Refrigerant Flow
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
|
1. |
Electric compressor |
2. |
Pressure relief valve |
3. |
Liquid tank |
|
4. |
Refrigerant pressure sensor |
5. |
Condenser |
6. |
Expansion valve |
|
7. |
Evaporator |
8. |
Blower motor |
A. |
High-pressure gas |
|
B. |
High-pressure liquid |
C. |
Low-pressure liquid |
D. |
Low-pressure gas |
|
E. |
Suction port |
F. |
Discharge port |
G |
Outside air |
Refrigerant Flow
The refrigerant from the compressor flows though the condenser with liquid tank, evaporator, and returns to the compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.
Freeze Protection
To prevent evaporator from freezing up, the evaporator air temperature is monitored and the voltage signal to the A/C auto amp. makes the A/C relay go OFF and stop the compressor.