Zehnder ComfoAir Q450 ST

SKU: 471502019

Sale price£3,067.65 inc VAT

Dwelling Size – up to 300m2
Thermal Efficiency – up to 96%
Controls by Optional Cable, Wireless, Internet
Automatic, 100% Summer Bypass
Automatic Smart Frost Protection
Optional Built-In Post Heater (EPH Models)
Passive House Approved (when equipped with Post Heater)
2 year warranty


The Zehnder ComfoAir Q, with state of the art design and intelligent technology, regardless of whether you are working on a new build or an old building, with Zehnder comfortable ventilation you have an innovative, tried and tested complete system. It contains features such as its automatic modulating true summer by-pass, world class heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.

  • World class 96% efficiency.
  • 100% full and filtered modulating summer bypass.
  • Left or right hand configuration through software alone, no mechanical alteration required.
  • Commissioning wizard for a quick and simple set-up process.
  • Flow control to maintain commissioned flow rates.
  • Adaptive comfort technology.
  • Automatic passive temperature boost in summer.
  • Humidity boost continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.
  • Tool free filter access.
  • ISO ePM1 65% (F7) filter option.

Zehnder P/N 471 502 019

Dwelling Size180
Dimensions850 x 725 x 570
Connections MM4 x 180
Condensate Discharge32mm
Air Flow@ 100PA350 m3/h
Sound Level @3M (DBA)30.8
Thermal EfficiencyUp to 96%
Max Power Consumption177w
Frost ProtectionAutomatic
Summer BypassAutomatic
Filter Class2 x G4 or 1 X G4/1 X G7
ControlsOptional Cable, Wireless, Internet
IP RatingN/A
Running ModeContinuous
Parts Guarantee2 Years
Motor Guarantee2 Years
SAP-Appendix QYes
Passive HouseYes - with pre-heater
(ERP) Directive 2016 RatingA+

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