FSU
Filtered Supply Unit
- Durable zinc coated steel housing, powder coated ‘off-white’.
- Designed for in-wall mounting.
- Strong and secure all steel construction.
- Weatherproof inlet grille is standard.
- Powder-coated axial flow fan.
- 3-speed facility, connected on-site.
- G4 filter included as standard, see features for more information.
- AC power supply.
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Overview
The Filtered Supply Unit Series fan has been designed to provide
filtered outside air to a range of applications. Can be wired in
high, medium and low speed and includes a high performance
cross flow impeller.
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Features and Benefits
Design
The unit is designed for in-wall mounting and features a secure all steel construction. It is suitable for areas that are typically serviced by under-ceiling air conditioning units where a direct supply fresh air intake is not possible or practical.
Installation
This unit is designed to be installed flush to the inside wall, except diffuser plate protrusion. Four mounting holes are provided on the internal flange to secure the unit to the inside wall, fasteners are by others. A flashing angle can be provided for external use as an option. A penetration size of 440 x 440mm is required.
Filter
A 420 x 420mm washable filter is provided on the discharge of the fan with a performance classification of G4 as tested in accordance with AS1324.2-2001 and rated as per AS1324.1-2001. These ratings are equivalent to the European 4/5 classification for filters as outlined in EN778. Access is obtained by un-doing four dome nuts on the diffuser panel and then turning four swivel clips.
Protection
An internal auto-reset thermal protection is fitted as standard.
Testing
All units are tested to BS848:Part 1, 1980 (airside performance) and BS848:Part 2, 1985 (sound performance). Performances shown are based on clean filters. As airflow will be affected by room pressurisation, care should be taken to ensure adequate air relief is provided.
Specification
Construction
The FSU Series is constructed with a durable zinc coated steel housing it has a powder-coated ‘off-white’ finish. Integral all steel weatherproof inlet grille providing security.
Motor
The FSU Series fitted with an AC external, squirrel cage induction motor with sealed for life ball bearings. The motor requires an electricity supply of 230V single phase, 50Hz. The Class B motor is rated IP44.
Impeller
The unit features a powerful cross flow impeller.
Control
Supplied with three speed facility, adjusted on site by a wiring change or 3-speed switch.
