• 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

1 x Transformer (silent) speed controller - RE 1.5 Amp2 x CS2 Current Switch1 x Run On Timer - 5s - 4hrs - RT5A1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Push Timer Switch - ZA42 x MV-B Dual Switch for use with Helios HQW plate fans,2 x COM-32 x Isolator Switch - ISOSW1 x Remote Timer Control - 13511 x 204x60mm Insulated Rectangular Vertical 45° Bend2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Helios ZNE Electronic Fan Overrun Timer1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Helios TSW 1.5 Amp Transformer speed controller2 x TG-K Duct temperature sensor1 x Time Delay Unit - DT20B2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x TTC-2000 Three phase electric heater controller1 x Isolator Switch - EFF-ISO1 x CONTROL ECOWATT - Basic3 x TG-R room temperature sensor1 x Elta Variable Speed Drive IP66 - 0.75KW2 x Systemair Save Connect 2.0 Internet Module1 x 7 Day Programmable TIMECLOCK2 x MTP 10, 10K, Speed control1 x Elta ACO Panel 149-ACO18B2 x Elta 6 Amp Electronic single phase speed controller with TK1 x EC-Vent control board2 x BEAS-control module1 x 220x90mm Insulated Rectangular Vertical 90° Bend1 x Envirovent G4 Filter - SL-G4/F71 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x EM30-24 Electro-Mechanical Control Panel1 x Elta ACO Panel 149-ACO14E1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Multiflow SMB550/4-1AC1 x EC-Vent Room Unit
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...