Nuaire Drimaster ECO 4-Way Boost Switch

Health & Safety Considerations

Work only with safe access, good lighting and a stable step-stool or ladder if needed. Choose a mounting spot outside wet zones and away from direct heat sources.

The switch contains a lithium coin cell; keep new and used batteries away from children and dispose of them responsibly.

Do not open or modify the electronics. If you are unsure about any electrical safety matters in the property, ask a qualified electrician to check before you proceed.

Site Preparation

Decide where the switch will be most convenient in daily use, for example near a kitchen entrance, utility room or landing. The wireless link is designed to pass through typical walls and floors, but range is best with a reasonably clear path to the hallway diffuser.

Avoid fixing directly to large metal surfaces which can screen radio signals, and avoid locations where the switch might be pressed accidentally. Wipe the wall area clean and dry so the adhesive pad bonds well, or have wall plugs and screws ready if using the fixing plate.

Confirm the fan is powered and that you can stand at the diffuser to access its buttons for pairing. The switch is supplied with an adhesive pad, a removable fixing plate and a CR2032 coin cell.

Limitations And Good Practice

Only one wall switch can be paired to the system at a time; do not attempt to use multiple 4-Way switches together. Keep the switch out of bathrooms and away from frequent splashes.

Mount it at a sensible height for all users and where it will not be knocked. If you later relocate the switch, remove old adhesive carefully to avoid wall damage, then check communication and re-pair if necessary.

Step-By-Step Installation

1. Prepare The Switch: If you will screw-mount, release the fixing plate by inserting a small flat screwdriver into the side recess and gently levering until each lug releases; this also exposes the battery compartment. Check the CR2032 cell is seated correctly. Refit the plate until it clicks. If you will use the adhesive pad, leave the liner in place for now.
   
   

2. Fix The Switch To The Wall: For adhesive mounting, peel the liner and press the switch firmly to the prepared surface for several seconds. For screw mounting, offer up the fixing plate, mark and drill pilot holes, fit suitable plugs and screws (not supplied), then clip the switch body back to the plate until it clicks.
   
   

3. Put The Fan Into Pairing Mode At The Diffuser: With the fan powered, stand at the hallway diffuser. If a start-up sequence is showing, press the down button once to exit. Press and hold the up and down buttons together until the display shows the accessory pairing indication, then press down to open the binding window. The display will confirm that the unit is listening for accessories.
   
   

4. Bind The 4-Way Switch: On the switch, press and hold the Boost and Heater Off buttons together for a few seconds until the switch LED flashes green twice to confirm pairing.
   
   

5. Prove The Link: Press Boost once. The switch LED should show green and the fan should run at maximum for a timed purge; the diffuser display will confirm the boost state. Press Normal to return the fan to its commissioned setting. Press Heater Auto to enable automatic tempering on compatible heater models, then press Heater Off to disable it; the diffuser will confirm the heater status change.
   
   

6. Finish And Tidy: Exit pairing by waiting for the binding window to close or by repeating the diffuser button-hold to leave pairing. Wipe away pencil marks and note the installation location and date for your records.

Maintenance

Keep the switch face clean with a soft, dry cloth. Replace the CR2032 battery when button presses no longer produce a green LED or when response becomes intermittent. To change the cell, release the fixing plate, open the battery compartment on the rear, fit a fresh CR2032 observing polarity, and reassemble until it clicks.

Pairing is typically retained after a battery change; if communication is lost, repeat the binding steps. Under normal domestic use the battery life can extend to many years, so frequent changes should not be necessary.

Troubleshooting

If the fan does not respond to Boost and the switch LED shows red, the switch is not paired; reopen pairing at the diffuser and repeat the binding step close to the diffuser.

If the LED shows green but airflow does not increase, confirm the fan is powered, not already in a timed boost, and that the duct and diffuser are unobstructed. If the heater buttons do not change status, check that heater control is enabled at the fan and repeat the test.

For intermittent operation, move the switch slightly nearer the diffuser, avoid mounting on large metal surfaces and replace the battery. If the switch appears dead, fit a fresh CR2032 cell and try again.

Q) What is the Nuaire Drimaster ECO 4-Way Boost Switch (DRI-ECO-4S) and what do its four buttons control?

