Midea MPPD-12CRN1-BH9 Service Manual page 9

When the unit is off, the compressor stops at first, and the indoor/outdoor
fan will stop for a delay of 5seconds. (If it operates at heating mode, the
outdoor fan will be off for a delay of 30 seconds).
The ION/TIMER functions are valid at the cooling mode.
3.3.4 Drying mode function requirement
At Drying mode, TS can't be controlled by display panel,
and LED display as T1.
The unit operates at drying mode. If T1>55.4
and then the compressor operates after 15 seconds later.
Operation conditon
T1 ℃
15
13
The speed can't be controlled at drying mode, and indoor fan motor operates
at low speed.
The ION/TIMER functions are valid at the drying mode.
3.3.5 Heating mode function requirement(for Electronic Heater)
TS range is 62
The speed of indoor fan can be optionally chosen as Auto/High/Mid/Low.
At heating mode, the heater will operate according to the difference between
T1 and TS. Electronic heater operates as below:
Operation conditon
(T1-Ts) ℃
+1
0
Compressor on
Compressor off
~88 ~30
(17
℉ ℉ ℃
Heater off
Heater on
13℃), outdoor fan turns on,
℉(
a) When T1<55.4
compressor stops working.
And outdoor fan will stop for a
delay of 5 seconds.
b) When T1≥59
fan operates, and compressor
will restart operation after
15seconds.
℃).
a) When T1﹤TS, indoor fan
operates firstly, then heater
operates after 4 seconds.
b) If T1﹥TS＋1℃, turn off heater.
Then turn off indoor fan motor
for a delay of 10 seconds..
13℃),
℉(
15℃), outdoor
℉(
