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  1. More Info: the job spans an area of...

    More Info:

    the job spans an area of Alpharetta, Roswell, Norcross, Duluth and Cummings, Ga.

    The Company is an international corporate real estate company. There are full benefits. Matching...
  2. Now Hiring N. Atlanta- Commercial HVAC

    Job opening in North Atlanta area. Commercial Hvac experience or very strong residential HVAC refrigeration and troubleshooting skills with desire for commercial training. If qualified/interested...
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    Yep I use the Precendent ....choice of...

    Yep I use the Precendent ....choice of electromechanical or microprocessor
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    yep just dealing with the basic summer...

    yep just dealing with the basic summer overcharge....;)
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    ok that's good.... talking installation ease and...

    ok that's good.... talking installation ease and pricing as main factors
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    essentially the suction line will be about the...

    essentially the suction line will be about the same temp. give or take 5degreesF (that's why I say no difference) r22 at 70psi sat temp is 40F with 10degree superheat 50F r22 overcharged to 85psi...
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    :mad: I want access to pro forum ......{while...

    :mad: I want access to pro forum ......{while banging on the door} :)
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    6 in 1 or 10 in 1 whichever I grab first..... the...

    6 in 1 or 10 in 1 whichever I grab first..... the must have of all jobs and it definitely lightens the old tool load. :)
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    that's the superheat maybe ur reading it from...

    that's the superheat maybe ur reading it from wrong direction... u add refrig to lower superheat and remove refrig. to raise Superheat
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    no that's exactly the type of info I wanna...

    no that's exactly the type of info I wanna hear.... in fact I'll call our Lennox supplier tomorrow and see if he can sell me on it ..:) at least get an estimate ..at this point price may be the...
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    didnt know your questions was saying it had to be...

    didnt know your questions was saying it had to be superheated before entering....generally if u ask a simple question asking what key component is responsible for superheating the refrigerant (how I...
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    lol evaporator maybe :p you really cant be...

    lol evaporator maybe :p you really cant be confused on that
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    I'm not to high on Lennox residential what's make...

    I'm not to high on Lennox residential what's make the Lennox L better as a RTU..(oh these have the normal accesories smoke detector, economizer, roof curbs)
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    I didnt say suction line would be cooler....said...

    I didnt say suction line would be cooler....said pressures would be higher.. as far as the sub cooling ...with the system in a flooded state you would have most of the vapor condensing into a...
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    I've worked on the solar heating system(hot...

    I've worked on the solar heating system(hot water, heating) but never seen a solar energy system .... would want to hear more if anyone has info on it
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    Dont know about here in Ga but I did a job in NC...

    Dont know about here in Ga but I did a job in NC where I was told I was responsible as the licensed contractor to make sure everything was to code.
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    Bad Architect - what should I do?

    I've caught a couple of different errors on the blueprints that the architect had to replace. I've talked to him a couple of times and I'm not confident in his knowledge. Should I go back over...
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    Trane best RTU or are there better?

    Hi I'm in the process of an installation with 3 6-tons 150kbtu gas pack roof top units... I normally use Trane. Is this the best or are there better RTU's price or quality just wanna know?
  19. how long?

    How long does it generally takes ....between applying for pro mem. and getting it.
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    subcooling would be higher but that's on the...

    subcooling would be higher but that's on the liquid line and the op was asking if the suction line would be cooler .... one thing to keep in mind with an overcharge the pressures would be higher...
  21. assuming your fan motor is multi speed - cooling...

    assuming your fan motor is multi speed - cooling runs on higher speed, heating at lower speed (generally) with t-stat set to auto
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    Sounds like to me he was asking about outdoor air...

    Sounds like to me he was asking about outdoor air requirements/effects on unit.
    versus air flow restrictions or fresh air for combustion (because if he meant these I think he may have mentioned...
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    The answer is going to be call an HVAC...

