Daikin RXYMQ5PVE [4/20] High cop achieved in all ranges

Daikin RXYMQ5PVE [4/20] High cop achieved in all ranges
Energy efficiency and quiet operation
Outdoor units use Daikin’s unique scroll compressor to realise energy saving
performance and quiet operation.
MAIN FEATURES
High COP during both cooling and
heating operations
Quiet operation provides
luxurious comfort
Quietness is yet another important feature
of Daikin’s VRVIII-S system. To reduce
noise and realise comfortable operation,
latest technologies and features are
applied to the outdoor units.
One of the top features of the VRVIII-S is
its energy efficiency. It achieves high COP
during cooling and heating operations by
employing Daikin’s unique scroll
compressor.
Above values are based on the following nominal conditions:
• 2 Ceiling Mounted Cassette (Round Flow) type units are connected (4 HP:
FXFQ50P x 2; 5 HP: FXFQ63P x 2; and 6 HP: FXFQ63P + FXFQ80P.)
• Cooling: Indoor temp. of 27°CDB, 19°CWB, and outdoor temp. of 35°CDB.
• Heating: Indoor temp. of 20°CDB, and outdoor temp. of 7°CDB, 6°CWB.
VRVII-S
Previous model
RXYM-MVM
VRVII-S
Previous model
RXYM-MVM
Lower operation sound is achieved
in cooling operation!
Cooling
Heating
3.28
3.19
3.41
2.92
Cooling
50
51
4 HP
5 HP
5 HP
3.65
4 HP
6 HP
5 HP
3.68
4 HP
6 HP
51
52
65
Nighttime quiet operation function
Set on the outdoor PCB. Time of maximum
temperature is memorised. The low operating mode
will become active 8 hours*
1
after the peak
temperature in the daytime, and operation will return to
normal 10 hours*
2
after that. The operation sound
level for the night mode can be selected from 47 dB(A)
(Step 1), 44 dB(A) (Step 2) and 41 dB(A) (Step 3).
Automatic mode
Mode 1.
Automatic mode
Mode 1.
Starting time and ending time can be input. (An external
control adaptor for outdoor unit, DTA104A61 or
DTA104A62, and a locally obtained timer are
necessary.)
Manual mode
Mode 2.
Combinations of modes 1 and 2 can be used
depending on your needs.
Combined mode
Mode 3.
*1. Initial setting. Can be selected from 6, 8 and 10 hours.
*2. Initial setting. Can be selected from 8, 9 and 10 hours.
Note:
• This function is available in setting at site.
• The relationship of outdoor temperature (load) and time shown in the
graph is just an example.
Peak in outdoor temperature
Capacity %
8 hrs 10 hrs
Operation sound dB(A)
47
8:00 12:00 16:00 20:00 0:00 4:00 8:00
50
100
50
0
Load %
Night mode endsNight mode starts
Night mode endsNight mode starts
Night Mode
44
41
(Initial setting)(Initial setting)
Step 1 max. - 3 dB(A)
( 4 HP/11.2 kW)
Step 2 max. - 6 dB(A)
( 4 HP/11.2 kW)
Step 3 max. - 9 dB(A)
( 4 HP/11.2 kW)
Step 1: 47 dB(A)
Step 2: 44 dB(A)
Step 3: 41 dB(A)
-1dB(A)
-1dB(A)
1 dB(A) reduced
in each model!
High COP
achieved
in all ranges!
Operation sound level selectable
from 3 steps for the night mode
The capacity reduction rate differs depending on the operation sound level
step selected.
These two features work to reduce sound.
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.
Smooth Air Inlet Bell Mouth and Aero Spiral Fan
A collection of cutting-edge technologies
realises efficient and quiet operation.
The high efficiency compressor to achieve a higher COP
2
1
Note: Data are based on
studies conducted under
controlled conditions at
a Daikin laboratory.
Note: Data are based on studies conducted under
controlled conditions at a Daikin laboratory
using Daikin products.
*1 A neodymium magnet is approximately 10 times
stronger than a standard ferrite magnet.
*2 The torque created by the change in power
between the iron and magnet parts.
DC fan motor
Efficiency improved in all areas compared
to conventional AC motors, especially at
low speeds.
Sine wave DC inverter
>> Smooth sine wave DC inverter
Use of an optimised sine wave smoothes motor rotation, further improving
operating efficiency.
Daikin DC inverter models are equipped with the Reluctance DC
motor for compressor. The Reluctance DC motor uses 2 different
types of torque, neodymium magnet*
1
and reluctance torque*
2
. This
motor can save energy because it generates more power with a
smaller electric power than an AC or conventional DC motor.
Compressor equipped with Reluctance DC motor
3
DC motor efficiency
(comparison with 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
Reluctance DC motor
Conventional DC motor
AC motor
Rotational speed (rps)
Motor efficiency (%)
DC fan motor structure
RX(Y)MQ4PVE
RX(Y)MQ5PVE
RX(Y)MQ6PVE
Reluctance
DC motor
3
1
2
Escaping eddies are sucked in by
the bent blade edges, reducing
overall turbulence.
With the bent
blade edge
Without the bent
blade edge
90
80
70
60
50
0 30 60 90 120
More than 20%
More than 20%
Small load
Low capacity
Large load
High capacity

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