High side and low side refer to the pressure in the ac system. Ie The high side is the high pressure line and low side is the low pressure line.
No, the liquid (discharge) line is the high pressure side. The suction line is the low pressure side.
normal low side operating temperature for an AC system using R134-a refrigerant is between 21 and 35 p.s.i. high side pressure between 190-220 p.s.i.
Red is the high side.. The low side is blue..
The compressor changes the low pressure gas into a high pressure gas which then has the heat of compression removed in the condensor to turn it into a high pressure liquid.
The difference would be due to the different refrigerants used by each which is not given. Also the refrigerator will have a more constant condenser pressure because it is within an environment where the ambient temperature varies little.END
You need to specify what kind of system. Automotive AC systems and home AC systems use different refrigerants. That, along with the temperature/pressure relationship and ambient air temperature, all factor into what your high pressure (and, consequentially, low pressure) side should read on your manifold pressure gauge.
The high pressure side.
It is difficult to determine the different pressure ports on your air conditioning compressor without knowing the make and model of the automobile. In most cases the low pressure port is on the right hand side of the air conditioner compressor.
A low pressure gradient is a state where the difference in the fluid density between one side of a divider is close to the fluid density of the other side. A high pressure gradient is a state where the difference in the fluid density between one side of the divider is very different to the fluid denisity of the other. For instance, a cell wall is permiable and allows some matter to migrate across the barrier through diffusion. If your blood fluid is carrying a small amount of salt compared to a high salt content on the interior of the cell, there is a high pressure gradient between the two fluid medium. The cell will swell and diffusion will try to balance the salt content from one side of the cell wall to the other by migrating fresh water into the cell and migrating salt to the outside.
On a manifold gauge set, there are two gauges. The gauge encased in red measures pressure on the high pressure (discharge) side. That's the "high side gauge". The other will be incased in blue, and measures vacuum pressure on the low side.
its can be a restriction in liquide line