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You will be checking the pressures at the same time......
low side 25 psi high side 125 psi
Yes refrigerant temperatures and pressures in the cooling mode of a heat pump is the same. They are both in the suction side and the discharge side of the system.
They are used to monitor and check that the a/c system is working correctly......
High side is 413 psi and the low side is 336 psi
The "high side" of a car a/c typically reaches 300+ psi.
When checking a/c system operations. There are two gauges that measure high side and low side pressures.
Using a set of a/c gauges put the blue hose on the low side (suction side) and the red hose on the high side (discharge side) to first check the pressures..... Add freon if needed and keep the pressures as follows.. low side readings between 30 to 40psi and the high side between 200 to 250psi depending on the outside temperature…………….
Low side between 60 & 75 or so, high side depends on the temperature outdoors. Capacity of the unit is not a factor.
It isn't that simple. Pressures will be based on a number of factors, including ambient air temperature, elevation, and humidity. The pressures should read in accordance to the pressure/temperature chart for an R134a system.
High side and low side refer to the pressures in the two halves of the system. AC works by compressing refrigerant in the compressor ( the beginning of the 'high side'), cooling in the condensor it, and then expanding it to absorb heat ( where it enters the low side). Then the low-side piping takes is back to the compressor, where the cycle starts over.
Manifold gauge/gauges are used to check both the high and low side pressures of the refrigerant inside the a/c system...................