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Type: Posts; User: Cool_Air

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  1. Replies
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    heat pumps without accumulators

    :angel::whistle: Whirlpool didn't have them on there 16 seers in 2007.
  2. Replies
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    :gah::grin2:The piston will only let a certain...

    :gah::grin2:The piston will only let a certain amount of ref. through the orifie control by hi side pressure and the TXV will modulate the flow by checking superheat on the suction line leaving the...
  3. Replies
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    correct sizing icynene home

    :eek2::eek2::angel:hard to believe load, just did one manual J 8 3100 sq. ft. condition, low sineable and very low latent low, 2 ton cool 34000 heat the latent was only 800 btus needs around 150cfms...
  4. Replies
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    801

    WOW

    Just did a manual J on a 2403 sq. ft. houst lots of widows and high ceilings 3 tons :eek2:
  5. Charging by low side

    :angel:after pressures are equilize crack the low side guage and throttle NO more than 10 psi to keep from flooding compressor with liquid.
  6. Replies
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    1,612

    how much sq. in area for 4 ton

    :angel:200 hundrend per ton X 4 = 800 sq.in do two 20X25" filter grills = 100sq.ins. you still loose some area for the grill (10%) and filter restricken.
  7. Replies
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    3,411

    ecm motor failiur

    :angel: Talking about ecm motors a few months back my wife started hearing something like a truck running outside while the ac was on, I open up the air handler and pull the blower out carried it to...
  8. Thread: capacitor

    by Cool_Air
    Replies
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    4,027

    testing capactors

    :grin2: haacrmedic thanks for this information
  9. Thread: capacitor

    by Cool_Air
    Replies
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    4,027

    How to test a capacitor while the unit is running

    :.02::whistle: 2650 X amps. Divided by volts while the condensor is running this will give you microfereds of your capacitor under a load.
  10. Thread: Hello

    by Cool_Air
    Replies
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    1,802

    my bad

    :angel: sorry my mistake

    to you and the Forum .
  11. Thread: Hello

    by Cool_Air
    Replies
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    1,802

    Where are you from and what ATC school?

    Where are you from and what ATC school?
  12. This is the Ask Our Pro's forum. In order to post...

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread....
  13. Replies
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    2,772

    Maby Evp. dirty causing low air flow plus low...

    Maby Evp. dirty causing low air flow plus low heat load on house.
  14. Replies
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    51,954

    Sticky: Poll: :whistle: sale whirlpool

    :whistle: sale whirlpool
  15. Replies
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    943

    Cut off plate

    :whistle:I believe its so that whe the blower fan is turning the air as it comes around the blower wheel it helps to through the air out the discharge opening instead of recirculating it around and...
  16. Thread: R 22 dry unit

    by Cool_Air
    Replies
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    6,179

    charging a R22 dry unit.

    :hijacked::putergreet:look on the name plate located close to the conrtol box on the outside unit. you'll see the Model #,Serial # compressor FLAs. Fan motor amps and you'll see a factory charge R22...
  17. Replies
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    3,741

    wire size & lenght

    [QUOTE=e-z breez;12027981]:whistle: possable loose connection wire size #6 could have voltage drop connectors to long.Make sure heaters arn't touching any metal frame.
  18. Replies
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    2,928

    25 vs 50

    :gah: thanks
  19. Replies
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    2,928

    50 pascal or 25 pascal?

    :whistle:Thanks I understand.
  20. Replies
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    2,928

    25 or 50

    :grin2:Ita 25 pascal for the duct blaster and 50 pascals for the blower door test.
  21. Replies
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    2,650

    I understand now

    Thanks
  22. Replies
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    1,325

    Why a vacuum

    :gah:Why not use nitrogen to pruge with around #1 to#3 lb.
  23. Mike is usely right

    He's going behind people that do SORRY WORK he may not know everything but he's on top of most. I live in the southeast and a lot of the A/C work here stinks,the old saying pay me now or pay me later...
  24. Replies
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    Hi eff. condensers today

    :whistle:Today the outside units a hi eff. and may only need a 20* diff. from the ambient
  25. Replies
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    2,650

    Read the instructions first!!

    Read the instructions first!!
  26. Replies
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    3,065

    4 pin setup ?

    :putergreet: where can you order the 4 pin setup I have the Tec Mate Pro? thanks
  27. Replies
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    1,723

    Open Foam vs Close foam

    :angel: Thanks looking to here from you later cool_air
  28. Replies
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    1,723

    Cloes Cell vs Open Cell

    I was told to use open cell under roofs incase you would have a leak you would find it and with the close cell you wouldn't before the decking would rot what about under wooden floors?
  29. Replies
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    :putergreet:If you use 0.03 on booths,registers...

