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20
Operation Modes and Functions
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 the same in the COOLING mode.
5 Auto fan
Fig. 18 – Auto Fan
COOLING Mode
Compressor Running Rules:
S When T1*Ts < 28.4_F(*2_C), the compressor stops.
S When T1*TS > 31.1_F(*0.5_C), the compressor
activates.
S When the AC runs in the mute mode, the compressor
runs with low frequency.
S When the current is more than setting value, the current
protection function activates, and the compressor stops.
Outdoor Fan Running Rules:
The outdoor unit runs at a different fan speed according to T4. For
different outdoor units, the fan speeds differ.
Fig. 19 – Outdoor Fan Running Rules
The auto fan adheres to the following rules.
Fig. 20 – Auto Fan
Fig. 21 – Compressor Temperature Protection
When the condenser temperature temperature is higher than the
setting value, the compressor stops.
Compressor Running Rules
When T1−Ts>−ΔT, the compressor stops, when
T1−T
S
<ΔT−1.5，the compressor will be on. ΔT is the
programmed parameter of temperature compensation. When the
AC run in mute mode, the compressor runs with low frequency.
When the current is more than setting value, the current protection
function is activated and the compressor stops.
Outdoor Fan Running Rules
The outdoor unit runs at different fan speed according to T4. For
different outdoor units, the fan speeds are different.
Fig. 22 – Outdoor Fan Running Rules
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