• Model:SQT250-1ECL

Elta Quietflow Twin SQT250-1ECL

£ 2,037.17 (excl. VAT)

£ 2,444.60 (inc. VAT)

Elta Quietflow Twin SQT250-1ECL

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.
New Multi-mount brackets allow easy mounting in a range of orientations.
Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer.
High efficiency low tonal noise backward curved centrifugal impellers are directly driven by EC external rotor motors, provide low specific fan powers and stepless speed control without tonal noise generation.
Units can be weatherproofed in the factory to allow external installation.
EC motors providing precise speed control via potentiometer, BMS or Elta Fans DCV control. Reduced fan speeds can provide significant cost-savings through lower energy consumption in both mechanical energy of motors and also on the conditioning of replacement air.
Twin Fan Operation
Allowing control for auto changeover and duty share.
Each SQT has a 12 month warranty.
The robust 1.2mm galvanised mild steel sheet casing, is treated internally with a Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining with a fire resistant polymeric coating. The wrap around folded casing is specially manufactured using integral motormounting plates to provide additional rigidity for the casings. Each casing provides spigots to suit standard circular ducting. A removable lid is provided as a standard feature to facilitate ease of maintenance and cleaning.
The twin range of units have an EC external rotor motor fitted as standard. The motor contains sealed for life bearings. Thermal Class of motors to THCL 130 or 155 dependent on size. All motors are suitable for use in ambient air conditions up to +60 ℃. Electrical connection shall be via an IP55 terminal box mounted on the side for easy customer connection.
High efficiency low tonal noise backward curved centrifugal impeller, dynamically balanced to ISO 14694 Grade G6.3 and directly driven by the motor to provide a smooth airflow through the unit.
Units shall be supplied with integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer. Speed control shall be via external potentiometer or0-10V, Auto changeover in the event of fan fail or duty share of run and standby fan shall be via auto changeover panel which is an optional extra.
Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001. All Quietflow SQT units are to be tested to ISO 5801 (airside performance) and BS 848 Part 2 (sound performance).
PDF Files


