Monozone/Multizone (QH8,NH7A,NH6A,NH5,QH5) Summit (WX8)(FX8)(DH7A)(FH6)(YH6)(YH5A) Bigflow (G4,GH4) Technical Catalogue

28 

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Summit (WX8)(FX8)(DH7A)(FH6)(YH6)(YH5A)

Bigflow (G4,GH4)

Technical Catalogue

Monozone/Multizone Outdoor Unit

RAC RAM

Monozone/Mutizone Indoor Unit

RAK RAF

RAI RAD

Summit and Bigflow

RAS RAF RAD

(2)

1.1

FEATURES AND BENEFITS OF MONOZONE (RAC) & MULTIZONE (RAM) OUTDOOR UNITS

„

Monozone/Multizone All DC PAM Inverter Multi

Air Conditioners with Twin Rotary and Scroll

Compressors

HITACHI proudly introduces the new line up of Monozone/Multizone series in order to respond to the request of air conditioning markets, for small and medium capacity units.

A new one-room type “MONOZONE” is added to the “MULTIZONE” series in which up four indoor units can be connected to one outdoor unit. Thus, small offices, hotels, shops or houses can be air-conditioned properly by using combinations of the one-room type to four-room types of indoor and outdoor units. What’s more, the on-board PAM provides high power and performance for greater energy efficiency. Creating the optimum, comfortable air-conditioned environment is Hitachi’s specialty.

ƒ New CutOut design outlook for premium class MULTI indoor units WALL type 2.5kW RAK-25QH8, 3.5kW RAK-35QH8 and 5kW RAK-50QH8

ƒ New CutOut design outlook for premium class MULTI indoor units FLOOR type 2.5kW RAF-25QH8, 3.5kW RAF-35QH8 and 5kW RAF-50QH8.

ƒ New control system incorporating

➀ 4 speed FAN mode selection remote control ➁ Connectable to H-LINK using optional adaptor ➂ Connectable to optional Weekly TIMER

➃ Connectable to optional WIRED remote control (except for duct type indoor)

ƒ Maximum Total Combination kilowatt of 150% ƒ HITACHI produces eco-friendly room air conditioners

by using a new refrigerant, HFC (R410A), which does not destroy the ozone layer, and is developing technologies for saving energy and reducing power consumption.

„

Various Indoor units and combinations

The new line-up of new Monozone/Multizone series indoor units has been extended up to 4 indoor units in 18 types to find various building requirements.

MULTI Combinations Nominal Kilowatt (kW) Indoor Unit Type 1.8 2.5 3.5 5.0 6.05 7.0 RAK - QH8 O O O - - RAK - NH6A O O O O - - RAK - NH5A - - - - O - RAF - QH8 - O O O - - RAF - NH5 - O O O - - RAD - NH7A O O O O - - RAI - NH5A - O O O - - O: AVAILABLE MONO Combinations Nominal Kilowatt (kW) Indoor Unit Type 1.8 2.5 3.5 5.0 6.05- 7.0 RAK - NH6A - O O O - - RAK – NH5A - - - - O - RAF - NH5 - O O O - - RAD - NH7A - O O O - - RAI - NH5A - O O O - - Outdoor Unit RAC – NH5 - O O O O - O: AVAILABLE

„

Minimum and maximum combination of Outdoor and Indoor Units

Indoor Unit Outdoor Unit Model Combination Minimum

Kilowatt (kW) Maximum Combination Kilowatt (kW) Minimum Combination of Indoor Unit Maximum Combination of Indoor Unit Minimum Individual Operation Kilowatt (kW) RAM-40QH5 3.6 6.0 2 2 1.8 RAM-55QH5 3.6 7.5 2 2 1.8 RAM-65QH5 3.6 8.8 2 3 1.8 RAM-72QH5 3.6 11.0 2 4 1.8 RAM-80QH5 3.6 12.0 2 4 1.8 RAM-90QH5 3.6 15.5 2 5 1.8 RAM-130QH5 7.2 17.6 4 6 1.8

1) In case that RAM-40/55/65/72/80/90QH5 is used, the minimum quantity of indoor unit to be connected shall be 2 2) In case that RAM-130QH5 is used, the minimum quantity of indoor units to be connected shall be 4.

(3)

„

High economical efficiency operation

HITACHI uses the high technology to achieve the high operation efficiency. The applications of the following technologies provide HITACHI to achieve results like the great power saving due to heat recovery system.

These technologies are: „

All PAM Inverter

Inverter driven systems have a big performance advantage over constant speed systems. The variable compressor can make a very fast start-up and reach the setting temperature rapidly, then reduce the rotation speed to achieve energy savings of about 30% with no loss of comfort. Moreover, only Hitachi’s DC driven fans and compressors deliver about 10% better performance than AC inverters. HITACHI is the world’s pioneer of DC inverter systems and PAM in room air conditioners.

„

Inverter Control

Hitachi’s PAM control system is able to keep the current pulse waveform to avoid distortion. It enhances the power efficiency. The cutting edge device is employed in HITACHI MONOZONE/MULTIZONE for your comfort and energy saving for our environment.

Rapid start up The variable speed compressor (inverter) enables the system to rapidly reach the desired room temperuature setting.

