Airside Systems

Hitachi offers airside solutions for buildings where air treatment and purification is required or chiller-conditioned air needs to be distributed.

 

 

What is it
Fan coils use a fan to blow air over integrated water coils and can be used for cooling and heating.
Types
Floor/Ceiling Convertible
Ceiling Conceal
Cassette
Modular System
No
Functionalities
Cooling and Heating
Precise indoor climate control for individual rooms.
What is it
Air handling units can be configured for improving indoor air quality through air treatment and purification.
Types
Normally connected to ductwork.
Modular System
Yes
Functionalities
Cooling and Heating
Enhanced air quality, humidity & temperature control.
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Improve indoor air quality and distribution

Hitachi airside solutions include modular air handling units that can be configured for different indoor air quality requirements, plus a range of efficient fan coils to quickly heat or cool spaces of different sizes.

Fan coils use a fan to blow air over integrated water coils which are connected to a chiller, and can be used for cooling and heating (with a compatible Chiller that supports heating operation). Hitachi fan coil units come in a variety of sizes and formats including cassette, ducted, ceiling suspended and wall mounted

Air Handling Units come in a wide variety of sizes with different modules to enable air treatment and purification. They are normally connected to ductwork to distribute the treated air around a building.
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Choose from up to 3 fan coil unit types

Accommodate large open spaces and smaller rooms with a single range of fan coils:

Floor/Ceiling Convertible units can be mounted on the floor or in the corner of a ceiling, with a choice of frontal or bottom air return vent. Effective in both small and large spaces, they are available with or without casing so they can be put in full view (with casing) or integrated into a false ceiling or cupboard (without casing).

Ceiling Concealed units for integration into ceiling plenums. Suitable for a wide range of room types, from individual meeting rooms up to very large open spaces.

4-way Cassette units for mounting in a ceiling at the centre of a room – suitable for small and medium open-plan spaces.
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High-efficiency design

Wide range of individual unit cooling capacities from under 2 kW to almost 13 kW, and heating capacity up to 20 kW. Heat-exchanger constructed using, seamless copper tube, aluminum heat dissipation fin and crossed heat dissipation tube.
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Choice of 2-pipe or 4-pipe fan coil models

2-pipe systems are cost-efficient solutions to offer cooling in Summer and heating in Winter with a combination of a Hitachi reversible Chiller plus a number of 2-pipe fan coil units. 4-pipe systems are required to offer simultaneous cooling and heating in mid-season operation in warm climates and/or in big, well isolated buildings, where some rooms may request cooling while others may require heating at the same time.

A Hitachi chiller plus a boiler, or a number of Hitachi reversible chillers in combination with 4-pipe fan coil units is recommended in such cases.
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Modular AHU for enhanced air quality, humidity and temperature control

The MBD/MFD Series modular AHUs offer a range of air flow sizes up to 30,000 m3/h. A patented double skin prevents cold or heat leakage, isolating the internal and external metal casings by fixing the internal casing directly to a 25mm thick polyurethane foam layer (30/50mm also available).

Every module has a sub pressure access door which opens outwards and a positive access door which opens inwards, so there is no cold bridge and air leakage of positive pressure and sub pressure sections.

More than 10 different types of module are available:

Fan module

Fan module

Fan module with anti vibration cushions to reduce noise and a choice of 4 fan types; Centrifugal Forward, Centrifugal Backward and Plug fans. These can be dynamically balanced using our engineering software selection tool.

Mixing Box module

Mixing Box module

Mixing Box module to combine fresh air and return air. Dampers are available as an option to adjust the fresh air and return air blend.

Air Filter module

Air Filter module

Air Filter module which uses a frame and access door for easy filter replacement. Filters can be panel or bag type. Two main types are supported - HEPA and active carbon. A self-cleaning HEPA filter is also available for high-dust environments, where a differential pressure controller transmits a signal to release the compressed air; to expel the dust in the filter cartridge when it is full.

Cooling Coil Section/ Heating module

Cooling Coil Section/ Heating module

Cooling Coil Section/ Heating module using cooling or heating coils and supporting a wide range of capacities up to approx. 50kW.

Spraying module

Spraying module

Spraying module which offers up to 3 rows of spraying to increase or decrease enthalpy, humidity or temperature.

Humidification module

Humidification module

Humidification module can offer isothermal humidification (by generating steam) or iso-enthalph wetting through spraying water at high pressure.

Noise Elimination module

Noise Elimination module

Noise Elimination module which uses damp-proof extra-fine glass wool. It is extremely effective in eliminating medium and high frequency noise and is able to reduce noise levels by up to 31dB at 1000Hz frequency using 2 modules or 22dB using a single module.

Other modules

Other modules

Other modules available include: Heat Reclaim module for heat recovery, Electric Heating module for electric-source heating of the air, Electronic Purification module with high voltage electrostatic dust removal and photocatalytic disinfection technology, Ultraviolet Radiation Sterilization module, Ozone Generating module and Rotary Wheel Dehumidification module.

Footnotes

1. Refers to Certified Sound Pressure of Floor/Ceiling convertible model RPFCW 542 running on fan speed 1. Sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100m3 room and a reverberation time of 0.5 sec.

See which Airside System matches your needs

Airside Systems for Commercial Spaces

With over 80 years of experience, we are confident that our range of cooling and heating solutions provides households and businesses with the leading climate control technology to create and maintain the perfect indoor environment. Meeting the evolving requirements of our clients means that we are constantly innovating our systems, resulting in a collection of elegant and efficient options that are designed to adapt to you and the spaces that they inhabit. We cater for all types of projects and offer an extensive range of solutions so that you can find the system right for the job.

To see our ranges of residential and commercial solutions, click here, and if you are interested in receiving more information from a professional installer, find your nearest one using our Partner Locator.