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:

One-Part Clean Spray Can -LLS MAX 099-, -LLS MAX 100-, Aquaplus System
Definition: One-Part Clean Spray Can -LLS MAX 099-, 250 ml for Water-Based Mixed Paint "Aquaplus System" One-Part Clean Spray Can -LLS MAX 100-, 400 ml for Water-Based Mixed Paint "Aquaplus System" ...

Securing child seats using lower anchoring points (ISOFIX, LATCH)
Fig. 72 Cushion in the backrest of the outer seats in the second row of seats Fig. 73 ISOFIX retaining rings for ISOFIX child seats in the frames of the outer seats in the second row of seats First read and observe the introductory information and safety warnings Two retaining rings ...

Warning lamps and indicator lamps
First read and observe the introductory information and safety warnings Lit up Possible cause The vehicle is locked using the central locking button or via Auto Lock . Several warning and indicator lamps will light up ...