• Beige Hitachi outdoor air conditioning unit on a white background
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Hitachi airHome 400 R32 Heat Pump Outdoor Unit

Hitachi airHome 400 R32 Heat Pump Outdoor Unit

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Product Overview: At a Glance

The Hitachi airHome 400 R32 Heat Pump Outdoor Unit delivers efficient heating and cooling for residential and light commercial spaces. Its compact design and advanced R32 refrigerant ensure high performance with reduced environmental impact.

Key Features & Benefits

  • Energy-efficient R32 refrigerant - reduces running costs and environmental impact
  • Compact design - ideal for limited outdoor space installations
  • Quiet operation - engineered for low noise during heating and cooling
  • Reliable performance - consistent temperature control year-round
  • Easy installation - lightweight and straightforward setup for installers

Typical Applications & Use Cases

Perfect for homes, small offices, and retail spaces, the airHome 400 outdoor unit pairs with compatible indoor units to provide seamless year-round comfort. Its discreet footprint and quiet operation make it suitable for urban and residential installations.

Technical Overview

Designed to work with the airHome 400 range of indoor units, this R32 heat pump outdoor unit balances high efficiency with low noise. See technical specifications for detailed capacity ranges and energy performance ratings.

📄 View Specification Sheet

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

  • airHome 400 RAK-DJ-(Q/R)HAE/RAC-DJ-WHAE
  • airHome 400 RAK/RAC-DJ-PHAE
  • airHome 400 Heat Pump R32 Outdoor Unit
  • RAC-DJ18RHAE

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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-DJ18PHAERAC-DJ18PHAE
RAC-DJ18PHAERAC-DJ18PHAE
£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-DJ25PHAERAC-DJ25PHAE
RAC-DJ25PHAERAC-DJ25PHAE
£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-DJ35PHAERAC-DJ35PHAE
RAC-DJ35PHAERAC-DJ35PHAE
£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-DJ50PHAERAC-DJ50PHAE
RAC-DJ50PHAERAC-DJ50PHAE
£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-DJ60PHAERAC-DJ60PHAE
RAC-DJ60PHAERAC-DJ60PHAE
£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-DJ70PHAERAC-DJ70PHAE
RAC-DJ70PHAERAC-DJ70PHAE
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
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Hitachi airHome 400 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 is a heat pump?
A heat pump transfers heat rather than generating it through combustion, offering efficient heating and cooling. Modern heat pumps can deliver multiple units of heating for every unit of electricity consumed, helping lower running costs.
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.
Are HVAC systems noisy?
Modern indoor units are designed for quiet operation, with sound levels often comparable to a whisper, making them suitable for bedrooms and offices.
How energy efficient are modern air conditioning and heat pump systems?
Modern HVAC systems achieve high seasonal efficiency ratings - SEER (Seasonal Energy Efficiency Ratio) and SCOP (Seasonal Coefficient of Performance), lowering running costs compared to older units while reducing carbon emissions.

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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