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)

Or, hide this message: temporarily or permanently

System Specifications

Pressure and Temperature Specifications

Refer to "Checking A/C Refrigerant System Pressures and Temperatures" Testing and Inspection
Refer to "A/C Refrigerant System, Component Overview" Description and Operation