Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Compressor HVAC: Service Precautions

WARNING: Filling of refrigerant from a 725 gram refrigerant bottle may only be carried out' via the service connection on the low-pressure side. The reason for this is that it is necessary to start the engine to be able to fill the system with the correct amount of refrigerant. If the refrigerant bottle is connected to the high-pressure side when the engine is started, there is a risk that the bottle might explode.