95
13.10 Outdoor Air Temperature Control
• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the
diagram below.
• This control will begin 1 minute after the compressor starts.
• Compressor frequency will adjust based on outdoor air temperature.
13.11 Cooling Overload Control
• Pipe temperature limitation / restriction.
o Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor
operation frequency)
o The compressor stops if outdoor pipe temperature exceeds 61°C (S10, 15PK), 63°C (S13, 18, 24PK).
o If the compressor stops 4 times in 20 minutes, Timer LED blinks (“F95” indicated: Outdoor high pressure rise
protection)
13.12 Freeze Prevention Control 1
• When indoor hear exchanger temperature is lower than 0°C continuously for 6 minutes, compressor will stops
operation.
• Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 5°C.
• At the same time, indoor fan speed will be higher than during its normal operation.
• If indoor heat exchanger is higher than 5°C for 5 minutes, the fan speed will return to its normal operation.
13.13 Freeze Prevention Control 2
• Control start conditions
o During Cooling operation and soft dry operation
During thermo OFF condition, indoor intake temperature is less than 10°C or
Compressor stops for freeze prevention control
o Either one of the conditions above occurs 5 times in 60 minutes.
• Control contents
o Operation stops
o Timer LED blinks and “H99” indicated
13.14 Dew Prevention Control
• To prevent dew formation at indoor unit discharge area.
• This control will be activated if:
o Outdoor air temperature and indoor pipe temperature judgment by microcontroller is fulfilled.
o When COOL or DRY mode is operated more than 20 minutes or more.
• This control stopped if
o Compressor stopped.
o Remote Control setting changed (fan speed/ temperature).
o Outdoor air temperature and indoor intake temperature changed.
• Fan speed will be adjusted accordingly in this control.
Free
Limited Frequency
Outdoor air temperature
38°C
37°C
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