SAV moves into high-efficiency hot water

Published:  18 February, 2006

module
Instantaneous domestic hot water is provided to order using a heating circuit and SAV’s heat exchange module.

SAV Valve Systems has introduced a heat-exchange module to produce domestic hot water direct from cold mains using heat from central boiler plant. It comprises a compact plate heat exchanger and differential-pressure control valve (DPCV). Cold water is heated directly, so no separate cylinder or calorifier is required.

The unit is so efficient that an 80°C flow temperature is reduced to 15°C when the cold water is at 10°C — maximising the efficiency of condensing boilers. The system is also effective with a flow temperature of around 60°C, such as those associated with underfloor heating.

These modules are available in sizes from 35 to 220 kW.

When a hot-water outlet is opened, the change in system pressure is detected and all the flow in the heating circuit is diverted to DHW supply.

Constant modulating control ensures energy is directed according to demand. The DHW valve in the module closes immediately demand ceases, largely preventing the formation of bacteria and limescale. The cold-water connection includes a dual-function ball valve, non-return and safety valves — so that backflow cannot occur.

These heat-exchange modules are supplied fully assembled and pre-tested for fast installation.



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.
July 2018: DIGITAL EDITION

ARCHIVE OF DIGITAL EDITIONS

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

Jobs

  • Energy and sustainability: Performance and analysis manager

     An exciting opportunity will arise shortly for an exceptional person with extensive experience of managing sustainability within large complex organisations. Can you demonstrate extensive experience of energy management, proven ability to drive program......

more jobs »

Poll

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



Calendar