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6.1 GENERAL INFORMATION
6.1.1 Specific features
(1) Equipped with an inverter scroll compressor.
¡Low noise. Low vibration and compact.
(2) The long piping makes the location of the inside and units flexible.
¡No need for additional charge of refrigerant : 20 m
¡Maximum piping length : 30 m
(3) Connectable indoor capacity
Number of connectable units : 1 to 2 units
Total of indoor units (class kW) : 6.5 kW
(4) Indoor units are available with 5 capacities.
5 capacities ········ 22, 25, 28, 32, 40
(5) Inverter (Frequency converter) for multi-steps power control
¡Heating / Cooling
The rotational speed of a compressor is changed in step in relation to varying load, to interlock with the indoor and outdoor unit
fans controlled to changes in frequency, thus controlling the power.
¡Allowing quick heating/cooling operation during start-up period. Constant room temperature by fine-tuned control after the unit
has stabilized.
(6) Fuzzy control
Fuzzy control calculates the amount of variation in the difference between the suction air temperature and the setting temperature
in compliance with the fuzzy rules in order to control the air capacity and the inverter frequency.
(7) Self diagnosis function
We are constantly trying to do better service to our customers by installing such judges that show abnormality of operation as
follows. (See Page 225)
6.1.2 How to read the model name
Example : SK M 25 Z A
Series No.
Inverter and heat pump type.
Product capacity
Multiple system
Model name
SK : Wall mounted type
SC : Outdoor unit
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