How do you determine what suction pressure should be in R410a air conditioning compressor suction line?

What is pressure in crankcase of reciprocating compressor?

...It will be what ever your suction pressure is.

Where is the low port on a 1987 Volvo 240 DL air conditioning system?

The low pressure port (Suction) and the high pressure port (Discharge) are both located on the back side of the compressor.

How do you determine what suction pressure should be in R22 air conditioning compressors suction line?

The proper suction pressure of any air conditioning or refrigeration system is determined by the type of refrigerant used and sometimes the amount of charge. : Suction pressure used is also directly related to the temperature required. : The temperature required in the evaporator relates to the pressure required in the suction line since, the fluid is at saturation in the evaporator. : Knowing the temperature required, use the fluid's saturation tables to find the corresponding pressure required.

How do you tell the suction line in central air conditioning from the high side line?

The suction line will be the larger line going into the compressor.

What is suction and discharge head?

These are terms used by refrigeration and air conditioning techs. The suction is refrigerant returning to the compressor from the evaporator, or the low side. The high side is the discharge or head pressure, where high temperature high pressure gas leaves the compressor to flow into the condenser. These systems should only be worked on by licensed and experienced techs.

Why does the ac compressor kick on and off?

The AC Compressor will kick on and off to maintain approx 32 psi on the suction side of your Air Conditioning system. This creates a continuous cycle of Freon which will change from a Liquid on the suction side into a Gas on the Pressure side. During this exchange from Liquid to Gas cold air is created to cool your space.

What is a suction line on an Air Conditioner?

The suction line connects the evaporator outlet and the compressor intlet. Low pressure refrigerator vapour is drawn from the evaporator to the compressor through this line.

Does low suction pressure have an effect on reciprocating compressors?

At very low suction pressure, the suction valves of reciprocating compressor will not work and there will be no gas in the cylinder during compression stroke, resulting some damage to the suction valves. If low suction pressure trip protection is not provided there can be some abnormal damage.

A refrigerator with a freon restriction would have what symptoms?

High head pressure; low suction pressure; overheated compressor

Where is suction and discharge s?

Answer: The terms suction and discharge are the terms refer to hydraulics. In hydraulics if the the liquid has to be lifted or pumped to the usage area the hydraulic pump will be used . This pump will have to functions that is first suction to lift the fluid and the discharge or delivery . The familiar words in pair are lift and discharge; suction and discharge. The specification of pump for these terms are suction head and discharge head.AnswerThe suction pressure refers to the pressure of the referigerant being "sucked" back into the compressor. The suction pressure is a critical variable in ensuring the accuracy of the refrigerant charge, along with the tepmerature of that line as well. The "superheat", or heat added to the vapor in that line can be monitored in this manner.You have not mention which suction pressure... Actually Where ever the suction is presented that pressure is called suction pressure.... and suction pressure in practical cases normally always less that atmospheric pressure and in case of delivery pressure it is oppositeSaying that suction pressure is " the pressure of the referigerant being "sucked" back into the compressor " is not accurate.Simply , the suction pressure of a pump is the absolute pressure of a fluid , measured at the inlet of the pump ( in your answer , the pump is the compressor , and the fluid is whatever refrigerant. )The discharge pressure , is the absolute pressure of the liquid measured at the outlet of the pump.Obviously, the discharge pressure is usually bigger than suction pressure.

What is suction?

An A/C compressor sucks refrigerant gas from the evaporator inside the car and compresses it into high pressure liquid. So the tubing that goes from the evaporator inside the car to the compressor is called the suction line.

Where is low pressure AC port?

It will be on the suction line (larger of the lines) between the compressor and the evaporator.