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Type: Posts; User: madarius

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  1. Thread: delta t

    by madarius
    Replies
    6
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    1,163

    Well if that the case,then the HZ fluctuates

    and as a result the rpm of the motor fluctuates proportionately to the VFD response.this is a closed loop feed back system.
  2. Thread: VAV vs. CV

    by madarius
    Replies
    6
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    1,732

    The reason for this advantage of vav...

    Energy managment does play a big role when you are dealing with large cooling loads. VAV systems is beneficial when it comes to energy consumption over CV systems because all CV systems are on/off...
  3. Thread: delta t

    by madarius
    Replies
    6
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    1,163

    To change the coil's set point...

    This is when you increase or decrease the rpm of the motor - not the hertz.In the U.S,the hertz is relatively 60 hz standard. I'm taking this as you're wanting to increase or decrease the rate that...
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    View Post

  5. Replies
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    725

    check the low voltage electrical wiring...

    there may be a loose connection at the thermostat or other related components. Just a suggestion.
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    985

    Possibility is that...

    your discharge flapper reed valve may be defective causing low pressure on the high side. The effect of a defective flapper reed valve causes the gas in the cylinder to open the reed valve,...
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    1,974

    Re: madarius

    this is madarius, TWCpipes- I have thought of that Idea but It was hauled off by a senior.
  8. Replies
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    1,974

    Have you had a situation where there is 2 stages...

    Have you had a situation where there is 2 stages of cooling employing individual fans. Now, one fan spins clockwise, thus spinning the second stage fan counterclockwise due to the manipulation of the...
  9. Replies
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    6,157

    The information you need is in your neck of the woods

    Well, doesn't sound adequate. Can you tell me what is the return air temperature and the outside air temperature and I'll get back to you this afternoon. The reason I asked for these is because if...
  10. Thread: Leak Search

    by madarius
    Replies
    15
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    1,662

    To add on...

    check condition of condenser!
  11. Thread: Leak Search

    by madarius
    Replies
    15
    Views
    1,662

    the information you need is in your neck of the woods

    Never pressure test system past 150lbs. Sounds to me that as you charged unit the head went to the roof with a relatively low suction- given the load was high. Sounds to me that there is moisture in...
  12. Replies
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    1,603

    The information you need is in your neck of the woods

    The post prior to this one is a possibility of 30%, only because this a fairly new unit and that is not what's practical or economical in the field. I would love to agree with the first post....
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    6,157

    The information you need is in your neck of the woods

    It sounds like you have no overcharge.The first possibility would be that you have a bad restriction in your liquid line, starting from the filter drier. Usually the filter drier reaches a state...
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    By the model number this looks like a 10 tonner

    To answer that question for you, yes you have to split the coils to get in between because usually there is a collection of dirt existing. Tough work just to P.M a unit but it should pay off in the...
  15. I see you are an experienced Tech and I highly...

    I see you are an experienced Tech and I highly regard Techs as yourself. I've been doing this for 3 years and I've had a couple of senior men who couldn't explain, cut and dry, as you did- not to...
  16. Thread: gauges

    by madarius
    Replies
    8
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    1,180

    Re: gauges

    If you blew your high side gage, then it wouldn't fluctuate. #2 having your gages on over night does not affect the pressure mechanism inside of your gages, unless the head is over 350lbs.
  17. I thought this to be a good refrigerant, however...

    I thought this to be a good refrigerant, however I understand that it must be charged as a liquid do to it's 3 blend mixture.
  18. Can anyone tell me what application does the...

    Can anyone tell me what application does the refrigerant hotshot employes and is it a good, reliable refrigerant
  19. Replies
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    2,781

    Maybe this can be of some help.

    In that situation I would of checked the supply Voltage From 1 phase to the next. Givin a 5% tolerance of one another would confirm normality of supply. As far as there being an internal overload,...
  20. Thread: return air

    by madarius
    Replies
    5
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    958

    Let me correct that latter statement

    This looks doesn't look practicle if someone is trying to increase return air flow. If that is the case then it'll eventually throw the whole air distribution system off balance also possibly causing...
  21. Thread: return air

    by madarius
    Replies
    5
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    958

    Let's hope this is the case

    To be clear cut and dry I believe this to be someone's way of introducing 25% fresh air as required by ARI standards 1989
  22. Thread: BTU

    by madarius
    Replies
    5
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    1,081

    The information you need is right in your neck of the woods

    Also if it's rated at 280tons and said to do only 170 tons then that's only 60% output which doesn't quite add up because every unit is suppose to produce 80% output capacity of the input.In any case...
  23. Thread: BTU

    by madarius
    Replies
    5
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    1,081

    The you need is in your neck of the woods

    So if what Chomper says is correct about the it bing 280 tons, then 12000 BTUs equates to 1 ton. So mathematically 280Tons times 12,000 BTUs equals 3,360,000 BTUs.
  24. Replies
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    The information I needed was in my neck of the woods.

    What you seen I think it's an orifice that feeds into a distributor. I say this because there has to be a metering on every unit to drop the temp. of the refrigerant entering the lo side of system....
  25. Thread: GE 10 ton

    by madarius
    Replies
    28
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    7,796

    INFORMATION YOU NEED IS IN YOUR NECK OF THE WOODS.

    That compressor looks like a 7 tonner.You'd be suprise to see that baby run as its name implies- for many years to come
  26. Replies
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    The information I needed was in my neck of the woods.

    Thank you Diceman
  27. Replies
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    977

    Information you need is in your neck of the woods.

    Yeh man, possibly the absence of a trap has caused that. I think it's between that and a bad pitch. trust me I've been there before. If it's gravitational lines make sure it's pitched. Also, make...
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    The information is in your neck of the woods

    O.k. coach411 let me give you by theory the best answer for this problem. I am 90% sure of it. Let's take into consideration that there is an undercharge. An undercharge influences head pressure to...
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    Upon repairing a water cooled condenser, we...

    Upon repairing a water cooled condenser, we evacuated the system of charege. The tubes are at atmospheric pressure or 0 psig. Now we cut into the system to change a component.All of a sudden the...
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    Any information you need is right in your neck of the woods

    Norm Chris is right.All yo have to do is go to barns and nobles and request 1 out of a 1,000 selections of HVAC books. The one I recommend for you is 4th edition Whittman and Johnson, "air...
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