Once the desired room themperature has been achieved, the compressor rotation speed is reduced, saving up to 30% in energy usage (when compared to conventional systems) without compromising comfort levels

„

High performance, heating at –15°C

H

ITACHI’s PAM inverter system achieves the effective utilization of power input and minimizes loss less than 1. You can enjoy high COP, top class in industry. Especially heating performance is improved and you can enjoy heating comfort even at -15°C degree ambient temperature

„

Auto-Restart

If auto-restart mode was selected at the ON/OFF switch, the unit automatically resumes operation in the mode that was in use beforehand.

* When timer is set, Auto Restart feature to previous mode is not available

„

Auto Changeover (for RAC-25/35/50/65NH5)

The built-in microcomputer continuously selects the best operating mode automatically to provide maximum comfort, based on the set temperature and measurements taken every 10 minutes by a sensor.

T e m perat ure Non Inverter C o mpr e ss or (RPM) Time Inverter Non Inverter Inverter Superior Performance DC Inverter Motor AC Inverter Motor 10% Gain Mot o r Eff ici enc y (%) Motor RPM

(4)

„

Digital DC scroll compressor (for RAM-80QH5)

The motor uses digital control to maximize PAM control performance

ƒ Loss during high-speed revolution is reduced, thanks to digital control of the motor.

ƒ Three balancers mounted on the crankshaft lessen shaft run out during high-speed revolution.

ƒ Efficient operation with drastically reduced refrigerant leakage is ensured by the automatic compression system, in which that tip of the slewing scroll is kept in absolute contact with the fixed scroll, in addition to special processing of the scroll surface.

„

Twin rotary compressor (for

RAM-40/55/65/72/90/130QH5 and

RAC-25/35/50/65NH5)

Hitachi’s new twin rotary compressor has less vibration and higher efficiency than conventional rotary

compressors

ƒ Two rotating cylinders ensure well-balanced rotations unlike the conventional single rotary type, thus vibration noise is greatly reduced.

ƒ The compressor’s operation is improved by moving two independent cylinders efficiently

Comparison of Vibration

„

Use of the HFC new R410A Refrigerant

HITACHI developed and introduced all models to meet the global needs to help protect the Earth’s environment by using non-ozone depleting refrigerant, R410A as Hitachi’s standard series.

„

Easy installation (for RAM-90QH5)

The 5-room model covers up to 75m length with vertical interval of up to 20m.

„

Easy servicing

Self-diagnosis

ƒ Errors are easily identified by the LED blinking patterns of the indoor and outdoor units.

New Twin Rotary Conventional Single

(5)

1.2

FEATURES AND BENEFITS OF MONOZONE/MULTIZONE INDOOR UNITS

1.2.1 RAK - Wall Type

„

25QH8 (B), 35QH8 (B),

RAK-50QH8(B)

„

25QH8 (W), 35QH8 (W),

RAK-50QH8(W)

A new CutOut design outlook wall mounted indoor units is introduced which optimizes technology and just like its name suggests has a more stylish Cut Out panel design. The new Hitachi premium series deliver a high performance and revolutionary design with stylish white silver and beige chocolate. It is equipped with superb technology that blends well with any room interior of your choice.

„

RAK-18NH6A, RAK-25NH6A, RAK-35NH6A,

RAK-50NH6A

„

RAK-65NH5A

„

Powerful

Newly developed super big flap delivers air quickly to every corner of the room, and the powerful, sweeping airflow eliminated dead zones and improves the cooling

and heating effect.

„

Quiet Operation

Conventional blade fan

New Conical blade fan The trapezoidal blades

cut the air diagonally to minimize air resistance, and conical blade fan ensures a high airflow.

The fan diameter has been increased from the conventional 90 mm to 100mm, so low noise yet higher airflow is produced with slow rotation

„

Efficient

.

Lambda-shaped heat exchanger with advanced design for wide suction area and a high performance adjusts the room temperature quickly, achieving COP. The flat panel design grill and larger top suction area also increase the efficiency of heat exchange with the concentrated opening area, to improve the efficiency of air intake.

(6)

„

Nano Stainless Pre-Filter (RAK-QH8)

Odors Odors BacteriaBacteria Odors Odors BacteriaBacteria

Conventional filter

Before cleaning After cleaning

Dirt still clings to the filter Nano Stainless Filter

Before cleaning After cleaning

Dirt totally removed. Looking brand new.

„

Washable Blue Nano Titanium Filter

Nano Titanium, a nanoparticle antimicrobial agent. Titanium Oxide (TiO2) has been used as photocatalyst, and is a technology for deodorization and anti-bacterial measures, which has been recently put to practical use. The catalyst has been reduced to the “nano” level using Japanese original technology, to produce a no-light catalyst, thereby improving its effect. This cutting-edge Nano Titanium technology, which Hitachi is the first company to install for home appliances, works on the scale of the nanometer (1/1,000,000mm) to catch the tiniest bacteria and odor-causing molecules. Hitachi will optimize and apply this state-of-the-art technology to its main products.

„

Washable Anti Bacteria Filter (RAK-65NH5A)

Static electricity and carbon absorb micro dust, pollen particles and odors, and the air purifying filter can be washed and re-used up to 20 times.

