Mitsubishi Electric has revised the installation guidelines for its Ecodan R290 air source heat pump range, increasing flexibility around refrigerant protection zones to simplify installation on constrained or retrofit sites.
The updated guidance follows a technical and safety review, resulting in the removal of certain restrictions within the R290 protection zone. Installers are now permitted to site outdoor units near grooves, waste-water systems, sewer inlets, and downpipes—elements previously prohibited.
The revised manual clarifies that restrictions now apply only to building openings or entrances to basements, such as windows, doors, and ventilation openings within 300mm from the base. Mitsubishi Electric states that this clarification helps avoid ambiguity and supports safer, more practical site assessments.
The company has also announced a £200 [approx. USD 255] reduction in the list price of the 5kW Ecodan R290 unit to support adoption, especially for smaller properties and retrofit projects.
In parallel, Mitsubishi Electric is preparing for the withdrawal of the Ecodan R32 heat pump range, with one year remaining in its availability. Installers are encouraged to transition to R290 to align with environmental regulations.
Dedicated training for R290 systems remains available, covering installation, commissioning, servicing, and safety procedures. Training is delivered through both online modules and in-person sessions at Mitsubishi Electric training centres.
“The Ecodan R290 is the next generation of heat pump technology, and we are committed to making the transition as straightforward as possible for installers and customers,” said Joanna Crown, Product Marketing Manager. “By introducing greater flexibility around protection zones, investing in specialist training, and reducing the cost of entry with a lower price on the 5kW unit, we are removing barriers and giving the market confidence that the future of low-carbon heating is here now.”
