User Manual

Page 4
TEST
The test function is necessary to check the A/C system.
1. Close all valves ( valve l, 2, 3, 4 and 18 )
2. Connect high pressure and/or low pressure hoses to the A/C system and open the service
hose valves.
3. Set the process selector on TEST and switch on main switch.
4. Turn on the A/C system and read the pressure on the high and low pressure gauges. The
correct pressures are stated in the instructions of the vehicle manufacturer.