Heat pump can provide hot water at up to 90C

Published:  04 April, 2012

MHI, heat pump, DHW

MHIs Q-Ton air-to-water heat pump uses CO2 as the refrigerant and can heat sanitary hot water at up to 90C. These 30 kW units can achieve a COP of 4.3 with water on/off at 12/65C and ambient air at 16C, falling to 4.2 with water on/off of 5/65C and ambient of 7C. With an ambient of -25C, the COP is still close to 2.

Q-Ton heat pumps have a 2-stage combined scroll-rotary compressor. Up to 16 units can be connected in a modular configuration to give 480 kW and connected to 4000 l of hot-water storage. Central control is provided by MHIs Superlink II communications network and BMS interface if required.

Running costs are said to be 58% lower than a gas-fired boiler, and there is no need to top up with gas or electric appliances.

For more information on this story, click here:  April 2012, 162

comments powered by Disqus

Search

Welcome

Welcome to Modern Building Services Online, the web edition of Modern Building Services (MBS) journal and the UK's most popular Building Services engineering site. Modern Building Services covers the entire Building Services Engineering industry. This site contains archived content from the journal, plus web-specific content.

When you go to our digital edition, you can also access the archive of digital editions.
October 2018: DIGITAL EDITION

ARCHIVE OF DIGITAL EDITIONS

Modern Building services has a group
on Linkedin - join us!

BESA conference 2018

Show

Jobs

  • Senior Building Services Engineer

      Invitations are invited from experienced Building Services Engineers to assist in the development of a new division within an established professional practice. The projects will be predominantly with Defence-related and Government establishments but w......

  • Building Energy Management Systems (BEMS) Engineer

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

  • Engineering Technical Assistant

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

more jobs »

Poll

"Is the Building Services industry lagging behind in the implementation of BIM?"



Calendar