Midea MEHS-09NIH2 Service Manual page 31

compressor will stop.
----T2<48℃ or T2 stays in 48℃~ TEH2℃ for 6
minutes, the frequency will not be limited by T2.
----T2>60℃, the compressor will stop and
restart when T2<48℃.
9.4.4 Auto-mode
This mode can be chosen with remote
controller and the setting temperature can be
changed between 17~30℃.
In auto mode, the machine will choose cooling,
heating or fan-only mode according to ΔT (ΔT
=T1-Ts).
ΔT=T1-Ts
ΔT＞1℃
-1<ΔT≤1℃
ΔT≤-1℃
Indoor fan will run at auto fan of the relevant
mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating
and cooling, the compressor will keep stopping
for 15 minutes and then choose mode
according to T1-Ts.
If the setting temperature is modified, the
machine will choose running function again.
9.4.5 Drying mode
9.4.5.1 Indoor fan speed is fixed at breeze
and can't be changed. The louver angle is the
same as in cooling mode.
9.4.5.2 Compressor running rules
2.5
2.0
1.5
1.0
0.5
0.0
9.4.5.3 Low indoor room temperature protection
In drying mode, if room temperature is lower
Running mode
Cooling
Fan-only
Heating
F3
F2
F1
F1
than 10℃, the compressor will stop and not
resume until room temperature exceeds 12℃.
9.4.5.4 Evaporator anti-freezing protection,
condenser high temperature protection and
outdoor unit frequency limit are active and the
same as that in cooling mode.
9.4.5.5 The outdoor fan operates the same as
in cooling mode.
9.4.6 Forced operation function
9.4.6.1 Enter forced operation function:
When the machine is off, pressing the touch
button will carry the machine to forced auto
mode. If pressing the button once again within
5 seconds, the machine will turn into forced
cooling mode.
In forced auto, forced cooling or any other
operation mode, pressing touch button will turn
off the machine.
9.4.6.2 In forced operation mode, all general
protections and remote control are available.
9.4.6.3 Operation rules:
Forced cooling mode:
The compressor runs at F2 frequency and
indoor fan runs as breeze. After running for 30
minutes. the machine will turn to auto mode as
24℃ setting temperature.
Forced auto mode:
The action of forced auto mode is the same as
normal auto mode with 24℃ setting
temperature.
9.4.7 Timer function
9.4.7.1 Timing range is 24 hours.
9.4.7.2 Timer on. The machine will turn on
automatically when reaching the setting time.
9.4.7.3 Timer off. The machine will turn off
automatically when reaching the setting time.
9.4.7.4 Timer on/off. The machine will turn on
automatically when reaching the setting "on"
time, and then turn off automatically when
reaching the setting "off" time.
9.4.7.5 Timer off/on. The machine will turn off
automatically when reaching the setting "off"
time, and then turn on automatically when
reaching the setting "on" time.
9.4.7.6 The timer function will not change the
AC current operation mode. Suppose AC is off
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