It's over charged, check the gauge if the air temp is about 80 degrees engine at idle 63 to 64 psi. 90 degrees out 70 psi with the A/C on max cool fan at high raise the rpms to about 1500 and the compressor should stay running and not go below 40 to 45 psi if the compressor starts to cycle on and off the low pressure switch is bad.
under charge
a starved evaporator.
ok this is the answer only if u tell me what evidence is there that the ziggurat existed
Overcharged system
add
Undercharge can cause HIGH superheat. Overcharge can cause LOW superheat. You need some superheat when charged correctly. How much is needed is depending on outdoor air temperature and indoor wet-bulb temperature.
discharge pressure is high, suction pressure is high superheat is low and subcooling is high.
Superheat depends on the type of metering device you are using in the equipment as well as the current state of the load. With a fixed orifice, the superheat will be high, about 20 to 30 degrees when the box is warm, down around 10-15 when the box is cold. With a txv, the superheat should be constant, normally between 10-15 degrees. It is best to check the superheat at the outlet of the evaporator. this will ensure that the compressor does not slug with liquid refrigerant.
Excessive superheat, caused by a low refrigerant charge.
Superheat was created on 2000-01-25.
excess superheat in a capillary tube systems means that there is ______ charge
We require to superheat the refrigerant to ensure that no liquid enters in the compressor.So in most of the cases degree of superheat is kept 2 to 3 deg c