dc inverter vrf air conditioning systems

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    CATALOGUE 2011

    DC Inverter VRF Air Conditioning Systems

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    YOUR CONDITIONS!

    Since 1916, pioneers in the US market, by designing and manufacturing innovative air conditioning and

    heat pump units. The companys primary competitive advantage is the use of its know-how expertise gained in the past,

    to build air conditioning systems of the future.

    The key to units' success is that they are specifically designed to enable the modern individual invent his

    own custom made living and working conditions. Regulating effectively the natural environment,

    units can create silently the perfect indoor conditions; your conditions!

    units can be found all across Europe in a con-

    tinuously growing selected network of air conditioning profes-

    sionals!

    Their excellent quality and operational efficiency has been

    awarded by the European Union with the highest standard

    certificates.

    Furthermore, the use of the environmental friendly refrigerants

    (freon) do not contribute to the increase of the global warming

    environment.

    ISO 9001

    ISO 14001

    INV

    Features Pages

    Higher Efficiency 4-5

    Better Comfort 6-7

    Higher Reliability 8-9

    Better Versatility 10-11

    Easy Installation & Maintenance 12-13

    INV Mini 14-15

    Outdoor Units Pages

    Line up 16-17

    Specifications 18-21

    Indoor Units Pages

    Line up 22-23

    Duct Type 24-27

    Slim Duct Type 28-29

    Four-way Cassette Type 30-33

    One-way Cassette Type 34

    Floor Standing Type 35

    Wall Mounted Type 36-37

    Floor Ceiling Type 38-41

    Treated Fresh Air Duct Type 42-43

    Control System Pages

    Control Network Sketch 44-45

    Controllers Comparison 46

    Comments of Control Functions 47

    Wired Remote Controller 48-49Wireless Remote Controller 50-51

    Group Controller 52

    Smart Zone Controller 53

    Centralized Controller 54

    IR Receiver & Key-card Control Board 55

    Communication Module 56

    Commissioning Program 57

    RS-422/485 Repeater 58

    RS-232 to RS-422/485 Converter 59

    INVENTOR Eudemon 2009 PC SUIT 60-61

    Piping Design Program 62-63

    Energy Recovery Ventilation 64-66

    Connection Branches 67

    index

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    ) Significantly improved EER/COPSignificantly greater efficiency is realized by the use of DC Inverter

    Hermetic Scroll Compressors with high-pressure chamber

    design, improved DC inverter driving technology and large heat

    exchanger.

    EER is the efficiency rate= cooling capacity (kW) cooling power input (kW)

    COP is the coefficient of performance = heating capacity (kW) heating power input.

    EER/COP values are based on INVENTOR laboratory testing method

    The data refers to a 8HP outdoor unit

    2.5

    3.0

    3.5

    4.0

    3.2

    4.07

    2.5

    3.0

    3.5

    3.7

    4.37

    4.0

    HIGHER EFFICIENCY

    Heat Exchanger

    Fan Motor

    Compressor

    ) High efficiency compressorHigh pressure chamber design

    Whats high pressure chamber?The compressed gas that is discharged from the fix scroll, fulfills the whole hermetic chamber of the compressor.

    Then, when the whole compressor shell has high temperature and there is high pressure inside the compressor, the gas goesout from the exhaust.

    Whats the Benefit of High Pressure Chamber?Direct suction in high pressure chamber compressor. No loss from overheat suction. Increased compressor efficiency

    up to 3-5%.

    HighPressure

    FixedScroll

    OrbitingScroll

    IntermediatePressure

    LowPressure

    IntermediatePressureChamber

    Motor inhigh Pressure

    Suction

    Discharge

    New DC motor(concentrated winding)raises the low frequency

    performance

    HP chamberstructure canraise the highand middlefrequency

    performance

    27%increase of EER

    18%increase of COP

    Formermodel

    3%

    7%

    Former model INV

    Former model

    Airflowvolume

    Airflowvolum

    e

    ) DC Fan motorCompared with the former model, airflow volume is increased 3% with the same single fan and 7% with the new

    dual fan, but the power consumption is decreased by 5% with the DC inverter motor.

    8HP/10HP Models

    12HP/14HP Models

    ) Heat ExchangerThe bigger condenser increases

    the heat-exchange area, improving

    the efficiency.

    Former model:

    2098x38.1x1156

    INV:

    2248x38.1x1190

    INV

    Compared with the normal fin,the heat exchange efficiency of the

    louver is increased by 5%.

