Charging vehicle air conditioning system

During the next 5 minutes check vehicle system seal by ensuring vacuum reading on left-hand pressure/vacuum gauge or an electronic vacuum gauge (connected to fitting 1) does not drop and no leaks are noted. Continue with interrupted operation until above pressure gauge shows a vacuum reading of 10 mbar. View of parts used to connect electronic vacuum gauge 1. Fitting 2. Electrical power point

CHARGING VEHICLE AIR CONDITIONING SYSTEM

Before charging vehicle air conditioning system, check that level of coolant in device dispensing cylinder corresponds to an amount much greater than the amount to be added to the system because the device goes off automatically when the minimum level is reached. Add 70 grams to the amount of fluid specified for the system because this represents the amount left in the connection lines when these are disconnected from the system needle valves. If the system cannot be charged fully because pressure in system is at the same level as the pressure in the dispensing cylinder, close HIGH cock, start vehicle engine, activate air conditioning system (fan set to maximum cooling and top speed), slowly open LOW cock and reclose together with REF cock when system charging is complete.

TRANSFERRING COOLANT FROM DEVICE DISPENSING CYLINDER TO A CONTAINER (CANISTER)

Before beginning transfer, ensure that recipient is approved for pressures up to 35 bar and set up a vacuum inside (at least -0.1 bar) Use only the red hose for the transfer operation (high pressure side) and connect to recipient service valve. Note that recipient must be filled solely with an amount equivalent to less than 80% of its volume.

TRANSFERRING COOLANT FROM CANNISTER TO EQUIPMENT DISPENSING CYLINDER

If this operation becomes necessary while charging the vehicle air conditioning system, first empty the system and recover all the coolant added.

CHECKING PRESSURES IN VEHICLE SYSTEM

Pressure values can be read directly off the two device gauges (blue low pressure and red high pressure) after connecting the two device hoses to the system.