Operation; Automatic Operation; Cool / Heat / Fan Only Mode Operation; Dry Operation - Midea MRCT-075CWN1-D(C) Technical & Service Manual

Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz
13. LOCK button: (Hidden)
When push the LOCK button, all current settings are locked in and the wired controller does
not accept any instruction except that of the LOCK button. Use the lock mode when want to
prevent setting from being changed accidentally or play fully. Push the LOCK button again
when want to cancel the lock mode.

1.4 Operation

Automatic operation

Connect to the power supply, and the operation lamp in main PCB board will flash.
Step 1: Press MODE button, and select AUTO icon.
Step 2: Press the button ▲ and ▼, set temperature as requirement; generally it is among from
17° C to 30° C.
Step 3: Press ON/OFF button, operation lamp is on, the unit can be worked in auto mode, and
indoor side fan speed is auto, and cannot be changed. Auto is displayed on LCD. Press it again
to stop.
Notes: Economy operation is valid in auto mode.

Cool / Heat / Fan only mode operation

Step 1: Press MODE button, and select COOL, or HEAT, or FAN ONLY icon.
Step 2: Press temperature adjust button to select setting temperature.
Step 3: Press FAN SPEED button to select high, medium, low or auto. (For rooftop packages, it
is not available.)
Step 4: Press ON/OFF button, indoor unit operation lamp on, it works in selected mode. Press
ON/OFF button again, it stops to work.
Notes: In fan only mode, temperature cannot be set.

Dry operation

Step 1: Press MODE button, select DRY icon.
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