Washable and Anti bacterial filter

Tobacco House mites

Dust Pollen

Breathing structure. Micro-level dust is absorbed by

static electricity

Reusable after washing

„

Wide Flow Anti-Bacterial Tangential Fan

The conical blade fan with less air resistance and bigger tangential fan draws a larger volume of air flow to distribute the cool air evenly and quietly.

It is also anti-bacterial treated to prevent bacterial and mold growth, ensuring only clean air is supplied for healthy living.

„

Convenient and Dynamic Extended Air Flow

(RAK-QH8)

With dynamic extended airflow, the airflow could reach further to the corners of the room. Your room can be efficiently warmed or cooled with conveniently simple push of button on the remote control.

(7)

1.2.2 RAF - FLOOR TYPE

„

RAF-25QH8 (B), RAF-35QH8 (B) & RAF-50QH8

(B)

„

RAF-25QH8 (W), RAF-35QH8 (W) & RAF-50QH8

(W)

Floor type comes with new stylish design, high efficiency, noise-control performance and maintainability. The new Hitachi premium series deliver a high performance and revolutionary design with stylish white silver and beige chocolate. It is equipped with superb technology that blends well with any room interior of your choice.

„

Higher performance

A lambda shaped design provides a larger and wider area for heat echangef thus ensuring high performance.

Current model Previous model

„

Convenient and Dynamic Extended Air Flow

(RAF-QH8)

With dynamic extended airflow, the airflow could reach further to the corners of the room. Your room can be efficiently warmed or cooled with conveniently simple push of button on the remote control.

„

Comfortable cooling and heating

Air Flow Control System (lower blowing type)

During heating mode, the warm air is directed to stay well controlled at floor level. Whereas during the cooling mode, cool air is distributed to the whole room to prevent direct cold blast onto the person body.

(8)

Comparison at heating mode Side view

Top view at 30cm height from floor level.

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC] Top/Bottom Side Air Flow Top/Bottom Side Air Flow Top/Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC]

Bottom Side Air Flow Bottom Side Air Flow Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC] Top/Bottom Side Air Flow Top/Bottom Side Air Flow Top/Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] Bottom Side Air Flow

Room Depth Distance Room Depth Distance

ºC

Bottom Side Air Flow

ºC

Bottom Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 23ºC] [Average Room Temperature: at 20ºC]

(9)

Comparison at cooling mode Side view

Top view at 60cm height from floor level.

Room Depth Distance

[Average Room Temperature: at 30ºC] Top Side Air Flow

ºC

[Average Room Temperature: at 29ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 27ºC] Top Side Air Flow

Room Depth Distance

ºC

Bottom Side Air Flow (Up Ward) Room Depth Distance

ºC

Room Depth Distance Bottom Side Air Flow

[Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC]

Room Depth Distance Bottom Side Air Flow

ºC

[Average Room Temperature: at 30ºC]

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC] Bottom Side Air Flow (Up Ward) Bottom Side Air Flow (Up Ward)

Room Depth Distance Room Depth Distance Room Depth Distance

ºC

ºC ºC ºC

[Average Room Temperature: at 30ºC] Top Side Air Flow

Room Depth Distance

ºC ºC

[Average Room Temperature: at 29ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 27ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC]

Room Depth Distance

Bottom Side Air Flow Bottom Side Air Flow Bottom Side Air Flow

[Average Room Temperature: at 27ºC]

ºC ºC ºC

Room Depth Distance Room Depth Distance

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC]

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC

ºC

Bottom Side Air Flow (Up ward) Bottom Side Air Flow (Up ward) Bottom Side Air Flow (Up ward)

(10)

Top view at 120cm height from floor level.

„

Nano Titanium Filter (RAF-FX8)

Nano Titanium, a nanoparticle antimicrobial agent. Titanium Oxide (TiO2) has been used as photocatalyst, and is a technology for deodorization and anti-bacterial measures, which has been recently put to practical use. The catalyst has been reduced to the “nano” level using Japanese original technology, to produce a no-light catalyst, thereby improving its effect. This cutting-edge Nano Titanium technology, which Hitachi is the first company to install for home appliances, works on the scale of the nanometer (1/1,000,000mm) to catch the tiniest bacteria and odor-causing molecules. Hitachi will optimize and apply this state-of-the-art technology to its main products.

[Average Room Temperature: at 30ºC]

Room Depth Distance

ºC

Top Side Air Flow

Room Depth Distance Top Side Air Flow

[Average Room Temperature: at 30ºC]

[Average Room Temperature: at 29ºC]

[Average Room Temperature: at 29ºC]

ºC

Bottom Side Air Flow Bottom Side Air Flow

ºC ºC

[Average Room Temperature: at 27ºC]

[Average Room Temperature: at 27ºC] Top Side Air Flow

Bottom Side Air Flow Room Depth Distance

Room Depth Distance Room Depth Distance

ºC ºC

[Average Room Temperature: at 27ºC]

ºC ºC

[Average Room Temperature: at 29ºC]

Bottom Side Air Flow (Up Ward) Bottom Side Air Flow (Up Ward)

Room Depth Distance Room Depth Distance

[Average Room Temperature: at 30ºC] Bottom Side Air Flow (Up Ward)

ºC

Room Depth Distance

(11)

„

RAF-25NH5, RAF-35NH5, RAF-50NH5

Floor type comes with improved efficiency, noise-control performance and maintainability. In addition to the streamlined style or symmetric rounded design, the upper and lower air outlets enables air blow in two directions to reach every corner of the room for comfortable warmth.

