Impreza GT F4-2.5L Turbo (2009)
3. Connect the center manifold hose of the manifold gauge to the vacuum pump.
4. Operate the vacuum pump and open the low pressure and high pressure side valves. Next, open the center manifold hose valve, and begin
evacuation.
CAUTION: Make sure to perform evacuation using a vacuum pump.
5. Perform evacuation for 5 minutes or more, and when the low pressure gauge needle reaches - 100.0 kPa (-750 mmHg, -29.5 inHg) or higher,
close the center manifold hose valve, and stop the vacuum pump.
6. Leave alone for 5 to 10 minutes after closing the low pressure side and high pressure side valves, and check whether there is any change in the
low pressure gauge needle indication. If the needle position changes, this indicates a leak. Check the pipe and hose connections, and repair the
location with the problem. In this case, repeat again from Step 1).
7. If there is no leakage, continue evacuation for additional 20 to 30 minutes.
8. Close all valves and stop the vacuum pump.
9. Follow the can tap operation manual, install to the refrigerant can.