TXV vs. OrificeTube Car AC Systems Operation and Diagnostics AxleAddict
Clutch Cycling Switch In a (CCOT) cycling clutch orifice tube system, there's a constant pressure drop from the fixed orifice tube. It doesn't change its output according to demands like an expansion valve. A clutch cycling switch activates and deactivates the compressor clutch instead.
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An orifice tube and expansion valve both function as the dividing point between the high pressure and low pressure sections of the A/C system. The small diameter of the passage, while critical for the cooling system, makes an orifice tube susceptible to becoming clogged from debris within the system.
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The auto A/C accumulator system was manufactured to eliminate moisture, debris and oil and to stop the remaining refrigerant from going back to the A/C compressor. The accumulator has a desiccant which absorbs moisture, and can be found within the air conditioning's low pressure side or suction. Below is an overview of its layout.
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1. Thermal Expansion Valve (TXV) System The first type of system, the Thermal Expansion Valve (TXV) system, uses a thermal expansion valve (TXV) to provide the pressure drop in the refrigerant. The TXV is a variable control valve located at the entrance of the evaporator.
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An orifice tube is simply a refrigerant metering device to control the rate of flow of refrigerant into the evaporator located in your dash. In the illustration below, you'll see that low pressure gas flows out of the evaporator coil and into the accumulator.
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IN AN ACCUMULATOR AND ORIFICE TUBE (CCOT) SYSTEM THE ACCUMULATOR IS LOCATED ON THE LOW SIDE OF THE A/C SYSTEM, BETWEEN THE EVAPORATOR OUTLET AND THE SUCTION SIDE OF THE COMPRESSOR. All orders are typically shipped within 24-48 hours. UPS Expedited shipping cutoff is 3pm Eastern Time M-F.
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AC is a fairly complex system. While it's engaged and disengaged with a simple push of a button, there's a lot more that goes on behind the scenes to make it work. An AC in a vehicle is made of numerous components such as the compressor, evaporator, condenser, AC accumulator (dryer), and orifice tube.
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A (CCOT) cycling clutch orifice tube system has an accumulator and a cycling switch attached. The accumulator is on the low side of the system, after the orifice tube. Orifice tubes can become clogged and severely hamper A/C performance. It is essential to replace the old tube with the correct tube. Follow the manufacturer's recommendations.
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Where is the orifice tube located? Here's where the orifice tube is located Auto AC orifice tube locations Because of the way an orifice tube works, it's usually located on the inlet to the evaporator coil. However, on some vehicles the orifice tube location varies.
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A: One of the most important parts of a vehicle's air conditioning (A/C) system is the orifice tube, which controls the amount of refrigerant that enters the evaporator. Its exact location can vary depending on the vehicle's make and model, but you can typically find the orifice tube between the condenser and the evaporator in the small.
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The orifice tube is a component of the car A/C system. It is a tube with a defined length and width that expands the refrigerant. Unlike the expansion valve, it cannot regulate the flow rate or superheating. The orifice tube is always connected to the accumulator at the outlet of the evaporator. Orifice tubes are comprised of three main parts:
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How Your Car's AC Works Related: AC & Climate Control Print Share Surely you know what air conditioning is, but do you know how it works? Contrary to what you might expect, AC systems do not create cool air. Instead, they cool the air by removing hot air and moisture.
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The 2 main A/C systems explained: Orifice Tube/Accumulator System vs. Expansion Valve/Drier System. SEE MORE AUTOMOTIVE A/C TECH TIPS AT: http://bit.ly/gpdte.
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HowTo AC Accumulator / Orifice Tube System Layout Introduction An automobile's AC system keeps the passenger cabin cool. The AC system includes components such as the compressor, evaporator, condenser, accumulator and orifice tube. Here, we focus on the working and other aspects of the accumulator and orifice tube. Working
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Automotive air conditioning explanation of an orifice tube system with the compressor, orifice tube, evaporator core, accumulator tank, and condenser, It's cable reimagined No DVR space.
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1. AC system performing worse than usual and blowing warm air One of the first symptoms of a problem with the AC expansion valve or orifice tube is an underperforming AC system. The AC expansion valve and orifice tube work together to regulate the flow of the AC system.