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Air conditioning systems with refrigerant R1234yf - General information - Edition 07.2017
CAUTION
Risk of explosion from overfilling refrigerant reservoirs.
Refrigerant can expand and cause reservoirs to burst if they are
overfilled.
– Use a refrigerant tank with safety valve.
– Never exceed the permissible fill level of the refrigerant tank.
Note
Depending on the version of air conditioner service station and
the measures to be performed, there is a minimum volume of re‐
frigerant, refrigerant oil and UV leak detection additive that must
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 it is necessary to discharge the air conditioner service station
lk
(e.g. because contaminated refrigerant was extracted), all fil‐
ters and dryers must be renewed (do not remove filter and
dryer from the air-tight transport package until immediately
before installation to keep absorption of moisture as low as
possible).
♦ If it is 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 refrigerant that has been
or is to be extracted from the air conditioner service station
complies with the specifications (is not contaminated), it can
be filled into a recycling cylinder, if necessary, and then reused
⇒ Operating instructions air conditioner service station .
♦ Refrigerant cylinders that have been charged with contamina‐
ted or used refrigerant are referred to as “recycling cylinders”
or “R cylinders”.
♦ Always evacuate recycling cylinders before the first filling (re‐
frigerant cylinders containing air must not be filled with refrig‐
erant).
♦ Different types of refrigerant must not be mixed together (mix‐
tures of refrigerant cannot be recycled, but must be disposed
of instead). If the composition of the contents in the cylinder is
not clear, the gas processing / gas disposal company must be
informed of this
⇒ “2.13 Filling contaminated refrigerant in a recycling cylinder
for analysis, processing or disposal”, page 161 and
⇒ “6.2.17 Returning contaminated R1234yf refrigerant for
analysis, processing or disposal”, page 25 .
CAUTION
Risk of explosion from overfilling refrigerant reservoirs.
Refrigerant can expand and cause reservoirs to burst if they are
overfilled.
– Use a refrigerant tank with safety valve.
– Never exceed the permissible fill level of the refrigerant tank.
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
English 