CS-E18GKDW, CU-E18GKD, CS-E21GKDS, CU-E21GKD - Panasonic Air Conditioner Service Manual (repair manual). Page 27

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Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal setting temperature and intake air temperature.

Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes.
These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value
will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.

1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).
2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger

temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

Operation Mode

Airflow Direction

Vane Angle (

°)

1

2

3

4

5

Heating

Auto with Heat Exchanger 

A

16

B

50

Temperature

C

8

D

8

Manual

8

17

33

49

60

Cooling and Soft Dry

Auto 

8 ~ 38

Manual

8

17

25

33

38

Mode Judgment in Auto

Auto 

8

Manual

8

17

25

33

38