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Type: Posts; User: pulaskihvacr

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  1. Replies
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    Black eyes at church

    A man shows up at work one Monday with 2 black eyes. His co-workers asked how it happened;
    "I got 'em at Church Sunday"
    "At Church?? How'd that happen?"
    "Well we stood up to sing and this big fat...
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    You can take it with you

    A very rich (but selfish) man decided that when the time finally came around he was goining to take it with him. He willed his entire fortune to his three best friends on the condition that they...
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    Capacitors in series calculate the same as...

    Capacitors in series calculate the same as resistances in parallel, and the dielectric strength is increased.
  4. Anticipator/cycle rate?

    Anticipator/cycle rate?
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    That's what I made mine from. Used the rear axle,...

    That's what I made mine from. Used the rear axle, shocks, spings etc., from a rear wheel drive car for the running gear. We use it alot at the school.
  6. Not Quite; the formula is 4.5 X CFM (Coil) X...

    Not Quite; the formula is 4.5 X CFM (Coil) X Delta H . You should have used the 5 not 15. Enthalpy chages can be found on the psychrometric chart by extending the WET BULB lines (not the same as Dry...
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    Sorry; but Contactor is correct. The evaporator...

    Sorry; but Contactor is correct. The evaporator has saturated liquid until near the end of the coil where it has become mostly saturated vapor, at that point it begins to superheat.
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    Global cooling is our fault (HVAC Industry). Its...

    Global cooling is our fault (HVAC Industry). Its all those heat pumps we install sucking all of the heat out of the air!;)
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    When I was a factory rep for Amana, we used to...

    When I was a factory rep for Amana, we used to ship them from the factory on their sides (1 layer in truck upright with another layer on their side on top of them) The only time oil is an issue is if...
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    Mark; Manufacturers could send the instructions...

    Mark; Manufacturers could send the instructions in "talking book" format with red flashing neon signs and lighted arrows pointing at the data and some guys would still ignore it.
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    The South really won he war...the North just...

    The South really won he war...the North just controlled all of the newspapers (lol)
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    Nobody has asked.. How are you planning to remove...

    Nobody has asked.. How are you planning to remove the refrigerant from the old system? This REQUIRES EPA certification.
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    FYI: I live in Fayetteville TN, and teach HVACR...

    FYI: I live in Fayetteville TN, and teach HVACR in Pulaski. Square footage has little to do with your required load. My home has 5200 sq ft of conditioned space and is very well heated and cooled...
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    [/B] [/QUOTE} This box isn't too bad.Nothing...

    [/B] [/QUOTE}

    This box isn't too bad.Nothing too scary.Some are loaded with hiv blood.does anyone else have the pleasure of working on these?

    [/B][/QUOTE]

    I built a cascade system for UT...
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    check this:...

    check this:
    http://www.hvac-pro.org/images/nitrogen.jpg
    sorry, I was having fat finger trouble lol

    [Edited by pulaskihvacr on 10-08-2006 at 09:50 PM]
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    The only way we can improve the reputation of our...

    The only way we can improve the reputation of our schools and ultimately the technicians is to stand up and get rid of so called instructors that don't know beans from applebutter.
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    Anytime I think I've seen it all,,,I just visit...

    Anytime I think I've seen it all,,,I just visit this site.
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    propane is not "inefficient" just expensive

    propane is not "inefficient" just expensive
  19. Thread: Charging

    by pulaskihvacr
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    Re: true

    if you have any sub-cooling on the discharge line you're in deep trouble
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    A priest decides to play hooky, and play golf one...

    A priest decides to play hooky, and play golf one sunday morning. God and St Peter are looking down on him.
    St Peter "Can you believe that. A man of the cloth shirking his duties and playing golf....
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    Sunday morning Fred leaves the house around...

    Sunday morning Fred leaves the house around 5:00AM to play his regular weekend round with Bob. He finally comes back home around midnight. His wife yells at him "Where have you been ALL DAY???"
    Fred...
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    check it out:...

    check it out:
    http://www.hvac-pro.org/ppt/easytest.pps
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    Why do we fill our garages with useless junk and...

    Why do we fill our garages with useless junk and park a $40,000.00 car outside?
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    You all got it wrong! Global Cooling is occuring...

    You all got it wrong! Global Cooling is occuring because of all the heatpumps we install taking away all the heat (lol)
  25. I'm sorry, you are correct. I meant perimeter. I...

    I'm sorry, you are correct. I meant perimeter. I was headed toward aspect ratio and decided we had already confused him enough. Thanks.
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    Our policy was for the installers to connect the...

    Our policy was for the installers to connect the lines to the coil, seal one line and put an access valve in the other. Then charge line set to 100PSIG Nitrogen. When they came back to install CU, if...
  27. I love it when I hear someone say to use the same...

