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

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Temperature Control

Temperature Control Knob

The temperature control knob regulated the HVAC system air temperature. Turning the knob to the RH increases the air temperature. Turning the knob to the LH will decrease the air temperature. The temperature control knob is located in the center of the HVAC control head. The temperature control knob is mechanically linked to the air temperature valve (door) by temperature control cable.