Basic Function

The inverter control system, equipped with a microcomputer, determines the most suitable operating mode and automatically adjusts output power for maximum comfort. It maintains the set temperature by measuring the environment and performing temperature shifting. The compressor operates based on the frequency instructed by the microcomputer, which judges conditions based on internal setting and intake air temperatures.

Internal Setting Temperature

The remote controller's set temperature is the base for temperature shifting. These shifts depend on A/C settings and the environment. The final shifted value is used as the internal setting temperature and is updated continuously.

Frequency Instruction for Compressor Operation

Compressor operation is based on instructed frequency from the indoor unit's microcomputer after temperature sampling and judgment. There are 30 different frequency values used for operation, determined by temperature judgment.

Indoor Fan Motor Operation

31 fan speed numbers are assigned for different fan speed operations. Fan speed can be set manually or automatically changed based on operation and environment.

Cooling Mode Automatic Indoor Fan Speed

Automatic fan speed for cooling follows specific patterns. If certain conditions are met during cooling, the indoor fan speed shifts internally.

Heating Mode Indoor Fan Motor Operation (Anti Cold Draft Control)

Indoor fan speed varies based on indoor heat exchanger temperature, air volume, and direction.

Temperature, X (°C) (Intake Air - Internal Setting)	Zone	Freq. No. E9CKP			Freq. No. - E12CKP
		Cooling	Soft Dry	Heating	Cooling	Soft Dry	Heating
X < -2.5	0	1	4	30	1	4	30
-2.5 ≤ X < -1.5	1	1	4	30	1	4	30
-1.5 ≤ X < -1.0	2	1	4	10	1	4	10
-1.0 < X < -0.5	3	1	4	7	1	4	7
-0.5 ≤ X < +1.0	4	4	4	4	4	4	4
+0.5 < X < +1.0	5	6	6	1	6	6	1
+1.0 < X < +1.5	6	9	7	1	9	8	1
+1.5 < X < +2.5	7	15	7	1	16	8	1
X ≥ +2.5	8	15	7	1	16	8	1

Manual for CS-E9CKP CU-E9CKP5 / CS-E12CKP CU-E12CKP5