    I love it when I hear someone say to use the same cross sectional area. If that were true, mathematically you could mash a round duct flat and it would have the same cross sectional area. Compare...
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    Years ago Whirlpool had a 36000 BTU window shaker...

    Years ago Whirlpool had a 36000 BTU window shaker with 2 compressors. Everyone I ever saw was mounted 9" high over a glass case (lol)
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    I guess I'm real lucky.. in 40 years of service...

    I guess I'm real lucky.. in 40 years of service I've only been stung once, right on the end of my nose. Looked like Bozo the clown for a week!
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    I tell my students to just get a picture of a...

    I tell my students to just get a picture of a house in their mind, place it in Phoenix and imagine the AC it needs. Now hook a lowboy under that sucker and haul it to Fairbanks.. think it will need...
  31. I once restored a 110 year old house that had a...

    I once restored a 110 year old house that had a gravity flow unit in it. It had been converted from coal to gas. We decided to use the old, large, wrought-iron supply registers as returns from each...
  32. Thread: dual fuel

    by pulaskihvacr
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    That's one I would have to give some thought to.....

    That's one I would have to give some thought to.. Fog implies that your outdoor conditions are above freezing, so defrost should't be affected (unless your Fog occurs at or below about 40F)...
  33. Thread: dual fuel

    by pulaskihvacr
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    Indoor RH has nothing to do with the fuel used...

    Indoor RH has nothing to do with the fuel used for heating the air. If you simply raise the dry bulb temp (Heat) the RELATIVE humidity goes down. For all intents and purposes, the amount of actual...
  34. 2 things, long post, sorry, [1] when I was...

    2 things, long post, sorry,
    [1] when I was teaching at ICP in Lewisburg, brazers in the plant would fill a bag with gas (they used Nat.gas for brazing) tie a cigarette to it and then roll out into...
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    Does your distributor pre-cut ductboard as...

    Does your distributor pre-cut ductboard as well..wow
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    The really nasty thing about lightning is...

    The really nasty thing about lightning is liability.
    I once told an adjuster that if I stood right there and watched lightning hit the unit, the best he would get out of me is "This is type of...
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    sorry, it was emailed to me. first time I saw it.

    sorry, it was emailed to me. first time I saw it.
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    http://www.hvac-pro.org/images/aircon.jpg ...

    http://www.hvac-pro.org/images/aircon.jpg

    [Edited by pulaskihvacr on 08-22-2006 at 03:24 PM]
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    mrbillpro is correct. Temperature DIFFERENCE is...

    mrbillpro is correct. Temperature DIFFERENCE is whats important. 60 F comimg out with 65 going in.. not so good. 60 coming out , 80 going in.. not too bad. Check TD.
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    BTW: cheap hair spray works as good as filter...

    BTW: cheap hair spray works as good as filter spray and is cheaper
  41. Please keep in mind that the manufactuer only...

    Please keep in mind that the manufactuer only builds half the system.. the other half is the responsibilty of the designer/installer. The best equipment in the world isn't worth a fip with a bad...
  42. I live in southern-middle Tennessee. I have 3 ton...

    I live in southern-middle Tennessee. I have 3 ton (capacity controlled TXV installed) on 5200 ft of conditiioned space (1 1/2 story, brick-nothing special). This unit has maintained 73db@48% for the...
  43. essentially anything that falls on the SHR line...

    essentially anything that falls on the SHR line for the structure will meet design condition. It depends on what your design requires.
  44. Was that one of the R-500 units with an iron body?

    Was that one of the R-500 units with an iron body?
  45. Residential hermetic compressors are cooled by...

    Residential hermetic compressors are cooled by refrigerant vapor, they don't need to dissapate heat to the air.

    You didn't say whether or not it has always been loud or if this is a new...
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    Theoretically we can give you about any SEER you...

    Theoretically we can give you about any SEER you want. It won't do much as far as comfort but it will be real efficient doing it.
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    Yes. On commercial units, Copeland used to...

    Yes. On commercial units, Copeland used to recommend additional heaters (over stock) on some of the semi-hermetics in very cold climates, but the long off cycle is the main killer. That is why so...
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    Goodman owns the Amana Manufacturing plant in...

    Goodman owns the Amana Manufacturing plant in Fayetteville TN.
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    I guess I wasn't as clear as I should have been....

    I guess I wasn't as clear as I should have been. I meant that crankcase heat is used for migration. Migration will occur in warm climates as well as cold.. cold only makes it worse. Some...
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    most common cause of sweating ducts (or...

    most common cause of sweating ducts (or insulation on the ducts) is low air temperature in the duct due to low air volume. (dirty coil, closed grills, etc) Another possibility is that the insulation...
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