Nissan Sentra B18 (2020-2025) Service Manual: Refrigerant Cycle
Refrigerant flow
|
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 through the condenser and liquid tank, the evaporator and returns to the compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.
Freeze Protection
To prevent the evaporator from freezing up, the evaporator air temperature is monitored by the intake sensor and the voltage signal to the A/C auto amp. makes the A/C relay go OFF and stop the compressor.
Internal Heat Exchanger
Internal Heat Exchanger
Transfers heat out of the liquid refrigerant, sub
cooling it below condensation temperature.
...
Refrigerant System Protection
Refrigerant System Protection
Refrigerant pressure sensor
The refrigerant system is protected against
excessively high or low pressures by the refrigerant pressure
sensor, located on the h ...
Other materials:
Push-button ignition switch illumination circuit
Description
Provides the power supply and the ground to control the push-button ignition
switch illumination.
Component function check
1.Check push-button ignition switch illumination operation
Consult active test
Turn the ignition switch ON.
Select engine sw illumi of bcm (intelligen ...
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
...
Common Item
Consult Function (bcm - Common Item)
CONSULT Function (BCM - COMMON ITEM)
BCM
Refer to CONSULT Function (BCM - COMMON ITEM).
...
