Volkswagen Polo Service & Repair Manual: Charging Systems not Requiring a Permit

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Refrigerant Circuit General Information / A/C Service and Recycling Units / Charging Systems not Requiring a Permit

At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers.

Charging systems not requiring a permit are ones used for transferring compressed gases to mobile compressed-gas vessels for internal use only.

Note:

Some A/C service units are charging systems not requiring a permit. When working with such equipment, the refrigerant is not transferred to mobile compressed-gas vessels, but rather into a permanently installed charging cylinder with visible level gauge and float switch.

Recommendation:

It is advisable to use a portable cylinder with visible level gauge and pressure relief valve for surplus refrigerant for internal use.

Observe the different technical regulations for handling and filling compressed gases in other compressed-gas vessels (for example RGS 400, TRGS 402, TRGS 407, TRGS 510, TRBS 3145 / TRGS 725).

Extraction System Group Classifications

At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers. ...

Refrigerant Circuit Repair Information

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

Other materials:

Introduction
The purpose of this Repair Manual is to provide foremen and mechanics with the basic knowledge needed to ensure expert working. Note Expert knowledge is achieved by one who has taken part successfully in instructiona ...

Roll-back function for the electric windows
First read and observe the introductory information and safety warnings The roll-back function for the electric windows can reduce the risk of injuries when the windows are closing . If the one-touch closing function for a window does not work because it is stiff or is being obstructed, the w ...

Using a mobile telephone in the vehicle without a connection to the external aerial
First read and observe the introductory information and safety warningsBoth during telephone calls and in standby mode, mobile telephones transmit and receive radio waves, which may also be termed "high-frequency energy". Current scientific literature warns us that radio waves can be harmful ...