S&P IRB/IRT Duct Fan

S&P IRB/IRT Duct Fan: duct fan for rectangular ventilation ducts, as IRB for single-phase or IRT for three-phase, with AC motor or as ECOWATT with EC motor. 17 versions are available under version.

IRB/IRT: S&P IRB/IRT: Duct Fan. Available are 13 versions as well as the sizes 200, 225, 355, 400, 315 and 450.

IRB-315A ECOWATT: S&P IRB-315A ECOWATT is a duct fan for rectangular ducts from the S&P IRB/IRT ECOWATT series with EC motor (1~ 230 V) and a free-running, backward curved aluminium centrifugal impeller. According to the manufacturer, the speed is 100% controllable via the integrated potentiometer or an external 0 to 10 V signal. The galvanised sheet steel casing has standardised duct flange profiles; the motor/impeller unit can be swung out for cleaning and maintenance, and the units can be operated in any axial position.

IRB-315B ECOWATT N8: S&P IRB-315B ECOWATT N8 is a duct fan for rectangular ducts from the S&P IRB/IRT ECOWATT series with EC motor (1~ 230 V) and a free-running, backward curved aluminium centrifugal impeller. According to the manufacturer, the speed is 100% controllable via the integrated potentiometer or an external 0 to 10 V signal. The galvanised sheet steel casing has standardised duct flange profiles; the motor/impeller unit can be swung out for cleaning and maintenance, and the units can be operated in any axial position.

IRT-400 ECOWATT N8: S&P IRT-400 ECOWATT N8 is a duct fan for rectangular ducts from the S&P IRB/IRT ECOWATT series with EC motor (3~ 400 V) and a free-running, backward curved aluminium centrifugal impeller. According to the manufacturer, the speed is 100% controllable via the integrated potentiometer or an external 0 to 10 V signal. The galvanised sheet steel casing has standardised duct flange profiles; the motor/impeller unit can be swung out for cleaning and maintenance, and the units can be operated in any axial position.

Data per version:

Select version and size. Not every combination is available.

• Motor/impeller unit can be swung out for cleaning and maintenance (inspection door) according to the manufacturer.
• IRB/IRT: Rectangular duct connection for installation directly in rectangular ducts.
• IRB/IRT: Motor with thermal contact wired separately to the terminal board; according to the manufacturer, all-pole motor protection is achieved with the MSD-2 motor protection switch (accessory).
• Performance data determined to ISO 5801 and AMCA 210-99 according to the manufacturer.
• IRB-315A ECOWATT: EC motor with integrated speed control: potentiometer on the unit or external 0 to 10 V signal, 10 V output for a setpoint adjuster.
• IRB-315A ECOWATT: Internal thermal contacts in the motor.
• IRB-315A ECOWATT: As control accessories S&P lists, among others, the AIRSENS air quality sensors (carbon dioxide, VOC, humidity), the CONTROL ECOWATT AC/DC and CONTROL ECOWATT BASIC controllers, the DMD-C differential pressure controller, CONTROL EC/T for temperature-dependent control, the SWG and REB-ECOWATT setpoint adjusters and the INTER 4P ECOWATT 3-step switch.
• IRB-315A ECOWATT: As mounting accessories S&P lists, among others, for each size the counter flange IBR, flexible connection IAE, duct silencer IAA, filter box IFL G4 (G4 filter mat) or IFL F (empty housing for IFR filter cassette M5 or F7), electric heating coil IBE, hot water heating coil IBW, louvre damper IJK and weather protection grille IWG, each with the size in the type designation (e.g. IBR-315), plus ISA vibration dampers (4 pieces per packaging unit).
• IRB-315B ECOWATT N8: EC motor with integrated speed control: potentiometer on the unit or external 0 to 10 V signal, 10 V output for a setpoint adjuster.
• IRB-315B ECOWATT N8: Internal thermal contacts in the motor.
• IRB-315B ECOWATT N8: As control accessories S&P lists, among others, the AIRSENS air quality sensors (carbon dioxide, VOC, humidity), the CONTROL ECOWATT AC/DC and CONTROL ECOWATT BASIC controllers, the DMD-C differential pressure controller, CONTROL EC/T for temperature-dependent control, the SWG and REB-ECOWATT setpoint adjusters and the INTER 4P ECOWATT 3-step switch.
• IRB-315B ECOWATT N8: As mounting accessories S&P lists, among others, for each size the counter flange IBR, flexible connection IAE, duct silencer IAA, filter box IFL G4 (G4 filter mat) or IFL F (empty housing for IFR filter cassette M5 or F7), electric heating coil IBE, hot water heating coil IBW, louvre damper IJK and weather protection grille IWG, each with the size in the type designation (e.g. IBR-315), plus ISA vibration dampers (4 pieces per packaging unit).
• IRT-400 ECOWATT N8: EC motor with integrated speed control: potentiometer on the unit or external 0 to 10 V signal, 10 V output for a setpoint adjuster.
• IRT-400 ECOWATT N8: Internal thermal contacts in the motor.
• IRT-400 ECOWATT N8: As control accessories S&P lists, among others, the AIRSENS air quality sensors (carbon dioxide, VOC, humidity), the CONTROL ECOWATT AC/DC and CONTROL ECOWATT BASIC controllers, the DMD-C differential pressure controller, CONTROL EC/T for temperature-dependent control, the SWG and REB-ECOWATT setpoint adjusters and the INTER 4P ECOWATT 3-step switch.
• IRT-400 ECOWATT N8: As mounting accessories S&P lists, among others, for each size the counter flange IBR, flexible connection IAE, duct silencer IAA, filter box IFL G4 (G4 filter mat) or IFL F (empty housing for IFR filter cassette M5 or F7), electric heating coil IBE, hot water heating coil IBW, louvre damper IJK and weather protection grille IWG, each with the size in the type designation (e.g. IBR-400), plus ISA vibration dampers (4 pieces per packaging unit).

¹ Sound pressure level radiated by the casing, measured at 1.5 m distance in free field at curve point 2 according to the S&P data sheet. Airflow free-blowing. Performance curves and sound power spectra are given in the S&P data sheet.

¹ Values at 10 V control voltage (maximum speed), airflow free-blowing. Values for 4, 6 and 8 V, performance curves and sound data are given in the S&P data sheet.