„

Comfortable heating

The airflow from upper and lower outlets heats the whole room evenly, even underneath your feet. The wider flap envelope you with comfortable air

Large and gentle air flow is generated b the larger upper blades, achieving efficient air-conditioning.

„

High performance

Current fan New fan The larger blade fan

than normal rotates sufficient airflow slowly, thus achieving high efficiency and low noise

„

Easy Cleaning

You can remove pre-filter easily for washing or you can clean directly by vacuum cleaner. The filter catch 3 times more dust due to its wave shape, so you do not have to clean so often.

New long life pre-filter

The dust collecting

area is almost three

times larger than that

of conventional one.

A washable air purifying filter (option) can be installed Pre-filter can be removed easily Open

(12)

1.2.3 RAI - Four Way Cassette Type

„

RAI-25NH5A, RAI-35NH5A, RAI-50NH5A

„

Silent

Noise level is just 25dB (Sleep mode) thanks to the 3D-twisted wing design of the compact turbo-fan.

.

„

Automatic Swing Louver

Optionally, this unit is equipped with an automatic swing louver to ensure even distribution of conditioned air to the entire room.

„

4 -Way Airflow

It can be selected among 2-way, 3-way or 4-way operation.

„

Fits into a 600mm x 600mm ceiling module

Thanks to compact design, it neatly fits inside a standard module and requires less installation work

„

One-touch panel

The panel can be swung open up to 90° with just one push so that the filter can be removed for cleaning.

Grill can be removed for cleaning

„

Built-in Drain Pump

The air conditioner is equipped with an internal drain pump to remove accumulated condensend water from drain pan even while it is operating. A float switch monitors the water level and automatically activates the pump as necessary

„

Elegant Design

The gently contoured standard air panel is less than 4 cm. It is tastefully designed to blend with any interior while delivering a maximum flow of air. The 32 cm profile of the hidden ceiling unit is low enough to allow unfettered installation in almost any building.

(13)

1.2.4 RAD - DUCT TYPE

„

RAD-18NH7A, RAD-25NH7A, RAD-35NH7A,

RAD-50NH7A

„

Quiet Operation

The free duct enables the air inlet and outlet layout system to be freely chosen depending on the building structure and room width, thus keeping your room looking beautiful.

Unlike conventional units, the noise level has been reduced to an exceptionally low 30dB-A (1.0HP unit, Low position). Ideal wherever quiet operation is important.

„

Neatly installable in any room

Duct length is extendable for up to 4m. High-pressure switch setting delivers sufficient air conditioning even by duct installation.

Variation in installation

„

Built-in drain pump

This air conditioner is equipped with an internal drain pump to remove accumulated condensed water from the drain pan even while it is operating. A float switch monitors the water level and automatically activates the pump as necessary.

„

Removable Pre-filter and selectable air inlet

Semi-duct type

Non-duct type

Air inlet is selectable

(14)

„

Static pressure & Air flow

RAD-18NH7A / RAD-25NH7A COOLING 0 10 20 30 40 50 4 5 6 7 8 9 10 AIR VOLUME (m3/min) E X TER NAL   ST ATIC   P RESS URE   (

:Static Pressure OFF :Static Pressure ON M3 M0 Hi Me Lo HEATING 0 10 20 30 40 50 4 5 6 7 8 9 10 AIR VOLUME (m3/min)

E X T ERN AL   STA TI C  PR ES SU RE   ( M3 M0

M3:In case the duct is 4m long M0:For single indoor unit

Hi Me Lo

:Static Pressure OFF :Static Pressure ON RAD-35NH7A / RAD-50NH7A COOLING 0 10 20 30 40 50 4 5 6 7 8 9 10 AIR VOLUME (m3/min)

E X T ERN AL   STA TI C   PR ES SUR E   (

:Static Pressure OFF :Static Pressure ON M3 M0 Hi Me Lo HEATING 0 10 20 30 40 50 4 5 6 7 8 9 10 AIR VOLUME (m3/min)

EXT ERNA L   STA TIC   P RES SURE   (

M3:In case the duct is 4m long M0:For single indoor unit

M3

M0 Hi

Me Lo

:Static Pressure OFF :Static Pressure ON EXTER N A L S T A T IC P R ESS UR E (Pa)

Static pressure OFF Static pressure ON

HEATING

Lo

Me Hi M3

M0

M3: In case duct is 4m long M0: For non duct type

Air volume (m3/min) 50 40 30 20 10 0 4 5 6 7 8 9 10 COOLING EXTERNAL S T ATIC P R ESS URE

Static pressure OFF Static pressure ON Lo Me Hi M3 M0 50 40 30 20 10 0 4 5 6 7 8 9 10

Air volume (m3/min)

COOLING Lo Me Hi M3 M0 EXTERNAL S T A T CI P R ESS UR E (Pa)

