Workshop Manuals Factory service & repair Alfa Romeo
01 Introduction and contents02 Vehicle characteristics and maintenance03 Engine – mechanical (Twin Spark)04 Fuel system (Twin Spark)05 Ignition, starting and charging (Twin Spark)06 Engine cooling (Twin Spark)07 Engine – mechanical (V6)08 Fuel system (V6)09 Ignition, starting and charging (V6)10 Engine cooling (V6)11 Electrical diagnosis – introduction and wiring diagram guide12 Electrical 01 – Power supply13 Electrical 02 – Fusebox14 Electrical 03 – Location of grounds15 Electrical 04 – Sidelights16 Electrical 05 – Main and dipped beam headlights17 Electrical 06 – Headlight alignment adjustment18 Electrical 07 – Rear and front fog lamps19 Electrical 08 – Direction indicators and hazard warning lights20 Electrical 09 – Stop lights21 Electrical 10 – Reversing lights22 Electrical 11 – Day lights23 Electrical 11A – Dim-dip device24 Electrical 12 – Interior lighting25 Electrical 13 – Instrument panel26 Electrical 14 – Check panel27 Electrical 15 – Provision for radio28 Electrical 15A – Radio system29 Electrical 16 – Cigar lighter30 Electrical 17 – Horns31 Electrical 18 – Windscreen wipers and washers, headlight washers32 Electrical 19 – Heated rear window and heated door mirrors33 Electrical 20 – Boot release control34 Electrical 21 – Door locking system35 Electrical 21A – Remote control door locking36 Electrical 21B – Anti-theft device37 Electrical 22 – Front power windows38 Electrical 22A – Front power windows (one-touch version)39 Electrical 23 – Rear power windows40 Electrical 24 – Adjustable heated seats41 Electrical 25 – Sunroof42 Electrical 26 – Heating, ventilation and air conditioning43 Electrical 27 – Starting and charging44 Electrical 28 – Engine cooling fan45 Electrical 29 – Motronic ignition and injection46 Electrical 29A – Alfa Romeo CODE immobiliser47 Electrical 30 – ABS48 Electrical 31 – Controlled damping suspension49 Electrical diagnosis – components key50 Clutch51 Gearbox and differential52 Axle shafts53 Front suspension54 Brakes55 Steering56 Rear suspension57 Wheels and tyres58 Electrical system59 Instrument panel and electronic instruments60 Bodywork61 Doors62 Boot and bonnet63 Interior trim64 External trim65 Heating and ventilation
Alfa Romeo 155 Factory Service Manual (1992-1998)65 · Heating and ventilation
65 · Heating & A/C

Refilling the system with refrigerant

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Discharging the refrigerant › Refilling the system with refrigerant
Heating and ventilationRefilling the system with refrigerant

CAUTION The safety rules given in the Introduction to the maintenance Instructions should be observed at all times.

Freon is not a dangerous product but it can become toxic in the presence of naked flame. For this reason it is advisable to drain the Freon circuit away from flames and if possible, in a ventilated area.

Avoid exposing the skin to evaporating Freon for long periods. The gas being discharged at environmental temperature and pressure expands rapidly reaching temperatures of -29.8 °C (-21.7 °F) and may cause "burning" due to the excessively low temperature.

Protect the eyes from contact with the refrigerant as the excessive and instant low temperature may cause serious injury.

  1. Unscrew and remove the cap from the valve on the low pressure hose.

CAUTION Discharging Freon into the atmosphere is harmful to the environment. Collect the Freon in a specific collection system.

  1. Attach the special tube (fitted with a needle connection) to the valve and discharge the system (RESPECTING THE CURRENT LAWS).
Car with open hood showing refrigerant discharge point

REFILLING THE SYSTEM WITH REFRIGERANT

CAUTION The safety rules given in the introduction to the maintenance operations should be followed at all times. The following should be particularly noted:

Freon is not harmful to either vehicles or people, however, as it is stored under pressure it is susceptible to physical transformation which can render it dangerous if not correctly handled. For this reason it is vital that the information given below is followed at all times. The fluid is normally stored in metal cylinders. Never expose the cylinders to the sun for extended periods as the temperature will cause an increase in pressure which could exceed the safety limits.

The transvasing of the metal cylinder to the loading station during cold weather may prove difficult due to the low pressure in the cylinder. In this situation leave the cylinder to stand in a heated area, not above 35 °C (95 °F), for about twenty minutes. Never heat the cylinder using a naked flame. Never leave the cylinder of the loading station completely full for long periods.

Parts & tools for this job For 1992 Alfa Romeo 155

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