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

Max C ombination: 4 modules; Max Capacity: 180kW (64HP) 5 Basic Modules (8/10/12/14/16HP) MODULAR OUTDOOR UNIT RANGE kW

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

Duct Type Indoor Unit (High ESP/Low ESP/Build-in Water Pump/Build-in EXV) Cap (kW) Cap (TR) INDOOR UNIT RANGES 4-Way Cassette Indoor Unit Cap (kW) Cap (TR)

1.DC Inverter Compressor 2.DC Inverter Fan Motor Link Control. 3.Precision Capacity Output Control Technology 4.Excellent Refrigerant Balance Technology 5.Original Created High Pressure Chamber Oil Balance 6.Environment friendly R410A Refrigerant 7.Hyper Heating & Intelligent Defrost Technology 8.Superior Controllers & Software Support TECHNICAL FEATURES

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. Number of pole-pairs of compressor motor Induction motor slip ratio Input Power frequency of compressor Compressor motor rotating speed Compressor Capacity Input frequency 20Hz~120Hz 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. 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 180 Degree Sine Wave DC Inverter Driving Technology + PWM Capacity Control Technology

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. Lower Noise and Vibration! High pressure gas inside the compressor shell, lower exhaust pressure fluctuation. 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 HP Chamber structure can raise the high and middle frequency performance New DC motor (centralized roll) raise the low frequency performance Compressorefficiency Rotating speed Original design New design Highly raise the low frequency performa nce Enhanced Compressor Performance

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

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

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 Furthest prevent the negative effect of unbalance refrigerant flow between the modules:

Liquid Pipe RUNNINGRUNNING Gas Pipe STOP EXV Prevent Refrigerant from entering Refrigerant recovered by the other two modules EXV EXV Liquid Pipe CLOSED OEPN OPEN EXCELLENT REFRIGERANT BALANCE TECHNOLOGY An example of three module combination:

 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.  2 ： Adopt new oil separator ， original oil balance pipeline design ， achieves an efficient oil link-balance between modules.  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. High pressure chamber oil balance technology ORIGINAL CREATED HP CHAMBER OIL BALANCE

1) Digital Compresser stepless output 2) DC inverter fan motor smooth speed regulation What’s the benefit from Dual-Technology Link Control? According to Ambient conditions the modules can learn from each other and link- control the fan motors. Achieve the pressure balance between the modules without having high pressure protection. Strongly support the equalizing control for the refrigerant. Ensure the indoor side refrigerant supplying. Dual Tech Link-Control ORIGINAL CREATED PRESSURE BALANCE TECHNOLOGY High Pressure Balance Technology through the control of:

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 ENVIRONMENT FRIENDLY R410A REFRIGERANT

Multi-Compressors Time-Division Starting Technology can avoid a big starting current, reduce the impact to power network and realize the soft-start. Utilizing the advantage of quick start speed of the fixed speed compressors, it can satisfy the big heating capacity in very short time. Digital Scroll Compressor can immediately perform Big Capacity Operation right after it started, providing higher Heating Capacity. HYPER HEATING TECHNOLOGY Reaching 100% heating capacity Only in 30 seconds! （ 84kW System ） Time(Minute)

Traditional Defrost Program Simply execute defrosting according to the set timing. The defrost timing is not complied with actual operation requirement. INTELLIGENT DEFROST TECHNOLOGY 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

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 VARIOUS CONTROLLERS

LONG DISTANCE MONITORING SYSTEM Advanced Net Work Communication realizing a long distance centralized control SUPERIOR CONTROLLERS & SOFTWARE SUPPORT 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)!