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Gneed superheat ratings for mm# .s .sc

Gneed superheat ratings for mm# .s .sc 130361de

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Superheat is determined by outside temp and inside temp. Usually the superheat will be 15-25 degrees to get good cooling back to the compressor.

Posted on Aug 19, 2010

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What range should your super heat be on txv ?


I normally don't take a superheat reading when I have a txv. That can fool you. A sub cooling reading is the best when a txv has been installed. I've seen normal temp readings of 0° superheat and 16-20° sub cooling with "factory specs". And that was normal! That valve will open and close changing superheat values. Sub cooling is the way to go! Find some manufacturer specs if possible.

May 27, 2015 | Heating & Cooling

1 Answer

What range should your super heat be on the txv ?


I normally don't take a superheat reading when I have a txv. That can fool you. A sub cooling reading is the best when a txv has been installed. I've seen normal temp readings of 0° superheat and 16-20° sub cooling with "factory specs". And that was normal! That valve will open and close changing superheat values. Sub cooling is the way to go! Find some manufacturer specs if possible.

May 27, 2015 | Heating & Cooling

1 Answer

My Goodman condenser which was recently replaced is making a severe swashing noise when it stops. Like a back flush or something. Need to know if this standard.


Normally if it does not sound right, it is not right. By your discription it sounds like your compressor is having a problem with flood back caused by a txv not metering properly, or an overcharged system. You will need a tech who can determine superheat and subcool for your refrigerant system. Find a tech who can determine these values. Superheat and subcool is normally around 8 -12 degrees. Superheat is the amount of additional heat the refrigerant picks up in the evaporator once it is turned to gas and is needed to keep liquid refrigerant from flooding back to the compressor. Compressor are designed to compress gas not liquid. Subcool is the additional cooling refrigerant undergoes once the refrigerant turns back into into liquid in the conderser. Subcool ensures the refrigerant remains in liquid form until it reaches the metering device. Only liquid suppied metering devices will pass the required amount of refrigerant to achieve the rated cooing or heating rates. If it is liquid flood back, your compressor will be damaged and will need to be replaced. Hope this helps

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2000 monte carlo. Crew control went out while driving now it won't work


Cruze control is disabled anytime a abs or check engine light is illuminated. Gneed have vechiel scanned. What lights stay on completely after startup? Could be as simple as removing gas cap and piutting it back on. Very unlikely but first thing I do when customers vehiel has p0446 evap small leak.

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1 Answer

I HAVE A westinghouse a/c system in my home,one compresser for the main home an another for the up stairs.A REPAIR MAN COME TO THE HOMEM,CHECKED THE SYSTEM AND SAID I NEEDED MORE FREEON.HE ADDED SOME...




When technicians take an air conditioning course, one of the first things they learn is to use superheat to charge a fixed orifice air conditioning system.

Superheat is not hard to deal with, but the technician needs to take four good measurements.

To get the actual superheat, the technician measures suction line pressure and suction line temperature. When he reads suction line pressure, he reads the *F scale on his gauge. That's the boiling point of that refrigerant at that pressure. To get actual superheat, subtract the suction line boiling point temperature from the measured temperature of the suction line.

To read get the required superheat from the most common A/C manufacturer's superheat charts, the technician measures indoor "wet bulb" temperature and outdoor air temperature ("dry bulb"). Using these two temperatures the technician can look up the required superheat on most A/C manufacturers' superheat charts. Required superheat's can vary from 5 *F to over 45*F depending on the conditions (indoor wet bulb and out door dry bulb). The higher the load, the higher the required superheat.
The technician adds or subtracts refrigerant to decrease or increase the actual superheat to match the required superheat.

Superheat is the temperature difference between the boiling point of the refrigerant in the evaporator and the actual temperature of the refrigerant gas after the evaporator. It is the "extra" temperature (or temperature rise) the refrigerant picks up in the evaporator after it boils.

When charging the system, the technician adds as much refrigerant as he can. But if he adds too much (overcharge), he risks flooding the compressor with liquid refrigerant.

The biggest risk of flooding is under low load conditions: low outside temperatures and low indoor wet bulb temperatures. The refrigerant boils off late in the evaporator. To make sure the refrigerant is all boiled off before the end of the evaporator, the the A/C manufacturer's required superheat chart directs the technician to stop adding refrigerant when the suction line temperature gets down to within a few degrees of the boiling point inside the evaporator. The "few degrees" is the superheat. At low load conditions, the superheat is often specified as five or six degrees. It's a safety factor to make sure no liquid gets to the compressor.

At other load conditions, as determined by outdoor air and indoor wet bulb temperatures, the required superheat is given by a the superheat chart supplied by the A/C manufacturer. The higher the temperatures, the higher the load and the higher the required superheat.

Doing a superheat analysis is the best way to insure that an air conditioner has the proper charge.

Jun 13, 2011 | Refrigerators

1 Answer

Charging chart missing. Goodman 4-ton AC (model CK 49-18) R-22 fixed orifice


Hello, in order to find if the sytem is operating correvtly you should measure the outdoor dry bulb temp and indoor wet bulb temps, this will givenyou a target superheat. Pressures will vary always use superheat. If superheat is higher than target add refrigerant if it is lower remove refrigerant.

Jun 08, 2011 | Heating & Cooling

1 Answer

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1930 where 26,262 were made. http://www.mchenry-sc.org/Engineering/Model_12.htm

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Where is the seat belt motor in a 1991 saturn sc


Remove the pillar moldings "b" and the trim along the track. There are 10 mm nuts and bolts holding the track. The motor is in the bottom of the "B" pillar

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1 Answer

Superheat Problem


Superheat is the dif. between suction temp on the gauge and temp on the suction line. Make sure you are measuring the right line/ Normal superheat is between 10 to 14 degrees depending on line length. Russ

Aug 15, 2009 | Heating & Cooling

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