    Former model:

    Normal flat fin

    INV:

    Louver fin withgolden coated

    Special thickened inner groovecopper tube enhances heat

    exchanging performance.

    Comparing with normal compressor, the DC InverterScroll compressor can save up to 40% of energy

    consumption in a year.

    Improved DC inverter motor

    Low frequency performance is highly raised thanks to the concentrated winding.

    With stepless power regulating technology, the DC

    inverter compressor achieves stepless output regulation

    between 20Hz-120Hz

    0 20

    Compressorefficiency

    Distributed winding Concentrated winding

    Rotating speed (/rps)

    7%

    INVFormermodel

    INV

    Formermodel

    INV

    Formermodel

    INV

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    ) Quiet OperationQuiet operation during night time

    The Intelligent adjustment of the outdoorfan control can minimize the operation

    noise during night time.

    It can be reduced up to 8dB(A).

    So the operating noise at night is lower,at 50dB(A).

    Low noise design

    OUTDOOR UNIT

    HP chamber compressor has lower exhaust

    pressure fluctuation, so the noise is lower.

    INDOOR UNIT

    Low noise indoor unit

    BETTER COMFORT

    ) ComfortablePrecise temperature control

    The EXV (Electronic Expansion Valve) of each

    Indoor unit responds to the loading changes of

    indoor environment, so it continually adjusts the

    flow rate of refrigerant.

    Meanwhile, the outdoor unit with DC inverter

    compressor provides the capacity with certain

    amount of refrigerant exactly according to the totaldemands of the indoor units.

    With this Variable Refrigerant Flow (VRF) technol-

    ogy, we can quickly get a nearly constant room

    temperature. The typical temperature fluctuationthat occurs with a conventional ON/OFF control

    system is eliminated.

    Intelligent defrost technology

    Traditional defrost program

    Simply executes defrosting according to acertain time.

    The defrost function may still start even if there

    is no such (defrosting) demand.

    Intelligent defrost program

    Humanized technology which considers the maxi-

    mization of energy saving.

    Defrosting program that is designed under the

    consideration of heating efficiency and operation

    reliability.

    Precise defrosting timing, which is intelligent

    indeed.

    Its an optimized defrosting program, which will

    be performed only when the systems pressure

    is too low. This can obviously lengthen the time

    gap between two defrost operations and reduce

    the times of defrosting.

    Heating capacity loss has been decreased by

    75% with highly comfortable heating operation.

    The optimized design of the condensing fan blade reducesthe air flow turbulence among blades. So, the noise is lower.

    58dB(A) 50dB(A)

    Average2dB(A) down

    Capacity Operatingsound

    Heat load Capacity Operatingsound

    Optimized

    Original design New design withhigher performance&lower noise4dB(A) less!

    37dB(A)Office

    Duct Type with High ESP

    37dB(A)Hotel

    Slim Duct Type

    28dB(A)Bedroom

    Wall Mounted Type

    37dB(A)Reception

    Four-way Cassete Type

    Quietcompressor

    Individual control

    The set temperature of each room may vary by the individual thermostat control of each indoor unit.

    Cooler

    Uncomfortable

    Comfortable

    LessCool

    Uncomfortable

    Temperaturefluctuation

    oftheroom

    Non VRF INV

    HeatingCapacity

    HeatingCapacity

    Heating

    Heating

    De fr ost ing De fr ost ing

    HeatLoss

    10mins 50mins 10mins 10mins50mins

    Time

    Defrosting

    Time

    Defrosting starts if the unit detects frost Defrosting stops

    after completion

    OFF200C

    240C 270C220C

    260C

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    ) Modular operatingThe operating priority sequence of the outdoor unit

    modules will be changed without restart when the

    system accumulatively operates for 12 hours. This

    can maximize the service life of the system.

    HIGHER RELIABILITY

    ) PCB protection designWith unique high efficiency radiating air-dust

    design, the outdoor electric box is designedas water-proof, dust-proof, damp-proof and

    well ventilated. This can ensure the required

    condition for the electric elements even in tropi-

    cal conditions. Also, it improves the systemsreliability and service life.

    Emergency operation

    Each module is an independent sub-system. The whole

    system wont fail down even if partial malfunction occurs.

    If a malfunction occurs at any module, there can be performedan emergency operation. This can simply be achieved