User Manual for Vent-Axia Lo-Carbon Revive Extractor Fan

Quick guide from the manual

The Vent-Axia Lo-Carbon Revive is a continuous or intermittent extract fan designed for kitchens, utility rooms, bathrooms, and toilets. Installation must be performed by a qualified person in accordance with current I.E.E. regulations. The fan features an LED display for configuration, adjustable boost settings, and humidity triggers. Always isolate the power supply before installation or maintenance.

Description

The Revive fan is a filterless unit capable of wall, window, or panel/ceiling mounting. It includes an integrated LED display for commissioning and monitoring. SELV models include a transformer that must be installed away from water spray and heat sources.

Installation

Siting: Do not install in areas with excessive grease, corrosive gases, or ambient temperatures outside the -5°C to 40°C range. For ducted fans, install a condensation trap and slope horizontal ducts slightly downwards away from the fan.

Mounting:

• Panel/Ceiling/Interior Wall: Cut a 105mm diameter hole.
• Exterior Wall: Cut a 117mm diameter hole and insert the wall sleeve, sloping it downwards.
• Procedure: Loosen the screw at the bottom of the grille, remove the grille, mark screw centers, drill, plug, and screw the back plate into position. Ensure the impeller rotates freely before replacing the grille.

Wiring

The fan is a Class II double-insulated product and must not be earthed. Ensure the mains supply complies with the rating label. Use a local isolator switch with at least 3mm contact separation. Follow the specific wiring diagram (Fig 1-6) corresponding to your model and installation type (e.g., continuous trickle with boost, SELV models).

Setup and Commissioning

To configure the fan, remove the grille to access the control board. Do not isolate the power during configuration. Use the three buttons (+, -, X/Mode) to navigate the menu:

• Display rotation (r-n): Default or rotated 180 degrees.
• Intermittent (I-n/I-y): Enable or disable intermittent operation.
• Trickle mode (t09): Adjust airflow from 6 to 13 l/s.
• Kitchen/Bathroom mode (b-n/b-y): Sets default boost speeds.
• Ducted/Wall/Window (d-n/d-y): Adjusts for system pressure.
• Boost time (b15): Adjustable from 1 to 30 minutes.
• Humidity trigger (h60): Adjustable from 50% to 70% relative humidity.
• Comfort mode (c-n/c-y): Prevents nuisance boosting.
• Lock feature (unl/Loc): Prevents unauthorized adjustment.

Pull Cord and Data Logger

Pulling the cord activates boost 1, a second pull activates boost 2, and a third cancels the boost. Holding the Mode button for 5 seconds accesses the data logger, which displays total run time, energy usage, and humidity-boosted run time.

Servicing and Maintenance

The fan has sealed-for-life bearings and requires no lubrication. Periodically inspect the fan and clean the inlets and front face with a damp cloth to prevent dirt build-up. Always isolate the power supply before cleaning.

Troubleshooting

If the fan runs continuously in boost, check if the room is damp or recently decorated (may take 2 weeks to stabilize) or if the humidity set point is too low. If the fan fails to boost when humidity is high, increase the sensitivity by lowering the humidity set point. If water drips from a ceiling-mounted fan, install a condensation trap in the ducting.