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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Control Module HVAC: Description and Operation
PURPOSE Based on input signals it receives, the
programmer switches ON the A/C compressor, radiator fan first speed and controls the servo motor for temperature regulation.
OPERATION The
Climate Control Programmer unit (J127) contains five solenoids which operate the vacuum servos for air distribution and the heater valve.
