Table of Contents
7-5. Fresh air control
The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as below.
7-6. Compressor preheating
By preheating the compressor, warm airflow is quickly discharged when the operation is started.
• Triggering condition 1
– Outdoor temperature ≤ 20°C
When outdoor temperature reaches 26°C, compressor preheating stops.
– 30 minutes after compressor stopped
• Triggering condition 2
7-7. External electrical heater control
The external electrical heater is operated as below.
Ts -3°C
Ts -12°C
When the room
temperature drops
NOTES:
• When the compressor stop, external electric heater is off.
• It operates only in heating mode and when the indoor fan operates. (However, S-LOW is exclud-
ed.)
7-5. Fresh air control
Operation
Fan motor
(Indoor unit)
Stop
Operation
Fan motor
(for Fresh Air)
Stop
Tn
Off
0°C
On
Tn: Outdoor unit heat exchanger temp.
Heater : Off
Heater : On
Heater : Off
Tn
2°C
When the room
temperature rises
Ts -1°C
Ts -10°C
- (04-23) -
Ts: Setting temperature
7. Various control
Chapters
Table of Contents
