DHW interface for district heating

Alfa Laval

Designed for interfacing with district/community heating networks are Alfa Laval AquaFlow and AquaStore (pictured) 2-port tap water heaters. They complement the existing 3- and 4-port models and can deliver large quantities of instantaneous or semi-instantaneous domestic hot water to buildings connected to a district-heating network.

The new 2-port models have maximum operating conditions of 25 bar gauge and 130°C on the primary side and 10 bar gauge and 90°C on the secondary side. Typical operating conditions might be primary hot water from the district-heating network at 110°C with DHW off at about 60°C.

These 2-port units can be self acting (regulated by a thermostat) or controlled electronically. A fail-safe function closes the valves in the event of a power shortage or if the water temperature is too high. Additional controls provide early warning for scaling, thermal treatment and a complete set of temperature programs for different applications.

Every sub-station is designed for plug and play and comes fully assembled and tested — ready for connection to a power supply and piping.

For more information on this story, click here: Dec 09, 103
Related links:
Related articles:



modbs tv logo

New Sustainability Director for Wates Group

Wates Group, a family-owned development, building and property maintenance company, has appointed Cressida Curtis as its new Group Sustainability Director.

Domus Ventilation appoints new contractor sales managers

Ventilation systems manufacturer Domus Ventilation has announced the arrival of three new Contractor Sales Managers.