J 21213-A Four Jack Dual Range Temperature Tester
Perform the following test if you suspect a malfunction in the refrigerant system due to abnormal system pressures.
Route the lines over the rear hood seal. Tape the gauges to the windshield in order to view the gauges.
Important: Ensure that you record the relative humidity and the ambient temperature conditions at the time of the test.
Start the timer.
• | The outlet air temperature |
• | The high-side pressure |
• | The low side-pressure |
Relative Humidity | Ambient Air Temperature | Maximum Low Side Pressure | Engine Speed | Maximum Center Air Outlet Temperature | Maximum High Side Pressure |
---|---|---|---|---|---|
40% | 26.7°C (80°F) | 220 kPa (32 psi) | 1500 RPM | 10.6°C (51°F) | 1 572 kPa (228 psi) |
26.7°C (90°F) | 268 kPa (39 psi) | 10.6°C 59°F | 1 931 kPa (280 psi) | ||
37.8°C (100°F) | 308 kPa (44 psi) | 18.9°C (66°F) | 2 075 kPa 301 psi | ||
43.3°C (110°F) | 317 kPa (46 psi) | 23.9°C (75°F) | 2 255 kPa (327 psi) | ||
48.9°C¹ (120°F)¹ | 310 kPa¹ (45 psi)¹ | 17.2°C¹ (63°F)¹ | 2 530 kPa¹ (367 psi)¹ | ||
50% | 21.1°C² (70°F)² | 193 kPa² (28 psi)² | 6.1°C² (43°F)² | 1 103 kPa² (160°F)² | |
70% | 21.1°C (70°F) | 234 kPa (34 psi) | 12.2°C (54°F) | 1 572 kPa (228 psi) | |
32.2°C (90°F) | 324 kPa (47 psi) | 18.3°C (65°F) | 2 006 kPa 291 psi | ||
80% | 26.7°C (80°F) | 268 kPa 39 psi | 14.4°C 58°F) | 1 731 kPa (251 psi) | |
¹Measure these values in MAX A/C with all of the windows closed. ²The compressor cycles ON and OFF. |