    :putergreet:If you use 0.03 on booths,registers and return grills what about strip heat? Subtrack this from 0.5 then does the A/H count for the evp.coil. More CFMs higher static .I've found some air...
  30. Replies
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    :eek2: I agree cheeper is'nt aways cheeper just...

    :eek2: I agree cheeper is'nt aways cheeper just last night a person call on his heat pump and he said he's been waiting on me for two weeks I've been sick and out of work doctors orders, after...
  31. Replies
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    2,369

    The EEM is more eff. than the psc motor but...

    The EEM is more eff. than the psc motor but nothing like a ecm. When the solenoid closes it opens two ports in the scroll letting the ref. unload in the compressor and I think the trane unit has two...
  32. Replies
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    :eek2:With as much insulation that you have it my...

    :eek2:With as much insulation that you have it my or may not be close with out doing a manual J ,S and check D it's only gussing If you do all this and the ducts wrong its a no go! To little...
  33. Replies
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    Return air

    :patriot:1600 cfms of air flow I was talking about the filter return grill not the duct.
  34. Replies
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    1,269

    return size

    :yes:The 25X25=1875 So 20X20 =1500sq. ins which is 1125 sq.ins. close to 1200.
  35. Replies
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    1,269

    3 Ton = 600sq. ins.

    :rules::CU: I agree with Todd but remember 200 sq. ins. per ton of free area, Try and use .75% time area for the volicity rate. example is 20X20=400 X 3 =1200sq. ins. (3 ton) but your grill dosn't...
  36. Replies
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    1600 CFMs AK Face area

    :yes:You got 1600 cfms_ 24"X30"=720" sq.ins X3=2160"sq. ins.X.75 for grill metal slots=1620" sq. ins. Remember that the return Grill openings are at .75% of free space, thats why you need this size...
  37. Replies
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    NITROGEN

    :eek2:Always pruge line set while brazing then charge lines to sweep the inside Evp and lines, it acts like a sponge soaking up any mositure, then pull a vacuum deep or triple breaking it each time...
  38. Its against the law !!!!

    :spam: your not cirtified and you could easly overcharge your system and have more problems than you want.
  39. Replies
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    Maby the dirty sock smile microrg. growing on the...

    Maby the dirty sock smile microrg. growing on the evp. coil dark and wet has time to mulitipy during weekends.
  40. Replies
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    1,258

    hot room??

    :putergreet:
    :putergreet:Get some one to do a load cal and make up air!!
  41. Replies
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    3,735

    Where do you come From expanding to much!!!!!!!

    :pileon::pileon::pileon::pileon::pileon: Please go to classes a a collage at night and liston to a instructor on condition air!!!
  42. Replies
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    I had a 4 ton heat pump in the house I bought 5...

    I had a 4 ton heat pump in the house I bought 5 years ago light bill ran about $240 plus in hot summertime and higher in the winter just us two a home. I did a load calc. on my house and it call for...
  43. USE CORRECT LINE SET

    :ghug:If the new unit spec. call for 7/8" & 3/8" line set Thats what I would use if It calls for 3/4" & 3/8" line set and the old unit is very old I would run a new line set of that size especilly if...
  44. Replies
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    stageing strip heat in cold weather

    :nopity: I think you should only stage for 10kw on second stage tstat so it would run longer and hold a constance temp. and if needed bring in the other 5 or 10 kw at a lower thermole blance point ....
  45. Replies
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    sq.ft vs tonage

    :patriot::patriot:2100 sq.-2 stage 3- ton y2 & 2.25 ton-y1 zone 2
  46. 3M filters????

    :callpro::callpro:Jerry the higher cap. filters are rated higher to stop more air born particals but the down side is its kills air flow espically after they load up. your return filter grill should...
  47. Replies
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    1,530

    Hi static pressure BAD!!!!!!!!!!!

    :argue:under size duct work, most air handlers are set to use 0.5 static on medium speed the smaller the duct the higher the static try using 700ft.-900ft.- fpm. on main trunks and 500fpm. on returns...
  48. Replies
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    1,205

    Ambement Temp vs duct Temp

    :argue: Manual D has temp range example Attiv Temp and duct Temp Call delta T will give you the thickness of the insulation R-6/R-8
  49. Replies
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    1,997

    Cold weather Cap. DROPS!!!!!!

    :angel:As the temp drops so does the cap. of your heat pump.Once you reach the thermo balance point look out Strip Heat!!
  50. Replies
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    1,997

    AUX HEAT on/off

    Usely there is a diff. setting on second stage heat(strip heat) to come on several * below frist stage heat and you can set it several * lower so it want come untill your heat can't keep up or you...
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