Operation Modes And Functions - Midea MSV1-12HRDN1-MQ0W Service Manual

9.4 Operation Modes and Functions

9.4.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled,
and no setting temperature is displayed.
(3) Indoor fan can be set to high/med/low/auto.
(4) The louver operates same as in cooling
mode.
(5) Auto fan:
27.5
27
25.5
25
9.4.2 Cooling Mode
9.4.2.1 Compressor running rules
The maximum operation frequency of
compressor after starting submits to following
rule.
45
43
40
38
30
28
22
20
Fmax: The maximum operation frequency of
until to F1.
H: Run at F1 for 1h.(if T1-Ts<-2 ℃ , the
compressor will stop)
Meanwhile, the compressor running frequency
is limited by the current.
High
Medium
Low
Fmax=F4
Fmax=F7
Fmax=F8
Fmax=F6
Fmax=F3
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 the outdoor ambient temp.
During the 7 minutes, the frequency limitation is
active. 7 minutes later, the compressor running
frequency will be controlled as below:
3.5
3.0
2.5
2.0
1.5
1.0
0.5
-0.5
-1.0
While the zones of A,B,C... are corresponding
to different compressor running frequency.
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 F8.
F: Keep the current frequency.
G: Decrease the frequency to the lower level
37
A
B
C
D
E
F
G
H