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  1. #1
    Join Date
    Mar 2008
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    va bch va
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    7
    i
    Last edited by jlt31; 03-26-2008 at 05:43 PM.

  2. #2
    Join Date
    Jun 2007
    Location
    Round Rock
    Posts
    3,520
    You REALLY need to be more specific. You aren't making any sense and you really sound like you have no idea what you're doing. Almost like DIY'er bait.

  3. #3
    Join Date
    Jul 2004
    Location
    Massachusetts
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    6,829
    Quote Originally Posted by jlt31 View Post
    This maybe an easy qeustion for most but im going to ask.When you read on a peice of equipment. 200psi low and 400psi high how do you break that down on your gauge when adding charge. dont have to be those 2 numbers no peice of equip in mind.Reminder no formal training all on the job.Thank you for your help.
    Don't even try to charge the system. All kidding aside, you run a serious risk of injuring yourself or someone else with your lack of knowledge. If you're serious about being a service tech, then go get the education. Otherwise you're just another wannabe, otherwise known as a do-it-yourself handyman. We can't help you here. Sorry.
    If YOU want change, YOU have to first change.

    If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!

  4. #4
    Join Date
    Nov 2005
    Location
    Haymarket VA
    Posts
    642
    Quote Originally Posted by skippedover View Post
    Don't even try to charge the system. All kidding aside, you run a serious risk of injuring yourself or someone else with your lack of knowledge. If you're serious about being a service tech, then go get the education. Otherwise you're just another wannabe, otherwise known as a do-it-yourself handyman. We can't help you here. Sorry.
    one more vote

  5. #5
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,709
    Quote Originally Posted by jlt31 View Post
    This maybe an easy qeustion for most but im going to ask.When you read on a peice of equipment. 200psi low and 400psi high how do you break that down on your gauge when adding charge. dont have to be those 2 numbers no peice of equip in mind.Reminder no formal training all on the job.Thank you for your help.
    they are maximum test pressures and have nothing to do with operating pressures.

    step away from the unit and call a pro..........

  6. #6
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    104
    Quote Originally Posted by jlt31 View Post
    This maybe an easy qeustion for most but im going to ask.When you read on a peice of equipment. 200psi low and 400psi high how do you break that down on your gauge when adding charge. dont have to be those 2 numbers no peice of equip in mind.Reminder no formal training all on the job.Thank you for your help.
    I'll bite - if you are seeing 200 psi on the low side - your compressor is damaged. Probably grossly overcharged which is causing refrigerant to blast its way back into the suction line. Valves are now toast. Need a new compressor. On second thoght, the system could be full of air and/or other contaminants too.

    You need to learn about Superheat and Subcooling. Pressures mean very little. They just tell you the saturation temperature of the gas for the component you are measuring. You cant do a thing with [just the pressures] unless you know what the required Superheat and Subcooling goals are for a unit.

    Oh, and I wouldn't stick around near that system too long. Its going to blow soon.

  7. #7
    Join Date
    Feb 2008
    Location
    Western NC
    Posts
    2,504

    Hmm

    No formal training is right.

    Can anyone say poor compression ratio???

    200psi??? Are you looking at an Air Conditioner or an air compressor? PSIG, PSIA, PSI......they are all different.

  8. #8
    Join Date
    Apr 2004
    Location
    Charlotte, NC
    Posts
    648
    Quote Originally Posted by Buck_Taylor View Post
    I'll bite - if you are seeing 200 psi on the low side - your compressor is damaged. Probably grossly overcharged which is causing refrigerant to blast its way back into the suction line. Valves are now toast. Need a new compressor. On second thoght, the system could be full of air and/or other contaminants too.
    Oh, and I wouldn't stick around near that system too long. Its going to blow soon.
    He is reading the pressures from the data plate, the ones that say TEST PRESSURE. Not that he is reading it from his gauges. Good thought though.
    "Fighting Ignorance since 1973 (It’s taking longer than we thought)." The Straight Dope.

  9. #9
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,763
    As others have said. Your reading the coil safety test pressures.

    Now, are you someone just starting learning the trade.
    or a home owner trying to figure out if his system is charged right.
    Contractor locator map

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    How many times must one fix something before it is fixed?

  10. #10
    Join Date
    Mar 2008
    Location
    va bch va
    Posts
    7

    sorry people

    My cousin is 18 just learning the trade got on site last night on my screen name. Left last night after signing up, did not log out. sorry wont happen again.

  11. #11
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,763
    Never say never.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

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