Dual-flow heat recovery unit ERS S40

residentialhomefor home

Product overview
The NIBE ERS S40 is a heat recovery ventilation unit designed for residential applications. It provides temperature efficiency up to 85%, low energy consumption, a built-in humidity sensor and an integrated reheater. The rotating heat exchanger enables moisture recovery from exhaust air to improve indoor humidity control.

Usage and control
Designed for houses up to 250 m², the unit can be installed in cold spaces. It is delivered in a left-hand duct connection version and can be converted to right-hand. The NIBE ERS S40 is intended for installation with NIBE S-series ground-source heat pumps or NIBE air/water heat pumps together with S-series VVM/SMO to form a complete heating and ventilation system. Control is handled via the heat pump with smart integration for energy-aware operation and automatic indoor climate adjustment.

Key features

• Heat recovery ventilation unit with temperature efficiency up to 85%.
• Low energy consumption design.
• Built-in humidity sensor for moisture control.
• Integrated reheater for supplementary heating.
• Rotating heat exchanger that recovers moisture from exhaust air.
• Delivered left-hand for duct connections; convertible to right-hand.
• Suitable for houses up to 250 m².
• Compatible with NIBE S-series heat pumps and S-series VVM/SMO for complete systems.
• Smart-home compatible control via heat pump; automatic climate regulation.

Accessories (examples shown on product page)

• NIBE TOC 40 Top cabinet 245 mm
• NIBE TOC 40 Top cabinet 345 mm
• NIBE TOC 40 Top Cabinet 385-635 mm (adjustable)
• NIBE TOC 40 Top cabinet 445 mm

Dimensions / Weight (table)
Height (mm): 600
Width (mm): 600
Depth (mm): 620
Net weight (kg): 45

Technical specifications

• Efficiency: temperature efficiency up to 85% (heat recovery).
• Suitable building size: up to 250 m².
• Humidity sensor: built-in for humidity control and moisture recovery.
• Heat exchanger: rotating type that recovers moisture from exhaust air.
• Reheater: integrated reheater included.
• Mounting/connection: delivered left-hand; convertible to right-hand.
• Energy: designed for low energy consumption; high temperature efficiency.
• Compatibility: for installation with NIBE S-series ground-source or air/water heat pumps together with S-series VVM/SMO.
• Control: controllable via heat pump; supports smart integration and automatic indoor climate adjustment.