Scdq Square Inline Centrifugal

• Square design for easy duct flange connection.
• Speed controllable motors available in single phase, three phase and two speed.
• Explosion proof motors availlable in most models. These are not speed controllable.
• Medium to high volume and pressure applications.
• Suitable for mounting at any angle.

FAN DIAMETER

315-630mm

DUTY

up to 4000l/s

PRESSURE

up to 600 Pa

BACKWARD CURVE CENTRIFUGAL

Features of all Models

• Ziehl or ebm impeller / motor assembly.
  Factory assembled and balanced.
  Power units designed for optimum efficien
  Fully speed controllable external rotor mo
  Sealed for life ball bearings.
  High efficiency, low noise backward curve
  centrifugal impeller.
  Perfectly matched to medium / high pressure
  and volume systems.

• Robust galvanised impeller support.
  Minimised installation and maintenance costs.
• Suitable for mounting at any angle.
• Most fans available in SC versions.

Specifications

Housing

Housings of the Inline Centrifugal units are of galvanised steel, with standard connections included to suit either
flexible duct or galvanised steel ductwork.

Impellers

Ziehl or ebm centrifugal backward curve impellers are manufactured from plastic or aluminium for low rotational
mass. The motor / impeller assembly is balanced as a complete assembly to ISO1940 grade G6.3 or better.

Motors

Motors are to be manufactured by Ziehl or ebm and to be of external rotor design. Motor enclosure to feature
IP54 protection. Motor windings are to incorporate class ‘B’ or ‘F’ insulation as standard although class ‘H’ is
available. Motor bearings are to be of maintenance free ball bearing design. Auto-reset thermal contacts are
provided in the larger units. These are either integrally wired or terminated at wiring connection bar.

Testing

Rated Fan performance has been determined by testing to BS848 Pt1 (1998) and DIN24163 1998.
Fan sound data has been determined by testing to AMCA300 or DIN 45635.

Wiring Diagrams

It is the responsibility of the user to connect the thermal contacts where provided in a manner to protect the
motor. Failure to do so will void the warranty on the motor