ACCUBLOC – Engineered for Maximum Energy Efficiency
ACCUBLOC is a regenerative heat recovery solution for air handling units with the highest requirements for energy efficiency and reliability.
Designed for large air volumes, ACCUBLOC achieves thermal efficiencies of up to 90% while maintaining low pressure drops. Its robust wave-plate construction and proven damper technology ensure a long service life with minimal maintenance requirements.
Unlike rotary heat exchangers, ACCUBLOC has no rotating storage mass. Two stationary storage blocks are alternately exposed to outdoor and exhaust air via a damper system. While one storage block absorbs heat from the exhaust air, the other transfers the previously stored energy to the outdoor air.
As the original developer and manufacturer of ACCUBLOC, Polybloc combines more than two decades of experience in regenerative heat recovery with application-specific engineering support and thousands of installations worldwide.
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1. Highest Efficiency
- Extended thermal contact time through wider thermal storage media
- Optimal utilization of the available airflow cross-section
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2. Advantages for AHU Design
- More compact cross-sectional dimensions possible
- Reduced sizing or elimination of AHU components such as preheaters, humidifiers, or dehumidifiers
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3. No Moving Storage Media
- Minimal maintenance requirements and long-term stable performance
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4. Custom Dimensions
- Unlike rotary heat exchangers, height and width can be flexibly adapted to the AHU dimensions.
The Accubloc benefits at a glance
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Highest Efficiency
Maximum energy savings and environmental relief with efficiencies of up to 90 %. No reheater necessary.
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Integrated Control
Modulated by 0 – 10 V signal.
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Little Cross Contamination
Very fast changeover for low exhaust air transfer.
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Frost Resistance
Due to the transfer of moisture to the supply air, freezing is hardly possible even at very cold temperatures.
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Officially Certified
Neutral performance measurement according to EN 308 by HSLU Lucerne.
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Air Humidification
The optional sorption coating transfers moisture into the supply air and thus ensures a comfortable climate in all rooms.
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Easy Installation
Dimensions exactly to the size of the air handling unit, no excess width. Removable storage according to VDI 6022.
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Original Service
Service for commissioning and optionally for maintenance.
Functional Principle
The front storage bank is heated by the exhaust air, the rear bank conveys heat inside and cools down by the outside air. After 20 seconds, the air flow is deflected. The previously heated stoarage banks are now cooled down.
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