Alpha Supply Series – AD404S
Performance Curve - AD404S
Description
The Alpha Series of supply air roof units have been designed for use in free intake or ducted installations. These robust but lightweight units are fitted with bird mesh as standard to prevent debris and birds entering the building and interrupting motor operation. There are 10 models in the series extending from 200 to 630mm diameter.
Features Robust, corrosion-resistant construction with high performance axial flow impellers.
Large choice of speeds available.
The MV units have durable powder-coated steel blades. The AD/E units have GRP blades as standard with an option of aluminium, nylon or anti-static.
Can be mounted at angles up to 30°.
Some 3-phase motors are 2-speed star/delta design as standard.
Speed-controllable using electronic or auto-transformer controllers.
Construction
Cowls are of UV-stabilised plastic
Steel components have a corrosion resistant finish
MV units have powder-coated galvanised steel impellers
AD/E have GRP blades as standard with an option of aluminium, nylon or anti-static material where required
Bird-mesh guards are fitted as standard
Shutters cannot be fitted.
Motors
Type - MV - external rotor, squirrel cage induction motors
AD/E - squirrel cage induction motors
Electricity supply - 230V, single and 415V, 3-phase, 50Hz
Bearings - sealed-for-life, ball
Speed-controllable using electronic or auto-transformer controllers
Internal Thermal Protection
Auto-reset protection is supplied on all MV units and
manual-reset on the AD/E units.
Testing
Air flow tests to BS848:Part 1 1980
Noise tests to BS848:Part 2 1985
Suggested Specification
The axial roof units shall be of the Alpha Supply Series as designed and manufactured by Fantech Pty Ltd.
The axial impellers shall be of powder-coated galvanised steel or GRP (unless specified otherwise) and driven by speed-controllable motors with integral thermal protection. The impellers run in pressed steel plates ensuring a certifiable performance.
The cowl shall be constructed from UV-stabilised plastic and steel components shall be corrosion protected.
All models shall be fully tested to BS848:Part1, 1980 for air flow and BS848:Part 2, 1985 for noise.Technical Data - AD404S
| Speed [rps] | Avg. dBA @ 3m | kWatts (Input) | Amps | Max.°C | Approx. Weight [kg] |
|---|
| 22 | 52 | 0.37 | 1.4 | 70 | 16 |
Sound Data
| Type | 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K |
|---|
| Inlet | 71 | 72 | 68 | 70 | 69 | 64 | 61 | 56 |
Dimensions
*All dimensions in mm, unless otherwise stated
Ancillaries
