Vanman ESL200 Motorized Louver — Electric Operable Louver with Thermal-Break Blades

ESL200 is an electric motorized louver designed for façade and roof openings where natural ventilation, energy savings, and smoke relief must work together. The system supports multi-channel / cascade control with real-time status feedback to the fire control center, and can ingest signals from smoke, rain, wind, temperature, humidity, and gas sensors. A 24 V backup battery ensures safe actuation during power loss events.

Key Benefits

• Energy-efficient by design — Thermally-broken aluminum blades with insulation infill cut heat transfer while providing controlled ventilation. 

• Smart, safe operation — Links with MEP equipment (auto-open on run, auto-close on stop), supports fire signaling for smoke exhaust, and

   reports live status. 

• Flexible installation — Suits horizontal or vertical install to accommodate different opening geometries and architectural layouts. 

• Custom opening angle — Set blade angle to balance airflow, daylight, and efficiency goals.  

Construction & Materials

• Blades: Thermally-broken aluminum with internal insulation fill for improved thermal performance. Finish options and colors are

   customizable to match façade design. 

• Frames & Sizes: Built to project-specific opening sizes; shop drawings provided for anchors, flashings, and tolerances. 

Thermal Performance

Thermal transmittance (U-value):

  • 50 mm blades: U ≈ 1.8 W/m²·K

  • 60 mm blades: U ≈ 1.3 W/m²·K. 

Values above are from the product document; final performance depends on unit size, glazing/blanking strategy around the opening, and interface detailing.

Actuation & Controls

• Control Box: Input 100–240 VAC, Output 24 V, 10–80 A current range; supports multi-channel and cascade control for zone/group operation. 

• Signals In/Out: Manual switch, remote, smoke / rain / wind / temperature / humidity / gas sensors; two-way communication with the fire

   control center for emergency modes. 

• Backup Power: Built-in 24 V battery for safe opening during outages. 

• MEP Linkage: Can be interlocked so that the louver opens when equipment runs and closes when equipment stops to reduce energy loss. 

Drives & Testing

• Linear actuators: 500–2000 N thrust; IP32 ingress protection.

• Endurance: 10,000 double strokes at 1000 N rated load.

• Fire test: per DIN 18232-3, 30-minute high-temperature test as specified. 

Installation & Integration

• Orientation: Horizontal or vertical mounting to suit façade bays, lightwells, rooftop penthouses, or plant-room openings. 

• Interfaces: Project-specific curbs/flashings, BMS I/O schedules, and commissioning checklists available on request.

• Finishes: Powder coat / anodized options for exterior durability, coordinated with adjacent envelope materials. 

Options & Accessories

• Blade thickness: 50 mm / 60 mm (select to balance U-value vs. depth). 

• Control: Zone grouping, priority logic (fire > manual), and environmental sensor kits. 

• Aesthetics: Custom colors and trim packages to integrate with the façade.

Typical Applications

• Commercial: offices, malls, hotels—where motorized louvers help automate comfort and save energy. 

• Industrial: factories, warehouses—natural ventilation and smoke exhaust strategies. 

• Public: schools, hospitals, sports venues—intelligent ventilation with robust thermal performance. 

Models & Naming

• ESL200-50 — 50 mm thermally-broken insulated blade (U ≈ 1.8 W/m²·K).

• ESL200-60 — 60 mm thermally-broken insulated blade (U ≈ 1.3 W/m²·K). 

Resources for Architects & Contractors

• Submittals: plan/section details, wiring schematics, sequence of operations (normal / smoke / fail-safe).

• Commissioning templates for multi-zone group control and sensor calibration.

Internal Linking (Recommended)

• Need an operable roof louver vent with heavy-duty industrial options? See Vanman Pro Series.

• Prefer a low-profile louvered ventilator (roof/wall) with optional glazing? See Vanman Famous System.

• Targeting storm-resistant horizontal louvers for passive, always-on extraction? See Vanman Aeolus Series.

• Looking for daylighting + ventilation with tapered/arched profiles? See Vanman Sunlight Model.

FAQ

Q: What’s the difference between a “motorized louver” and an “operable louver”?

A: They’re the same in practice—ESL200 is an electric operable/motorized louver driven by linear actuators with BMS/fire integration. 

Q: Can ESL200 act as part of a smoke and heat exhaust (SHEV) strategy?

A: Yes. The system reports to the fire control center, supports priority logic, and has 24 V backup power for fail-safe opening. Fire performance is tested per DIN 18232-3. Project-level design and code compliance should be verified by the engineer of record. 

Q: How do I choose between 50 mm and 60 mm blades?

A: Select 50 mm when depth is tight and a U ≈ 1.8 W/m²·K is acceptable; choose 60 mm to push U ≈ 1.3 W/m²·K for better insulation. Final selection depends on thermal targets and façade build-up. 

Q: What happens during a power outage?

A: The 24 V backup allows emergency opening; the system also supports manual commands and sensor inputs for safe operation.