A) The Nuaire Drimaster ECO 4-Way Boost Switch (DRI-ECO-4S) is a compact, wireless wall controller that lets you operate your RF-enabled Drimaster ECO Positive Input Ventilation system from within the home. It has four clearly labelled buttons. Normal returns the fan to the commissioned background rate chosen at the diffuser, maintaining the gentle positive pressure that combats condensation and black mould. Boost (often referred to as Purge) instructs the unit to run at maximum speed for a timed period to clear moisture, cooking odours and stale air quickly, then the fan automatically reverts to Normal. Heater Auto tells compatible HEAT models to temper the supply air automatically when the set-point at the diffuser calls for it, while Heater Off disables the integral heater entirely for times when you want ventilation without tempering. The Nuaire Drimaster ECO 4-Way Boost Switch is battery powered, pairs at the hallway diffuser in minutes, and gives clear, fingertip control without entering the loft or changing the underlying commissioning.

Q) Which Drimaster ECO units work with the Nuaire Drimaster ECO 4-Way Boost Switch and in what scenarios is it most useful?

A) The Nuaire Drimaster ECO 4-Way Boost Switch is designed for RF-enabled Hall-Control models in the Drimaster ECO range, including heated and NOx-heated variants such as DRI-ECO-HEAT-HC, DRI-ECO-NOX-HEAT-HC, and the DRI-ECO-3S-HEAT-HC. In everyday use it is most helpful wherever short-lived humidity or odour peaks occur and you want fast, room-side control: bathrooms and en-suites (mounted outside wet zones), utility rooms and laundry spaces, kitchens and kitchenettes, and landings serving several rooms. Because the Nuaire Drimaster ECO 4-Way Boost Switch is wireless and battery powered, it is ideal for retrofit and tenanted properties where new cabling would be disruptive. Households with heated Drimaster ECO models benefit from the Heater Auto/Off buttons to balance comfort against running costs seasonally, while all homes gain from easy, on-demand boost that sits alongside the system’s energy-efficient background operation.

Q) How do I install and pair the Nuaire Drimaster ECO 4-Way Boost Switch with my Drimaster ECO fan?

A) Installation is clean and simple. Decide on a convenient position, wipe the wall and either use the supplied high-bond adhesive pad for a cable-free mount or screw-fix the included plate and clip the body on. To pair, stand at the hallway diffuser with the fan powered. Use the diffuser buttons to open the accessory binding window (the display shows it is “listening” for accessories). On the Nuaire Drimaster ECO 4-Way Boost Switch press and hold Boost and Heater Off together for a few seconds; the switch LED will flash green twice to confirm binding. Prove the link by pressing Boost once—on the diffuser you will see the purge indication while the fan runs at maximum for a timed period, then press Normal to return to background. If pairing fails, repeat the steps closer to the diffuser, confirm the CR2032 battery is seated correctly, and keep the switch away from large metal surfaces that can attenuate signals.

Q) Where should I position the Nuaire Drimaster ECO 4-Way Boost Switch for best radio range and day-to-day usability?

A) Place the Nuaire Drimaster ECO 4-Way Boost Switch where you will naturally use it: near a kitchen doorway for cooking, by a utility area for laundry, or on a landing outside bathrooms and bedrooms. Mount at a comfortable height for all occupants and where accidental presses are unlikely. For reliable sub-GHz radio communication, aim for a reasonably clear path to the hallway diffuser and avoid fixing directly onto large metal objects which can screen signals. Keep it out of direct sunlight and away from heaters so the enclosure and adhesive remain stable. In bathrooms, mount outside splash zones; hallways just beyond wet rooms are ideal. Because the control is wireless and slim, it can be relocated if living patterns change—simply remove the original pad carefully, apply a fresh one and re-pair if needed. Good siting means boosts and heater selections are more likely to be used correctly at the right moments.

Q) How do Boost and Normal behave on the Nuaire Drimaster ECO 4-Way Boost Switch, and can I change the boost duration?

A) Boost (Purge) on the Nuaire Drimaster ECO 4-Way Boost Switch commands the fan to run at its maximum airflow for a timed period so steamy showers, laundry and cooking peaks are cleared swiftly across the whole dwelling. Normal returns the system to the commissioned background rate set at the diffuser, maintaining a gentle, quiet positive pressure through the home to dilute humidity and everyday pollutants. The boost duration itself is not set on the wall switch; it is governed by your Drimaster ECO’s Hall-Control commissioning. During setup your installer can adjust the purge time and confirm the display indications at the diffuser so the behaviour fits the property and routine. The design intention is simple: keep background rates modest for energy efficiency and noise comfort, then add a short burst of high airflow only when needed, after which the fan automatically resumes its pre-set background duty without further intervention.

