MAHLE ACX480 User Manual

45 pages

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MAHLE

ACX380/480

Service

Manual

A/C Service Equipment

Table of Contents2
General Instructions3
General Notes3
Manufacturer Identification3
Environmental Precautions3
Safety Conditions3
Personal Safety Information3
Definitions3
Important Information on Service Equipment Safety5
Safety Devices5
Layout of the Manual5
Use of the Manual5
Symbols6
Safety6
Glossary6
Guidelines for the Handling of Refrigerant6
Precautions for Refrigerant Storage6
Conditions of Refrigerant and System7
Recycling Capacity7
Product Description7
Application7
Scope of Delivery7
Description of the Unit7
User Interface8
Main Menu9
E³ CONNECT Quick Couplers9
Technical Features10
Installation11
Equipment Installation11
Unpacking11
Commissioning11
Connections11
Positioning and Connection11
Software Update12
Initial Verification12
New PAG and POE Oil Bottles Filling12
UV Dye Bottle Filling13
Setup14
Service Menu15
Manual Activations and Analogue Channel View15
Pressures Calibration (Service Kit)15
OOB Pressures Calibration (Service Kit)16
Gas Weight Calibration16
Calibration Check17
Oil Weight Calibration17
Compressor and Vacuum Pump Test17
Spare Parts & Consumables17
Equipment and Simulator17
11 Refrigerant Fluid Circuit17
Operational Cycles18
Receiving Tank (Refrigerant Cylinder)18
Manifold Charts18
NITROGEN TEST and FORMING GAS20
Leak Test - Manifold20
Suction Circuit Components21
Non-Permanent Junction21
13 Electrical Connections21
14 Maintenance22
Maintenance Interval22
Hoses Emptying23
Air Purge23
Vessel Filling23
Pressures Zero23
Self Leak Test23
E³ Pump23
Pump Oil Change24
Dryer Filter Change24
Replacement of Active Oil Protection Cartridge25
Calibration Check25
Maintenance of Printer25
Periodic Checks26
Refrigerant Type Change (Only for ACX 380)27
Air Purge27
Counters27
Replacing White Sample Filter (Refrigerant Identification Unit)27
Replacement Interventions28
Extraordinary Maintenance List28
Extraordinary Maintenance28
Replacement of Component Connected to Refrigerant Circuit28
Replacement of Logic Electronic Board with Display29
Replacement of Electronic Power Board29
16 Spare and Wearing Parts30
Refrigerant Identification Unit30
Appendix 1 - Refrigerant Fluid Circuit Acx380/48031
Appendix 2 - Refrigerant Fluid Circuit Acx380/480 Operational Cycles32
Appendix 3 - Acx380/480 - Electrical Connection - Logic Electronic Board36
Appendix 4 - Acx380/480 - Electrical Connection - Power Electronic Board and Power Supply37
Appendix 5 - Acx380/480 - Electrical Connection - Status and Warning Indicator Light Electronic Board39
Appendix 6 - Trouble Shooting40
Appendix 7 - Failure List Acx380/48041

Questions and Answers:

K
Kim Fowler DVMAug 7, 2025
What to do if the oil recovery fails during the automatic cycle in MAHLE Service Equipment?
- K
  Kathleen IbarraAug 7, 2025
  If you're unable to recover oil during the automatic cycle, it could be due to the oil loading cell being out of calibration or defective. Try calibrating the exhausted oil scales. If the issue persists, consider replacing the oil loading cell.