Symbols; Safety; Glossary; Guidelines For The Handling Of Refrigerant - MAHLE AIR-NEX 9380 Service Manual

Operations which require careful reading of the manual's Operations which require careful reading of the manual's
instructions are highlighted with this symbol. instructions are highlighted with this symbol.
3.2

Symbols

This paragraph describes the safety symbols which may be This paragraph describes the safety symbols which may be
posted on the service equipment.
3.2.1

Safety

ALTERNATING
CURRENT
SAFETY GROUNDING
CONSULT
INSTRUCTIONS
MANUAL
ATTENTION!
ELECTROCUTION
HAZARD
CAUTION !: DO NOT
REMOVE THE COVER
(maintenance
technicians only)
USE
GLOVES
WEAR
GOGGLES
USE
SAFETY SHOES
3.3

Glossary

To make the reading of this manual easier, we have To make the reading of this manual easier, we have
prepared the list of the most important technical terms used prepared the list of the most important technical terms used
in the manual.
Refrigerant: Refrigerant fluid used in
advanced motor vehicle A/C systems.
The following refrigerant fluids
may be used:
•
R-1234yf CH2CFCF3 2,3,3,3-
Tetrafluoropropene.
•
C2H2F4
R-134a
Tetrafluoroethane
A/C system: air conditioning system.
Equipment: A/C service
recovering, recycling, draining
charging the A/C system.
External tank: Refrigerant bottle used to
fill the internal tank.
Internal cylinder: cylinder for refrigerant
storage.
Phase: Performance of a single function.
THE
PROTECTIVE
PROTECTIVE
ANTI-SMASH
- 1,1,1,2-
station for
and
Cycle: Sequence of steps.
Recovery: Extraction of refrigerant from
the vehicle.
Recycling: Cleaning Cleaning of of
includes: separating out oils, removal of includes: separating out oils, removal of
non-condensable condensable gas gas
single/multiple pass through filters to single/multiple pass through filters to
reduce humidity, acidity and particulate reduce humidity, acidity and particulate
content of the fluid.
Disposal: disposal of refrigerant for refrigerant for
storage storage followed followed
destruction/scrapping by an authorised destruction/scrapping by an authorised
waste management centre.
Vacuum cycle: Draining out of a motor Draining out of a motor
vehicle A/C system and separation out of vehicle A/C system and separation out of
condensed matter and humidity, using condensed matter and humidity, using
only the vacuum pump.
Oil charge: Charge of oil into an A/C Charge of oil into an A/C
system to ensure the correct charge as system to ensure the correct charge as
specified by the vehicle's manufacturer.
Charge: filling of refrigerant into the A/C filling of refrigerant into the A/C
system in the amount specified by the system in the amount specified by the
manufacturer.
System flushing: Cleaning phase for the Cleaning phase for the
removal of possible polluting substances ossible polluting substances
from the A/C system or parts of it.
Non condensable gas:
stored in gaseous phase, including air stored in gaseous phase, including air
and nitrogen.
3.4

Guidelines for the handling of refrigerant

Guidelines for the handling of refrigerant
3.4.1

Precautions for refrigerant storage

Precautions for refrigerant storage
The refrigerant removed from the A/C system must be handled with ed from the A/C system must be handled with
care to prevent or minimise the risk of mixing with other refrigerants. care to prevent or minimise the risk of mixing with other refrigerants.
This machine is suitable for treating R134a or R1234yf This machine is suitable for treating R134a or R1234yf
refrigerants, individually (not simultaneously). refrigerants, individually (not simultaneously).
The external cylinders used to store the refrigerants must be clearly
marked to prevent mixing different refrigerants. marked to prevent mixing different refrigerants.
Cylinders shall be free from oil or other contaminants and clearly Cylinders shall be free from oil or other contaminants and clearly
marked so as to identify the refrigerant contained. marked so as to identify the refrigerant contained.
ATTENTION: when handling, using and storing when handling, using and storing R-134a or
R-1234yf refrigerant refrigerant
situations, MAKE SURE to refer to the product's safety
sheet.
GET THE SAFETY SHEET FROM YOUR REFRIGERANT GET THE SAFETY SHEET FROM YOUR REFRIGERANT
SUPPLIER AND FOLLOW ITS INSTRUCTIONS. SUPPLIER AND FOLLOW ITS INSTRUCTIONS.
REFRIGERANT R1234YF IS DEFINED AS FLAMMABLE REFRIGERANT R1234YF IS DEFINED AS FLAMMABLE
REFRIGERANT.
| AIR-NEX 9380/9480 NEX 9380/9480 | 6 en
rigerant from
refrigerant, refrigerant,
and and
by by
Refrigerant Refrigerant
the refrigerants must be clearly
and and dealing dealing with with
to refer to the product's safety
emergency emergency