sMove s4 controller

Hardwired wall controller for up to 4 iV-Compact units. 5-year manufacturer warranty. Capacitive touch buttons switch between operating modes.

Four ventilation modes

Four pre-defined airflow levels selected at the controller. Modes correspond to humidity-protection, reduced, nominal, and intensive ventilation per DIN 1946-6.

Infinite slider

For finer control beyond the four presets, the slider allows infinitely variable airflow adjustment. Useful for fine-tuning to exact room volume or occupancy.

Boost function

15-minute timed boost at the controller — for clearing odours, post-cooking, or rapid air change after gatherings. Returns to the previously set mode automatically.

Pause function

Temporarily stop ventilation for 1, 2, 4, or 8 hours. Auto-resumes at the previously set mode. Useful when leaving the home or during loud activity.

Operating hours counter

Built into the sMove — useful for scheduling filter cleaning at consistent intervals (typically 3–6 months).

Optional sensor add-ons

For automatic demand-control, add a CS1 CO₂ sensor or HYG18/HYG12 humidistat to the sMove. The controller then ramps airflow when sensor thresholds are crossed.

Whole-floor scaling

Add the sMove s8 controller (instead of s4) to manage up to 8 iV-Compact units from a single wall position. Ideal for multi-room garden offices and timber-frame extensions.

Wall opening

Ø180 mm core hole. Minimum wall thickness >140 mm — the lowest of any inVENTer wall MVHR. Suits modern timber-frame, stud-wall, and lightweight extension construction.

Wall sleeve D160

Standard R-D160 wall sleeve. Optional Simplex installation block or wall mounting block D180 for new construction with pre-installed sleeve and integrated slope.

Xenion® reversible fan

Brushless DC fan with built-in temperature monitor and wind-pressure stabiliser. Reverses direction every 70 seconds. S3 classification per DIN EN 13141-8.

Ceramic accumulator

Honeycomb thermal storage core, identical hardware to the iV-Smart+. 72% recovery — lower than Smart+ (87%) due to the shorter exchange path required by the thin-wall design.

Flair inner cover

Sound-insulating internal panel 233 × 233 mm with integrated G4 filter (ISO Coarse 60%). White RAL 9010 standard. Wired into the sMove controller.

Compact weather hood

External protective hood 203 × 276 mm with driving-rain protection. Sits proud of the wall to house the fan stack — slightly more visible than the standard Flex hood. Choice of white (RAL 9016), grey (RAL 9006), or anthracite (RAL 7016).

G4 filter

ISO Coarse 60% filter integrated into the Flair inner cover. Catches dust, insects, and large airborne particles. Optional pollen and activated-carbon upgrades available at the same fitment.

Energy class

A in average climate. ErP / Ecodesign rated, KfW Efficiency House proven across Germany. The thin-wall trade-off does cost an energy class compared to Smart+ (A+ in cold climate).

5 year warranty

inVENTer covers the unit for 5 years from commissioning. Manufactured in Germany since 1999. ISO 9001 quality system, full CE conformity.

25+ year design life

Ceramic accumulator has no degradation path. Xenion brushless fans rated 50,000+ hours continuous operation. Inventin insulation does not settle or compress.

Filter change

Every 6–12 months — pull out the filter cartridge, slot in new one. Choice of pollen, activated carbon, or PM2.5 fine particulate. Takes 2 minutes per unit.

No service contract

No annual servicing required. No smart subscriptions, no remote monitoring fees. The unit just runs.

No refrigerant

Purely mechanical — fans, ceramic, no F-gas. No regulated handling, no leak risk, no phase-out concerns.