Quiet Pack In-Line Centrifugal Single Duct fans - QP

Prices and stock levels correct at the time of printing (08/02/12 20:03)

Overview

The Quiet Pack in-line acoustic fans shall be as supplied from Roof Units, designed around a high performance centrifugal impeller, offering a highly efficient, quiet and compact in-line acoustic fan.

The Quiet Pack fan shall be manufactured from prime quality galvanised sheet steel, for mounting internally as standard or with a special treatment for externally mounting, ensuring a robust in-line fan for those tough site conditions.

Quiet Pack casings shall be internally treated with an ‘O’ class rated acoustic foam, which offers the benefits of excellent low level duct bound and breakout sound levels, in addition self extinguishing properties, zero burn rate, resistant to ignition, and no toxic fumes.

Quiet Pack fans are to be suitable for circular ducting ranging in sizes 100, 125, 150, 160, 200, 250, 315, 400 and 500mm, with air volumes from 0.064m3/s to 1.08m3/s and pressure development of up to 430Pa.

The casing shall be specially designed to allow the unit to be mounted via drop rods or anti vibration mounts, ensuring a quick and easy solution to installation of the Quiet Pack in-line acoustic fans. All manufacturing progressed of the Quiet Pack fan units are computer designed and controlled to BS EN ISO 9001 Standards.

Impellers

The forward curved centrifugal impellers shall be aerodynamically designed, utilising computer technology. The motor and impeller shall be factory matched, statically and dynamically balanced on precision machines, to DIN ISO 1940 Grade 6.3., to give quiet, vibration free running. The aerodynamic blades and motor housing shall be manufactured from prime quality galvanised sheet steel.

Motors

Motor insulation Class B, suitable for operating temperatures from -15ºC to +40°C and atmospheres up to 95% RH.

All sizes are ideally suitable for speed control by electronic or voltage reduction. Roof Units would recommend that a voltage reduction Auto Transformer speed controller is used with all Quiet Pack units to ensure minimum noise levels during speed control and to eliminate any possibility of harmonic noise levels which occur when using electronic speed controllers at lower speeds.

Performance

The fan performance, shall be in accordance with tests to BS848 Part 1 1980, with the fan sound levels, measured in a reverberant chamber in accordance with BS848 Part 2 1985.

Quality Assurance

Design and manufacture shall be in accordance with the standard for quality management systems BS EN ISO 9001:1994.

Accessories

A full range of accessories are available with the Fan Box range of fans such as:

• Auto Transformer Speed Controllers
• Electronic Speed Controllers
• D.O.L. Starters
• Standard, Acoustic & Thermal Flexible Ducting
• Pre-Panel or Secondary Bag Filters
• Electric Heater Batteries
• Backdraught Shutters
• In-Line Attenuators
• Wall & Roof Terminals
• Fast Clamps
• Weatherproofing

Dimensions

PLEASE NOTE

1. Drop rods (up to M8) can be used on the base flange when mounting the unit upside down.

2. AVM’s can be fitted to either side or the base of the unit.

3. An access provision above the lid of each unit, no less than the respective A dimension must be made.

Unit Size	A	B	C	D	E	Approx Weight (kg)
QP100B	268	363	171	272	97	14
QP125B	268	363	171	272	122	14
QP150B	322	400	203	336	147	14
QP160B	322	400	203	336	157	14
QP200B	322	400	203	336	197	20
QP250B	472	614	320	499	247	25
QP315B	530	630	300	560	312	33
QP400B	530	630	300	560	397	50
QP500B	530	630	263	560	497	75

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Features

At a Glance:

‘O’ Class rated acoustically treated casing, ensuring minimum duct and breakout noise levels
Designed to suit duct diameters from 100 to 500 mm
Air volumes up to 1.08m³/s
Suitable for external pressures up to 430Pa
Operating Temperatures from -15°C up to +40°C

FAQs Answered:

Fully Speed Controllable
Quality Assurance to BS EN ISO 9001:1994
Performance tested to BS848 Part 1 1980
2 Year Warranty

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