• Model:SQS250-1ECL

Quietflow SQS250-1ECL - Centrifugal Box Fan

£ 1,259.39 (excl. VAT)

£ 1,511.27 (inc. VAT)


Quietflow SQS250-1ECL - Centrifugal Box Fan

• Standard size 250 mm
• Air volume flow rates up to 0.347 m3/s
• Static pressures up to 841 Pa
• Suitable for operating temperatures up to +60℃
• Robust galvanised sheet steel casing
Acoustically lined single in-line centrifugal fans, suitable for internal duct mounting. The Quietflow incorporates advanced backward curved impellers, with three ndimensional profiled blades.

Low Noise
Each unit is acoustically lined internally with Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining minimising breakout noise levels.

Easy Installation
New multi-mount brackets allow easy mounting in a range of orientations.

Easy Commissioning
Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer.

Efficient Performance
High efficiency low tonal noise backward curved centrifugal impellers are directly driven by an EC external rotor motor, provide low specific fan powers and stepless speed control without tonal noise generation.

Weather Resistance
Units can be weatherproofed in the factory to allow external installation.

PDF Files


SQS250-1ECL Specification Sheets

3 x Vent Axia ACM 125 inline mixed flow duct fan1 x Run On Timer - 5s - 4hrs - RT5A5 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer2 x CS2 Current Switch4 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x MWS 3 – Transformer Controller With Motor Protection1 x Helios TSW 1.5 Amp Transformer speed controller2 x Isolator Switch - ISOSW1 x TTC-2000 Three phase electric heater controller1 x 7 Day Programmable TIMECLOCK1 x Time Delay Unit - DT20B3 x Systemair Save Connect 2.0 Internet Module1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta 6 Amp Electronic single phase speed controller with TK1 x COM-31 x Remote controller FLEX - for VEKO INT1 x Elta ACO Panel 149-ACO14E1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Elta ACO Panel 149-ACO18B1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x TG-K3/NTC10-01 - Duct temperature sensor2 x WS - Reversing Switch from Helios Fans2 x BEAS-control module1 x EM30-24 Control Panel Commissioning Service2 x Envirovent G4 Filter - SL-G4/F72 x Elta Variable Speed Drive IP66 - 0.75KW1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Helios HQW-200/2 - IP552 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Vent Axia Silent 100T (TIMER)1 x Helios HQW-630/4 - IP551 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x Isolator Switch - EFF-ISO1 x Electronic extractor fan speed controller - FSC 1.51 x CBM 9-9 550w 4P VR (Open Motor)1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Transformer Speed Control - RTRE- 7.0Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x TG-R room temperature sensor1 x Vent Axia T-Series Controller
Reviews
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