    The answer is going to be call an HVAC professional to check out the situation and to do load calculations to size duct work properly
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    yep as long as it's set up to do that it should...

    yep as long as it's set up to do that it should work otherwise there is a problem with the ac system in general not the tonnage/design
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    That definitely seems high.... I'm currently...

    That definitely seems high.... I'm currently doing a job with an occupancy of 138 people blueprints has 3 4ton units with OA req. 2760cfm (table 403.3). This is a kids play business 7,000sq/ft....
  26. I'm not talking about a specific bid. No one...

    I'm not talking about a specific bid. No one would throw out a rule of thumb bid. What I'm looking for are some rules of thumbs for eyeballing jobs when you're looking through hundreds of them. I...
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    no just mixed up blueprints running gas lines to...

    no just mixed up blueprints running gas lines to packaged heat pumps
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    The heat needed to change states = latent heat ...

    The heat needed to change states = latent heat
    the heat is used only to change the state there is no change in the actual temperature.
    for example the heat needed to change a solid to a liquid...
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    you cant use duct board?

    you cant use duct board?
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    exactly

    exactly
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    so what green technology are you marketing?

    so what green technology are you marketing?
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    usually the evaporator fan will not come on...

    usually the evaporator fan will not come on until the freezer temp drops (40-30f) so as not to circulate warm air throughout the box so you can check the t-stat circuit if the temp has dropped.
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    I hear you.... the beginning of this year we've...

    I hear you.... the beginning of this year we've seen some very low bids. with customers we've had good relations with. With our regulars we have a policy to match or beat any reasonable bid and we've...
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    are you actively selling it.....are people asking...

    are you actively selling it.....are people asking for it.... is there a big demand... I havent seen much here in ga which could be my fault...
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    yep u dont want to go back and have to find...

    yep u dont want to go back and have to find it.....I had to dig up a 5' x 4' hole to find a shark bite someone installed that was leaking on a water line...... man:mad:
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    Any Conventions in Ga this year?

    Hi does anyone know of any conventions coming to ga this year?
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    "Green" market

    has anyone had much sucess with Green houses and marketing green technology. if so what is in high demand? for awhile it was solar energy what is it now?
  38. Thread: R-407c?

    by reliablehvac
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    good site

    good site
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    or short in the line could be intermittent or...

    or short in the line could be intermittent or moving around once t-stat is changed
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    The biggest thing is adjusting all the flat rate...

    The biggest thing is adjusting all the flat rate prices to reflect all the rising costs refrig, copper, steel, gas etc.
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    dont know about cooler than normal the temp will...

    dont know about cooler than normal the temp will be equal to its equivalent pressure little to no superheat.
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    that's tough

    that's tough
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    normally dont need it residentially probably some...

    normally dont need it residentially probably some other problem like sizing but they do have return ducts that acts as mufflers (rubber connection)
  44. ok making noise now :)

    ok making noise now :)
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    I'm new here and I know this question was very...

    I'm new here and I know this question was very easy but in general how do you know whether its a legitimate tech problem or a diy question?
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    In an overcharge the suction line is not cooler...

    In an overcharge the suction line is not cooler than normal as the superheat is low(due to flooding of evaporator coil ...only small portion refrigerant in coil going from liquid to vapor)
  47. Any quick take-off methods for

    I'm wondering if anyone has a quick method of laying out costs from a blueprint for commercial space <5000sqft. kindof like the residential 1600 per ton or do you have a quick method to do...
  48. just wondering

    ok I saw it ......so you must have a certain amount of posts even if you have state licenses, certifications and experience dang it I wanted to read some of those threads .....guess not
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    maybe

    I just picked up blueprints that has a schedule for heatpump that also shows gas piping to rtu I havent checked it yet but its a Trane WSCO48 once I get the specs on it I'll let you know tho, maybe...
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    atl, ga 15yrs residential commercial service...

    atl, ga 15yrs residential commercial service installation un restricted license 2 states
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