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OnBuy.com£40.45Visit shop Manrose Primeline Pef4321 In-Line Extractor Fan With Timer 100Mm / 4 Inch
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This Manrose PEF4321 inline extractor fan is designed for homeowners seeking an effective ventilation solution for shower cubicles and similar small, enclosed spaces. Its key benefit is the remote mounting of the motor, which significantly reduces noise within the room while ensuring compliance with Zone 1 regulations. A potential consideration is the requirement for specific wiring (permanent live, switched live, and neutral) for the timer function to operate correctly.
| Model Part Number | PEF4321 |
|---|---|
| Brand | Manrose |
Yes, this fan is suitable for small rooms like standard toilets (WCs) or cloakrooms, provided adequate ventilation is needed and the installation requirements are met.
The overrun timer is typically adjusted by a small dial or screw located on the fan unit itself. This adjustment is usually made during installation and requires access to the fan unit in the loft.
Zone 1 is the area around a shower or bath. Electrical equipment installed in Zone 1 must be specifically rated for this area, which this Manrose fan is, due to its remote motor.
Due to the specific wiring requirements (permanent live, switched live, neutral), it is highly recommended to use a qualified electrician to ensure safe and correct installation, especially for the timer function.
The kit includes 3 meters of 100mm diameter flexible ducting. While longer runs might be possible with different ducting, performance may be reduced, and it is not covered by the standard kit.
The sound volume is rated at 41 dB(a) measured at 3 meters distance. This is considered a relatively quiet operation for an extractor fan.
The kit typically includes the inline extractor fan with a built-in timer, an exterior grille, 3 meters of 100mm flexible ducting, an interior grille, and securing ties.
Verify that the power supply is connected correctly (live, switched live, and neutral for timer function). Check the circuit breaker and ensure the switch controlling the fan is functional.
Check the wiring connections, particularly the switched live. Ensure the overrun timer is not set to its maximum duration if continuous running is not desired. Reset the timer setting if necessary.
Inspect the interior and exterior grilles for blockages. Check the flexible ducting for kinks, crushes, or obstructions. Ensure the fan unit itself is clear of debris.
Confirm that the fan has the required permanent live, switched live, and neutral connections. The timer will not operate without all three. Adjust the timer setting if it has been set to zero or minimum.
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