R and V Works FF6 Información técnica descargar pdf (Pagina 8)

Compressor Application Manual

The compressor is a very important item in the

refrigeration circuit. Its function is to circulate the

refrigerant fluid inside the circuit.

1 - Use of compressors

The choice of a compressor for certain refrigeration

equipment depends on the following factors:

1.1 - Control Device

As mentioned above, every refrigeration

system needs a control device. This may

be an expansion valve or capillary tube.

In capillary-equipped circuits, the

pressures on the suction and discharge

sides are equal when the compressor is

stopped. In this kind of circuit, the

compressor is equipped with a low

starting torque motor.

In an expansion valve circuit, however,

refrigerant only flows through the valve

when the compressor is switched on. So,

the pressure between the suction and

discharge are not equal when the

compressor is stopped. In this case, the

compressor is equipped with a high

starting torque motor.

Hermetic

compressor

III

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 79 80

Sin comentarios

R and V Works FF6 Información técnica Pagina 8