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Hitachi-Johnson Controls Air Conditioning Inc.
Room Air Conditioners

Room Air Conditioners

Product catalog summary

Company Profile and Quality Control
Hitachi is a global leader in air conditioning technology, focusing on innovation and environmental responsibility. The company invests heavily in research and development, resulting in numerous technological advancements. Hitachi's air conditioning products are primarily developed at the Tochigi Works in Japan, which is ISO9001 and ISO14001 certified, ensuring high-quality standards and effective environmental management.

Product Range Overview
Hitachi offers a diverse range of room air conditioners, including Monozone, Multizone, and Summit models. These units feature user-friendly designs with high efficiency DC Inverter PAM control, eco-friendly R410a refrigerant, and low ambient working ranges. The product line includes wall-mounted, floor-mounted, and ceiling cassette units, catering to various applications.

Features and Benefits
Hitachi air conditioners incorporate advanced technologies such as the Digital DC Scroll Compressor and DC Twin Rotary Compressor, enhancing performance and reducing vibration. The PAM control system improves power efficiency, achieving a high COP of over 4.0. The units are designed for high energy efficiency, conforming to the Energy Labelling Directive, and feature rapid start-up and improved performance due to DC inverter technology.

Monozone/Multizone Systems
The Monozone and Multizone systems offer extensive indoor/outdoor compatibility, allowing for zone-specific heating or cooling. These systems use DC inverter technology for precise temperature control and low noise levels, capable of operating in low ambient temperatures, making them suitable for various environments.

Installation and Controls
Hitachi air conditioners are designed for easy installation and servicing, with features like self-diagnosis systems and auto-restart functions. The units come with user-friendly remote controls and optional weekly timers for enhanced convenience. The systems support long pipe lengths, facilitating flexible installation options.

Key Benefits

DC Inverter PAM control for efficient energy use.
Wide selection of indoor unit types and capacities.
Compatibility between outdoor and indoor units.
High COP and low noise operation.
Cooling available at ambient temperatures as low as -10°C and heating at -15°C.
Auto restart and auto changeover features.
Washable carbon and anti-bacterial air purifying filter.
24-hour remote control timer.
Uses R410a refrigerant.

Specifications

Power Supply: DC 35V.
Sound Pressure Level: Varies by model and mode (cooling/heating).
Dimensions: Height 295 mm, Width 795 mm, Depth 198 mm.
Weight: 10 kg.
Refrigerant: R410A.
Air Flow Rate: Varies by model and mode.
Refrigerant Piping: Liquid Line 6.35 mm, Gas Line varies by model.
Auto Restart and LED Self Diagnosis available.

Control Options

Simple Weekly Timer.
Wired Remote Control.
H-Link adaptor.

Technical Descriptions

RAK Model: Wall Mounted unit with cooling and heating capacities from 2.5kW to 5.0kW.
RAF Model: Floor Mounted unit with similar capacities and additional air flow control features.
RAI Model: 60cm x 60cm cassette with built-in drain pump and flexible air flow system.
RAD Model: Ceiling unit with compact design and built-in drain pump.

Monozone/Multizone Combinations

Various combinations of indoor units are available for different room setups.
At least two indoor units should be connected for certain models.

Notes

Cooling and heating capacities are based on specific indoor and outdoor air inlet temperatures and piping conditions.

Overview
This document provides detailed specifications and configurations for Hitachi's Summit range of air conditioning units, focusing on monozone and multizone combinations, power ratings, and operational features.

Specifications

Power Supply: AC 1Ph 220-230V 50Hz.
Cooling Capacity: Ranges from 2.0 kW to 5.0 kW.
Heating Capacity: Ranges from 2.5 kW to 6.5 kW.
Refrigerant: R410a with expansion valve flow control.
Compressor Type: DC Scroll and DC Rotary.

Performance Metrics

EER/COP: Cooling EER ranges from 2.81 to 4.31, Heating COP ranges from 3.30 to 4.31.
Sound Pressure Levels: Cooling ranges from 35 to 47 dBA, Heating ranges from 36 to 48 dBA.

Configurations

Monozone and multizone combinations are available with various indoor unit capacities (1.8kW, 2.5kW, 3.5kW, 5.0kW).
Outdoor units can connect up to six indoor units with specific power and capacity ratings.

Features

DC PAM inverter technology for high efficiency.
Plasma air purifying system and anti-bacterial tangential fan.
Auto restart and changeover capabilities.
H-Link connectability and weekly timer options.

Accessories

Wireless and wired remote control kits available.
RAC Adapter for H-Link transmission system compatibility.

Installation and Maintenance

Max pipe length is 20-30 meters depending on the model.
Recommended fuse size is 16A.

Overview
The document provides a comprehensive technical description of Hitachi's R410A All DC Inverter air conditioning ranges, highlighting their advanced electronics technology and efficiency. The ranges include various models with cooling and heating capacities from 2.0kW to 8.0kW, utilizing R410A refrigerant and DC compressors for high performance.

Key Features

DC Inverter PAM control for enhanced efficiency.
High Coefficient of Performance (COP) up to 4.31 in cooling and 4.30 in heating.
Low noise operation down to 20dBA in sleep mode.
Cooling functionality available under ambient temperatures as low as -10°C and heating under -15°C.
Auto restart and auto changeover features.
Washable carbon and anti-bacterial air purifying filters.
24-hour remote control timer and R410A refrigerant.

Model Specifications

Indoor and outdoor units are available in various models, each with specific dimensions, weight, and power supply requirements.
Cooling and heating capacities vary across models, with detailed specifications on nominal capacities, total input, and current.
Sound pressure levels are specified for both indoor and outdoor units during cooling and heating operations.
Refrigerant piping details include liquid and gas line dimensions, maximum pipe length, and lift.

Additional Features

H-Link connectability for integration with other systems.
Options for wired and wireless remote controls with timers.
Extended airflow and adjustable static pressure in certain models.
Availability of different cabinet colors and designs, including the new stylish U-flat design for specific models.

Applications
The air conditioning units are suitable for both residential and light commercial use, with specific models designed for in-the-ceiling installation, offering flexibility in air intake direction and additional features like a drain pump and adjustable static pressure.

Note
Specifications are subject to change to incorporate the latest innovations, and the document includes contact information for Hitachi Europe Ltd.

Room Air Conditioners

Room Air Conditioners

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