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Hitachi airHome 400 Multi R32 Heat Pump Outdoor Unit

Hitachi airHome 400 Multi R32 Heat Pump Outdoor Unit

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Product Overview: At a Glance

The Hitachi airHome 400 Multi Heat Pump R32 Outdoor Unit (RAC-DJ series) provides efficient heating and cooling for multi-split systems in residential and light commercial spaces. Paired with compatible indoor units, it supports up to six zones for flexible climate control, featuring R32 refrigerant for enhanced energy savings and environmental performance.

Key Features & Benefits

  • R32 refrigerant - low GWP for eco-friendly and efficient operation.
  • Multi-split compatibility - connects up to six indoor units for zoned comfort.
  • High energy efficiency - up to A+++ in cooling and A++ in heating for reduced costs.
  • Advanced inverter technology - ensures quiet, precise temperature control.
  • Compact design - space-saving for easy outdoor installation.
  • Compatible with airHome indoor units - seamless integration for smart features like FrostWash and WiFi control.

Typical Applications & Use Cases

Ideal for homes, apartments, small offices, and hotels, the RAC-DJ series enables multi-room heating and cooling in multi-split setups. Its efficient performance and compatibility make it suitable for renovations or new builds requiring zoned climate control without extensive ductwork.

Technical Overview

The Hitachi airHome 400 Multi Heat Pump R32 Outdoor Unit supports a wide range of capacities to suit various applications, utilizing advanced inverter compressors for reliable operation. Compatible with airHome indoor units featuring FrostWash self-cleaning and app control, it ensures optimal efficiency and air quality. Detailed specifications, including dimensions and system pairings, are available in the product datasheet.

📄 View Specification Sheet

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Items on this page may also be known under the following references:

  • RAC-DJWHAE

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Enquire About This Product View full details
Variant Variant total Quantity Price Variant total
Beige Hitachi outdoor air conditioning unit on a white background
RAC-DJ18WHAERAC-DJ18WHAE
RAC-DJ18WHAERAC-DJ18WHAE
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£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Beige Hitachi outdoor air conditioning unit on a white background
RAC-DJ25WHAERAC-DJ25WHAE
RAC-DJ25WHAERAC-DJ25WHAE
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Beige Hitachi outdoor air conditioning unit on a white background
RAC-DJ35WHAERAC-DJ35WHAE
RAC-DJ35WHAERAC-DJ35WHAE
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Beige Hitachi outdoor air conditioning unit on a white background
RAC-DJ50WHAERAC-DJ50WHAE
RAC-DJ50WHAERAC-DJ50WHAE
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
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Hitachi airHome 400 Multi R32 Heat Pump Outdoor Unit FAQs

What is the Hitachi airHome range?
Hitachi airHome is a residential air conditioning line designed for comfort, efficiency, and smart control. With stylish indoor units and quiet operation, it’s ideal for UK homes.
Does Hitachi airHome use eco-friendly refrigerants?
Yes. Many airHome models use R32 refrigerant, which has a lower global warming potential than older gases, supporting sustainability.
Can I control Hitachi airHome remotely?
Yes, The airHome series supports Wi-Fi connectivity and app-based control, allowing users to adjust settings from anywhere.
What’s the difference between an indoor and outdoor unit?
Outdoor units house the compressor and release or absorb heat, while indoor units distribute conditioned air into the building. Together, they form a complete HVAC system.
What does "multi system" mean in HVAC?
A multi system allows multiple indoor units to connect to a single outdoor unit, providing tailored comfort for different rooms or zones.

We’re Here To Help With All Hitachi Heat Pump and RAC Solutions

Need any help with our range of Hitachi airHome products? Looking for advice on Hitachi heat pump systems? Our team is here to support you with both air-to-water heat pumps and RAC (Room Air Conditioning) split systems. Whether you need efficient residential heating and cooling or a commercial renewable energy solution, we can provide expert recommendations. From product selection and energy efficiency advice to installation and after-sales service, we make sure you get the most from Hitachi heat pump technology. Contact us today for help with your Hitachi heat pump or RAC system.

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