Read the text again and answer the questions. 1 Where does all the mixture enter?

1 Where does all the mixture enter?

2 How does the refrigerant leave the evaporator?

3 What can a drop of liquid cause in compressor?

4 Why has the vapour to be superheated?

5 What is superheated also used for?

6 Why is the thermostatic valve of special importance?

7 What are the advantages of the electronic valve?

8 What are the most reliable valves equipped with?

Read and translate the text from ex.3.

Write the questions to the sentence

1In a flooded evaporator the expansion of the refrigerant is seldom controlled by the superheat as in the direct expansion evaporator.

2 When the saturated mixture rises through the evaporator, the pressure decrease.

Vocabulary.

direct – прямой, непосредственный,

pure - чистый,

droplet – капать (здесь)

cause – являться причиной

liquid hammering- гидравлический удар

damage - повреждение

superheated - перегрев

the vapour has to be superheated - пар перегревают

thermostatic - терморегулирующий

mixture- смесь

advantage- преимущество

reliable- надежный

pulse modulated motor- импульсный электродвигатель

a step motor – шаговый электродвигатель

heat motor – термоэлектрический привод

to equip-оснащать

saturated- насыщенный

flooded- утопленный

pressure- давление

Flooded flow