Midea MSMTAU-09HRFN8-QRD6GW, Service Manual

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fan in cooling mode.
Mute function is active.
All protections are activated and operate the
same as they do that in cooling mode.
Low Room Temperature Protection
-If the room temperature is lower than 10
℃
, the
compressor ceases operations and does not
resume until room temperature exceeds 12
℃
9.4.6 Forced Operation
1. Forced cooling mode:
The compressor and outdoor fan continue to run
and the indoor fan runs at rated speed. After
running for 30 minutes, the AC will switch to auto
mode with a preset temperature of 24
℃
.
2. Forced auto mode:
Forced auto mode operates the same as normal
auto mode with a preset temperature of 24
℃
.
3. The unit exits forced operation when it receives
the following signals:
•
switch on
•
switch off
•
timer on
•
timer off
•
changes in:
mode
fan speed
•
setting temperature.
9.4.7 Timer function
1. Timing range is 24 hours.
2.Timer on. The machine will turn on
automatically when reaching the setting time.
3.Timer off. The machine will turn off
automatically when reaching the setting time.
4.Timer on/off. The machine will turn on
automatically when reaching the setting “on”
time, and then turn off automatically when
reaching the setting “off” time.
5.Timer off/on. The machine will turn off
automatically when reaching the setting “off”
time, and then turn on automatically when
reaching the setting “on” time.
6.The timer function will not change the AC
current operation mode. Suppose AC is off now,
it will not start up firstly after setting the “timer
off” function. And when reaching the setting
time, the timer LED will be off and the AC
running mode has not been changed.
7. The setting time is relative time.
8. The AC will quit the timer function when it
has malfunction.
9.4.8 Sleep function
1 The sleep function is available in cooling,
heating, or auto mode.
2. The operational process for sleep mode is as
follows:
•
When cooling, the temperature rises 1
℃
(to
not higher than 30
℃
) every hour. After 2
hours, the temperature stops rising and the
indoor fan is fixed to low speed.
•
When heating, the temperature decreases
1
℃
(to not lower than 16
℃
) every hour.
After 2 hours, the temperature stops
decreasing and the indoor fan is fixed at
low speed. Anti-cold wind function takes
priority.
3 The operating time for sleep mode is 8 hours,
after which, the unit exits this mode and does
not switch off.
4 The timer setting is available in this mode.
9.4.9 Auto-Restart function
The indoor unit has an auto-restart module that
allows the unit to restart automatically. The