Zehnder CA155WM−GB ComfoAir 155 WM Heat Recovery Unit



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Product Description

The Zehnder ComfoAir 155 WM is a heat recovery unit designed to enable better and easier specification of ventilation in new properties. It contains features such as its automatic true summer by-pass, high heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.



  • Left or right-hand configuration through software alone, no mechanical alteration required.
  • 100% full and filtered summer bypass.
  • Modern, discreet design.
  • Easy installation to wall, cupboard, or kitchen cupboard.
  • Light to handle.
  • BMS capability.
  • Tool-free filter access.
  • Volt-free contact boost capability.
  • CommissionSMART™ is a commissioning wizard that enables a quick and simple set-up process.
  • SummerSMART™ ensures automatic full by-pass activation providing filtered supply air 365 days a year.
  • TimerSMART™ eliminates nuisance noise and over-ventilation by determining the duration of occupancy and allocating a suitable overrun time.
  • HumidiSMART™ continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.
  • 100% variable AUX speed for use as an away mode, medium speed or purge boost.
  • H 644mm x W 546mm x D 298mm


Manuals & Guides
Zehnder ComfoAir 155 WM HRU Datasheet
Zehnder ComfoAir 155 WM HRU Installation

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