WMV-SERIES MODULAR DC INVERTER VRF

ALWAYS BETTER CAC SOLUTION FROM GREE

GENERAL FEATURES HIGH LIGHT

• • • • • • Powered by DC Inverter Technology 50Hz/60Hz Power Supply Modular Outdoor Unit Design Max ODU capacity 180kW (4 x modules) 7 type of indoor units from 2.2 to 28kW Max Indoor unit connection: 64 units

MODULAR OUTDOOR UNIT RANGE

5 Basic Modules (8/10/12/14/16HP) 22.4 28.0 33.5 40.0 45.0kW

Max C ombination: 4 modules; Max Capacity: 180kW (64HP)

INDOOR UNIT RANGES Wall Mounted Indoor Unit (Build-in EXV Optional) Cap (kW) Cap (TR) 2.2

2.8

3.6

4.5

5 5.6

7.1

8 0.6 0.8 1.0 1.3 1.4 1.6 2.0 2.3 Floor & Ceiling Indoor Unit Cap (kW) Cap (TR) 2.8

0.8 3.6

1.0 5 1.4 7.1

2.0 9 2.6 11.2

3.2 12.5

3.6

INDOOR UNIT RANGES Duct Type Indoor Unit (High ESP/Low ESP/Build-in Water Pump/Build-in EXV) Cap (kW) Cap (TR) 2.2

0.6 2.8

0.8 3.6

1.0 4.5

1.3 5.6

1.6 7.1

2.0 9 2.6 11.2

3.2 14 4.0 4-Way Cassette Indoor Unit Cap (kW) Cap (TR) 2.8

0.8 3.6

1.0 4.5

1.3 5 1.4 5.6

1.6 6.3

1.8 7.1

2.0 8 2.3 9 2.6 10 2.9 11.2

3.2 12.5

3.6

TECHNICAL FEATURES

1.

2.

3.

4.

5.

6.

7.

8.

DC Inverter Compressor DC Inverter Fan Motor Link Control.

Precision Capacity Output Control Technology Excellent Refrigerant Balance Technology Original Created High Pressure Chamber Oil Balance Environment friendly R410A Refrigerant Hyper Heating & Intelligent Defrost Technology Superior Controllers & Software Support

DC INVERTER COMPRESSOR

Rotating speed of the compressor and input frequency is linear relation, compressor speed changed by adjusting the input power frequency, so that the compressor capacity is changed.

n

 60

f

( 1 

s

)

p

The Rotor of DC Inverter compressor is permanent magnet, which has no energy loss from induction current heat generating, it’s the key of energy saving.

Compressor Capacity

n f s p

Input frequency 20Hz~120Hz Compressor motor rotating speed Input Power frequency of compressor Induction motor slip ratio Number of pole-pairs of compressor motor

DC INVERTER COMPRESSOR

WESTPOINT DC Inverter VRF powered by HITACHI DC Inverter Scroll Compressor —— Variable Speed thanks to permanent magnetic synchronous motor, lower energy loss.

—— High Pressure Chamber Design —— New DC motor Design (Centralized Roll) —— WESTPOINT Driving Technology + PWM Capacity Control Technology 180 Degree Sine Wave DC Inverter

DC INVERTER COMPRESSOR

What’s High Pressure Chamber?

Compressed gas discharged from the fix scroll full fills the whole hermetic chamber of compressor, then goes out from the exhaust, that the whole compressor shell is high temperature and the pressure inside the compressor chamber is high (except suction inlet and the suction chamber).



Higher Efficiency! High pressure chamber compressor direct suction, no overheat suction loss, increase compressor efficiency.

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Lower Noise and Vibration! High pressure gas inside the compressor shell, lower exhaust pressure fluctuation.

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Higher Reliability! Oil and exhaust gas well separated inside the compressor, using the pressure difference to satisfy the oil supply, which is not depended on compressor rotating speed, and high reliability in lubricating and sealing

DC INVERTER COMPRESSOR

Enhanced Compressor Performance HP Chamber structure can raise the high and middle frequency performance New DC motor (centralized roll) raise the low frequency performance Highly raise the low frequency performa nce New design Original design Rotating speed

DC INVERTER FAN MOTOR LINK CONTROL TECHNOLOGY

Various Optimized Air Flows For different loading status of compressors DC Inverter Fan Motor Communication between Modules Sine-wave Driving Control Cross-learning between Modules Smoother Fan Motor Operation Flexible Fan Motor Adjusting Most Optimized Operation

PRECISION CAPACITY OUTPUT CONTROL TECHNOLOGY

Software programming for precision capacity out put control: PID Self-adoption Control Thanks to the PID Self-adoption, the system can find out a best compressor output that satisfies both temperature control & system stability Simulating curved face for a Smooth Capacity Output of the WMV-RM Modular VRF System

PRECISION CAPACITY OUTPUT CONTROL TECHNOLOGY Principle of Precision Control

(1)Capacity division between ODU Modules Principle:

Capacity output of each module not exceed 75% of the module capacity.

(2)Capacity division between compressors in a single module.

