INDUSTRIAL DEHUMIDIFICATION

INDUSTRIAL DEHUMIDIFICATION
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INDUSTRIAL DEHUMIDIFICATION

Product catalog summary
Overview
Hitachi's industrial dehumidifiers are engineered for diverse applications such as food drying, precision machinery room dehumidification, and concrete drying. They employ a refrigeration cycle to cool and condense humid air, effectively removing moisture. Models are available with reheating and cooling options to maintain stable room temperatures.
Product Line-Up
The product range includes compact floor models with advanced control features via an optional multi-function wired controller, enabling multiple unit control, remote operation, and easy timer settings.
Main Features
Models like RK-NP08PVX and RK-NP2LVX offer high dehumidification capacity and energy efficiency through inverter control, allowing for optimal performance under varying conditions and rapid response to humidity changes.
Specifications & Dimensions
Dehumidifiers come in various models with different compressor outputs and capacities. Inverter-equipped models adjust compressor speed for enhanced performance and energy efficiency.
Optional Parts and Modifications
A variety of optional parts are available, including filter boxes and duct sets. Installation is simplified with pre-assembled components like the plenum chamber.
Energy Conservation
Inverter models offer significant energy savings, reducing annual power consumption by up to 20% compared to constant speed types.
Operation Modes
Units feature Auto, Reheat, and Cooling modes to adjust dehumidification capacity and maintain desired temperature and humidity levels. Heating and humidifying functions are not included.
Installation and Serviceability
Installation is straightforward with pre-assembled components, and serviceability is enhanced by easy access to parts like the drain pan and heat exchanger.
Demand Control and Power Management
The demand control feature manages compressor operating current to limit maximum power consumption, with settings from 100% to 40% of rated power. A wave mode minimizes humidity fluctuations while reducing power use. Setup requires distributor assistance.
Operating Temperature Range
The dehumidifiers operate across a wide temperature range, suitable for various applications, with specific conditions for reheating and cooling operations.
Control Panel Features
The control panel includes a multi-function wired controller, powerful dehumidification mode, full-dot LCD, and easy timer function. It displays power consumption for effective power management.
Power Saving Modes
Peak Save and Restrict Mode adjust dehumidification capacity and compressor speed to manage power consumption effectively.
Intermittent Operation Control
This feature alternates between dehumidification and thermo-off modes to save power, with cycle durations varying by power-saving level.
Multiple Unit Control
Up to 10 dehumidifiers can be controlled from a single panel, provided they are of the same type and series, following proper wiring guidelines.
Remote Control Function
An optional wired controller allows remote operation, including temperature settings and fault warnings.
Anticorrosive Coating
The indoor unit features a standard anticorrosive coating on the heat exchanger, with an option for a more effective cationic electro-deposition coating.
Specifications and Dimensions
Detailed specifications for small floor type dehumidifiers include dehumidification capacity, power consumption, and dimensions, along with diagrams for optional parts.
Specifications and Test Methods
Antibacterial Filters: Tested per JIS L 1902, showing effective antibacterial activity. Deodorant Air Filters: Effective against certain chemicals, with 50% dust collection efficiency.
Installation and Usage Guidelines
Control and Wiring: Use a cover for remote control and twisted-pair cables of 0.75mm2 or greater. Duct Connections: Includes a 200mm flexible duct, which is not self-supporting.
Optional Parts and Layout
Filter Options: Different filters cannot be installed simultaneously. Filter Box Dimensions: Requires 600mm service space on either side.
Performance and Maintenance
Pressure Loss: Initial pressure loss characteristics are provided. Maintenance: Filters should be cleaned with water and dried in sunlight.
Precautions
Air Volume and Dehumidification: Filters reduce air volume and capacity. Antibacterial Treatment: Confirmed effective by Boken Quality Evaluation Institute.
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Catalog excerpts

INDUSTRIAL DEHUMIDIFICATION-1

INDUSTRIAL DEHUMIDIFICATION REHEATING ONLY TYPE REHEATING AND COOLING TYPE Protect your environment, - where value is born. – Johnson Controӏs - Hitachi Air Conditioning ADDRESS New Pier Takeshiba South Tower 1-16-1, Kaigan Minato-ku, Tokyo 105-0022, JAPAN Tel: +81-3-6721-5567 www.jci-hitachi.com HITACHI. CERTIFIED QUALITY The specifications of this catalog may change without prior notice to allow Hitachi Cooling & Heating to incorporate the latest innovations for its customers. The information contained in this catalog is merely informative. Hitachi Cooling & Heating declines any responsibility in the broadest sense, for damage, direct or indirect, arising from the use and / or interpretation of the recommendations in this catalog. Find the products Hitachi Cooling & Heating with the best service and conditions at your Hitachi Distributor.

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INDUSTRIAL DEHUMIDIFICATION-2

Main Features Common Features Specifications & Dimensions Optional parts and modifications INDUSTRIAL DEHUMIDIFIERS

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INDUSTRIAL DEHUMIDIFICATION-3

OVERVIEW Hitachi's commercial/industrial dehumidifiers are valuable in various fields for the purpose of dehumidification and drying. Places where humidity tends to be high due to the presence of water and steam - Indoor pools and fitness clubs - Dehumidification and drying of bathing areas in public bathrooms and inns Dehumidification, drying, and storing : 04 At food processing plants, manufacturing facilities and logistics businesses - Drying and storing of fresh and processed food - Drying of food processing plants after cleaning with water At workshops and work facilities - Dehumidification...

