evaporator coil on a/c freezing

Discussion in 'HVAC' started by chamane, Jul 17, 2003.

  1. chamane

    chamane Guest

    Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    installed a 4 inc dia. pulley, i figured the motor is having trouble taking
    it, then when i saw my low pressure at 67 and high side at 350, this is a
    very recent installation , about a week ago, could it be possible that there
    is moisture or some blocage in a small cap somewhere within the coil , i
    heard of a similar case before and i was told that the evaporator was filled
    with oil, and that they had change the coil and all was fine after. Could
    someone give me a opinion on this . Thanks in advance.
    chamane, Jul 17, 2003
    #1
  2. chamane

    Bubba Guest

    Yeah, Its real simple. You need to quit fucking around with what you
    dont know and call someone that does.
    NOTE: If you truely are a tech, you need to immediately stop what you
    are doing and get a hold of your supervisor, manager or owner. Tell
    them that you need to be trained a lot more than what you currently
    are. If they cant handle that request and you are seriously interested
    in this field, go find a company that will train you.
    Bubba

    On Thu, 17 Jul 2003 18:11:19 -0400, "chamane" <>
    wrote:

    >Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    >keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    >much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    >installed a 4 inc dia. pulley, i figured the motor is having trouble taking
    >it, then when i saw my low pressure at 67 and high side at 350, this is a
    >very recent installation , about a week ago, could it be possible that there
    >is moisture or some blocage in a small cap somewhere within the coil , i
    >heard of a similar case before and i was told that the evaporator was filled
    >with oil, and that they had change the coil and all was fine after. Could
    >someone give me a opinion on this . Thanks in advance.
    >
    Bubba, Jul 17, 2003
    #2
  3. On Thu, 17 Jul 2003 18:11:19 -0400, "chamane" <>
    wrote:

    >Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    >keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    >much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    >installed a 4 inc dia. pulley, i figured the motor is having trouble taking
    >it, then when i saw my low pressure at 67 and high side at 350, this is a
    >very recent installation , about a week ago, could it be possible that there
    >is moisture or some blocage in a small cap somewhere within the coil , i
    >heard of a similar case before and i was told that the evaporator was filled
    >with oil, and that they had change the coil and all was fine after. Could
    >someone give me a opinion on this . Thanks in advance.
    >


    Call someone who knows what they're doing. You're in over
    your head. You have missed the original problem completely, and
    created several more.

    After the new tech puts the original pulley back on, and
    removes the extra 5 - 7 pounds of gas you put in it, then he can look
    for the actual problem.



    Paul ( pjm @ pobox . com ) - remove spaces to email me
    >~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~


    Coming soon - PMTherm version 2.0 !! http://pmilligan.net/pmtherm.htm
    Free superheat charts for 38 Ref's online at http://pmilligan.net/pmtherm/
    My personal site is at http://www.pmilligan.net ,
    featuring free HVAC, psychrometric, stock market, and other software
    http://helpthecritters.com/ is my domain for helping critters
    pjm@see_my_sig_for_address.com, Jul 17, 2003
    #3
  4. chamane

    chamane Guest

    First of all , i dont want your stupid remarks, i did not add any freon in
    there, stop fucking bigmouthing every new teck that comes on here, and start
    really showing what your really made of, it seems to me that a lot of u on
    here dont know more shit that i do except for showing off, u make me shit ,
    your sure aint professional, and by the way your site is GAY.
    <pjm@see_my_sig_for_address.com> wrote in message
    news:...
    > On Thu, 17 Jul 2003 18:11:19 -0400, "chamane" <>
    > wrote:
    >
    > >Heh guys, i got this situation ,on a central a/c 2ton Keeprite,

    evaporator
    > >keeps freezing up, checked the air and blower motor is 1/3 hp, pulling

    too
    > >much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    > >installed a 4 inc dia. pulley, i figured the motor is having trouble

    taking
    > >it, then when i saw my low pressure at 67 and high side at 350, this is a
    > >very recent installation , about a week ago, could it be possible that

    there
    > >is moisture or some blocage in a small cap somewhere within the coil , i
    > >heard of a similar case before and i was told that the evaporator was

    filled
    > >with oil, and that they had change the coil and all was fine after.

