Midea Mono 3D, Service Manual

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For MS11M-24HRDN1-MT0W model:
4¡ã C(39.2¡ã F)
T1-Ts
High
Low
Medium
3¡ã C(37.4¡ã F)
1.5¡ã C(34.7¡ã F)
1.0¡ã C(33.8¡ã F)
8.4.3 Heating Mode
8.4.3.1 Compressor running rules
The maximum operation frequency of the
compressor after starting submits to the
following rule.
Fmax=F3
Fmax=F5
Fmax=F7
Fmax=F9
Fmax=F10
Fmax=F8
Fmax=F6
Fmax=F2
34¡ã C(93.2¡ã F)
T4
Off
Fmax=F4
33¡ã C(91.4¡ã F)
28¡ã C(82.4¡ã F)
27¡ã C(80.6¡ã F)
25¡ã C(77.0¡ã F)
24¡ã C(75.2¡ã F)
22¡ã C(71.6¡ã F)
21¡ã C(69.8¡ã F)
19¡ã C(66.2¡ã F)
18¡ã C(64.4¡ã F)
17¡ã C(62.6¡ã F)
16¡ã C(60.8¡ã F)
15¡ã C(59.0¡ã F)
14¡ã C(57.2¡ã F)
12¡ã C(53.6¡ã F)
11¡ã C(51.8¡ã F)
6.0¡ã C(42.8¡ã F)
5.0¡ã C(41.0¡ã F)
Fmax: The maximum operation frequency of
compressor.
F1~F8: The detailed value of the compressor
operation frequency.
If users switch on AC by remote controller, the
compressor will run at the Fmax frequency for 7
minutes according to outdoor ambient temp.
During the 7 minutes, the frequency limitation is
active.
7 minutes later, the compressor running
frequency will be controlled as below:
5.0¡ã C(41¡ã F)
4.5¡ã C(40.1¡ã F)
T1-Ts-
¦ ¤
T
H
G
F
E
D
C
B
A
3.5¡ã C(38.3¡ã F)
3.0¡ã C(37.4¡ã F)
2.5¡ã C(36.5¡ã F)
2.0¡ã C(35.6¡ã F)
1.5¡ã C(34.7¡ã F)
1.0¡ã C(33.8¡ã F)
0.5¡ã C(32.9¡ã F)
While the zones of A,B,C... are corresponding
to different compressor running frequency.
ΔT=0°C(32°F) as default.
Note:
When T1-Ts keeps in the same temp. zone for
3 minutes, the compressor will run as the below
rules:
A~E: Increase the frequency to the higher level
until to F10.
F: Keep the current frequency.
G: Decrease the frequency to the lower level
until to F1.
H: Run at F1 for 1h.(if T1-Ts-
ΔT >6°C(42.8°F),
the compressor will stop)
Meanwhile, the compressor running frequency
is limited by the current.
I3HEAT
I2HEAT
I1HEAT
Off
Decrease
Hold
Resume
I3HEAT, I2HEAT,I1HEAT mean different
running current value.
Off: Compressor stops.
Decrease: Decrease the running frequency to
the lower level.
Hold: Keep the current frequency.