Pression Climatisation Automobile Pdf — Tableau

| Ambient Temperature (°C) | Low-Pressure (bar) | High-Pressure (bar) | |--------------------------|--------------------|---------------------| | 20°C | 2.2 – 3.0 | 11 – 15 | | 25°C | 2.5 – 3.5 | 13 – 18 | | 30°C | 2.8 – 4.0 | 15 – 22 | | 35°C | 3.2 – 4.5 | 18 – 26 | | 40°C | 3.5 – 5.0 | 22 – 30 | For pure refrigerants, pressure and temperature are directly linked when the refrigerant is in a saturated state (liquid + vapor mix). Example for R134a:

| Ambient Temperature (°C) | Low-Pressure Side (bar) | High-Pressure Side (bar) | Typical Center Vent Temp (°C) | |--------------------------|-------------------------|--------------------------|-------------------------------| | 15°C (59°F) | 1.7 – 2.2 | 10 – 13 | 10 – 12 | | 20°C (68°F) | 2.0 – 2.5 | 12 – 16 | 8 – 10 | | 25°C (77°F) | 2.2 – 2.8 | 13 – 18 | 6 – 8 | | 30°C (86°F) | 2.5 – 3.2 | 15 – 20 | 4 – 7 | | 35°C (95°F) | 2.8 – 3.5 | 18 – 24 | 5 – 8 | | 40°C (104°F) | 3.2 – 4.0 | 22 – 28 | 8 – 12 | Basse pression (côté aspiration) – Haute pression (côté refoulement) 4. Pressure Table for R1234yf (New vehicles, 2017+) R1234yf operates at slightly higher low-side and similar high-side pressures compared to R134a. tableau pression climatisation automobile pdf

| Pressure (bar) | Saturation Temp (°C) | |----------------|----------------------| | 1.0 | -26.4 | | 1.5 | -18.8 | | 2.0 | -12.2 | | 2.5 | -6.9 | | 3.0 | -2.3 | | 3.5 | 1.7 | | 4.0 | 5.3 | | 5.0 | 11.6 | | Ambient Temperature (°C) | Low-Pressure (bar) |