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INDUSTRIAL DEHUMIDIFICATION-5

MAIN – FEATURES ENHANCED CONTROL FEATURES Small floor type (inverter-equipped) < Reheating only type > The optional multi-function wired controller supports various functions. * For the following functions, an optional multi-function wired controller is required. * If the optional caster wagon is used, mount the controller on the side of the wagon. Small floor type with small footprint. Enhanced control features by optional multi-function wired controller. Multiple unit control function Extensive product line-up Up to 10 dehumidifiers (small floor type) can be controlled at the same time. Model...

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INDUSTRIAL DEHUMIDIFICATION-6

MAIN – FEATURES REDUCED ENERGY CONSUMPTION (inverter-equipped) < Reheating only type > Inverter control allows the unit to be used under a wide range of dehumidification load conditions as well as reducing energy consumption. It also makes it possible to reach the set humidity level within a shorter time and to respond to a greater fluctuation of dehumidification load. Depending on the fluctuation of the dehumidification load, the compressor speed is controlled by the inverter to adjust the dehumidification capacity. Compared to the constant speed type, power consumption is reduced as the unit...

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INDUSTRIAL DEHUMIDIFICATION-7

MAIN – FEATURES Cooling Operation Floor type (inverter-equipped) < Reheating and cooling type > Model Inverter Inverter control allows the unit to be used under a wide range of dehumidification load conditions as well as reducing energy consumption. As it is a reheating and cooling type, it can prevent temperature increases in the room. Floor type (constant speed) Floor type (constant speed) Model Inverter (Outdoor unit) (Outdoor unit) *1. Plenum chamber is optional. Extensive product line-up Model Equivalent horsepower Cooling capacity Depending on the fluctuation of the dehumidification load,...

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INDUSTRIAL DEHUMIDIFICATION-8

COMMON – FEATURES Floor type Floor type (inverter-equipped) & Small floor type (inverter-equipped) (inverter-equipped) WIDE SELECTION OF OPTIONAL PARTS A wide selection of optional parts is supported, such as a filter box for the front suction, duct set for the rear suction, and high efficiency filter. (For details, refer to P38~P45.) The system performs demand control by detecting the operating current of the compressor. This feature helps suppress the maximum power by cutting the power consumption which exceeds the set power range. * Small floor type require the optional multi-function wired...

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INDUSTRIAL DEHUMIDIFICATION-9

COMMON – FEATURES Useful power saving features Floor type (inverter-equipped) & Small floor type (inverter-equipped) * The following three control functions cannot be enabled simultaneously. It takes a long time to reach the set humidity/temperature (reheating andcooling type). MULTI-FUNCTION OF CONTROL PANEL DEHUMIDIFICATION CAPACITY CONTROL The control panel supports the wired controller (PC-RKF). You can configure various features by simple operation. Two power-saving modes are available. * The small floor type requires the optional multi-function wired controller. Peak save mode Powerfuӏ...

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INDUSTRIAL DEHUMIDIFICATION-10

COMMON – FEATURES STANDARD ANTICORROSIVE COATING (INDOOR UNIT) Floor type (inverter-equipped) & Small floor type (inverter-equipped) MULTIPLE UNIT CONTROL Up to 10 dehumidifiers can be controlled at the same time from a single control panel. Following the wiring guideline below, wire the units correctly. Wiring guideӏine Remove the wiring connecting the control panels of units #1 through #9 and the terminal block (TB2). (Example for floor type) Heat exchanger (anticorrosive coating) (Example for small floor type) *Clear acrylic resin coating Generally, the hairpin tubes on the ends of the evaporator...

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INDUSTRIAL DEHUMIDIFICATION-11

Drain Piping Connection (R1/2)(Both Side) Expanded Metal Dehumidification capacity characteristic curve Indoor Air Inlet Humidity (%) Note: 1. The diagram shows the values when a dehumidifier inverter with the above capacity runs at maximum frequency.The "○" in the diagram indicates the maximum capacity for standard operating conditions: Air inlet temperature 25°C, indoor air inlet humidity 80%. 2. The "●" in the diagram indicates the capacity at the nominal operation under standard operating conditions. 3. When the air inlet temperature falls below approximately 20°C, defrosting starts and this...

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INDUSTRIAL DEHUMIDIFICATION-12

Dimensional drawing Dimensional drawing of indoor unit with plenum Chamber (optional) (mm) (inverter-equipped) < Reheating only type > Earth Terminal(M5 Screw) Terminal Block for Transmission Transmission Wiring Terminal(M3.5 Screw) Service Space Unit (Front) Emergency Drain Piping Connection Service Space Indoor Air Inlet Humidity (%) Note: 1. The diagram shows the values when a dehumidifier inverter with the above capacity runs at maximum frequency. The "○" in the diagram indicates the maximum capacity for standard operating conditions: Air inlet temperature 25°C, indoor air inlet humidity...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.