Service Infiniti QX4 since 1996 of release
1. Introduction
2. The maintenance instruction
3. Routine maintenance
4. The engine
5. Cooling and heating systems
5.1. Specifications
5.2. Antifreeze - the general data
5.3. Service of system of cooling
5.4. Removal, installation and check of serviceability of functioning of the thermostat
5.5. Removal, regenerative repair and installation of a radiator of system of cooling
5.6. Replacement of the water pump
5.7. Removal and installation of the fan of system of cooling
5.8. Air lines of distribution of air submitted to salon
5.9. System of an automatic air conditioning – a design and a functioning principle
5.10. A design of a refrigerator path of a central air of air
5.11. Compressor K/V, - the general information and a functioning principle
5.12. The Receiver-dehumidifier - the general information and service
5.13. Check of serviceability of functioning and service of systems of heating and an air conditioning
5.14. Diagnostics of a central air of air
6. Power supply systems and managements
7. Start and charge systems
8. A transmissionnaja line
9. Brake system
10. A suspension bracket and a steering
11. A body
12. An electric equipment
 












5-10-konstrukciya-refrizheratornogo-trakta-sistemy-kondicionirovaniya-vozdukha.html

5.10. A design of a refrigerator path of a central air of air

The refrigerator path of a central air has the standard organisation.


The scheme of the organisation of a refrigerator path of a central air of air

After an exit from the compressor the coolant is banished through the condenser, the dehumidifier arrives in a receiver/, is pumped over through the evaporator and comes back back in 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 assemblage.

Protection of system against excessive fall / of increase of pressure is carried out by means of the gauge-switch built in in a receiver, — as soon as pressure in system falls outside the limits an admissible range (upwards or downwards), the gauge-switch is disconnected, stopping compressor functioning.

Besides, the safety valve which is carrying out emergency dump of surpluses of a coolant in atmosphere at excess by pressure in a path of value at 3.73 кПа is built in a back part of the compressor .


On page back
5.9. System of an automatic air conditioning – a design and a functioning principle
On the following page
5.11. Compressor K/V, - the general information and a functioning principle