Low-pressure, low-temperature, superheated refrigerant enters the compressor and is compressor

(a)  

changing it to a high-pressure, high-temperature, superheated

(a)  

It then moves to the condenser where some of the heat is removed, de-superheating and condensing it into a

(a)  

It then flows to the metering or expansion device as a high-pressure, subcooled liquid.

(a)  

Before it leaves the condenser as a high-pressure liquid, the liquid refrigerant is to a point below the liquid saturation temperature

(a)  

As the refrigerant flows through the metering device, the pressure of the liquid is , causing a small percentage of the liquid to flash to a vapor (flash-gas), lowering the temperature of the remaining refrigerant to its saturation temperature.

(a)  

causing a small percentage of the liquid to flash to a (flash-gas), lowering the temperature of the remaining refrigerant to its saturation temperature.

(a)  

The low-pressure, low-temperature refrigerant flows into the as a low-temperature saturated refrigerant.

(a)  

As the refrigerant absorbs heat, it evaporates into a low-temperature

(a)  

During this process, the refrigerant vapor is superheated above its saturation temperature and then enters the

(a)  

From the suction line, refrigerant enters the as a low-pressure, low-temperature, superheated vapor to repeat the cycle.

(a)  

The compressor and the are the dividing points between the low-pressure and high-pressure sides of the system

(a)  

The , low-pressure, compound gauge (blue)

(a)  

high-pressure gauge (red), are attached to the manifold to measure system pressures

(a)  

The compound pressure gauge measures system pressure for the low side in pounds per square inch gauge (psig) a in inches of mercury

(a)  

An electronic manifold may have combined temperature probes to measure refrigerant line temperatures for calculating system and subcooling

(a)  

The EPA recommends that hoses be equipped with low-loss fittings or valves that manually close, or which close automatically, to minimize loss when hoses are disconnected.

(a)  

Stratospheric ozone helps form the earth's protective shield. The ozone layer protects the earth from ultraviolet radiation from the sun

(a)  

A COMPRESSOR CANNOT COMPRESS A (a)  

Ozone in the stratosphere consists of molecules containing oxygen atoms

(a)