Manrose Centrifugal Fan - PIR Sensor
Best current price£83.45from OnBuy.com
Best offers
Shopping.co.uk recommended and popular offers
OnBuy.com£83.45Visit shop Manrose Cf100pir Centrifugal Pir Sensor Control Fan 5020953550600
Visit shopOnBuy.com£83.45Visit shop All Offers
2 offers from £83.45
View price history by clicking the chart icon.
OnBuy.comManrose Cf100pir Centrifugal Pir Sensor Control Fan 5020953550600
Free delivery in 1–3 days
£83.45
Visit shop
Manrose Cf100pir Centrifugal Pir Sensor Control FanFree delivery in 1–3 days£83.45Visit shop →
Product Information
Full details
The Manrose CF100PIR is a powerful, quiet, and vibration-free centrifugal fan designed for effective ventilation in bathrooms, toilets, cloakrooms, and utility rooms. It excels at moving air over long distances, maintaining performance against ducting resistance. Its key benefit is the integrated PIR sensor with an adjustable timer for automatic operation when occupancy is detected, requiring no switched live. A minor caveat is the installation requirement to be at least 1.8 meters from the floor and out of reach of a shower or bath.
All features
| Model Part Number | CF100PIR |
|---|---|
| Brand | Manrose |
Extended Product Information
FAQs
What is the purpose of the PIR sensor?
The PIR (Passive Infrared) sensor detects movement and heat within its range, automatically turning the fan on when the room is occupied.
How long does the fan stay on after the room is vacated?
The fan's run-on time is adjustable from 1 to 20 minutes, controlled by the timer setting. It will continue to run for the set duration after no further motion is detected.
Does this fan require a switched live connection?
No, the CF100PIR model does not require a switched live connection. It operates independently via the PIR sensor and its internal timer.
What is the recommended duct size for this fan?
The fan is designed for use with standard 100mm (4-inch) rigid or flexible ducting.
Can I install this fan in a shower cubicle?
No, the fan must not be accessible to a person using a shower or bath. It should be mounted at least 1.8 meters from the floor and outside the immediate splash zone.
Do I need to earth this fan?
No, the CF100PIR is double insulated and does not require an earth connection.
What is the noise level of the fan?
The fan operates quietly with a noise level of 42.0 dB(A).
Troubleshooting
Fan does not turn on automatically
Ensure the fan is correctly wired and the power supply is active. Check that the PIR sensor has a clear line of sight and is not obstructed. Verify the adjustable timer setting is not set to zero.
Fan runs continuously
Check the adjustable timer setting; it may be set to the maximum duration or there may be continuous motion detected by the PIR sensor. Ensure there are no heat sources near the sensor that could be misinterpreted as occupancy.
Fan is noisy or vibrating
Ensure the fan is securely mounted and the ducting is properly attached without kinks or obstructions. Check for any foreign objects that may have entered the fan housing.
Reduced airflow
Check the ducting for blockages or kinks. Ensure the non-return flap is not stuck and is opening freely. Clean any accumulated dust from the fan blades and discharge spigot.
Pros and Cons
Pros
- Automatic operation via PIR sensor reduces user interaction.
- Quiet and vibration-free performance enhances comfort.
- Effective in overcoming resistance from long duct runs.
- Durable and easy-to-clean ABS construction.
- Low maintenance due to long-life, pre-oiled motor bearings.
- Prevents backdraughts with the integrated non-return flap.
Cons
- Requires specific installation height and location to comply with safety regulations.
- PIR sensor range and sensitivity may vary depending on room layout and heat sources.
- Does not require a switched live, which might be a consideration for some installation types.
- Requires a double pole isolating switch with a 3A fuse.
Setup, Compatibility & Care
Setup:
- Mounting: The fan must be mounted a minimum of 1.8 meters from the floor and must not be accessible to a person using a shower or bath. Ensure the chosen location is suitable for ducting.
- Ducting: Connect a 100mm / 4" rigid or flexible duct to the discharge spigot. Ensure a secure connection to prevent air leaks.
- Wiring: This fan is double insulated and does not require an earth connection. All wiring must comply with current IEE regulations. A double pole isolating switch with a minimum 3mm contact separation in all poles and a 3A fuse must be used. Note: The fan does not require a switched live connection as it is PIR activated.
Compatibility:
- Duct Size: Compatible with standard 100mm (4-inch) rigid or flexible ducting.
- Electrical: Operates on 220-240V AC, 50Hz. Requires a 3A fused double pole isolating switch.
Care:
- Cleaning: The fan housing is made from high-impact ABS thermoplastics, which can be cleaned with a damp cloth. Avoid using abrasive cleaners or solvents.
- Filters: While this model does not explicitly mention filters, regular inspection of the fan blades and discharge spigot for dust build-up is recommended. Gently wipe clean with a dry or slightly damp cloth if accessible.