• 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 Push Timer Switch - ZA43 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Time Delay Unit - DT20B1 x Multi Input Run On Timer - 0 - 20min - CFCU2 x CS2 Current Switch1 x TTC-2000 Three phase electric heater controller1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x 7 Day Programmable TIMECLOCK3 x COM-33 x Isolator Switch - ISOSW1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E3 x Systemair Save Connect 2.0 Internet Module1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel2 x TG-K Duct temperature sensor3 x Elta 6 Amp Electronic single phase speed controller with TK1 x ACO 149-ACO1/EDV1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x MWS 1.5 – Transformer Controller With Motor Protection1 x EC-Vent Room Unit2 x Elta Variable Speed Drive IP66 - 0.75KW1 x EM30-24 Control Panel Commissioning Service1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x BEAS-control module1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x MTP 10, 10K, Speed control2 x Isolator Switch - EFF-ISO2 x TG-R room temperature sensor1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EC6H - Reversible Group Fan Electronic Controller1 x Silent 100 Window Kit - windowS2 x Envirovent G4 Filter - SL-G4/F72 x WS - Reversing Switch from Helios Fans1 x Transformer Speed Control - RTRE- 7.0Amp
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

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