• Hitachi outdoor air conditioner on a white background
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Hitachi Primairy R32 Single Phase Heat Pump Inverter Outdoor Unit

Hitachi Primairy R32 Single Phase Heat Pump Inverter Outdoor Unit

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Product Overview: At a Glance

The Hitachi Primairy R32 Single Phase Heat Pump Inverter Outdoor Unit delivers efficient, quiet, and reliable heating and cooling for residential and light commercial spaces. Featuring advanced inverter technology and eco-friendly R32 refrigerant, it adjusts output to match building demand for optimal comfort and energy efficiency.

Key Features & Benefits

  • Advanced inverter technology - dynamically adjusts output to maintain consistent temperatures and reduce energy use.
  • Eco-friendly R32 refrigerant - lower environmental impact with high efficiency.
  • Compact and quiet design - suitable for discreet installation in homes, offices, and small commercial settings.
  • Wide capacity range - available from 3.0HP to 6.0HP to suit varying requirements.
  • Reliable performance - designed for long-lasting operation with minimal maintenance.
  • Seamless integration - pairs with Hitachi split system indoor units for multi-zone comfort.

Typical Applications & Use Cases

Ideal for homes, offices, and small commercial environments, the Primairy R32 outdoor unit provides consistent heating and cooling while minimising energy consumption. Its quiet operation and compact form make it particularly suited for residential areas and locations where discretion is important.

Technical Overview

Using R32 refrigerant and inverter technology, the Primairy R32 Single Phase Heat Pump Outdoor Unit delivers capacities from 3.0HP to 6.0HP. The system ensures efficient heating and cooling, with output automatically adjusting to building load requirements. Compatible with Hitachi split system indoor units, it offers flexible installation options and reliable year-round performance.

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

  • Primary ODU RAS-(U/T)NES(N/M)H1

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Variant Variant total Quantity Price Variant total
Hitachi outdoor air conditioner on a white background
RAS-3.0UFESNH1 - 3HPRAS-3.0UFESNH1
RAS-3.0UFESNH1 - 3HPRAS-3.0UFESNH1
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Hitachi outdoor air conditioner on a white background
RAS-3.5UFESNH1 - 3.5HPRAS-3.5UFESNH1
RAS-3.5UFESNH1 - 3.5HPRAS-3.5UFESNH1
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Hitachi outdoor air conditioner on a white background
RAS-4.0UFESNH1 - 4HPRAS-4.0UFESNH1
RAS-4.0UFESNH1 - 4HPRAS-4.0UFESNH1
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Hitachi outdoor air conditioner on a white background
RAS-5.0UFESNH1 - 5HPRAS-5.0UFESNH1
RAS-5.0UFESNH1 - 5HPRAS-5.0UFESNH1
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
Hitachi outdoor air conditioner on a white background
RAS-6.0UFESNH1 - 6HPRAS-6.0UFESNH1
RAS-6.0UFESNH1 - 6HPRAS-6.0UFESNH1
£0.00
£0.00/ea
 £0.00
£0.00
£0.00/ea
 £0.00
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Hitachi Primairy R32 Single Phase Heat Pump Inverter Outdoor Unit FAQs

What is the Hitachi Primairy range?
Primairy is Hitachi’s cost-effective commercial VRF solution, designed for small to medium-sized projects.
Why choose Hitachi Primairy?
It offers reliable performance, simplified installation, and competitive pricing, making it ideal for budget-conscious projects.
Does the Primairy range still provide high efficiency?
Of course, despite being cost-effective, Primairy systems maintain energy-efficient operation for long-term savings.
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 is R32 refrigerant and why is it used in HVAC systems?
R32 is a next-generation refrigerant with lower global warming potential (GWP) than older gases such as R410A. It delivers high efficiency while helping reduce environmental impact, making it a popular choice for modern heat pumps and air conditioning units in the UK.
What does inverter technology mean in HVAC?
Inverter-driven compressors adjust their speed to match demand, rather than switching on and off. This improves efficiency, reduces energy use, and delivers more consistent comfort compared to non-inverter models.
What’s the difference between single-phase and three-phase HVAC systems?
Single-phase systems are common in UK homes and small businesses, while three-phase systems are designed for larger commercial or industrial applications where higher power and efficiency are required.

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

Need any help with our range of Hitachi Primairy 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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