Static pressure OFF Static pressure ON 50 40 30 20 10 0 4 5 6 7 8 9 10

Air volume (m3/min)

HEATING EXTER N A L S T A T IC P R ESS U R E (Pa) M3 Lo Me Hi M0

Static pressure OFF Static pressure ON 50 40 30 20 10 0 4 5 6 7 8 9 10

Air volume (m3/min) M3: In case duct is 4m long

(15)

1.2.5 System Control Features

Remote controller H-Link Adaptor Model

Standard Optional (either one) Optional

RAK-QH8 RAK-NH6A RAI-NH5A RAF-QH8 New wireless New wired CS-NET etc. H-LINK LINE RAC OR OR

WEEKLY TIMER WIRED REMOCON WIRELESS REMOCON OR OR H-LINK ADAPTOR RAC H-LINK ADAPTOR RAD-NH7A New wired New wireless Weekly timer Yes

*Not applicable for RAF-NH5 „

4 fan speed control

4 fan speed control for flexible control of air flow. (High / Medium, Low / Sleep Low) with the new wireless and wired remote control.

„

New Weekly Timer (optional)

• Program can be set for one week

• Up to 5 different patterns can be set for each calendar day with each pattern having programmable starting time, ending time and temperature.

• Program can overlap to the next day • Simultaneous setting mode

• Possible to choose”weekly program” or “normal ”mode

• 4 fan tap: Auto/Hi/Me/Low/Silent

„

H-link connection(optional)

The optional H-link adaptor is available if connection of the RAC to the CS-NET via the H-link system is required

„

Distributor (optional)

The optional distributor is be used together with the Weekly Timer when there is a need to centralized the control of multiple indoor units using only a single Weekly Time remote control.

A single distributor could be connected further to 3 separate distributors so that up to 13 units of indoor could be controlled by a single weekly timer.

WEEKLY TIMER

DISTRIBUTOR#1

RAC#1 RAC#2 RAC#3

RAC#4

WEEKLY TIMER

DISTRIBUTOR#2 DISTRIBUTOR#3 DISTRIBUTOR#4

DISTRIBUTOR#1 RAC#1 RAC#4 RAC#3 RAC#2 RAC#5 RAC#6 RAC#7 RAC#8 RAC#9 RAC#5 RAC#6 RAC#6 RAC#6

(16)

1.3

BENEFITS AND FEATURES OF SPLIT MODELS

H

ITACHI prides itself on providing high quality, efficient and reliable air conditioning solutions across the globe. By investing in Research and Development, Hitachi has been able to remain at the forefront of the industry with most extensive range available in the market today.

As would be expected of an organization such as ours, quality and efficiency of our products is imperative and has the utmost importance. Installers and users alike can rest assured that these are not the only parameters by which Hitachi products can be judged. Ecological thinking stems from the very first stages of new product design and continues throughout production and onto installation procedures, equipment and operation, with priority being given to the use of environmentally friendly refrigerants such as R410A.

Hitachi offers an extensive range of Room Air Conditioning Units suitable for domestic and light commercial applications.

1.3.1 SUMMIT

RANGE

„

All PAM Inverter (RAC-50/60/70/80YH5A and

RAC-50WX8)

Inverter driven systems have a big performance advantage over constant speed systems. The variable compressor can make a very fast start-up and reach the setting temperature rapidly, then reduce the rotation speed to achieve energy savings of about 30% with no loss of comfort. Moreover, only Hitachi’s DC driven fans and compressors deliver about 10% better performance than AC inverters. HITACHI is the world’s pioneer of DC inverter systems and PAM in room air conditioners.

„

Inverter Control

Hitachi’s PAM control system is able to keep the current pulse waveform to avoid distortion. It enhances the power efficiency. The cutting edge device is employed in HITACHI SUMMIT for your comfort and energy saving for our environment.

Rapid start up The variable speed compressor (inverter) enables the system to rapidly reach the desired room temperuature setting.

Once the desired room themperature has been achieved, the compressor rotation speed is reduced, saving up to 30% in energy usage (when compared to conventional systems) without compromising comfort levels „

High performance, heating at –15°C

H

ITACHI’s PAM inverter system achieves the effective utilization of power input and minimizes loss less than 1. You can enjoy high COP, top class in industry. Especially heating performance is improved and you can enjoy heating comfort even at -15°C degree ambient temperature

„

Auto-Restart

If auto-restart mode was selected at the ON/OFF switch, the unit automatically resumes operation in the mode that was in use beforehand:

* When timer is set, Auto Restart feature to previous mode is not available

„

Auto Changeover

The built-in microcomputer continuously selects the best operating mode automatically to provide maximum comfort, based on the set temperature and measurements taken every 10 minutes by a sensor. Superior Performance DC Inverter Motor AC Inverter Motor 10% Gain Mo to r Ef ficie n c y (% ) Motor RPM Tem p e rat ure Non Inverter C o mpr e ss or (R PM) Time Inverter Non Inverter Inverter

(17)

1.3.1.1 Wall

Type

„

RAS-25WX8(W) or (B), RAS-35WX8(W) or (B),

RAS-50WX8(W) or (B)

A new CutOut design outlook wall mounted indoor units is introduced which optimizes technology and just like its name suggests has a more stylish Cut Out panel design. The new Hitachi premium series deliver a high performance and revolutionary design with stylish white silver and beige chocolate. It is equipped with superb technology that blends well with any room interior of your choice.

