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2.1.5 Connections with Primary Sealing Valve
(Ball Valve)
WARNING
Before unscrewing connection, connect service station and
extract refrigerant. Refrigerant circuit must be empty to avoid
possible injury.
Connection With High-Pressure Valve
1 - Socket with internal thread (soldered in )
2 - O-ring (version and identification: black or colored. Refer to
the Electronic Parts Catalog (ETKA).
3 - Valve with an external thread and groove for the O-ring
(identification: ball valve).
4 - Cap seal
5 - Sealing cap
Note
♦
After connecting, install the hand wheel for the service cou‐
pling just far enough into the quick-release coupling adapter
until the valve is securely opened inside the service connec‐
tion (pay attention to the pressure gauge, do not put too much
pressure on the valve).
♦
For removing and installing the valve -B- when the refrigerant
circuit is evacuated, for example, use an adapter from the
Socket for A/C valves -T10364- .
♦
There are different versions of these valves (with internal or
external threads). The tightening specifications will also differ.
The valves -3- with an M12 x 1.5 mm external thread have a
tightening specification of 9 Nm +- 1 Nm.
♦
There are different versions of these valves, valve inserts and
their caps. Be sure to use the right versions. Refer to the Elec‐
tronic Parts Catalog.
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
2. Description and Operation 59
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