Volkswagen Touran Service Manual: Refrigerant Circuit Pressures and Temperatures

Volkswagen Touran Service Manual / Heating, Ventilation and Air Conditioning / Refrigerant Circuit General Information / Refrigerant Circuit Pressures and Temperatures

WARNING

When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure vessel regulations.

The pressures and temperatures in the refrigerant circuit depend on the current operating conditions (such as engine RPM, coolant fan level 1, 2 or 3, engine temperature, A/C compressor on or off) as well as on the effects of outside influences (such as outside temperature, humidity, desired cooling output).

In vehicles with A/C Compressor Regulator Valve -N280-, the pressure is modified on the low pressure side by the valve.

For this reason, values indicated in the following table are valid only as reference points. They are attained at an engine speed of 1,500 to 2,000 RPM and an ambient temperature of 20 C (68 F) after about 20 minutes.

The connections provided for measuring pressure for the manometer battery are located in the vehicle-specific refrigerant circuit.

Refer to → Rep. Gr.87.

At 20 C (68 F) with the engine not running, the pressure in the refrigerant circuit is 4.7 bar (68.17 psi). Refer to → Chapter "Refrigerant R134a Vapor Pressure Table".

Electrical Components Not on Refrigerant Circuit

A/C Programmer -J127- This programmer switches the refrigerant flow direction through the second evaporator if the temperature on the cooling fins on the second evap ...

Refrigerant Circuit with Expansion Valve

A-Low pressure side of refrigerant circuit. B-High pressure side of refrigerant circuit. Component A ...

Other materials:

Volkswagen Touran Owners Manual. Upper section of the centre console
Fig. 7 Overview of the upper section of the centre console Key for : Hazard warning lights button Stowage compartment Indicator lamp for the front passenger front airbag switch-off function Controls for: Heating and fresh air system Air conditioning system (m ...

Volkswagen Touran Owners Manual. Starting the engine
First read and observe the introductory information and safety warnings Step The actions should be carried out in the given order only. 1. Press the brake pedal. Keep it held down until stage 5 has been completed. ...