Technical data

Precision Air Conditioning
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Precision Air Conditioning
Technical Manual : 6258867 F 07/2012
11
General Description
OPTIONAL EXTRAS - GENERAL
97mm, pleated disposable panel filters conforming to BS EN 779-F6. Protected by 22mm,
disposable, synthetic type pre filters conforming to BS EN 779 G3.
High Efficiency
& Pre Filters
(Except Sizes 35, 55, 90 &
95)
To maintain design ESP, fan selection may alter with high efficiency filters, please refer to
General Specification.
Where higher external static pressure is required units can be fitted with the traditional
belt and pulley, separate fan and motor assembly.
Double inlet forward curved centrifugal fan(s) with galvanised impellers and casing.
Mild steel fan shaft with lifetime lubricated ball bearings.
Fan and drive assembly design is based on a minimum of 25,000 hours life expectancy.
Each fan is separately driven by a high efficiency air cooled motor through a pulley and
‘V’ belt drive. The complete motor assembly is mounted on a fully adjustable platform for
belt tensioning. Motor specification conforms to Efficiency Class 2 (EFF1 (IE2)).
Fan motors up to 2.2kW use adjustable pitch pulleys on the motor with a fixed pitch pulley
on the fan shaft, 3kW fan motors and above use fixed pitch pulleys to both the fan motor
and fan shaft to vary air volumes.
Fan & Motor Assembly
(Sizes 9 - 19)
Fan(s) from 4kW and above have twin belt drives and plummer block bearings.
Larger & Next Larger
Fan Motor
Motor specification conforming to Efficiency Class 2. For applications where higher static
air pressures are required, a larger motor size can be fitted to replace the standard motor.
Belt and pulley fan and motor assemblies only.
High efficiency motors can be fitted that operate at lower running currents providing the
benefit of lower running costs.
Conform to Efficiency Class 1 (EFF1) according to EN60034-2.
High Efficiency Fan
Motors
For technical data, please contact Airedale.
Higher External Static
(Sizes 9 - 55)
A higher external static can be achieved on standard configuration front return air models
by replacing the louvred front grille with an egg crate type, for technical data please refer
to Airedale.
GENERAL