Get Air conditioning system Working with air conditioner service station -> 2.9 Charging refrigerant in reservoir Guide for Volkswagen Sharan VAN Second Generation (2010-2023)

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Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017

Note

♦ Stored in the air conditioner service station is a function via

which iis switched to a specific operating mode when deac‐

tivated. The whole refrigeranis extracted from the charge

hoses into the air conditioner service station with this function.

♦ If the handwheels of the two service couplings are noun‐

screwed when this function is activated, refrigerancould be

extracted from the vehicle's refrigerancircuit.

– Extract the refrigeranfrom the two charge hoses using the air

conditioner service station as instructed in the relevanoper‐

ating manual ⇒ Operating instructions of air conditioner serv‐

ice station .

Note

♦ If, on an air conditioner service station with a service coupling

thadoes novento the outside, this process takes longer

than approx. 2 minutes or quite a large amounof refrigeran

is extracted, this suggests thathere is a faulin one of the

valves in a service connection.

♦ If, on an air conditioner service station with a service coupling

thadoes vento the outside, this process takes longer than

approx. 2 minutes, this suggests thathere is a faulin one of

the valves in a service coupling.

Note

Erroneous extraction from vehicle's refrigerancircuit.

– First unscrew (close) the handwheels of the quick-release

coupling adapters.

– Then extracthe refrigeranfrom the two charge hoses using

the air conditioner service station.

– Switch off the air conditioner service station (and isolate ifrom

the power supply if necessary) ⇒ Operating instructions air

conditioner service station .

– Separate the quick-release couplings from the service con‐

nections of the refrigerancircuit.

– Screw the sealing caps on the service connections (see vehi‐

cle-specific refrigerancircuit) ⇒ Heating, air conditioning;

Rep. gr. 87 ; Refrigerancircuit; System overview - refrigeran

circui.

2.9

Charging refrigeranin reservoir

– Connect the cylinder with fresh R1234yf refrigeranto the

service coupling on the high pressure side of the air condi‐

tioner service station ⇒ Operating instructions air conditioner

service station .

– Perform a gas analysis on the refrigeran(from the cylinder

supplied) with which the system is to be charged using the air

conditioner service station

⇒ “2.3 Performing gas analysis of refrigerant”, page 134 .

•

The procedure described in the operating manual for your air

conditioning service station is to be followed ⇒ Operating

manual for air conditioner service station .

2. Working with air conditioner service station

153

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Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017

CAUTION

Risk of explosion from overfilling refrigeranreservoirs.

Refrigerancan expand and cause reservoirs to bursif they are

overfilled.

– Use a refrigerantank with safety valve.

– Never exceed the permissible fill level of the refrigerantank.

Note

Depending on the version of air conditioner service station and

the measures to be performed, there is a minimum volume of re‐

frigerant, refrigeranoil and UV leak detection additive thamus

be in the respective supply tank of the air conditioner service sta‐

tion ⇒ Operating instructions air conditioner service station

2.10

Emptying air conditioner service station

Note

♦ If iis necessary to discharge the air conditioner service station

(e.g. because contaminated refrigeranwas extracted), all fil‐

ters and dryers musbe renewed (do noremove filter and

dryer from the air-tightransporpackage until immediately

before installation to keep absorption of moisture as low as

possible).

♦ If iis necessary to empty the air conditioner service station

(e.g. because certain measures have to be performed on the

air conditioner service station and the refrigeranthahas been

or is to be extracted from the air conditioner service station

complies with the specifications (is nocontaminated), ican

be filled into a recycling cylinder, if necessary, and then reused

⇒ Operating instructions air conditioner service station .

♦ Refrigerancylinders thahave been charged with contamina‐

ted or used refrigeranare referred to as “recycling cylinders”

or “R cylinders”.

♦ Always evacuate recycling cylinders before the firsfilling (re‐

frigerancylinders containing air musnobe filled with refrig‐

erant).

♦ Differentypes of refrigeranmusnobe mixed toher (mix‐

tures of refrigerancannobe recycled, bumusbe disposed

of instead). If the composition of the contents in the cylinder is

noclear, the gas processing / gas disposal company musbe

informed of this

⇒ “2.13 Filling contaminated refrigeranin a recycling cylinder

for analysis, processing or disposal”, page 161 and

⇒ “6.2.17 Returning contaminated R1234yf refrigeranfor

analysis, processing or disposal”, page 25 .

CAUTION

Risk of explosion from overfilling refrigeranreservoirs.

Refrigerancan expand and cause reservoirs to bursif they are

overfilled.

– Use a refrigerantank with safety valve.

– Never exceed the permissible fill level of the refrigerantank.

There are various ways to empty an air conditioner service sta‐

tion , observe the operating instructions of the air conditioner

154

Rep. gr.87 - Air conditioning system

Air conditioning system Working with air conditioner service station -> 2.9 Charging refrigerant in reservoir for Your Volkswagen Sharan VAN Second Generation (2010-2023)

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