    Could
    > >someone give me a opinion on this . Thanks in advance.
    > >

    >
    > Call someone who knows what they're doing. You're in over
    > your head. You have missed the original problem completely, and
    > created several more.
    >
    > After the new tech puts the original pulley back on, and
    > removes the extra 5 - 7 pounds of gas you put in it, then he can look
    > for the actual problem.
    >
    >
    >
    > Paul ( pjm @ pobox . com ) - remove spaces to email me
    > >~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~>~~

    >
    > Coming soon - PMTherm version 2.0 !! http://pmilligan.net/pmtherm.htm
    > Free superheat charts for 38 Ref's online at http://pmilligan.net/pmtherm/
    > My personal site is at http://www.pmilligan.net ,
    > featuring free HVAC, psychrometric, stock market, and other software
    > http://helpthecritters.com/ is my domain for helping critters
    chamane, Jul 18, 2003
    #4
  5. chamane

    Noon-Air Guest

    time to get back to basics

    "chamane" <> wrote in message
    news:X9FRa.1824$...
    > Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    > keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    > much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    > installed a 4 inc dia. pulley, i figured the motor is having trouble

    taking
    > it, then when i saw my low pressure at 67 and high side at 350, this is a
    > very recent installation , about a week ago, could it be possible that

    there
    > is moisture or some blocage in a small cap somewhere within the coil , i
    > heard of a similar case before and i was told that the evaporator was

    filled
    > with oil, and that they had change the coil and all was fine after. Could
    > someone give me a opinion on this . Thanks in advance.


    I need answers to questions before I can even think about making any
    suggestions.
    1)...post make, model, and serial numbers on the condenser, air
    handler/furnace, and evaporator coil(also TXV or piston and what size)
    2)...how deep of a vacuum did you pull before charging the system??
    3)...need IDT, ODT both DB and WB, also LLP, LLT, SP, ST, superheat and
    subcooling
    4)...are the blower wheel, evap and condenser coils clean?

    There are several possibilities of what several of the problems
    are....without more information, or without the actual "laying on of hands",
    there is no way anybody can tell for sure

    --
    Steve @ Noon-Air Heating and A/C


    Never underestimate the power of stupid people in large groups
    Noon-Air, Jul 18, 2003
    #5
  6. Would also be nice to know the approx ages of the equipment, and to knwo if
    it's TXV or orifice, and if the outdoor coil is dirty, and of course the
    super heat would be nice.

    --

    Christopher A. Young
    Learn more about Jesus
    www.lds.org
    www.mormons.org
    ..
    ..

    "Noon-Air" <> wrote in message
    news:...
    time to get back to basics

    "chamane" <> wrote in message
    news:X9FRa.1824$...
    > Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    > keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    > much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    > installed a 4 inc dia. pulley, i figured the motor is having trouble

    taking
    > it, then when i saw my low pressure at 67 and high side at 350, this is a
    > very recent installation , about a week ago, could it be possible that

    there
    > is moisture or some blocage in a small cap somewhere within the coil , i
    > heard of a similar case before and i was told that the evaporator was

    filled
    > with oil, and that they had change the coil and all was fine after. Could
    > someone give me a opinion on this . Thanks in advance.


    I need answers to questions before I can even think about making any
    suggestions.
    1)...post make, model, and serial numbers on the condenser, air
    handler/furnace, and evaporator coil(also TXV or piston and what size)
    2)...how deep of a vacuum did you pull before charging the system??
    3)...need IDT, ODT both DB and WB, also LLP, LLT, SP, ST, superheat and
    subcooling
    4)...are the blower wheel, evap and condenser coils clean?

