Valeooscope - Air Conditioning - AC System Thermal comfort l

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1. Disclaimer 2. Valeo, the air conditioning multi-specialist 3. Valeo Techassist 4. Regulations on the A/C business

4.1 The Kyoto commitment

4.2 Kyoto Protocol basic rules

4.2.1 Fluid volume traceability

4.2.2 Garage equipments and people competency

4.2.3 Maintenance procedures

4.2.4 A/C system evolution

5. Air conditioning: well-being in the cabin all year long 6. Thermal comfort 7. Air conditioning: comfort and safety 8. Introduction to air conditioning systems

8.1 The role of air conditioning

8.2 Overview of the air conditioning system

9. The Heating, Ventilation and Air Conditioning unit (HVAC)

9.1 Air circulation

9.2 Capturing the outdoor air

9.3 Extracting the air from the cabin

9.4 Re-circulating the air

9.5 Propelling the air

9.6 Filtering particles suspended in the air

9.6.1 Cabin air filter technologies

9.6.2 Cabin air filter performances

9.6.3 Cabin air filter installation instructions

9.7 Heating

9.7.1 The heater core

9.7.2 The PTC

Table

of Contents

6.1 The thermal regulation machine in the human body

6.2 Physiological comfort

12.1 The consequences of humidity

12.2 The consequences of insufficient air flow

12.3 The consequences of a lack of refrigerant

12.4 Expert practices

10. The air conditioning - A/C loop

10.1 The refrigerant fluid

10.1.1 Refrigerant families

10.1.2 Developments and application dates

10.2 The simplified loop

10.2.1 Boiling temperature vs pressure

10.2.2 The complete loop

11. The components of the A/C loop

11.1 The compressor

11.1.1 Piston compressors

11.1.2 Vane compressors

11.1.3 The compressor ports

11.1.4 The suction level

11.1.5 Suction pressure limits

11.1.6 Evaporator freeze… a compressor killer!!

11.1.7 How to avoid the evaporator freezing

11.2 A/C loop lubrication

11.2.1 Oils and compressor technologies

11.2.2 Oil and refrigerant types

11.2.3 Oils in the catalogue

11.3 The condenser

11.4 The receiver drier

11.5 The expansion valve

11.5.1 Simplified description

11.5.2 Real description

11.6 The evaporator

11.7 Hoses

11.8 Variants on air conditioning loops

11.8.1 Circuit with an orifice tube and accumulator

11.8.1.1 The orifice tube

11.8.1.2 The accumulator

11.8.1.3 Loops variants in Valeo A/C catalogue

11.9 Safety devices

11.9.1 The pressure switch (pressostat)

11.9.2 The evaporator sensor

12. Why regular A/C servicing?

9.8 Cooling and dehumidifying the air

9.9 Hot/cold mix

9.9.1 By air mixing

9.9.2 By adjusting the hot water flow

9.10 Air distribution

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