Zehnder ComfoAir 155 CM


Zehnder ComfoAir 155 CM MVHR unit. Available online today.


The Zehnder ComfoAir 155 CM is a ceiling mounted MVHR unit with an automatic true summer by-pass, high heat recovery efficiency and integrated humidity sensor.

Key features of Zehnder ComfoAir 155 CM:

  • Left or right hand configuration (done through software, no mechanical alteration needed).
  • 100% full and filtered summer bypass.
  • Light, and easy to install to a wall or cupboard.
  • BMS capability.
  • Tool free filter access.
  • Volt free contact boost capability.
  • Quick and simple set-up process via CommissionSMART™ commissioning wizard.
  • ensures Automatic full by-pass activation via SummerSMART™, giving filtered supply air all year round.
  • Nuisance noise and over-ventilation is eliminated via TimerSMART™, which determines lengths of time of occupation and allocates a suitable overrun time.
  • Humidity levels are constantly monitored by HumidiSMART™, which detects spikes in humidity and boosts the unit.

Technical specification

  • Maximum Flow Rate: 278 m3/h | 77 l/s
  • Reference Flow Rate: 195 m3/h | 54 l/s
  • Thermal Efficiency: 91%
  • Spigot Size: 125mm

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