Applications (choose one configuration)

A) Multiple Extract Ventilation (MEV-ECO)

• Central multi-room extraction from kitchen, bathrooms, utility, WC

• Continuous trickle with on-demand boost (light switch, wall switch, PIR, humidistat options)

• Helps reduce condensation, odours and mould risk throughout the home

B) Underfloor Crossflow Assist (MEV-ECO-CF)

• Constant-flow control maintains target airflow to assist cross-ventilation in underfloor/subfloor voids

• Set up between paired intake/exhaust grilles to create directed airflow across the void

• Helps dilute moisture and musty odours in suspended timber floors (not a dehumidifier)

Note: Underfloor setup should follow good practice: maintain clear air paths, use weatherproof cowls with insect/rodent mesh, and ensure penetrations are sealed.

Web Content Specification

Key Features

• Brand: Nuaire — MEV-ECO (central MEV) & MEV-ECO-CF (constant-flow)

• EC motor with low specific fan power for quiet, efficient running

• Trickle & boost ventilation; multiple control inputs supported

• Compact case with 100/125 mm side/top spigots (model dependent)

• Flexible siting: loft, cupboard or ceiling void

• CF variant: auto-balancing constant-flow for stable air volumes (ideal for apts/new-build and assisting underfloor crossflow)

• Supports UK Building Regulations Part F when designed and commissioned correctly

What’s Included

• Nuaire MEV-ECO or MEV-ECO-CF fan unit

• Mounting feet/straps & fixings, blanking caps (model dependent)

• Installation & commissioning instructions

Ideal For

• Central MEV: houses, bungalows and apartments consolidating multiple fans into one quiet unit

• Underfloor assist (CF): properties with suspended timber floors needing assisted cross-ventilation in the subfloor void

Installation Notes

Central MEV (MEV-ECO)

• Site the unit in a loft/cupboard/ceiling void with access.

• Use smooth rigid ducting and gentle bends; keep the kitchen branch shortest.

• Fit ceiling extract valves in wet rooms; discharge via a weatherproof external terminal.

• Provide a fused spur and commission trickle/boost to design rates.

Underfloor Crossflow Assist (MEV-ECO-CF)

• Pair external intake and exhaust grilles to establish a cross-path through the void.

• Duct from the CF unit to the grilles; seal penetrations and protect with mesh cowls.

• Set target air volume on the CF unit; verify airflow at terminals; maintain clear pathways across the void.

• This configuration assists natural ventilation; it is not a sealed dehumidification system.

Maintenance

• Vacuum/clean extract valves and inspect duct seals periodically.

• Check the unit for dust and clean as required; replace any internal filter pads if fitted (model dependent).

• Test boost and sensors seasonally; re-verify settings after any changes.

Technical Overview (add datasheet figures when available)

• Type: Central MEV; variants MEV-ECO (variable-speed) and MEV-ECO-CF (constant-flow)

• Motor: EC, continuous operation with boost

• Controls: Light-switch boost, wall switch, timer, PIR, humidistat (model/accessory dependent)

• Ducting: Multiple 100/125 mm inlets; discharge spigot size model dependent

• Electrical: 220–240 V AC, isolate via fused spur

• Mounting: Loft/cupboard/ceiling-void, rubber feet or suspension straps