Principle:

After total capacity divided to each module, the system will use overflow handling to divide the capacity again to Inverter compressor and fixed speed compressors, that is to start to the Inverter compressor first, after Inverter compressor full loaded, start the 1st fixed speed compressor then 2nd fixed compressor.

EXCELLENT REFRIGERANT BALANCE TECHNOLOGY

Furthest prevent the negative effect of unbalance refrigerant flow between the modules: Analysis the Operating Status of each module Detail situation of unbalanced refrigerant Flow between modules Precise adjustment is done Real-time refrigerant flow monitoring Precise control redistributes the refrigerant flow Sending control signal to the EMV and EXV

EXCELLENT REFRIGERANT BALANCE TECHNOLOGY An example of three module combination:

STOP RUNNING RUNNING Prevent Refrigerant from entering EXV CLOSED Refrigerant recovered by the other two modules Liquid Pipe Gas Pipe EXV OEPN Liquid Pipe EXV OPEN

ORIGINAL CREATED HP CHAMBER OIL BALANCE High pressure chamber oil balance technology

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1

：

High pressure chamber compressor

，

has its own patent design of oil balance pipe

，

makes the oil that higher than the oil outlet can discharge automatically, avoid the compressor from leak of oil.

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2

：

Adopt new oil separator

，

original oil balance pipeline design

，

achieves an efficient oil link-balance between modules.

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3: Cyclical oil balance program design insures the lowest running oil volume under any critical working condition, it is a highly reliable oil balance model.

ORIGINAL CREATED PRESSURE BALANCE TECHNOLOGY

High Pressure Balance Technology through the control of:

1) Digital Compresser stepless output 2) DC inverter fan motor smooth speed regulation

Dual Tech Link-Control

What’s the benefit from Dual-Technology Link Control?

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According to Ambient conditions the modules can learn from each other and link control the fan motors.

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Achieve the pressure balance between the modules without having high pressure protection.

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Strongly support the equalizing control for the refrigerant.

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Ensure the indoor side refrigerant supplying.

ENVIRONMENT FRIENDLY R410A REFRIGERANT

R410A is environment friendly refrigerant, with higher heat transfer performance, lower pressure-loss, smaller temperature-slipping and ZERO ODP .

Minimize the system piping dimension design, that reduce huge amount of total refrigerant

HYPER HEATING TECHNOLOGY

50 45 40 35 30 25 20 15 10 5

Reaching 100% heating capacity Only in 30 seconds!

（

84kW System

） 0 00:00 00:05 00:10 00:15 00:20 00:25 00:30 00:35 00:40 00:45 00:50

Multi-Compressors Time-Division Starting Technology can avoid a big starting current, reduce the impact to power network and realize the soft-start .

Digital Scroll Compressor can immediately perform Big Capacity Operation right after it started, providing higher Heating Capacity.

Utilizing the advantage of quick start speed of the fixed speed compressors, it can satisfy the big heating capacity in very short time.

INTELLIGENT DEFROST TECHNOLOGY

• •

Traditional Defrost Program

Simply execute defrosting according to the set timing.

The defrost timing is not complied with actual operation requirement.

Defrost without any capacity fading Heat loss

INTELLIGENT DEFROST TECHNOLOGY

• • • •

Intelligent Defrost Technology

Humanization Technology which considers the maximization of user’s benefit.

Defrosting Program is designed from the attention of heating efficiency and operation reliability Precise Defrosting timing, which is intelligent in deed.

Defrosting control includes pressure optimizing, that can obviously lengthen the time gap between two defrost operations, reduce the times of defrosting, energy loss has been decrease by 75% with highly comfortable heating operation.

Defrost starts only while there is a certain capacity fading

SUPERIOR CONTROLLERS & SOFTWARE SUPPORT

VARIOUS CONTROLLERS

Centralized controller: Connect up to 1024 indoor units Individual & Group control Week timer Self-checking Function Up to 1000M distance of cable connection (extendable) Smart Zone Controller Connect up to 16 indoor units Wired Controller (touch button) Wired Controller (Standard LCD type) Wireless Remote Controller (Various choices)

SUPERIOR CONTROLLERS & SOFTWARE SUPPORT

LONG DISTANCE MONITORING SYSTEM Advanced Net Work Communication realizing a long distance centralized control All Indoor Units are connected to one network bus, easy group and easy administration.

WESTPOINT

Patent technology – No Limited Group Control, never worry about the control of your thousands indoors.

SUPERIOR CONTROLLERS & SOFTWARE SUPPORT

TESTING & DEBUGGING TOOLS (BOTH SOFTWARE AND PORTABLE DEBUGGER) Exhaust Temp, Condensing Pipe Temp, Steps of EXV, High pressure value… All that you have to is plug and check!

PORTABLE DEBUGGER

SUPERIOR CONTROLLERS & SOFTWARE SUPPORT

PIPING DESIGN SOFTWARE –

WESTPOINT

WMV SELETOR V3.0

Easy Piping Design for your WMV System from WMV SELECTOR V3.0

Saving your design to Microsoft Excel (2003 & 2007) and AutoCAD (2004 & 2008)!