Q) What do Heater Auto and Heater Off on the Nuaire Drimaster ECO 4-Way Boost Switch actually change, and when should I use them?

A) On compatible HEAT models, the heater buttons on the Nuaire Drimaster ECO 4-Way Boost Switch provide everyday control of comfort tempering at the diffuser. Heater Auto enables automatic operation: when the outlet temperature sensor sees the supply air fall below the commissioned set-point, the integral heater modulates to gently lift it, then switches off as soon as the target is met. Heater Off disables tempering entirely, useful in milder weather when you want ventilation but no heat input. These selections are reflected on the diffuser display so you know which mode is live. The temperature set-point itself is commissioned at the diffuser; the 4-Way Switch simply toggles whether that function is allowed to operate. In practice, many households leave Heater Auto active in colder months and select Heater Off in spring and autumn, using boost as required. This keeps comfort predictable while avoiding unnecessary energy use.

Q) What are the energy and comfort advantages of using the Nuaire Drimaster ECO 4-Way Boost Switch with PIV?

A) The Nuaire Drimaster ECO 4-Way Boost Switch supports best practice with Positive Input Ventilation by separating background and peak control. You commission the fan to the lowest effective background rate for quiet, low-energy, 24/7 operation that steadily dilutes humidity and odours; when activities spike moisture or smells, you tap Boost for a short, targeted purge instead of running at high speed all day. On HEAT models, the Heater Auto/Off keys help you fine-tune comfort seasonally without altering airflow settings. This approach reduces the risk of streaming windows and black mould, keeps perceived air freshness higher, and manages running costs sensibly. Because the Nuaire Drimaster ECO 4-Way Boost Switch sits where people live, occupants actually use it—particularly in kitchens, utilities and after showers—so the ventilation response closely follows real life, delivering better results than loft-only controls that are seldom adjusted.

Q) What maintenance does the Nuaire Drimaster ECO 4-Way Boost Switch require and how long does the battery last?

A) The Nuaire Drimaster ECO 4-Way Boost Switch is largely fit-and-forget. Keep the front clean with a soft, dry cloth and avoid solvents or sprays. It uses a standard CR2032 coin cell, included in the box; under typical domestic use the expected service life is up to 10 years. If button presses no longer produce the usual green LED, or the fan response becomes intermittent, release the body from the fixing plate, open the rear battery compartment, fit a fresh CR2032 observing polarity and clip the unit back together. Pairing is normally retained through a battery change; if the link is lost, simply reopen the fan’s binding window at the diffuser and repeat the brief pairing step. Dispose of spent coin cells responsibly and keep new and used batteries away from children and pets. With no wires to inspect and a robust enclosure, upkeep is minimal for homeowners and landlords alike.

Q) Are there any limitations or best-practice tips when using the Nuaire Drimaster ECO 4-Way Boost Switch?

A) A few points ensure trouble-free use. Pair only one wall switch with a given Drimaster ECO system at a time; do not use multiple 4-Way switches together. Mount the Nuaire Drimaster ECO 4-Way Boost Switch outside bathroom splash zones, away from radiators and cookers, and avoid fixing directly to large metal surfaces which can reduce wireless range. Choose a location that won’t be knocked or pressed by passing traffic and keep it at a sensible height for all users. Remember that the wall switch does not alter commissioning values; airflow steps, temperature set-points and purge time are set at the diffuser, so ask your installer to adjust those if the behaviour needs fine-tuning. If you relocate the switch later, remove old adhesive carefully, apply a fresh pad, check radio range from the new spot and re-pair if communication has dropped during the move.

Q) How do I troubleshoot common issues with the Nuaire Drimaster ECO 4-Way Boost Switch after installation?

A) Most issues are simple to resolve. If pressing Boost shows a red LED and nothing happens, the switch is not paired—open the diffuser’s pairing window and hold Boost and Heater Off on the Nuaire Drimaster ECO 4-Way Boost Switch until the LED flashes green twice, then test again. If the LED is green but airflow does not increase, check the fan is powered, not already in a timed purge, and that the duct and diffuser are unobstructed. If heater buttons appear to do nothing, confirm you have a compatible HEAT model and that heater control is enabled at the fan; try toggling Heater Auto then Heater Off and watch the diffuser status. For intermittent response, move the switch slightly nearer the diffuser, avoid mounting on large metal surfaces and fit a fresh CR2032 battery. If all else fails, re-enter pairing at the diffuser and repeat the bind; a clean re-pairing step usually restores reliable operation.

DRI-ECO-4S Installation & Maintenance