Indirect heating systems

DSA Wall

An indirect substation is used when district heating network conditions, such as pressure and temperature, do not allow direct connection. When a substation is connected indirectly, a heat exchanger provides energy-efficient heat transfer. It also ensures that the primary network supply side and the secondary building installation side remain safely separated.

In this way, the building application works regardless of pressure or temperature variations in the district heating network (hydronic balancing) and is safe from pipe breaks or leaks.

Danfoss indirect substations are self-contained units that are generally wall-mounted. They can support single or multiple heating circuits, with or without domestic hot water production on the primary or secondary side.

These advanced solutions are also available with an electronic controller for weather compensation. This ensures easy and energy-efficient operation while simultaneously allowing central monitoring and energy consumption transparency.

Features and benefits

Advanced solutions available also with an electronic controller for weather compensation
Indirect substations with Micro Plate™ heat exchangers provide energy efficient heat transfer

District Heating Substations operating guide

Use this document for planning indirect heating / cooling, dhw production and other water based heating systems. Can be used for DSA; DPS; DSE; DSS; DSM; and DSC product types.

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Smaller, lighter, more efficient: Danfoss' compact substation DSA1 Mini

Learn how the station is installed, as well as tips and tricks for commissioning and maintenance.

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type

Tools and apps

Heat Selector

Danfoss Heat Selector is the best-in-class online selection tool that optimizes planning process for heating application experts.

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Case studies

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