Refrigerant Pressure With Manifold Gauge Set

Refrigerant Pressure with Manifold Gauge Set

PROCEDURE

REFRIGERANT GAS PRESSURE INSPECTION

PREPARATION TOOL:
Manifold gauge set
Thermometer

1. Prepare the vehicle.

NOTE: Check that the ambient temperature is 25 - 40°C (77 - 104°F) and humidity is 30% - 80%.
- Place the vehicle in the shade and windless condition, and open the front hood.
- Open the front windows and close all doors.

2. Connect the manifold gauge set, and then check the refrigerant pressure.
1. Connect the manifold gauge set, and then start the engine.
2. Set the vehicle to the following conditions.






3. With the condition of Step 2, idle the engine for 30 minutes.
4. Read the gauges for high pressure and low pressure of the manifold gauge.

3. Measure the air flow outlet temperature at the air vent grille, ambient temperature and humidity.

NOTE: Obtain the air flow outlet temperature by measuring the average temperature of center grille assembly and side grille assembly.

4. High and low pressures and air flow outlet temperature in relation to the ambient temperature and humidity are within the specified range shown in the graph below.






5. Refer to "DIAGNOSIS WITH SYMPTOM" if the inspection result is not within the standard Refrigerant Pressure With Manifold Gauge Set.