Mars Comfort-Aire Century MCB18 SA Series Installation And Owner's Manual page 26

9. Operation
Turbo f unct ion (on some models)
Under COOL/HEAT mode ,press the FUNC. button
to activate the turbo function. Press the button
again to deactivate the turbo function.
When the turbo function is activated,the
mark appears. In heating mode, if there is a PTC, turn
on the PTC function.
NOTE:
The electric auxiliary heating function of the AHU model
is switched by the MODE button , and the FUNC. button is a
turbo function.
Follow me f unct ion indicat ion
Press the FUNC. button to select whether the room temperature
is detected at the indoor unit or the wire controller.
When the follow me function
indication appears,the room temperature
is detected at the wire controller.
Press the button again to cancel the
follow me function.
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Wired Controller IOM - VCDxxSA
Indoor Unit