„

18FH6, 25FH6, 35FH6,

RAS-50FH6

„

RAS-60YH5A

„

RAS-70YH5A, RAS-80YH5A

„

Powerful

Newly developed super big flap delivers air quickly to every corner of the room, and the powerful, sweeping airflow eliminated dead zones and improves the cooling and heating effect.

„

Quiet Operation

Conventional blade fan

New Conical blade fan The trapezoidal blades

cut the air diagonally to minimize air resistance, and conical blade fan ensures a high airflow.

The fan diameter has been increased from the conventional 90 mm to 100mm, so low noise yet higher airflow is produced with slow rotation

„

Efficient

.

Lambda-shaped heat exchanger with advanced design for wide suction area and a high performance adjusts the room temperature quickly, achieving COP. The flat panel design grill and larger top suction area also increase the efficiency of heat exchange with the concentrated opening area, to improve the efficiency of air intake.

„

Digital DC scroll compressor (RAC-WX8

,RAC-FX8 , RAC-25/35YH5)

The motor uses digital control to maximize PAM control performance

ƒ Loss during high-speed revolution is reduced, thanks to digital control of the motor.

ƒ Three balancers mounted on the crankshaft lessen shaft run out during high-speed revolution.

ƒ Efficient operation with drastically reduced refrigerant leakage is ensured by the automatic compression system, in which that tip of the slewing scroll is kept in absolute contact with the fixed scroll, in addition to special processing of the scroll surface.

(18)

„

Twin rotary compressor (for

RAC-18/25/35/50YH6 , RAC-60/70/80YH5)

Hitachi’s new twin rotary compressor has less vibration and higher efficiency than conventional rotary

compressors

ƒ Two rotating cylinders ensure well-balanced rotations unlike the conventional single rotary type, thus vibration noise is greatly reduced.

ƒ The compressor’s operation is improved by moving two independent cylinders efficiently

Comparison of Vibration

„

Nano Stainless Pre-Filter (RAS-WX8)

Odors OdorsOdors BacteriaBacteria Odors BacteriaBacteria

Conventional filter

Before cleaning After cleaning

Dirt still clings to the filter

Nano Stainless Filter

Before cleaning After cleaning

Dirt totally removed. Looking brand new.

„

Washable Blue Nano Titanium Filter

(RAS-WX8)

Nano Titanium, a nanoparticle antimicrobial agent. Titanium Oxide (TiO2) has been used as photocatalyst, and is a technology for deodorization and anti-bacterial measures, which has been recently put to practical use. The catalyst has been reduced to the “nano” level using Japanese original technology, to produce a no-light catalyst, thereby improving its effect. This cutting-edge Nano Titanium technology, which Hitachi is the first company to install for home appliances, works on the scale of the nanometer (1/1,000,000mm) to catch the tiniest bacteria and odor-causing molecules. Hitachi will optimize and apply this state-of-the-art technology to its main products.

„

Washable Anti Bacterial Filter (RAS-FH5,FH6

and YH5A

Static electricity and carbon absorb micro dust, pollen particles and odors, and the air purifying filter can be washed and re-used up to 20 times.

Washable and Anti bacterial filter New Twin Rotary

Conventional Single Rotary

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Tobacco House mites

Dust Pollen

Breathing structure. Micro-level dust is absorbed by

static electricity

Reusable after washing

„

Wide Flow Anti-Bacterial Tangential Fan

The conical blade fan with less air resistance and bigger tangential fan draws a larger volume of air flow to distribute the cool air evenly and quietly.

It is also anti-bacterial treated to prevent bacterial and mold growth, ensuring only clean air is supplied for healthy living.

„

Convenient and Dynamic Extended Air Flow

[RAS-25WX8, RAS-35WX8, RAS-50WX8]

With dynamic extended airflow, the airflow could reach further to the corners of the room. Your room can be efficiently warmed or cooled with conveniently simple push of button on the remote control.

„

Self Cleaning Function [25WX8,

RAS-35WX8, RAS-50WX8]

The unit will activate DRY function for 30 minutes to protect the indoor exchanger from mold and bad odour.

„

Plasma Air Cleanliness [25WX8,

RAS-35WX8, RAS-50WX8]

Equipped with a plasma ion unit to capture the finest and microscopic dust and eliminate bacteria.

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1.3.1.2 Floor

Type

„

RAF-25FX8(B), RAF-35FX8(B), RAF-50FX8(B)

„

RAF-25FX8(W), RAF-35FX8(W), RAF-50FX8(W)

Floor type comes with new stylish design, high efficiency, noise-control performance and low maintainability.

The new Hitachi premium series deliver a high performance and revolutionary design with stylish white silver and beige chocolate. It is equipped with superb technology that blends well with any room interior of your choice.

„

Nano Stainless Pre-Filter (RAF-FX8 )

Odors OdorsOdors BacteriaBacteria Odors BacteriaBacteria

Conventional filter

Before cleaning After cleaning

Dirt still clings to the filter

Nano Stainless Filter

Before cleaning After cleaning

Dirt totally removed. Looking brand new.

