Datasheet

43
Power Factor Correction
(PFC) Technology
With advanced partial active PFC control, the
input current waveform and voltage waveform
get phase synchronization, more than 97% of
the input power supply is used effectively, which
greatly improve power transformation efciency.
Energy SavingEnergy Saving
Midea models from residential to commercial
are reaching New class A ranking, the highest
level that is now shown on energy label in
Europe union.
New Energy Labelling Requirement (EU)
626/2011
• Three climate zones for heating
(Average zone is mandatory, warmer and
colder zone are voluntary)
• Seasonal efciency
(performance based on multiple part loads
calculation)
Sound power level
• Rated efciency indicates performance only at
a rated condition.
Seasonal efciency indicates performance at an
entire cooling and heating season, which better
matches the actual operation.
High Efciency
Current Energy Label New Energy Label
Intelligent on-off technology enables Midea
products automatically enter energy-saving
mode when on standby mode, cut energy
consumption from conventional 5W to 0.5W
which counts 90% of saving.
0.5W Standby
The brushless DC fan motor allows ne rotation
control, which reduces energy consumption. The
efficiency of brushless DC motor is up to 35%
higher than that of the equivalent AC motor.
Brushless DC Fan Motor
The indoor unit will display error code “EC”
when the system detects refrigerant leakage.
This new technology can better protect the
compressor.
Refrigerant Leakage Detect
Conventional anti-cold-air function works only
by evaporator temperature.
Midea intelligent anti-cold-air function works
by both evaporator and ambient temperature,
more accurate control ensure comfortable
feeling.
Up to 25 stages (F1~F25) of compressor
frequency, and frequency range increased
around 70%. More comfortable and energy
saving due to smooth and accurate control.
With advanced frequency-adjusting technology,
compressor preheating function and the
electrical heating belts, the unit can operate
heating as low as -20
0
C.
Intelligent Anti-cold-air Function
Wide Operation Range
5W
0.5W
Midea
Conventional
90％
off
Energy
Saving
Energy Consumption (W)
Full capacity
One point temperature condition
Annual efcient
operation
Current Energy Labeling Points
Rated efciency
EER
COP
Full capacity
One point temperature condition
New Energy Labeling Points
Seaaonal efciency
SEER
SCOP
Operating power consumption
Standby power consumption
Crank case heater
Thermo off
Annual Power Consumption
Reduce total
power
consumption
Operating Power
consumption
Low noise
products
Sound pressure level
New criteria
Sound power level
300
200
100
0
-100
-200
-300
15
10
5
0
-5
-10
-15
Current (Amps)
Voltage (Volts)
Passive PFC With PF=88%
300
200
100
0
-100
-200
-300
15
10
5
0
-5
-10
-15
Current (Amps)
Voltage (Volts)
Partial Active PFC With PF=97%
MideaConventional
Comperssor
Frequency
Comperssor
Frequency
25 Stage
15 Stage
Stages of compressor frequency
2013 ERP.indd 3-4 13-1-7 下午4:44