Drying Mode; Heating Mode - Midea MSC-09HRDN1-QD0(E) Service Manual

6) In turbo mode, turning off the units or switching running mode will make the machine quit turbo mode.
9.5.8 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:
9.5.9 Condenser high temperature protection function(in cooling and drying mode)
1) If T3(condenser pipe temperature) satisfies: 55＜T3＜60℃, frequency of compressor
will be limited immediately, it will descend one grade every 3 minutes till F1 and then run at this grade. If 52≤T3
＜54℃, the frequency will not descend and stay at current grade.
2) If T3＜52℃, frequency limit will be released and resume to previous grade.
3) If T3＞60℃ for 5 seconds, compressor will stop immediately, and the machine will not resume until T3＜52℃.

9.6 Drying mode

9.6.1 In this mode, for the action of 4-way valve please refer the passage 9.10.
9.6.2 Indoor fan speed is fixed at breeze grade and can't be changed. The horizontal angle is the same as in cooling
mode.
9.6.3 Compressor action rule:
9.6.4 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℃.
9.6.5 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.
9.6.6 Horizontal louver action is the same as that in cooling mode.

9.7 Heating mode

9.7.1 In this mode, for the action of 4-way valve please refer the passage 9.10.
9.7.2 For outdoor fan action, please refer to the passage 9.11.
9.7.3 Indoor fan action:
1) Anti-cold-wind function.
℃
4.0
3.0
1.5
1.0
℃
2.5
2.0
1.5
1.0
0.5
0.0
high
medium
low
F3
F2
F1
F1
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