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5.10. Design of a refrigerator path of central air of air
The refrigerator path of central air has the standard organization.
Scheme of the organization of a refrigerator path of central air of air
After an exit from the compressor the coolant is banished via the condenser, arrives in a receiver / dehumidifier, is pumped over via the evaporator and comes back back to the compressor. Process of transition of a coolant in a gaseous state is supervised from the outside by means of the evaporator of the broad valve built in assembly.
Protection of system against excessive fall / increase of pressure is carried out by means of the sensor switch built in in a receiver — as soon as pressure in system falls outside the limits an admissible range (up or down), the sensor switch is disconnected, stopping compressor functioning.
Besides, the safety valve which is carrying out emergency dumping of surpluses of a coolant in the atmosphere at excess by pressure in a path of value in 3.73 kPas is built in a back part of the compressor.