Controls At Mode Changing / Start-Up - Daikin ARXG35E3V1B Service Manual

SiBE04-809
3.3

Controls at Mode Changing / Start-up

3.3.1 Preheating Operation
Outline Operate the inverter in the open phase operation with the conditions including the preheating
command, outdoor air temperature and discharge pipe temperature from the indoor side.
Outside temperature ≥ 10°C → Control A (preheating for normal state)
Detail
Outside temperature < 10°C → Control B (preheating of increased capacity)
Control A
Control B
Note: The power consumption of compressor during preheat operation is 35 W.
Function and Control
ON condition
Discharge pipe temperature < 10°C
Fin temperature < 85°C
OFF condition
Discharge pipe temperature > 12°C
Fin temperature ≥ 90°C
ON condition
Discharge pipe temperature < 20°C
Fin temperature < 85°C
OFF condition
Discharge pipe temperature > 22°C
Fin temperature ≥ 90°C
Control Specification
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