| Safety regulations for working with extraction and charging systems |
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| Before connecting the charging system to the air conditioning system, ensure that the shut-off valves are closed. |
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| Before disconnecting the charging system from the air conditioning system, make sure the charging process has been completed to prevent refrigerant escaping into the atmosphere. |
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| Once the purified refrigerant from the charging system has been transferred to an external compressed-gas cylinder, close the hand shut-off valves at the cylinder and charging system. |
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| Do not expose the charging system to moisture or use it in a wet environment. |
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| Disconnect from power supply before performing service work on the charging system. |
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| An extension cable should not normally be used because it can increase the fire hazard. If the use of an extension cable is unavoidable, the minimum cross-section should be 2.5 mm2. |
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| In case of fire, remove external cylinder. |
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| Entrained oil from the air conditioning system drawn off by the suction unit into the measurement vessel supplied is subsequently to be transferred to a sealable container, as it contains a small quantity of refrigerant which must not be released into the environment. |
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| Following shutdown, the air conditioner service station must be secured to stop it rolling away. |
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