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 Control Function

COMPRESSOR CONTROL FUNCTION

Fail-Safe

FAIL-SAFE FUNCTION

- If a communication error exists between the unified meter and A/C amp., and preset switch for 30 seconds or longer, air conditioner is controlled under the following conditions:
Compressor: ON

Air outlet: AUTO
Air inlet: FRE (Fresh)
Blower fan speed: AUTO
Set temperature: Setting before communication error occurs
Display: OFF