Vent-Axia Va100xht Axial Extract Fan User Manual
Model: 251510
Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Vent-Axia Va100xht Axial Extract Fan with Humidity Sensor. Please read this manual thoroughly before installation and use to ensure safe and efficient operation.
Safety Information
WARNING: Electrical installation should only be carried out by a qualified electrician in accordance with national wiring regulations.
- Always disconnect the power supply before attempting any installation, maintenance, or repair.
- Ensure the fan is correctly earthed where applicable, and all wiring connections are secure.
- Do not operate the fan with damaged wiring or if the casing is compromised.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
Product Overview
The Vent-Axia Va100xht is an axial extract fan designed for bathrooms and other wet areas, featuring an integrated humidity sensor and an adjustable run-on timer. It is engineered to automatically manage ventilation based on ambient humidity levels and can also be linked to a room's lighting circuit.
Image: Front view of the Vent-Axia Va100xht Axial Extract Fan. The fan features a white square grille with horizontal slats and a circular spigot on the left side for duct connection. The "Vent-Axia" logo is visible in blue text on the bottom right of the fan's face.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 251510 |
| Power Supply | 230/240V AC 50Hz |
| Extraction Rate | 30 litres per second / 107 cubic metres per hour |
| Power Consumption | 18 watts |
| Sound Output | 36dB(A) @ 3m |
| Dimensions (H x W x D) | 156mm x 156mm x 47mm (beyond installed surface) |
| Spigot Diameter | 98mm (for 100mm / 4 Inch ducting) |
| Timer Adjustment | 3 - 35 minutes |
| Insulation Class | Class II - double insulated |
| IP Rating | IPX4 |
| Mounting Type | Wall or Ceiling Mounted |
| Special Features | Humidity Sensor, Automatic Back Draught Shutters |
Setup and Installation
Proper installation is crucial for the fan's performance and safety. Refer to the detailed wiring diagram provided with the product packaging for specific connections.
Electrical Connection Requirements:
IMPORTANT: The fan requires a permanent live, a switched live, and a neutral connection (3 wires excluding earth) at the fan position for the timer functionality to operate correctly. Without a switched live, the fan will operate solely in humidity sensor mode.
The fan must be permanently connected to an unswitched supply in all installation scenarios.
Mounting:
The Va100xht fan can be installed on either a wall or a ceiling. Ensure the mounting surface is flat and secure. The fan is designed for use with 100mm (4-inch) diameter ducting.
Ducting:
Connect appropriate 100mm diameter ducting to the fan's spigot. Ensure ducting runs are as short and straight as possible to maximize airflow efficiency. Seal all ducting connections to prevent air leakage.
Operating Instructions
Humidity Sensor Operation:
The integrated humidity sensor continuously monitors the ambient humidity. When the humidity level in the room exceeds a pre-set threshold, the fan will automatically activate. It will continue to run until the humidity drops below the threshold, after which it will operate for the duration of the pre-set run-on timer.
Light Switch Operation:
If wired with a switched live connection, the fan can also be activated in conjunction with the room's light switch. When the light is switched on, the fan will start. When the light is switched off, the fan will continue to run for the duration of the pre-set run-on timer.
Timer Adjustment:
The run-on timer is adjustable from 3 to 35 minutes. To adjust the timer, carefully remove the front grille (refer to installation instructions for access) and locate the timer adjustment screw. Use a small screwdriver to turn the screw to increase or decrease the run-on time. Test the setting before re-securing the grille.
Maintenance
Regular cleaning will ensure optimal performance and longevity of your Vent-Axia fan.
- Disconnect Power: Always switch off and isolate the electrical supply to the fan before any cleaning or maintenance.
- Clean Exterior: Wipe the exterior casing and grille with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals.
- Clean Impeller: Carefully remove the front grille (as per installation instructions). Gently clean any dust or debris from the fan impeller blades using a soft brush or vacuum cleaner. Ensure no moisture enters the electrical components.
- Reassemble: Once clean and dry, reattach the front grille securely.
- Frequency: Clean the fan at least once every three months, or more frequently in dusty or high-humidity environments.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not operate. | No power supply. Incorrect wiring. Humidity level not met (if in humidity mode only). | Check circuit breaker/fuse. Verify wiring connections (consult electrician). Increase humidity or test with light switch (if wired). |
| Fan runs continuously. | Humidity sensor set too low or faulty. Timer set too long or faulty. Switched live permanently on. | Adjust humidity sensor setting. Adjust timer setting. Check light switch wiring (consult electrician). |
| Reduced airflow/noisy operation. | Blocked grille or impeller. Ducting obstruction. Loose mounting. | Clean grille and impeller. Check ducting for blockages. Secure mounting screws. |
| Humidity sensor not responding. | Sensor faulty. Incorrect wiring (no permanent live). | Contact Vent-Axia support. Verify wiring (consult electrician). |
If the problem persists after attempting these solutions, please contact a qualified electrician or Vent-Axia customer support.
Warranty and Support
For warranty information, please refer to the documentation supplied with your product or visit the official Vent-Axia website. Keep your proof of purchase for warranty claims.
For technical support or spare parts, please contact Vent-Axia customer service through their official channels. When contacting support, please have your model number (251510) and purchase date available.
