Midea MSV1-09HRDN1-QC2, Service Manual

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9.5.6 Indoor fan operation rule.
1) In cooling mode, indoor fan runs all the time and the speed can be selected as high,
medium, low and auto.
2) Auto fan in cooling mode acts as follow:
9.5.7 Condenser high temperature protection function(in cooling and drying mode)
If T
3＞
60
℃
for 5 seconds, compressor will stop immediately, and the machine will not resume until T
3＜
52
℃
.
9.6 Drying mode
9.6.1 Indoor fan speed is fixed at breeze grade and can’t be changed. The horizontal angle is the same as in
cooling mode.
9.6.2 Room overlow temperature protection
In drying mode, if room temperature is lower than 10
℃
, compressor will stop and not resume until room
temperature climbs up to 12
℃
.
9.6.3 Evaporator anti-freezing protection, condenser high temperature protection and outdoor unit frequency limit
are valid, and they are the same as that in cooling mode.
9.6.4 Horizontal louver action is the same as that in cooling mode.
9.7 Heating mode
9.7.1 Indoor fan action:
1) Anti-cold-wind function.
2) If the compressor stops caused by room temperature rising, indoor fan will be forced to run 127
seconds with breeze. During this period, anti-cold-wind is disabled. After this, anti-cold –wind function is
available.
3) If the machine runs in rating capacity test mode, indoor fan runs with rating speed, and
44
38
37
34
33
24
17
setting fan speed
low fan
breeze
super breeze
fan stop
E
v
a
p
o
ra
to
r
te
m
p
℃
∆
T
=
(r
o
o
m
t
e
m
p
)
–
(
s
e
tt
in
g
T
e
m
p
)
medium
4.0
3.0
1.5
1.0
℃
high
low