Helty Flow 600 Steel (STD) Decentralised Commercial MVHR System for Schools & Offices

Helty Flow600 Steel Ventilation Unit (STD Model)

Core Advantage: Simplified, Clean Installation and Quick Retrofitting

• Minimal Structural Impact: This decentralised ventilation system does not require long, bulky ductwork throughout the space. Installation requires drilling just two 200 mm diameter holes through the exterior wall (2x Ø200 mm).

• Significant Cost Savings: Eliminates the budget needed for ductwork design, materials, and installation, as well as the need to hide ducting behind drywall or suspended ceilings.

• Fast Commissioning: Installation takes minimal time and avoids long operational downtime, making it ideal for active commercial or residential spaces.

• Ideal for Finished Interiors (Retrofit): With a compact depth of just 22 cm (222 mm), the unit easily integrates into fully renovated rooms or buildings undergoing modernization.

• Flexible Placement: The sturdy steel casing of the Steel model is designed for exposed mounting on either walls or ceilings, seamlessly blending into modern interiors.

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Detailed Overview of Capabilities and Technological Features

• High Performance and Flexible Airflow Control:

  • Wide airflow adjustment range: 250 / 300 / 350 / 450 / 550 / 600 m³/h.

  • Multiple operating modes: ultra-quiet Night Mode, 4 standard speeds for everyday comfort, and a Hyperventilation (Boost) mode for rapid airing out.

• Advanced Energy Efficiency and Recovery:

  • Enthalpic Cross-Flow Heat Exchanger: Recovers sensible heat (up to 82% thermal efficiency) and moisture, preventing indoor air from drying out in winter and reducing the cooling load on air conditioning during summer.

  • Energy Efficiency Class: A+ (Cold climate) / A (Temperate climate) / E (Warm climate).

  • Specific Energy Consumption (SEC): -76.8 kWh/(m²·year) for cold / -40.6 kWh/(m²·year) for temperate / -17.2 kWh/(m²·year) for warm climates.

• Quiet Operation and Acoustic Comfort:

  • Sound Pressure Level: 35 / 39 / 43 / 47.4 / 52.5 / 55 dB(A).

  • Sound Power Level: 50 / 53 / 57 / 61 / 67 / 69 dB(A).

• Multi-Stage Air Filtration and Monitoring:

  • Supply Air (Intake Filter): Dual-stage filtration via Coarse 80% (G3) + high-efficiency ePM1 80% (F9) filter.

  • Extract Air (Extraction Filter): Coarse 80% (G3) filter protecting internal components.

  • Smart Monitoring: Automatic filter check with a pressure sensor that continuously monitors clogging and triggers filter replacement alerts.

• Smart Control & Sensors:

  • Comfort function and Humidity sensor included.

  • Panel LED On/Off, Remote control compatibility, removable STD control panel, removable cloud control panel, and Helty Home app support.

Full Technical Specifications and Features (Version STD)

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Heat recovery ventilation cost

You can install HELTY yourself or use our installation service.