Data Sheet

1 x NKS-D swirl diffuser v-300 x 300mm1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 1602 x Round ceiling diffuser 250mm4 x TTC-2000 Three phase electric heater controller1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC45/501 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC25/311 x Elta Louvre Shutter - 400mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Helios TSD 3.0 Transformer Speed Control (400v)2 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x Helios VDS-7 Three Phase Transformer 5-Step1 x FU 15 40 Frequency Inverter1 x FU 22 25 Frequency Inverter1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Frequency converter FU 075 14 - IP661 x Circular Ceiling Diffuser - TST 1251 x FU 075 52 Frequency Inverter (IP20)1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 4.0KW2 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FU 15 16 Frequency Inverter1 x ELTA - Three Phase Transformer 10amps1 x Circular Ceiling Diffuser - TST 2001 x Round ceiling diffuser 400mm1 x FRQ5-10A Inverter Speed controller1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 075 04 Frequency Inverter (IP20)1 x Curved Blade Grille 600x600 (2way blow)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Balance S Diffuser - NO RING - 125mm1 x Versio Square Ceiling Diffusers - RS141 x Balance S Diffuser - NO RING - 100mm1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x ELTA - Single Phase Transformer 2amps3 x Round ceiling diffuser 200mm3 x Electronic extractor fan speed controller - FSC 1.51 x Round ceiling diffuser 350mm1 x EC6H - Reversible Group Fan Electronic Controller3 x Round ceiling diffuser 300mm1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 16amps2 x Elta 6 Amp Electronic single phase speed controller with TK2 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 12amps2 x Airvent ceiling fan controller2 x AIRVENT speed control - AIR4019612 x ELTA - Single Phase Transformer 4amps2 x Remote Timer Control - 13512 x COM-32 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2502 x Run On Timer - 5s - 4hrs - RT5A1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B2 x Push Timer Switch - ZA42 x 7 Day Programmable TIMECLOCK1 x TG-K Duct temperature sensor2 x Transformer (silent) speed controller - RE 3.0 Amp3 x ACO8AC/EC AutoChangeover panel2 x Elta ACO Panel 149-ACO14E2 x CONTROL ECOWATT - Basic2 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection2 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5004 x EM30-24 Electro-Mechanical Control Panel1 x EC-Vent Room Unit2 x Speed Controller - REB1-N2 x Speed Controller - REB12 x Elta ACO Panel 149-ACO18B2 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6303 x EM30-24 Control Panel Commissioning Service1 x REB-CVF 0-10v Controller2 x PIR Sensor - PIR22 x Elta Wall Cowl SWC56/632 x QPTW 250C Acoustic Twin Fan with Controller1 x EBM-Papst D4E225-BC01-17 Double inlet2 x Potentiometer EGH 01 - for DDMP Fans2 x ACOAS/ AC/EC Auto Changeover 8Amp2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x EFSC-6N- Single Phase Speed Control3 x EC-Vent control board1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH2 x Mini Diffuser - 100mm1 x Economy Airvent 100mm Fan with Timer1 x Economy Airvent 150mm Fan With Pullcord & Shutters1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3001 x Universal Pipe Fixing Clip1 x RUCK MTP 20, 10K, Speed control1 x DV-ROF-V-225 Roof mounted unit2 x Duct Termination with Mesh - 200mm1 x TD ECOWATT 2000/315 Inline Duct Fan - TD-ECOWATT1 x DV-ROF-V-315 Roof mounted unit1 x Silentub - STUB 1002 x DPD 12PM Delivery Surcharge2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Manrose Window Extractor - WF150AP2 x Vent Axia W300310 Controller Electronic 1.5A1 x D2E-146-AP47-753 x LFBR 315 G4 - Helios Inline Filter Box - 315mm2 x Electrostatic Precipitator - 1H x 3W2 x ACO3TO-ADS-VFC-7.1A1 x AXC TP - 150mm Plastic Centrifugal Inline Fan1 x Same Day Shipping Surcharge - City Sprint1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Helios TSW 1.5 Amp Transformer speed controller1 x TDP-D Pressure Sensor with Display1 x Transformer speed controller - ATC1 - 1.5 Amps1 x Two Speed Switch - REGUL-21 x Envirovent G4 Filter - SL-G4/F71 x ACO 149-ACO1/EDV1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB52 x Transformer (silent) speed controller - RE 5.0 Amp1 x MTS10- extractor fan 3 step switch1 x Systemair Save Connect 2.0 Internet Module1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x UB47- Universal Insulated Terminal2 x SAVE VSR 300 heat recovery unit1 x Silentub - STUB 2001 x CBM 7/7 147w 4P RE-VR1 x Vent Axia Trickle & Boost Switch1 x Slimline 150 High Efficiency, Low Profile Heat Recovery Unit1 x Duct Termination with Mesh - 250mm1 x 18M - 80mm PVC flexible ducting1 x Manrose 150mm - XF150BP1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Helios TSW 7.5 Amp Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-12TK1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Transformer 5 Speed Controller - ATC1-4TK1 x Vent Axia ACM 150 inline mixed flow duct fan1 x DEF-140T Inlet Guard for the CBT-100N1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Vent Axia ACM 125 inline mixed flow duct fan1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Transformer Speed Control - RTRE- 5.0Amp1 x CBS-60 Outlet Flange for CSB/CBT-601 x Speed Controller - REB101 x ELM 25 EX Flexible Cuff for ERM 251 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x ELM 20 EX Flexible Cuff for ERM 221 x REE-2 Electronic Speed Controller1 x CBT-100N Centrifugal1 x Contactor Interface Station - CI91 x Multiflow SMB550/4-1AC1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Speed Controller - REB81 x RDH FLEX-SQUARE - ADH/RDH 04501 x EBM-Papst D3G133-BF05-14 Double inlet1 x DS-2 2-Speed Switch (3 Phase)1 x Compact SCD450/4-1AC1 x Elta - Room Sensor - Temp/Humid/C021 x DDMP 12-12 3F 1810W M6A4 DG01 x PIR Sensor - PIR41 x CBA-100 Inlet Flange for CBT-1001 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR2 x VTR 500 STD Filter Kit1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x CBT-130N Centrifugal ATEX II 3D ExtD 125*C1 x CSB-60 Centrifugal fan1 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x CO2 Room Sensor - CO2-R1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x IR24-P - Presence detector1 x Comefri - TLZ 560 R - High Performance Scroll Fan1 x CBA-160 Inlet Flange for CBT-1601 x CBP-18/18-RC Belt Driven Centrifugal Fans1 x DDMP 07/07 Mounting Flange1 x CBS-100 Outlet Flange for CBT-1001 x Elta SCP400/4-1AC - IP551 x 100mm Round Connector with Damper1 x 125mm Round Connector with Damper1 x MEV Spider Additional Spigots1 x DDMP 10-10 1F 1000W M6A2 DA51 x KRJ - 120 Inlet Guard for CBB/CBT fans1 x Quietflow SQS250-1ECL - Centrifugal Box Fan1 x Chaysol DA 9/9 3 speed1 x Vent Axia T-Series Wall Model TX9WL2 x Quietflow Twin SQTDCV250-1ECL1 x Biflow SB315-CON4-3 - High Temperature Bifurcated Fan1 x Transformer Speed Control - RTRE- 7.0Amp1 x Transformer Speed Control - RTRE- 1.5Amp1 x CBM 9-9 550w 4P VR (Open Motor)1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x MTP 10, 10K, Speed control1 x Vent Axia Silent 100T (TIMER)1 x Speed Controller - REB161 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x CBT-80N Centrifugal1 x Comefri - TLZ 225 R - High Performance Scroll Fan1 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x Duct Termination with Mesh - 100mm1 x Helios VARW 450/4 - TK1 x CBB-60N Centrifugal1 x TD ECOWATT 160/100 Inline Duct Fan - TD-ECOWATT1 x CBT-170 Centrifugal1 x VA 9/2 T - High Temp Axial Fan,1 x Duct Termination with Mesh - 150mm1 x CBM 12/9 CM/AL 1100W 6PT - Closed Motor1 x Biflow SB250-CON4-3 - High Temperature Bifurcated Fan1 x Elta Standard Ambient Flexible Connector - 800mm1 x Purlin Box 630/710 for RAW Cowls1 x CBM 7/9 4p 300W RE-VR1 x CBS-160 Outlet Flange for CBT-1601 x CBT-100N Centrifugal ATEX II 2G Exe II T31 x Duct Termination with Mesh - 400mm1 x DDMP 12-09 1F 1800W M6A4 DA81 x Elta Skyflow SSRL710-1EC1 x DDMP 12-12 3F 5700W M6M0 DG71 x Elta SCP450/4-1AC - IP551 x Elta SLC500/4B-1AC - IP551 x SPI-200 C Iris damper1 x JETLINE-100 ECOWATT - In Line Centrifugal Duct Fan1 x Biflow SB250-CON2-3 - High Temperature Bifurcated Fan1 x DDMP 10-08 1F 1000W M6A2 DA51 x SDD-U Anti Vibration Pads1 x EBM-Papst K3G160-BD02-01 Double inlet1 x Dektite Combo Pipe Flashing - DC210REC1 x ADH E0-250 Flange - 0250 ADHE/RDHE1 x Chaysol da 9-7 - 3 Speed1 x Biflow SB500-CON2-3 - High Temperature Bifurcated Fan1 x MUB 062 630D4 Multibox1 x Biflow SB250-CON4-1 - High Temperature Bifurcated Fan1 x Jet Fan IV 100-4 IE3 Induction Fan1 x Elta SCP630/4-1AC - IP551 x Duct Termination with Mesh - 315mm1 x DT-1 Duct Mounted Thermostat1 x Elta HXP 800mm 6-Pole (Three Phase)1 x Nicotra RDH G2E7-04501 x Manrose 150mm - XF150BHP1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Acoustic Box Fans (Inline) - CAB-1001 x Elta Turboflow-TF - 450mm - Single phase1 x Elta Quietflow Twin SQT150-1ECL1 x REB Ecowatt Speed Control - REB-ECO1 x EB-100N S - Centrifugal Fan1 x Manrose T12 STANDARD Transformer- T12S1 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x DDMP 12-09 FLANGE1 x DDMP 10-10 FLANGE1 x Helios ESA-1 Surface mounted Speed Control 1amp1 x Northern Ireland Pallet Surcharge1 x Filter Box With F7 Grade Bag Filter - 200mm1 x Economy Airvent 150mm Fan1 x High Temperature Flexible Connector - 063-0630-PU2501 x PM230-TF, AC 230V Damper Actuator, Spring Return, 2 x SPDT, 72C Thermal Fuse1 x Speed Controller - REB31 x RDH Flange - 03151 x ENV 100 12v transformer SELV1 x Silent 100 Window Kit - windowS
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