Volkswagen Golf Service & Repair Manual: Evaporator

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Refrigerant circuit components / Evaporator

The liquid refrigerant evaporates in the tubes of the evaporator. The latent heat of evaporation is taken from the air streaming past the evaporator fins. The air cools. The refrigerant evaporates and is drawn into the air conditioning system compressor carrying with it the heat it has absorbed.

A restrictor or an expansion valve allows a defined quantity of refrigerant to flow to the evaporator. In systems with an expansion valve, the flow is regulated such that only gaseous refrigerant exits the evaporator.

Evaporator

Condenser

The condenser transfers heat from the compressed refrigerant gas to the surrounding air. This allows the refrigerant gas to condense into liquid ...

Reservoir

The reservoir collects the vaporised and gaseous mixture coming from the evaporator to ensure the air conditioner compressor receives only gaseous refrigerant. Gaseou ...

Other materials:

Removing and installing right temperature flap control motor -V159-, LHD vehicles
Special tools and workshop equipment required Vehicle diagnostic tester First carry out the following work: – Switch off all electrical consumers. – ...

Permissible deviation in tread depth
Only tyres of the same construction and tread pattern should be used on all four wheels. Always fit the tyres with the deeper tread to the front axle. It is basically possible to replace tyres individually. ...

Starting conditions for auxiliary heater, supplementary heater mode
Terminal 15 (ignition) on Engine speed > 600 rpm Coolant temperature < 72 °C Ambient temperature < 5 °C Reserve fuel level not reached ...