2584819 - 5040A10 Air conditioning refrigerant CIRCUIT - Draining and Refilling
1. Use the special draining/repressurizing equipment.
Let the engine run with the air conditioning switched on for 10 - 15 minutes.1. Undo the repressurizing valve plugs.2. Connect the high pressure connecting pipe (HIGH) to the corresponding rapid attachment valve.3. Connect the low pressure connecting pipe (LOW) to the corresponding rapid attachment valve. | To engage the connectors with the needle valves, lift the knurled ring nut up. |
| To prevent incorrect connections, the quick-release connectors for the equipment connection pipes have different diameters: the one for the low pressure side is larger and the one for the high pressure side is smaller. |
Start the procedure for draining the coolant fluid, following the instructions in the equipment manual.1. Whilst draining the system, the fluid removed from the compressor should be collected in a special container. | The fluid is extremely hygroscopic: avoid leaving the containers open. |
Refill the system with the same amount of recommended fluid shown on the container.
| Type | Component | Name | Qty. |
|---|
| - | Oil | AIR CONDITIONER ASSEMBLY COMPRESSOR | ND OIL 8 | - |
If certain components are replaced, the following quantities of fluid must be added for each of the components replaced:
- drier filter 15cm3
- pipes 5 cm3 /m
- evaporator 40cm3
- condenser 40 cm3 .
In the case of accidental breakages which result in the rapid draining of the system (in less than 5 minutes), it is not possible to determine the exact amount of fluid which has escaped because of the high pressure of the fluid. In these cases, add around 50 cm 3 of fluid.Start the coolant fluid repressuring procedure, following the instructions in the equipment manual.Introduce the recommended quantity of coolant fluid.
| Type | Component | Name | Qty. |
|---|
| - | Fluid (g) | Air conditioning system | R134A | 600 ± 40 |
In the case of damage to the compressor or other system components followed prolonged exposure to the air of the pipes (more than 6 hours), the system ''WASHING'' procedure has to be carried out, proceeding as follows.Clean the pipes connected to the compressor using an air line.Connect the (drained) sysem to the repressurizing equipment.Introduce the recommended quantity of coolant fluid at the high pressure side and recover it from the low pressure side.Repeat the introduction and recover the fluid.Proceed with the system draining and repressurizing operations as described previously. | If the system is being washed, the entire amount of fluid in the system is eliminated. |
Refill the system with the specified fluid; as a guide add the quantity stated in the table.
| Type | Component | Name | Qty. |
|---|
| - | Oil | AIR CONDITIONER ASSEMBLY COMPRESSOR | ND OIL 8 | 130 c.c |
