Panasonic CU-E18CKR Service Manual page 43

8.2.2.4. Anti-Dew Formation Control
a) Control 1
- During anti-dew formation control, compressor operates at
frequency shift as shown below when indoor fan speed is less
than Me.
- This control is cancelled after started for 420 minutes, or remote
control setting temperature or fan speed setting is changed.
b) Control 2
- When the following conditions occurs for 20 minutes continuously,
anti-dew formation is controlled and air vane change Horizontal
vane shift to 2nd position and Vertical vane shift to center position.
1. Indoor intake air temperature is 25°C or above and less than 29°C.
2. Outdoor air temperature is less than 30°C.
3. Air vane control: Manual Horizontal Airflow and Manual Vertical
Airflow.
4. Fan speed is quiet Lo.
8.2.3. Protection Control For Heating Operation
8.2.3.1. Anti Cold Draft Control
Indoor fan speed varies in accordance to indoor heat exchanger temperature, based on type of
air volume and direction, as shown below.