Specifications

A collection of cutting-edge technologies
realises efficient and quiet operation
1
5
DC fan motor
3
Compact aero box
Realises a compact casing by stacking the Inverter and
control PCBs plus optimising the internal design to suit
airflow speed. This achieves low noise and reduces the
power required by the large-diameter fanned outdoor unit.
• Efficiency improvement by approximately 40% especially at
low speed.
4
Smooth sine wave DC Inverter
By adoption of the Sine Wave, which smoothes the
rotation of the motor, operation efficiency is improved
sharply.
DC fan motor
structure
Reluctance
DC motor
High efficiency compressor
Reluctance DC scroll compressor
Daikin’s unique scroll compressor reduces heat loss, and is driven
by a high efficiency motor to achieve significant energy savings.
By introducing high pressure oil, the reactive force from the fixed
scroll is added to the internal force, thereby reducing thrust losses.
This results in improved efficiency and suppressed sound levels.
High-performance, low-noise scroll compressor
operates at a fast rate. The speed increase has been
achieved through advanced stress analysis for
increased strength and utilisation of the advantages
(oil film control) of the high thrust mechanism.*
*High thrust mechanism
200 300 400 500 600 700 800 900 1000
0
20
40
80
60
100
Efficiency (%)
Motor speed ( rpm )
AC motor
AC motor
AC motor
AC motor
AC motor
DC motor efficiency
( comparison with AC motor )
Approx.
Approx.
40%
40%
increase
increase
Approx.
40%
increase
DC motor
DC motor
DC motor
DC motor
DC motor
High torque and efficiency is attained with the adoption of
neodymium magnets.
Neodymium magnets are well known for
their powerfulness compared to commonly
used ferrite magnets.
Use of neodymium magnets in the motor enables efficient
generation of high torque.
Powerful magnets
Note: Data are based on studies conducted under controlled conditions
at a Daikin laboratory.
Thanks to an optimised e-Pass heat exchanger, heat
change effectiveness has been increased, thus
contributing to a high COP.
2
Heat exchanger
6
2
4
3
1
5