Inverter & Energy Saving Technology
Joint Lap DC Motor
Highly Efficient DC Scroll Compressor
DC Fan Motor
Highly Reliable Flat Fin
( M Series )
Our unique motor, known as
Magnetic Flux Vector Sine Wave Drive
By converting the motor’s electrical current waveform from the conventional waveform to a sine wave (180° con- ductance), this microprocessor raises the motor winding utilization ratio and reduces energy loss for higher efficiency.
( PUHZ Series )
The highly efficient scroll com- pressor is equipped with a “Frame Compliance Mechanism” that allows movement in the axial direction of the frame supporting the cradle scroll. This greatly reduces both leakage and friction loss, ensuring very high efficiency throughout the speed range.
Fixed scroll
Frame movable in the direction of the axis.
2002
JSRAE
TECHNOLOGY AWARD
Japan Society of
Refrigerating and Air
Conditioning Engineers
Leakage loss: minimum
Thrust gas power: minimum
Thrust friction loss: minimum
A
Power Receiver and Twin LEV Control
( PUHZ Series )
Mitsubishi Electric has developed a power receiver and twin LEVs (linear expansion valves) that optimise the performance of the compressor. By ensuring optimum control in response to the operating waveform and outdoor temperature, this technology is tailored to the characteristics of the new refrigerant to enhance operating efficiency.
Thanks to the flat fin preventing clogging, the initial high energy efficiency is maintained throughout the unit's long lifespan.
Energy Efficiency Stays Strong
( 3 times stronger than conventional Fins )
Efficiency | 100% |
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| Flat | Fin Efficiency | ||
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| 90% |
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| 80% |
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| Conventional | Fin Efficiency | ||
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| 70% |
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| 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
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| *The initial period is set at 100%. |
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| Number of Years in Use | ||||||||||
Energy Labeling of Air Conditioners
Energy | Air Conditioners |
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Reluctance DC Rotary Compressor
( PUHZ Series )
The reluctance DC motor has a rotor equipped with
Remarkable
reduction
in leakage and friction loss
Secondary
Primary
Heat | Compressor |
exchanger |
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Heat
Manufacturer
Outdoor unit
Indoor unit
More efficient
A
B
AIR CONDITIONING SYSTEMS |
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A B C | 1 2 3 |
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| Model Name |
A B C | 1 2 3 |
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| A |
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| Energy Efficiency Class |
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Frame Cradle scroll
Power
C
receiver
exchanger
D
E
F
PAM (Pulse Amplitude Modulation)
Electricity can be used efficiently with less loss, if the current wave resembles the supply voltage wave. PAM is a method for controlling the form of the current wave so that it conforms to the supply voltage wave. With PAM control, 98% of input power supply can be effectively used.
Without PAM Control | With PAM Control |
Supply |
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LEV1 LEV2
“Econo Cool” Energy-Saving Feature
( PUHZ Series , M Series )
This intelligent temperature control feature — that adjusts airflow interval to the body depending on air outlet temperature — allows set temperatures to be raised by 2 degrees without any loss in comfort for a 20% gain in energy efficiency.
G
Less efficient
Annual energy consumption, kWh in cooling mode
(Actual consumption will depend on how the appliance is used and climate.)
Cooling output | kW |
Energy efficiency ratio
Full load (the higher the better)
Type Cooling only | – |
Cooling + Heating | – |
Air cooled | – |
– |
Annual Energy Consumption
X.Y | The Annual Energy Consumption is | |
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| calculated with the total input power |
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| multiplied by an average of 500 hours |
X.Y | per year in cooling mode at full load. | |
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| X.Y | Energy Efficiency Ratio |
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| Higher EER means better |
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| energy efficiency. |
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| Type of Air Conditioner |
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powerful neodymium magnets. The magnetic torque produced by the neodymium magnets and reluctance torque results in more efficient operation.
DC compressor motor ( rotor ) | Neodymium magnets |
Magnetic torque
+
Reluctance torque
Vector-Wave Eco Inverter
This produces the most efficient waveform in response to varying compressor motor frequency. By improving operating efficiency from low to high speeds, annual
voltage |
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Current |
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Time | Time |
PAM adjusts the form of the current wave so that it becomes close to that of the supply voltage wave. High harmonics are reduced and 98% of the electricity is utilized.
This diagram illustrates the merits of PAM Control.
| Conventional | Econo Cool |
Ambient temperature | 35°C | 35°C |
Set temperature | 25°C | 27°C |
Perceived temperature | 30°C | 29.3°C |
“Econo Cool” mode
Ensures more comfort even when the set temperature is 2°C higher than the conventional cooling mode.
“Econo Cool” On | Conventional cooling mode |
Heat output | kW | X.Y |
Heating performance |
| A B C D E F G |
A: higher G: lower |
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Noise
(dB(A) re 1 pW)
Further information is contained in product brochures.
Norm EN 814
Air conditioner
Energy Label Directive 2002/31/EC
Classifications
All air conditioners with the cooling capacity under 12kW are concerned.
Directive defines for each type of product the energy class going from A (more efficient) to G (less efficient).
electricity costs are reduced.
Smooth wave pattern |
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The inverter has been made compact by
Using a Motorcycle as an example
Significant energy savings.
Electricity loss reduced for surprising energy savings.
Energy savings is limited.
Fuel is wasted.
Power increased.
Efficient increase
of voltage for increased power.
PAM
Conventional
Inverter
Power is limited.
Power is insufficient for steep hills.
Temperature distribution ( °C)
14 16 18 20 22 24 26 28
The energy efficiency class is determined in accordance with the following tables.
Energy Efficiency Class | Energy Efficiency Class | ||||
In cooling mode | In heating mode | ||||
A | 3.20 < EER | A | 3.60 | < COP | |
B 3.20 ≥ EER > 3.00 | B | 3.60 | ≥ COP > 3.40 | ||
C 3.00 ≥ EER > 2.80 | C | 3.40 | ≥ COP > 3.20 | ||
D | 2.80 | ≥ EER > 2.60 | D | 3.20 | ≥ COP > 2.80 |
E | 2.60 | ≥ EER > 2.40 | E | 2.80 | ≥ COP > 2.60 |
F | 2.40 | ≥ EER > 2.20 | F | 2.60 | ≥ COP > 2.40 |
G | 2.20 | ≥ EER | G | 2.40 | ≥ COP |
*These classifications are for Split and
7 | 8 |