A/C System Pressure Zone Classification - Gas Engine With Electric Cooling Fan or RPO HP2
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
A/C Performance Table - Gas Engine With Electric Cooling Fan or RPO HP2
| Ambient Air Temperature | Relative Humidity | Service Port Pressure | Maximum Discharge Air Temperature | |
|---|---|---|---|---|
| Low Side | High Side | |||
| 13-18°C (55-65°F) | 0-100% | 165-257 kPa (24-37 psi) | 830-1180 kPa (120-171 psi) | 10°C (50°F) |
| 19-24°C (66-75°F) | Below 40% | 185-290 kPa (27-42 psi) | 1010-1340 kPa (147-194 psi) | 11°C (52°F) |
| Above 40% | 202-313 kPa (29-45 psi) | 990-1370 kPa (144-199 psi) | 13°C (55°F) | |
| 25-29°C (76-85°F) | Below 35% | 225-319 kPa (33-46 psi) | 1180-1470 kPa (171-213 psi) | 14°C (57°F) |
| 35-50% | 238-330 kPa (35-48 psi) | 1180-1490 kPa (171-216 psi) | 14°C (57°F) | |
| Above 50% | 248-352 kPa (36-51 psi) | 1190-1520 kPa (173-221 psi) | 16°C (61°F) | |
| 30-35°C (86-95°F) | Below 30% | 257-359 kPa (37-52 psi) | 1320-1610 kPa (192-234 psi) | 17°C (63°F) |
| 30-50% | 267-375 kPa (39-54 psi) | 1340-1650 kPa (194-239 psi) | 18°C (64°F) | |
| Above 50% | 281-399 kPa (41-58 psi) | 1360-1710 kPa (197-248 psi) | 20°C (68°F) | |
| 36-41°C (96-105°F) | Below 20% | 290-393 kPa (42-57 psi) | 1480-1760 kPa (215-255 psi) | 19°C (66°F) |
| 20-40% | 298-411 kPa (43-60 psi) | 1500-1820 kPa (218-264 psi) | 21°C (70°F) | |
| Above 40% | 313-429 kPa (45-62 psi) | 1540-1880 kPa (224-273 psi) | 22°C (72°F) | |
| 42-46°C (106-115°F) | Below 20% | 327-428 kPa (47-62 psi) | 1650-1910 kPa (239-277 psi) | 21°C (70°F) |
| Above 20% | 336-448 kPa (49-65 psi) | 1680-1980 kPa (244-287 psi) | 23°C (73°F) | |
| 47-49°C (116-120°F) | Below 30% | 367-474 kPa (53-69 psi) | 1830-2100 kPa (266-305 psi) | 25°C (77°F) |