„

Nano Titanium Filter (RAF-FX8)

Nano Titanium, a nanoparticle antimicrobial agent. Titanium Oxide (TiO2) has been used as photocatalyst, and is a technology for deodorization and anti-bacterial measures, which has been recently put to practical use. The catalyst has been reduced to the “nano” level using Japanese original technology, to produce a no-light catalyst, thereby improving its effect. This cutting-edge Nano Titanium technology, which Hitachi is the first company to install for home appliances, works on the scale of the nanometer (1/1,000,000mm) to catch the tiniest bacteria and odor-causing molecules. Hitachi will optimize and apply this state-of-the-art technology to its main products.

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„

Higher performance

A lambda shaped design provides a larger and wider area for heat echangef thus ensuring high performance.

Current model Previous model

„

Comfortable coolng and heating

Air Flow Control System (lower blowing type)

During heating mode, the warm air is directed to stay well controlled at floor level. Whereas during the cooling mode, cool air is distributed to the whole room to prevent direct cold blast onto the person body.

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Comparison at heating mode Side view

Top view at 30cm height from floor level.

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC] Top/Bottom Side Air Flow Top/Bottom Side Air Flow Top/Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC]

Bottom Side Air Flow Bottom Side Air Flow Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] [Average Room Temperature: at 20ºC] [Average Room Temperature: at 23ºC] Top/Bottom Side Air Flow Top/Bottom Side Air Flow Top/Bottom Side Air Flow

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC ºC

[Average Room Temperature: at 18ºC] Bottom Side Air Flow

Room Depth Distance Room Depth Distance

ºC

Bottom Side Air Flow

ºC

Bottom Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 23ºC] [Average Room Temperature: at 20ºC]

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Comparison at cooling mode Side view

Top view at 60cm height from floor level.

Room Depth Distance

[Average Room Temperature: at 30ºC] Top Side Air Flow

ºC

[Average Room Temperature: at 29ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 27ºC] Top Side Air Flow

Room Depth Distance

ºC

Bottom Side Air Flow (Up Ward) Room Depth Distance

ºC

Room Depth Distance Bottom Side Air Flow

[Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC]

Room Depth Distance Bottom Side Air Flow

ºC

[Average Room Temperature: at 30ºC]

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC] Bottom Side Air Flow (Up Ward) Bottom Side Air Flow (Up Ward)

Room Depth Distance Room Depth Distance Room Depth Distance

ºC

ºC ºC ºC

[Average Room Temperature: at 30ºC] Top Side Air Flow

Room Depth Distance

ºC ºC

[Average Room Temperature: at 29ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 27ºC] Top Side Air Flow

Room Depth Distance

ºC

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC]

Room Depth Distance

Bottom Side Air Flow Bottom Side Air Flow Bottom Side Air Flow

[Average Room Temperature: at 27ºC]

ºC ºC ºC

Room Depth Distance Room Depth Distance

[Average Room Temperature: at 30ºC] [Average Room Temperature: at 29ºC] [Average Room Temperature: at 27ºC]

Room Depth Distance Room Depth Distance Room Depth Distance

ºC ºC

ºC

Bottom Side Air Flow (Up ward) Bottom Side Air Flow (Up ward) Bottom Side Air Flow (Up ward)

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Top view at 120cm height from floor level.

„

Convenient and Dynamic Extended Air Flow

[RAF-25FX8(W) or (B), RAF-35FX8(W) or (B),

RAF-50FX8(W) or (B)]

With dynamic extended airflow, the airflow could reach further to the corners of the room. Your room can be efficiently warmed or cooled with conveniently simple push of button on the remote control.

„

Digital DC scroll compressor (for RAC-FX8)

The motor uses digital control to maximize PAM control performance

ƒ Loss during high-speed revolution is reduced, thanks to digital control of the motor.

ƒ Three balancers mounted on the crankshaft lessen shaft run out during high-speed revolution.

ƒ Efficient operation with drastically reduced refrigerant leakage is ensured by the automatic compression system, in which that tip of the slewing scroll is kept in absolute contact with the fixed scroll, in addition to special processing of the scroll surface.

[Average Room Temperature: at 30ºC]

Room Depth Distance

ºC

Top Side Air Flow

Room Depth Distance Top Side Air Flow

[Average Room Temperature: at 30ºC]

[Average Room Temperature: at 29ºC]

[Average Room Temperature: at 29ºC]

ºC

Bottom Side Air Flow Bottom Side Air Flow

ºC ºC

[Average Room Temperature: at 27ºC]

[Average Room Temperature: at 27ºC] Top Side Air Flow

Bottom Side Air Flow Room Depth Distance

Room Depth Distance Room Depth Distance

ºC ºC

[Average Room Temperature: at 27ºC]

ºC ºC

[Average Room Temperature: at 29ºC]

Bottom Side Air Flow (Up Ward) Bottom Side Air Flow (Up Ward)

Room Depth Distance Room Depth Distance

[Average Room Temperature: at 30ºC] Bottom Side Air Flow (Up Ward)

ºC

Room Depth Distance

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1.3.1.3

Duct Type Middle Static Pressure

„

RAD-50DH7A, RAD-60DH7A, RAD-70DH7A

„

Quiet Operation

The free duct enables the air inlet and outlet layout system to be freely chosen depending on the building structure and room width, thus keeping your room looking beautiful.

