looks great ,not to knock but wondering what will happen in winter when vent exhaust leaves an icesicle by the window?The horizontal portion of exhaust is backgraded fr.outside to the furnace i'm...
  21. Replies
    0
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    1,119

    roof penetration flub

    Would like to have been a fly on the RTU to watch the look on this installers {notice I didn,t say "technician"}face when he finished.Did he try to open the door,did he care?
    Sidenote:the outfit...
  22. Replies
    11
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    1,199

    museum humidity

    Can you find info.to check hygrometer specs.?
  23. Replies
    11
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    1,199

    museum humidity

    I'm with a cple of others in that I think you have bldg/vapour barrier issues.The humidifier should have a controller which incl.humidity setpoint as well as high/low enable points.
    I would think...
  24. Replies
    49
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    3,677

    stories

    Mr.dmaccgrad11...this is morphing into a little different but 20 yr.ago met one of Canada's last ww1 war heroes on a call.He was 5 yrs.younger than God but I remember when he shook my hand I had to...
  25. Replies
    49
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    3,677

    don't do these don'ts

    Someone I knew real well Ahem,unplugged a chest freezer at a resi. install to temporarily plug in ext.cord{i'll remember right?}$400 later....oops.

    Service work at restaurants: think twice...
  26. Thread: capacitor sizing

    by dfelt
    Replies
    46
    Views
    8,346

    capacitor replm,t

    Don't know where this was but say if on an industrial bldg. and several bulging and leaking voltage spiking may be happening{sometimes unbalanced load on elec. panels}.
    I check for oil stains...
  27. Replies
    136
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    22,444

    Further to what ACFIXR said about heat to the...

    Further to what ACFIXR said about heat to the compressor shell{moisture trapped in cold areas}Bang shell with hand while watching micron meter.It breaks the surface tension ,releasing any moisture...
  28. Replies
    8
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    848

    flushing large/long new refrig. lines

    Coffee shop talk w/a friend about approx.200' of {1",2 5/8"} installed linset.They plan on just vacuum&positive press. test and installed liq.and suct.replaceable core filter/driers c/w access...
  29. Replies
    39
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    3,575

    ice accumulated in freezer

    You didn,t mention if the condensate drain pan heater is working or even if is one or if condensate drain line incl.heater is all fine.Have seen a few times where will show as you describe.
  30. Replies
    8
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    1,828

    millivolt connectors

    Hey Crazymonk, appreciated what you said but just wanted to share what I"ve found too. Years ago I had a space heater in garage that guy had aprox.5ft. of 20 ga.braided speaker wire to tstat.W/meter...
  31. Replies
    34
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    3,794

    belts

    Just to clarify what I had posted regarding "turning belt inside out".That would be after belt is removed from sheaves.Some do to scrutinize condition.
    One other gentleman would like to do away...
  32. Replies
    123
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    30,941

    clean vehicle

    Touchy subject hey boys? Read through them and saw MARKWOLF response which is kinda true .Before anybody gets holier than thou, it depends what work you do.For ex. someone who is fr.small town/shop...
  33. Replies
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    3,794

    belts

    For longer life on smaller diameter sheaves ie.less than 3.25" use cogged belts because of tight radius.Note also that a lot of times they will have closer to a one to one drive/load ratio than...
  34. Replies
    60
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    35,729

    pressure switch

    If a manometer is tee,d in to check actual draft you,ll find the value of draft developed.Take note of how value can sometimes change fr.when is started cold vs. when flame comes on.This is due to...
  35. Replies
    12
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    1,036

    re:zoning

    One thing to consider w/zoning is placement of bypass damper whether it,s modulating via feedback info.or barometric type is to attempt to get as much mix w/bldg return air as possible otherwise...
  36. Replies
    6
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    1,812

    complete heat replacement

    You don,t say why your,e thinking of replacing the heat module.Sounds like haven,t been issues w/air module.We know that for example the combustion blower assembly is expensive but unless you have...
  37. Replies
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    12,294

    re:coke machine

    You say you just got a used machine.If has sat for a while w/out giving info. which could harm yourself as I think you don,t have a lot of experiance w/said equipment[i,m thinking] procedures are...
  38. Replies
    10
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    1,076

    re:kit mua w/twist

    Regarding capture velocity one fellow spoke of:rec,md @approx.100fpm.for island canopy.Canopy recm,d to be as large as appliance plus 6in.around.That would size the hood @3x4ft.Velocities in main...
  39. Replies
    23
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    1,679

    Mr.Mountain breeze, Even a service tech w/out a...

    Mr.Mountain breeze, Even a service tech w/out a meter is going to be pressed to find exact cause .Clean flame sensor means nothing unless actually measure microamps to get values and know if is...
  40. Thread: weird world

    by dfelt
    Replies
    2
    Views
    507

    weird world

    You,re not going to beleive this but today ,going to a call I saw a dog driving a car and a guy in the backseat head out the window yelling at cars.
    Told you you would,nt beleive. Seriously , in...
  41. Replies
    16
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    2,208

    start cap bleed resistors

    I,ve got two rural locations [bible camps actually]w/w.i.coolers,freezers,r.i.beverage coolers and other smaller refrig.equipment.I know the power is not great because of wind storms causing...
  42. restaurants usually bad for grease laden vapors...

    restaurants usually bad for grease laden vapors and even w/good door seals a lot of evaps are coated w/fuzz and grease over that.check out.high traffic ;could maybe use vinyl curtains for staff...
  43. Thread: Lennox LGA 120

    by dfelt
    Replies
    6
    Views
    2,922

    lx lga 120, #58 lockout

    Mardoman,Dont have a manual w/me but i,ve changed parameters for #of timesa faults occured before lockout.i,ve had exact problem before w/units escpecially if cold because vent exhaust is right next...
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