Controls At Mode Changing / Start-Up - Daikin FLXS-BAVMB Service Manual

Control Specification
3.3

Controls at Mode Changing / Start-up

3.3.1 Preheating Operation
Outline The inverter operation in open phase starts with the conditions of the preheating command from
the indoor unit, the outdoor temperature, and the discharge pipe temperature.
Detail
ON Condition
OFF Condition
Outdoor temperature ≥ 7°C → Control A
Outdoor temperature < 7°C → Control B
Control A
Control B
39
RK(X)S25/35E2V1B, RK(X)S25/35G2V1B
When the discharge pipe temperature is below 10ºC, the inverter operation in open phase
starts.
When the discharge pipe temperature is higher than 12ºC, the inverter operation in open
phase stops.
RK(X)S25/35G2V1B9, RXS25/35J2V1B
ON condition
Discharge pipe temperature < 10°C
OFF condition
Discharge pipe temperature > 12°C
Radiation fin temperature ≥ 90°C
ON condition
Discharge pipe temperature < 20°C
OFF condition
Discharge pipe temperature > 22°C
Radiation fin temperature ≥ 90°C
SiBE05-722_B
Function and Control