World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom

Products

Keep up-to-date with the latest new products and technology

Features

General articles, applications and industry analysis

Danfoss OK for R404A replacements

MTZ
The MLZ (left) and MTZ are both cleared for use with R407A and R407F

DENMARK: The lower GWP refrigerants R407A/F have been validated for use in Danfoss Maneurop reciprocating MTZ compressors and Danfoss scrolls MLZ.

The qualification plan encompasses Optyma Plus new generation and Optyma Slim Pack ranges for the end of February 2015.

R407A and R407F are both blends of R134a, R125 and R32 in different composition.  R407A is 40% R134a, 40% R125, 20% R32 and R407F is 40% R134a, 30% R125 and 30% R32.

Although not promoted as long-term replacements, R407A and R407F provide a lower GWP alternative to R404A in new and replacement systems. R404A is to be banned in Europe and is coming under increasing pressure worldwide due to its large GWP of 3922.

R407A has a GWP of around 2107 and the greater percentage of R32 gives R407F a slightly lower GWP at 1824.

Neither are “drop-in” replacements but R407A is compatible with the same oils, elastomers and plastics as R404A, the refrigerant it is designed to replace, but exhibits an increased compressor discharge temperature and greater glide. R407F has a similar cooling capacity to R404A and improved energy efficiency. Like R407A, R407F is fully compatible with the POE lubricants used in an R404A system and, in many cases, the original oil can be used.

Further details on R407A and R407F can be found in our review of R404A replacements R404A – the alternatives and in these separate Linde pdf documents for R407A and R407F.

Danfoss and its partner wholesalers can provide assistance to installers and OEMs in the selection and retrofit when switching to the new refrigerants with specific guidelines and selection tools.

Application guidelines and instructions for the MLZ and MTZ compressors are available at cc.danfoss.com.

Latest News

20th February 2024

F-gas regulation published in Official Journal

EUROPE: The new F-gas regulation has now been published in the EU’s Official Journal, making it legally binding and entering into force in 20 days.
20th February 2024

Carrier Germany increases heat pump training

GERMANY: Carrier Germany is offering new hydraulics training courses  at its training centre on the IKKE campus in Duisburg to support the growing demand for heat pump expertise. 
20th February 2024

Oceanair acquired by builders’ merchant MKM

UK: Air conditioning and heat pump distributor Oceanair UK has been acquired by MKM, the independent builders’ merchant.
20th February 2024

Carrier to build factory and R&D facility in Saudi Arabia

SAUDI ARABIA: Carrier is to build an advanced manufacturing and R&D facility in Saudi Arabia in a partnership with Alat, a new Riyadh-based public investment fund company.
19th February 2024

BDN offers high level monitoring

IRELAND: The first installation of Bitzer’s Digital Network (BDN) in Ireland is providing high-level monitoring, system diagnostics and optimisation for an award-winning deli food specialist.
19th February 2024

Manchester receives heat pump training boost

UK: Daikin UK in partnership with the Green Skills Academy is to deliver the first heat pump training programme for college tutors and staff at nine Greater Manchester colleges.