1
Technology for
efficient
and quiet operation.
Smooth running, minimal
vibration, low operating
noise
Scroll compressor
(RQ100/125/140LV1A)
4
3
1
2
Smooth Air Inlet Bell Mouth and
Aero Spiral Fan
Super Aero Grille
The grill is shaped to match the direction the fan blows
in order to tame the wind turbulence.
Escaping eddies are sucked in by
the bent blade edges, reducing
overall turbulence.
2
4
With the bent
blade edge
Without the bent
blade edge
These two features work to reduce noise. Guides are
added to the bell mouth intake to reduce turbulence in
the airflow generated by fan suction. The Aero Spiral
Fan features fan blades with the bent blade edges,
further reducing turbulence.
>> The structural scroll
Energy savings is realised,
eliminating the friction and
the leakage of refrigerant
gas.
>>
Swing compressor
Scroll section
Suction
Discharge
Motor section
Swing bushing
Refrigerant gas
Piston by incorporated
blade and roller.
RQ71LV1A
RQ100LV1A/125LV1A/140LV1A
Sucked gas is compressed in the
scrolling part before the heated
motor, so that the machine
compress the non-expanded gas,
resulting high efficiency compression.
Night time quiet operation function
The Automatic night quiet mode will initiate 8
hours after the peak temperature is reached in the
daytime, and normal operation will resume 10
hours after that.
RQ71L
Sound level
1
(dB
(
A
)
)
RQ100L
RQ125L
49
51
45
46
51
46
52
47
RQ140L
Rated
2
Night Quiet Mode
Note :
1
Anechoic chamber conversion value, measured according
to JIS parameters and criteria. During operation these
values are somewhat higher owing to ambient conditions.
2
Value when cooling. Value will differ when heating.
Reducing noise will reduce capacity slightly.
100
50
0
8:00
Peak in outdoor temperature
8 hours
Rated
10 hours
Quiet mode
Quiet mode
12:00
16:00
20:00
0:00
4:00
8:00
50
58
Capacity (%)
Load (%)
Operation
Sound (dB(A))
Note:
Data are based on
studies conducted
under controlled
conditions at a Daikin
laboratory.
DC fan motor
Efficiency improved in all areas compared to
conventional AC motors, especially at low speeds.
3
DC motor efficiency
(comparison with a conventional AC motor)
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
Approx.
40%
increase
Approx.
20%
increase
DC motor
DC motor
DC motor
DC motor
DC motor
DC fan motor
structure
6
