r410a dc inverter vrf for north america 2012 · pdf file midea proudly introduce the r410a dc...
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R410A DC Inverter VRF For North America
Commercial Air Conditioner Business Units Midea Air Conditioning and Refrigeration Sector Add: West region of Midea commercial air conditioner department, Industry Avenue, Beijiao, Shunde, Foshan, Guangdong, P.R. China Postal code:528311 Tel：+86-757-22394101 Fax: +86-757-26338003 http://www.midea.com http://www.mideaaircon.com
Midea CAC (MCAC) As a key part of Midea Group, the Midea Central Air Conditioner (CAC) Business Unit is a professional CAC products supplier and commercial products solution expert. Since 1999 Midea central air-conditioner contributes to the commercial product R&D and technology innovation. By cooperating with the international enterprises plus the independent R&D, Midea CAC achieves big success in the commercial air-conditioner market and has established thousands of sample projects all over the world.
Right now Midea CAC is one of the most professional CAC products supplier as well as the professional project solution provider in marketing, sales, project design and after service etc.
MCAC Chongqing factory with 14 product lines concentrates on the water cooled centrifugal / screw/ scroll chillers, Air cooled screw/ scroll chillers, AHU/FCU etc. MCAC Shunde factory with 31 product lines concentrates on the VRF (DC inverter product/ Digital scroll product), split product, heat pump water heater, AHU/FCU etc.
From its humble beginnings in 1968, Midea has developed into a large corporation, covering HVAC, appliances, lighting, industrial components, logistics, and real estate. Its 40 years of relentless growth has brought its global turnover to $14 billion USD in 2009. Consequently, Midea has created over 150,000 jobs both within China and all over the world. In addition to providing affordable goods to consumers worldwide, Midea is a responsible corporate citizen, and has contributed to several social causes. Midea believes in creating value through rapid response to market demands, cost-efficient operations and consumer satisfaction. As a result, Midea wields vast production capacities to meet these demands, a fully integrated manufacturing process, and a comprehensive range of affordable, high-quality products to serve its global customers.
Today, Midea is a home appliance leader in China. The company continues to actively globalize its operation by opening plants in Vietnam, Belarus and Egypt. Additionally, Midea has several forthcoming plants in order to offer enhanced products and services closer to the market.
Midea proudly introduce the R410A DC Inverter VRF products-the DC Inverter V4
Plus and Full DC Inverter Mini VRF.As a new products especially developed for
North America market, they have advantages of high efficiency,good performance
and smart control.Midea R410A DC Inverter VRF products adopt the advanced DC
inverter technology,not only have all the advantages of the VRF system-Energy
saving,Easy installation and Easy management,but also have their particular and
outstanding features. The wide capacity range and numerous of outdoor and
indoor units make they can be applicable for a variety of occasions.
Developed to facilitate more flexible system design for various of buildings
R410A DC Inverter VRF Series
DC Inverter V4 Plus
Full DC Inverter Mini VRF
R410A DC Inverter VRF 06R410A DC Inverter VRF05
Optimized fan blade shape with new air outlet grille enhanced air flow volume which makes fan performance greatly improved and without increased noise. Also, a higher external static pressure has been achieved optionally-from 0.08in.WG to 0.32in.WG.
New blade with sharp edge and little curve increases the airflow Rate and lowers down vibration and airflow resistance.
New profile fan blade
High performance heat exchanger
High efficiency full DC inverter compressor
New structure-enhanced mid-frequency performance Specially designed scroll profile for R410A
More compact, weight reduced by 50%
Advanced permanent magnet DC motor improves the low frequency band performance
V4+ series achieves the industry's top class energy efficiency of cooling and heating by utilizing the Brushless Reluctance DC compressor control, DC Fan motor, and improved performance heat exchanger. High efficiency DC inverter compressor saves power consumption by 25%.
The V4 plus which is well flexible designed for applicable for a variety of occasions.Offering a higher capacity up to 51.2ton,meeting requirements of big capacity.It also incorporates numerous outstanding features,a larger capacity range of outdoor units and indoor units,longer level difference and actual piping and high extenal static pressure.The V4 plus VRF product provides a flexible design and easy installation in big-sized and high-rise building for wide application.
DC Inverter V4 Plus
0.2 0.4 0.6 0.8 1
Relative frosting rate
200 400 600 800 1000 Re
Windage& air flow
New design Original design
High efficiency inner-thread pipe, enhance heater transfer.
DC Inverter V4 Plus
NEW Fashion Design
R410A DC Inverter VRF 08R410A DC Inverter VRF07
18 steps vector control
High efficiency MDV V4 PLUS with high efficient DC compressor and DC motor, achieved the world’s Top Class energy efficiency.
By adoption of the 180°SineWave Inverter which smooths the rotation of the motor, operation efficiency is improved sharply than traditional sawtooth wave.
Smooth 180°sine wave DC Inverter
DC fan motor
HIGH EFFICIENCYCompressor efficiency
New DC motor-centralized winding
Common DC motor-distributing winding
20 40 60 80 100 Rotor speed(s-1)
According to the running load and pressure, it controls the speed of DC fan to achieve the min. power consumption.
Used across entire range of models (from 7.2~51.2Ton). Efficiency improvement by up to 45% especially at low speed.
Powerful magnets provide high torque and efficiency and achieve 70% reduction in volume. Main Features
Wide operation Range
V4 PLUS intelligent defrost improve the heat capacity Common sawtooth wave 180° Sine Wave DC inverter
45% Increased by
MOTOR SPEED (RPM)
defrost 191.3 182.4 173.4 164.4 155.4 146.4 137.4 128.4 119.4 110.4 101.4 92.4 83.4 74.4 65.4 56.4 47.4 38.4 29.4 20.4 11.4 2.4
-6.6 -15.6 -24.6 -33.6 -42.6 -51.6 -60.6
180.4 171.4 162.4 153.4 144.4 135.4 126.4 117.4 108.4 99.4 90.4 81.4 72.4 63.4 54.4 45.4 36.4 27.4 18.4 9.4 0.4
Outdoor temp. °F(D.B.)
23°F Outdoor Temperature
No matter in extremely cold winter when outdoor temperature down to as low as -4°F or in hot summer when temperature is up to 118°F, the V4+ system will keep stable operation.
-4°F 14°F 32°F 50°F 68°F 86°F 104°F 122°F
R410A DC Inverter VRF 10R410A DC Inverter VRF09
High efficiency oil balance and oil return technology
In one combination, any of the outdoor unit can run as the master outdoor unit, to realize the equal lifespan among the outdoor units in the combination.
Alternative Cycle Duty operation of outdoor units
Any single unit can be set as the master unit in a multiple system when the previous master unit failed and other units left will keep on operating. This can be set on PCB by DIP switches at site.
Outdoor module Back up operation
Oil balance pipe between modules
Oil even pipe I
Refrigerant flow direction
Oil even pipe II
Oil balance pipes among modules and individual oil balance by vector control ensure even oil distribution among the modules which keeps compressor running nomally. High effciency centrifugal oil separator(up to 99%) makes oil separate from discharge and go back to compressor. Auto oil return program by monitoring the running time and state of system ensures reliable oil return.
ENHANCED COMFORT Intelligent soft start technology