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centrifugal blower fan (backward-curved impeller) with an EC motor. These are commonly used in:
HVAC ventilation systems
Heat recovery units (MVHR)
Air handling units
Commercial extraction systems
Fan coil units and air purifiers
The label shows:
Manufacturer: PSCME
Model: PI2E310140HB2M
230V AC, 50/60 Hz
390 W
1190 RPM
It also has 10 VDC / PWM speed control inputs, which means its speed can be electronically controlled.
The wheel shape with the curved blades is designed to move a large volume of air efficiently and quietly.
In simple terms, it's essentially the motor and fan assembly from a ventilation or air-conditioning system.
If you found it separately and want to know:
What machine it came from
Its approximate value
How to test it
How to wire it up
I can help with that too. A clear close-up of the entire label and any stickers or markings would help identify the exact application.


Based on the label in your photos, I can identify it more precisely.
Model Details
Manufacturer: PSCME
Model: PI2E310140HB2M
Type: EC centrifugal blower fan
Voltage: 230V AC, 50/60 Hz
Power: 390W
Speed: 1190 RPM
Control: 0–10V DC or PWM speed control
What is it used for?
This type of fan is usually found in:
Heat recovery ventilation systems (MVHR)
Air handling units (AHUs)
Commercial ventilation systems
Kitchen extract systems
Industrial air circulation equipment
The 310 in the model number suggests a wheel diameter of around 310 mm.
Approximate Value
Used value depends on condition:
Untested: £30–£80
Tested and working: £80–£200
New equivalent: £250–£500+
Wiring
According to the label:
AC Supply
Brown = Live
Blue = Neutral
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Green/Yellow = Earth
Speed Control
Red = 10 VDC output
Blue = Ground
Yellow = 0–10 VDC / PWM control input
White = FG (tachometer/fan speed signal)
⚠️ Since this runs on mains voltage (230V), it should only be wired and tested if you're comfortable working safely with mains electricity.
What machine did it come from?
The fan itself is generic and could have been fitted by manufacturers such as:
Vent-Axia
Nuaire
Systemair
FläktGroup
S&P (Soler & Palau)
Airflow
Various Chinese OEM ventilation units
If you have all 10 photos, please upload them (or especially any photos showing labels, stickers, or the complete unit it came from). I may be able to identify the exact machine and tell you its likely resale value more accurately.