The Whisperblower 125 mm extractor from PrimaKlima, soundproofed and equipped with a thermal regulator, delivers a maximum airflow of 800 m³/h thanks to its 125 mm diameter. With its ball bearings and newly designed blades, it is 2.5 times quieter than most extractors on the market.
Its latest-generation internal design, patented by PrimaKlima, increases ventilation pressure by 20%. The outer casing, made of very high-quality UL94 nylon, helps reduce noise levels by 4 dB while also providing effective resistance to impact and heat.
This extractor is also equipped with a German EBM-Papst AC motor offering a lifespan of over 80,000 hours, ensuring reliable and long-lasting performance.
1. Main Characteristics
- Brand: Prima Klima
- Model: PK125 WHSP EC TC
- Duct Diameter: 125 mm
- Airflow: approx. 800 m³/h
- Motor Type: EC motor (low power consumption, DC)
- Speeds: 1 speed (some EC models are adjustable, but here we are referring to the single-speed version)
- Temperature Control (TC): The WHSP EC TC model may include a sensor/controller to maintain the desired temperature.
- Power Supply: 220-240 V / 50-60 Hz (verify on the nameplate)
- Power Consumption: Lower than a standard (AC) motor, typically 50 W to 100 W depending on the load (varies by EC model).
2. Installation
Q: How do I install the air extractor in a ventilation system?
- Location: Choose an area that is easily accessible for maintenance and with enough space to secure the extractor on a stable surface (wall, ceiling, or support).
- Orientation: Ensure the airflow direction is respected (usually indicated by an arrow or marking on the device).
- Mounting: Use the mounting brackets or clamps designed for this purpose (depending on the model).
- Duct Connection:
- Identify the intake (IN) duct and the exhaust (OUT) duct.
- Tighten the ducts with appropriate clamps to avoid air leaks.
- Electrical Connection:
- Check the required voltage (220-240 V) and ensure proper grounding.
- Connect the extractor to a circuit breaker or suitably rated outlet for safety.
Q: Can the unit be mounted in any position (vertical, horizontal)?
In general, Prima Klima extractors are designed to operate in multiple positions (vertical/horizontal). However, always check the user manual to confirm the recommended orientation.
Q: Do I need a separate speed controller or external thermostat?
- The “EC TC” model often includes an integrated temperature control (ThermoControl). In this case, you can connect the temperature sensor (provided with the unit) and set the desired temperature for the extractor to automatically adjust its speed.
- If you truly have a single-speed version without built-in regulation, verify whether it is compatible with a specific EC motor controller or external thermostat.
3. Usage and Best Practices
Q: How do I set the target temperature on a TC (ThermoControl) model?
- On versions with temperature control (TC), you will find a small box or potentiometer for temperature adjustment.
- Plug in the temperature sensor, place it in the space that needs ventilation, and adjust the potentiometer to the desired level (e.g., 25 °C).
- The extractor will then adjust its speed to maintain the set temperature (within its power limits).
Q: Can the extractor run continuously, 24/7?
Yes. Most EC motors can run continuously without overheating, provided the installation is correct (adequate ventilation, no obstructions, stable voltage, etc.).
Q: Is the noise level significant?
EC motors are generally quieter than traditional models. However, noise level also depends on how the extractor is mounted (vibrations, rigid vs. flexible ducts, etc.).
For quieter operation, it is often recommended to use acoustic ducting, a silencer, or anti-vibration mounts.
4. Maintenance and Safety
Q: What are the maintenance recommendations?
- Regular Cleaning: Remove dust from the fan blades and inside the duct to avoid dirt buildup (which reduces performance).
- Inspection: Regularly check clamps, wiring, and for any unusual vibrations.
- Sensor Check: If your model has a temperature sensor, ensure it is clean and positioned correctly.
Q: Are there any risks of overheating or short-circuits?
Prima Klima EC extractors generally include thermal protection.
- In the event of overheating, the motor will stop or reduce speed.
- It is crucial to follow installation guidelines (sufficient airflow, stable voltage, no blockages in the airflow) and to ground the unit properly.
Q: Can I dismantle the motor myself in case of a breakdown?
It is always recommended to contact the after-sales service or a qualified electrician. Any unauthorized modification or repair could void the warranty.
5. Troubleshooting
Q: The extractor no longer starts—what should I do?
- Check the power supply (outlet, circuit breaker).
- Make sure electrical connections are tight.
- If the model has a temperature controller, verify that the temperature setting is not too low.
- If nothing works, contact customer support or a professional for further diagnosis.
Q: The airflow seems reduced—why?
- The filter or ducting may be obstructed.
- Dust buildup on the fan blades.
- The speed may be lowered if a temperature or speed controller is active.
- Insufficient or unstable voltage supply.
Q: The extractor is louder than before—what should I check?
- Vibrations or loose parts (screws, clamps).
- Motor bearings (bearing noise may indicate a need for maintenance).
- Dust buildup on the blades, causing imbalance.
Conclusion
The PK125 WHSP EC TC air extractor by Prima Klima stands out for its energy-efficient EC motor and integrated thermal control system (TC) to maintain the desired temperature. Its installation is relatively straightforward, provided that best practices are followed (proper orientation, electrical connection, anti-vibration mounting, etc.). Regular maintenance (cleaning, connection checks) is essential to prolong its service life and ensure optimal performance.
