Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
Supervised work may be done by persons who do not fulfil the
requirements according to item 2.1, figures 1 and 2.
Charging pressure tanks (for tanks from other countries, other
technical rules that are not mentioned here may apply).
♦ A compressed gas container may be charged only with the
compressed gas that is listed on its label, and only up to the
quantity indicated on the container in terms of pressure, weight
and volume (see Regulations for Pressure Tanks).
♦ A container that can be used for different types of compressed
gas must have a label on it listing the compressed gases with
which it may be charged. If the compressed gas concerned
has a tc ≥ -10°C (tc = critical temperature), the max. permis‐
sible charging weight in accordance with TRGS must also be
lk
indicated on the container before it is connected for charging.
♦ Compressed gas containers for which the max. permissible
charge overpressure at 15°C is given in bar must be charged
by pressure gauge (manometer). If during charging the tem‐
perature differs from 15°C, the pressure corresponding to the
different temperature should be determined by the charging
equipment; it must be ensured that the permissible positive
pressure for charging at 15°C in the compressed gas container
is not exceeded. To determine possible overcharging, the
charged containers must be checked through random pres‐
sure tests.
♦
Compressed gas containers on which the maximum permis‐
sible charging quantity is indicated by the net weight (charged
weight, permissible weight of the contents) in kilograms must
be charged according to weight (gravimetrically). The contain‐
ers must be weighed during charging and, to determine pos‐
sible overcharging subsequently subjected to a weight check
on a special scale. Scales for control weighing must be cali‐
brated.
♦ Under particular conditions, gases with tc ≥ +70°C from com‐
pressed gas containers with a capacity of no more than 150 l
may be charged into a compressed gas container with a ca‐
pacity of no more than 1000 cc. The conditions of the TRGS
apply to charging mechanic's bottles with liquid gas.
♦ For vehicle containers, different TRGS apply:
– For gases with tc ≥ +70°C.
– For technical gas mixtures with tc ≥ +70°C.
– Liquid, deep-cooled compressed gases in variance to those
stated under item 4 may be charged by volume (volumetrical‐
ly), if the charging device and/or the container with equipment
is equipped with devices for measuring or limiting the volume
of the charge and (except vehicle containers as specified un‐
der item 3) for measuring the temperature of the charge. When
charging by volume it must be ensured that the permitted
charge weight shown on the container is not exceeded. To
determine possible overcharging, the charged containers are
to be checked gravimetrically on a calibrated scale or – provi‐
ded that the pressurised gases are not highly toxic – volumet‐
rically. Volumetric checking presupposes that the appropriate
equipment is in place; charging and checking equipment must
be independent of each other.
♦ The charge and check measurements must not be performed
by the same person. Check measurements must be per‐
formed immediately upon conclusion of the charging process.
♦
Overcharged containers must be discharged immediately to
the permissible charge quantity and in a manner without haz‐
ard. Following this, the quantity of compressed gas charged
must be determined once again.
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Rep. gr.00 - Technical data
English 
