MV254E fans - Minivent Series

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Fans

By Mounting Type

Minivent Series – MV254E

Performance Curve - MV254E

Description

The Minivent Series of axial roof units has been designed for use in a wide range of free intake or ducted exhaust air applications. They can be speed controlled and are available in 6 sizes ranging from 112 to 350mm diameter.

Features

Robust, lightweight construction.
Wide choice of speeds for most sizes.
All motors are speed controllable.
Can be used on ducted systems.
Can be mounted at angles up to 30°.
Backdraft shutters can be fitted to fans 250 to 350mm diameter (see Special Note).
Units for supply air applications can be supplied. Refer to Alpha supply range.

Construction

Cowls are of UV-stabilised injection moulded plastic.
The impellers are of powder coated galvanised steel.

Motors

Type - external rotor, squirrel cage induction motors
Electricity supply - 230V, single-phase, 50/60Hz
Bearings - sealed-for-life, ball
Speed-controllable
Motor protection - IP44

Internal Thermal Protection

MV112 and 132 are impedance protected.
MV202 and above are fitted with thermal contacts as standard.

Testing

Air flow tests to BS848:Part1, 1980
Noise tests to BS848:Part2, 1985

Special Note

When backdraft-shutters are used derate the performance by 15-20%.

Suggested Specification

The roof units shall be of the Minivent Series as designed and manufactured by Fantech Pty Ltd.
The axial impellers shall be direct-driven by speed-controllable, external rotor motors with integral thermal protection.
The cowl shall be of UV-stabilised, injection moulded plastic with built-in terminal box.
All models shall be fully tested to BS848:Part 1, 1980 for air flow and BS848:Part 2, 1985 for noise.