Two Speeds Outdoor Fan Function; Timer Function; Sleep Function Mode - Midea MSY-09HRDN1-QC8 Service Manual

forced cooling mode 4-way valve is on. If the machine changes operation mode from heating to
cooling\drying\forced cooling mode, 4-way valve will be delayed off 2 minutes after compressor
stop. If the machine changes operation mode from non-heating mode to heating mode, the 4-way
valve will be turned off immediately.

8.11 Two speeds outdoor fan function

8.11.1 Outdoor fan action in heating mode(including heating in auto mode).
℃
17
15
Outdoor fan action in heating
mode
8.11.2 Outdoor fan action in cooling & drying mode(including cooling in auto & forced mode).
Please refer to the pic. above.

8.12 Timer function

8.12.1 Timing range is 24 hours, and the setting time is the relative time.
8.12.2 Timer on.
After turning off, the machine will turn on automatically when reaching the setting time.
8.12.3 Timer off.
After turning on, the machine will turn off automatically when reaching the setting time.
8.12.4 Timer on/off.
After turning off, the machine will turn on automatically when reaching the setting "on" time, and
then turn off automatically when reaching the setting "off" time.
8.12.5 Timer off/on.
After turning on, the machine will turn off automatically when reaching the setting "off" time, and
then turn on automatically when reaching the setting "on" time.
8.12.6 Timer function will be eliminated when the unit is turned off by remote controller.

8.13 Sleep function mode

8.13.1 Operation time in sleep mode is 7 hours. The unit will quit from this mode and be turned off in
7 hours.
8.13.2 In cooling, heating or auto mode sleep function is available.
8.13.3 Operation process in sleep mode is as follow:
After pressing SLEEP button on remoter controller, the machine will get into sleep mode.
When cooling, the setting temperature rises 1℃(be lower than 30℃) every one hour, 2 hour later
the rising stops and indoor fan is fixed as low speed.
When heating, the setting temperature descends 1℃(be lower than 30℃) every one hour, 2 hour
later the descending stops and indoor fan is fixed as low speed, and anti-cold-wind is available.
8.13.4 If user uses timer on function in sleep mode, sleep function will pause and not resume until
reaches the setting on time.
lo
high
℃
22
20
Outdoor fan action in cooling & drying
mode
hig
low
31