Daikin Super Multi Plus D-Series User Manual download pdf (Page 4)

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The Super Multi Plus E series outdoor units have been newly designed and use the latest

technologies to realise energy saving performance and quiet operation.

Energy efficiency and quiet operation

RMKS160E

Master bedroom 3.5 kW class

Bedroom (1) 2.5 kW class

Bedroom (2) 2.5 kW class

Power consumption 2,260 W

COP 3.63

High Energy Savings

With DC inverter power control the air

conditioner can operate at low capacity

most of the time. This is especially

important at night in a residential situation

when the whole family is at home. DC

inverter power control is able to achieve a

high COP even when multiple indoor units

operate simultaneously for long periods of

time.

During night time

Quiet operation features that achieve total comfort

Quietness is yet another important feature of Daikin’s Super Multi Plus E series. To

reduce noise and realise comfortable operation, latest technologies and features are

applied to the outdoor units, achieving the quiet operating sound level of 43 dB (A) in

night quiet mode.

Night quiet mode

Set on the outdoor PCB. Time of maximum

temperature is memorised. The low operating mode

will become active 8 hours*

after the peak

temperature in the daytime, and operation will return

to normal 10 hours*

after that. The operation sound

level for the night mode can be selected from 49 dB

(A) (Step 1), 46 dB (A) (Step 2) and 43 dB (A) (Step

3).

Automatic mode

Mode 1.

Automatic mode

Mode 1.

Starting time and ending time can be input. (External

control adaptor for outdoor unit, DTA104A61 or

DTA104A62, and a subsequently obtained timer are

necessary.)

Manual mode

Mode 2.

Combination of mode 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.

Notes: • 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 the outdoor temperature

8 hrs 10 hrs

Operation sound dB (A)

8:00 12:00 16:00 20:00 0:00 4:00 8:00

100

Load %

Night modeNight mode endsendsNight modeNight mode startsstarts Night mode endsNight mode starts

Night Mode

(Initial setting)(Initial setting)

Step 1 max. - 3dB (A)

(11.2 kW)

Step 2 max. - 6dB (A)

(11.2 kW)

Step 3 max. - 9dB (A)

(11.2 kW)

Step 1: 49 dB (A)

Step 2: 46 dB (A)

Step 3: 43 dB (A)

Operation sound level selectable

from 3 steps for the night mode

The capacity reduction rate differs depending on the operation sound level

step selected.

Capacity %

These two new features work to significantly

reduce noise. Guides are added to the bell

mouth intake to reduce turbulence in the

airflow generated by fan suction. The new

Aero Spiral Fan features fan blades with bent

blade edges, further reducing turbulence.

Smooth Air Inlet Bell Mouth and Aero Spiral Fan

A larger sub-cooled area reduces refrigerant flow sound by making it easer to form

a liquid seal in front of the electrical valve.

SC heat exchanger

Super Aero Grille

Refined ventilation mechanism enables further reduction in required fan power.

Escaping eddies are sucked

in by the bent blade edges,

reducing overall turbulence.

Conventional

Newly developed

A collection of cutting-edge technologies

realises efficient and quiet operation.

Improving the high efficiency compressor

to achieve a high COP

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.

Sine wave DC inverter

>> Smooth sine wave DC inverter

Use of an optimised sine wave

smoothes motor rotation, further

improving operating efficiency.

Use of neodymium magnets in the motor

enables efficient generation of high torque,

reducing the size of the compressor.

>> Powerful magnets

Changes to the shape of the spiral and volume

ratio result in optimal refrigerant layout.

>> Optimal refrigerant configuration

The strength of the casing has been increased

by boosting the internal dome pressure.

>> Stronger materials

Neodymium magnets are

much more powerful than

the commonly used ferrite

magnets.

Ferrite magnet

Neodymium magnet

DC motor efficiency

(Comparison with a conventional AC motor)

200 300 400 500 600 700 800 900 1000

100

Efficiency (%)

Motor speed (

rpm

)

AC motor

AC motorAC motor

Approx.

40%

increase

Approx.

20%

increase

DC motorDC motorDC motorDC motorDC motor

DC fan motor structure

Neo aero spiral fan blade tips

RMKS112E

RMKS140E

RMKS160E

Reluctance

DC motor

Overheating losses are reduced by pressurising the area

around the motor, boosting energy saving performance in

conjunction with other features.

Reluctance DC Scroll Compressor

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 thrust mechanism

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Daikin Super Multi Plus D-Series User Manual Page 4

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