„

Neatly installable in any room

High-pressure switch setting delivers sufficient air conditioning even by duct installation.

Variation in installation

Removable Pre-filter and selectable air inletSemi-duct type

Non-duct type

Air inlet is selectable

Pre-filter is removable

„

Static pressure & Air flow

RAD-50DH7A / RAD-60DH7A EXTER NAL S T AT IC PRESS URE (Pa)

AIR VOLUME (m3/min)

RAD-70DH7A EX T E RN A L S T ATIC PRESS UR E (Pa)

AIR VOLUME (m3/min)

Normal Mode High Static Pressure Mode Low Static Pressure Mode

Normal Mode High Static Pressure Mode Low Static Pressure Mode

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„

Built-in drain pump

This air conditioner is equipped with an internal drain pump to remove accumulated condensed water from the drain pan even while it is operating. A float switch monitors the water level and automatically activates the pump as necessary.

„

Twin rotary compressor (for

RAC-50/60/70DH7)

Hitachi’s new twin rotary compressor has less vibration and higher efficiency than conventional rotary compressors

ƒ Two rotating cylinders ensure well-balanced rotations unlike the conventional single rotary type, thus vibration noise is greatly reduced.

ƒ The compressor’s operation is improved by moving two independent cylinders efficiently

Comparison of Vibration

New Twin Rotary Conventional Single

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1.3.2 System Control Features

Remote controller H-Link Adaptor Model

Standard Optional (either one) Optional

RAS-WX8 RAS-YH5A RAS-FH6 RAF-FX8 New wireless New wired CS-NET etc. H-LINK LINE RAC OR OR

WEEKLY TIMER WIRED REMOCON WIRELESS REMOCON OR OR H-LINK ADAPTOR RAC H-LINK ADAPTOR RAD-DH7A New wired New wireless Weekly timer Yes

*non applicable to RAS-FH5

„

4 fan speed control

4 fan speed control for flexible control of air flow. (High / Medium, Low / Sleep Low) with the new wireless and wired remote control.

„

New Weekly Timer (optional)

• Program can be set for one week

• Up to 5 different patterns can be set for each calendar day with each pattern having programmable starting time, ending time and temperature.

• Program can overlap to the next day • Simultaneous setting mode

• Possible to choose”weekly program” or “normal ”mode

• 4 fan tap: Auto/Hi/Me/Low/Silent „

H-link connection(optional)

The optional H-link adaptor is available if connection of the RAC to the CS-NET via the H-link system is required

„

Distributor (optional)

The optional distributor is be used together with the Weekly Timer when there is a need to centralized the control of multiple indoor units using only a single Weekly Time remote control.

A single distributor could be connected further to 3 separate distributors so that up to 13 units of indoor could be controlled by a single weekly timer.

WEEKLY TIMER

DISTRIBUTOR#1

RAC#1 RAC#2 RAC#3

RAC#4

WEEKLY TIMER DISTRIBUTOR#2 DISTRIBUTOR#3 DISTRIBUTOR#4

DISTRIBUTOR#1 RAC#1 RAC#4 RAC#3 RAC#2 RAC#5 RAC#6 RAC#7 RAC#8 RAC#9 RAC#13 RAC#10 RAC#11 RAC#12

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1.3.3 BIGFLOW

RANGE

„

Rotary compressor

Hitachi’s new rotary compressor has less vibration and higher efficiency than conventional rotary compressors. The Hitachi single split system offers a cost effective and efficient solution to climate control in one zone.

„

Auto-Restart

If auto-restart mode was selected at the ON/OFF switch, the unit automatically resumes operation in the mode that was in use beforehand.

* When timer is set, Auto Restart feature to previous mode is not available

„

Powerful

Newly developed super big flap delivers air quickly to every corner of the room, and the powerful, sweeping airflow eliminated dead zones and improves the cooling and heating effect.

„

G4, GH4 series – use of the HFC new R410A

Refrigerant

HITACHI developed and introduced all models to meet the global needs to help protect the Earth’s environment by using non-ozone depleting refrigerant, R410A as Hitachi’s standard series.

„

Efficient

Lambda-shaped heat exchanger with advanced design for wide suction area and a high performance adjusts the room temperature quickly, achieving COP. The gradation-design grill and larger top suction area also increase the efficiency of heat exchange with the concentrated opening area, to improve the efficiency of air intake.

Lambda-shaped heat exchanger with advanced design for wide suction area and a high performance adjusts the room temperature quickly, achieving COP. The flat panel design grill and larger top suction area also increase the efficiency of heat exchange with the concentrated opening area, to improve the efficiency of air intake.

„

Clean

Static electricity and carbon absorb micro dust, pollen particles and odors, and the air purifying filter can be washed and re-used up to 20 times.

Washable and Anti bacterial filter

Tobacco House mites

Dust Pollen

Breathing structure. Micro-level dust is absorbed by

static electricity

Reusable after washing

Figure

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