Service Station, Connecting With A/C Adapter Set - Adapter:VAG1785 To Refrigerant Circuit
-- Remove the cap from the connection with valve -A- (at A/C compressor).
-- Attach the O-ring -B- to the connection (8.9 mm; 1.8 mm).
-- Screw the Adapter:VAG1785/10 -C- onto the connection -B-.
-- Install the valve opener -D- with the appropriate seal in the charging hose connection.
The type of valve opener -D- and seals required depends on charging hose used (specific to manufacturer).
The quick-release coupling adapter is not required for connection on the low-pressure side of Audi vehicles.
Screw the charging hose -E- (to the service station) onto the A/C Adapter Set - Adapter 10:VAG1785/10 .
To minimize the amount of air and moisture penetrating into the charging hoses and thus into the refrigerant circuit, the charging hoses should be connected together as illustrated.
A - Charging hose to service station
B - Hand shut-off valve
C - Charging hose (short version) with valve opener for connection to adapter -D-
D - A/C Adapter Set - Adapter 10: VAG1785/10
E - Charging hose (short version) with quick-release coupling adapter (for vehicles with quick-release coupling adapter on low-pressure side).
-- Perform the planned tests and measurements.