Daikin ARXN25MV1B, Service Manual

Page: 24 / 73

Function & Control
18
2.13 Outdoor Fan Control
Determine from
• Compressor target rotation: higher fan speed with higher rotation.
• Outdoor air temperature.
Cool mode: Higher fan speed with higher outdoor air temperature.
Heat mode: Higher fan speed with lower outdoor air temperature.
When compressor stops, fan OFF delay 30 seconds is carried out
2.14 Rotation Regulating Functions
Upper limit rotation
Limit rotation Command rotation
Starting rotation
∆ T
Defrost*
Lower limit rotation
Target rotation
* Defrost control for heat pump model only
2.14.1 Starting Rotation
Starting Control
To avoid excessive oil discharge from compressor or to promote oil lubrication during startup.
To prevent liquid
fl ood back to the compressor.
To limit starting current.
When compressor starts to rotate from OFF to ON, compressor rotation is set to run gradually to each upper
limit at a speci
fi c timer setting.
Compressor
rotation, f
Time (min)
d
c
b
a
1 2
Model
a Hz
(Time, s)
b Hz
(Time, s)
c Hz
(Time, s)
d Hz
(Time, s)
Max Hz
(Time, s)
ARXN/RXN25/35L/M
38 (60) 52 (120) 66 (120) 80 (120) 94 (120)
ARXN/RXN50/60_L
RX50/60CG
35 (60) 55 (120) 75 (360) - -
ARXN/RXN50/60M
RXB50/60B
38 (60) 52 (120) 66 (120) 80 (120) 94 (120)