Oil Weight Calibration; Spare Parts & Consumables; Equipment And Simulator; Refrigerant Fluid Circuit - MAHLE AIR-NEX 9380 Service Manual

9.5

Oil weight calibration

From the SECURED SERVICE menu, (insert the password
"BRN"), select the OIL WEIGHT CALIBRATION.
Remove the exhausted oil container from the equipment
and press "OK" to acquire the signal zero of the load cell.
•
Insert a reference weight (200g – 400g) in the new
oil (PAG) fitting and set its value.
•
Insert a reference weight (200g – 400g) in the new
oil (POE) fitting and set its value.
•
Insert a reference weight (200g – 400g) in the used
oil fitting and set its value.
•
Insert a reference weight (200g – 400g) in the UV
Dye fitting set and set its value..
Fig. 19: Reference weight insertion
Remove the oil sample weights and insert the empty
containers and procede.
When required by the guided procedure, confirm the
calibration.
9.6 Spare parts & consumables
From the SECURED SERVICE menu, (insert the password
"BRN"), Select the "Spare parts & consumables"
In this menu is possible to watch the counters of spare parts
replaced and consumables used, managed by software (it is
not possible to reset the counters).
10 Equipment and simulator
The following equipment is required:
ACX SERVICE KIT
•
Oil calibration reference weights
•
Pressure reference gauge
•
fittings for LP/HP coupler
An iron ≥4 kg reference weight is necessary for "gas weight
calibration" (this is not included inside the ACX service kit).

11 Refrigerant fluid circuit

11.1 Refrigerant fluid circuit
For components and circuit layout ref. APPENDIX 1 -
REFRIGERANT FLUID CIRCUIT.
11.2

Operational cycles

For components and circuit layout ref. APPENDIX 2 –
OPERATIONAL CYCLES.
11.3

Receiving tank (refrigerant cylinder)

The tank is the component which determines the category
of the entire equipment according to the PED directive.
The PED "Pressure Equipment Directive" 2014/68/EU
defines and regulates all those parts that are subject to
© MAHLE
pressure, with a specific ratio between their pressure and volume.
Safety against the risk due to pressure of the refrigerant fluid inside
the receiving tank is assigned to the safety valve installed during
manufacturing. In case of replacement, use of new and original
spare parts not contaminated with other substances is
recommended as well as requesting the relative declaration of
conformity proving the effective test of the components in the
beginning.
The assistance centre assumes responsibility for workmanlike
assembly and for checking before new commissioning according to
the prescriptions provided for by the regulations in force in the
country of use; in particular, the assistance centre will have to
guarantee that the assembly will ensure a perfect tightness and that
the safety components are installed appropriately so as to ensure
operation is not jeopardized.
VESSEL 20l
Category III (Dir. 2014/68/EU)
Fig. 20: Refrigerant internal bottle
SAFETY VALVE GAS AIRTEK - VS14NPT20HNBRPED4
PS 20 bar R 1/4 NPT - Category IV (Dir. 2014/68/EU)
| AIR-NEX 9380/9480 | 17 en