    There are several possibilities of what several of the problems
    are....without more information, or without the actual "laying on of hands",
    there is no way anybody can tell for sure

    --
    Steve @ Noon-Air Heating and A/C


    Never underestimate the power of stupid people in large groups
    Stormin Mormon, Jul 18, 2003
    #6
  7. Somehow, I'm not feeling like giving advice any more.

    --

    Christopher A. Young
    Learn more about Jesus
    www.lds.org
    www.mormons.org
    ..
    ..

    "chamane" <> wrote in message
    news:izHRa.1879$...
    First of all , i dont want your stupid remarks, i did not add any freon in
    there, stop fucking bigmouthing every new teck that comes on here, and start
    really showing what your really made of, it seems to me that a lot of u on
    here dont know more shit that i do except for showing off, u make me shit ,
    your sure aint professional,
    Stormin Mormon, Jul 18, 2003
    #7
  8. chamane

    TURTLE Guest

    "chamane" <> wrote in message
    news:X9FRa.1824$...
    > Heh guys, i got this situation ,on a central a/c 2ton Keeprite, evaporator
    > keeps freezing up, checked the air and blower motor is 1/3 hp, pulling too
    > much amps , pulling 6.8 where its supposed to be at 5.3, thats after i
    > installed a 4 inc dia. pulley, i figured the motor is having trouble

    taking
    > it, then when i saw my low pressure at 67 and high side at 350, this is a
    > very recent installation , about a week ago, could it be possible that

    there
    > is moisture or some blocage in a small cap somewhere within the coil , i
    > heard of a similar case before and i was told that the evaporator was

    filled
    > with oil, and that they had change the coil and all was fine after. Could
    > someone give me a opinion on this . Thanks in advance.


    This is Turtle.

    I guess your going to have to add my name to your list of gay website
    owners, Big mouth , start showing what we are made of, non-professionals,
    making stupid remarks , and causing your Colon to stop up. My name is
    spelled C. Terry Lee and please don't misspell it.

    Son , I see that you are really over your head here and don't even know it.
    i will go ahead just like I don't know anything about the business of hvac
    and give a answer.

    First was the installation a all new equipment or just condenser and
    evaperator coil or was the furnace left over and used with new cooling
    system. the reason I ask is if it was brand new equipment, You would not
    being pulling too many amps if it was brand new and you would not be
    changing pulley and changing the system up. You need to tell use what is new
    and what part is not new.

    Now here is what i think is going on and please don't tell me just yet till
    i get through telling you what i think before you start explaining my in
    ability to work on these type systems.

    You have the blower motor running backwards and you will over amp a pully
    motor if it is running backwards free wheeling. You them go a head and gas
    up the system by the old beer can method which will calls for 65 to 70 psi
    on the pressures and you shoot it up to 65 or 70 in a hurry and just leave
    it. it will freeze up and have a 67 psi suction and a 350 head by the
    condenser coil is logged up with freon. If you just put 65 to 70 psi on the
    suction and have the furnace blower running backwards. our going to see what
    your seeing right now. So.

    You need to reverse the wires in the 1/3 hp blower motor to make it turn the
    right way and remove about 5 to 8 pounds of freon from the system. this is a
    common thing where you have new "teck" working alone in the first few years
    of the learning process.

    Ok, now you can tell me about my inability to see problems like this and
    your really good at these problems and you did not need to know anything
    from use turkeys and know nothing hvac tech's and hvac business owners.

    Now one thought before i go here. If you know more than most of the people
    here to begin with. Why are you asking us for info on the problem and you
    tell us we don't know anything?

    Reverse the blower motor and loosen the belt some and you will see the amps
    drop down on the blower motor , then remove the extra freon and you will see
    it stop freezing up.

    I'm glade you told me what the problem was for i would have never guessed it
    in a million years.

    TURTLE
    TURTLE, Jul 18, 2003
    #8

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