Refrigerant: Testing and Inspection

AIR CONDITIONING: REFRIGERANT: ON-VEHICLE INSPECTION

1. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

(a) This is a method in which trouble is located by using a manifold gauge set. Read the manifold gauge pressure when the following conditions are established.

Test conditions:

* Temperature at the air inlet with the switch set at RECIRC is 30 to 35°C (86 to 95°F)

* Engine is running at 1500 rpm

* Blower sped control switch is in the "HI" position

* Temperature control dial is in the "COOL" position

* A/C switch is ON

* Doors fully open

(1) The refrigeration system functions normally.

Gauge reading:

Low pressure side
0.15 to 0.25 MPa (1.5 to 2.5 kgf/cm2, 21.3 to 35.6 psi)

High pressure side
1.37 to 1.57 MPa (14 to 16 kgf/cm2, 199 to 228 psi)

(2) Moisture present in refrigeration system.