HDG Compact Cascade 130-190(E)
HDG Compact Cascade 130-190(E) offers unrivalled operational reliability and maximum convenience in the smallest of spaces.
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Hydraulics and installation
Example installation: A wide variety of solutions are conceivable. For example, the supply from own or joint fuel storage facilities.
Example hydraulics: Both boilers are connected to a central accumulator. By means of HDG accumulator management, the lead boilers change automatically. -
Dimensions and distances
Minimum dimensions: HDG Compact cascade in wood chip operation with delivery system HDG VBZ 120.
Minimum dimensions: HDG Compact cascade in pellet mode with pellet suction system.
Powerful, demand-oriented and reliable
For increased power requirements, HDG heating systems can be combined in a cascade configuration. The advantages of a cascade solution include a wide output range, reliable operation and heat supply matched to demand, particularly when energy requirements fluctuate. With HDG, a cascade consists of two boilers connected to a common accumulator.
The HDG Compact cascade combines the output range of larger boiler systems with the flexibility of a multi-boiler configuration.
Adapted to the heat demand
A cascade system is designed to match heat output to heat demand. When demand is high, both boilers operate. When demand is lower, only one boiler operates, alternating between the two units. This alternating operation can reduce operating hours per boiler and lower the thermal load on individual components. This can support the service life of the installed components.
HDG cascade management
Using the HDG accumulator management system, the installed boilers are alternately assigned the role of lead boiler. Thanks to the independent operation of both boilers, one boiler can continue operating if the other is unavailable.
Service during operation
Maintenance work can be carried out on one boiler while the second boiler remains in operation, subject to the system configuration and operating conditions. If one boiler is unavailable, the second boiler can continue to provide heat for the connected heating components within its available capacity.
Video of the HDG cascade system
Find out how easy it is to heat with the HDG and experience our flexible cascade solution as used by our customers.
Use the entire tree with HDG!
Until now, the use of wood chips from branches, treetops and thinning wood could be challenging. With HDG, the Vario feed system and the integrated fine dust separator enable the use of coarser and ash-rich fuels, subject to the applicable fuel specifications.
Integrated fine dust saparator
The integrated fine dust separator is designed to support the use of ash-rich fuels, subject to the applicable fuel specifications. Due to its integration into the boiler, only approximately 5 cm of additional installation space is required. Fine dust collected by the separator is removed automatically and conveyed to the central ash container together with other combustion residues.
Advantages:
- Suitable for the use of ash-rich fuels from forest residues, subject to the applicable fuel specifications
- Electrostatic separator supports low fine dust emissions throughout different operating phases
- Thanks to integration in the boiler, only approximately 5 cm of additional installation space is required
- Automatic cleaning system for the electrode and separator surfaces
- Integrated removal of filter ash into the ash container
- Low flue gas pipe connection, suitable for many existing chimney systems
Absolute control
Perfectly regulated with the HDG Control
The new HDG Control is the intelligent control centre for your entire heating system. Whether on the large touchscreen on the boiler or via the app: With HDG Control, you always have absolute control over your heating system.
- Intelligent HDG Control cascade management
- Control of combustion and output
- Control of external heat sources
- Integration of solar thermal systems, accumulators, heating circuits, mains pumps
- Domestic hot water preparation, etc.
- On request: Full web access and app for iOS and Android
From the warehouse to the boiler
Flexible delivery system and feeding technology for every area of application
A sophisticated delivery and feeding system is crucial for the safe and reliable operation of an automatic wood heating system. With clever innovations, the new HDG Vario system sets standards here.
- Cut-Connection: Huge transfer opening between the auger and the rotary feeder reliably prevents material blockages
- 4-chamber rotary feeder: Combines absolute back burn protection
- with minimal component stress due to low friction surfaces
- Stoker auger with dosing container: The fuel dosage via light barrier guarantees an even material supply and constant output even with different fill levels in the warehouse
In addition, with several delivery systems for wood chips (flexi blade delivery system, hinged arm delivery system, walking floor delivery system, etc.) and pellets (suction system, auger delivery system), solutions are also available for fuel transport for every application.