Zehnder ComfoAir 350

zehnder comfoair 350

The Zehnder ComfoAir 350 is a heat recovery unit designed to enable better and easier specification of ventilation in new properties due to its versatile duct connections. It can be wall or floor mounted and has rotatable spigots to duct vertically or horizontally. 

The ComfoAir 350 boasts an exceptional airflow delivering fresh air to every corner of your home. Its sophisticated control panel allows you to customize ventilation settings according to your preferences, ensuring the ideal air distribution throughout the day. With its whisper-quiet operation, you’ll hardly notice the system working, enabling you to enjoy a peaceful and undisturbed environment. 

It contains features such as its automatic true summer by-pass, high heat recovery efficiency and upgradable high grade filters providing a comfortable, healthy and energy-efficient indoor climate.

Features & Benefits

  • Comfort ventilation for dutys up to 370 m³/h
  • Heat recovery with an efficiency upto 95%
  • Low power consumption thanks to DC motors
  • Automatic 100% summer bypass
  • Frost protection function: efficient even at low temperatures
  • Quick, safe installation and servicing
  • Integrated preheater and humidity control (optional)
  • Wireless remote control and filter replacement indicator
  • Geothermal heat exchanger control
  • Low minimum air volume, specially designed for single family houses
  • Digital Ease or Luxe control unit
  • Suitable for use with the optional ComfoFond-L Eco sub-soil heat exchanger or ComfoCool custom designed cooling unit.

Innovative Modulating Summer By Pass

A summer by pass helps to reduce any contribution to overheating in warmer summer months – once a specific outdoor temperature is reached the bypass is activated to remove heat recovery but still provide fresh air, however does not take into consideration indoor temperature or humidity levels!

The modulating summer by-pass is guided by an optimum comfort temperature for the home utilizing temperature, humidity and an intelligent algorithm to look at both internal and external conditions to provide the optimal temperature.

Zehnder ComfoAir 155WM Summer Bypas

Control Options

All ComfoAir units shall contain the following functions within the unit pre-wired and factory fitted by the manufacturer: 

  • 100% variable supply and extract motor control 
  • 4 Variable speed flow rate set points
  • Automatic filtered summer bypass 
  • Heat exchanger frost protection 
  • Integral service, fault and operation indicators 
  • Control panel PIN protection 
  • Tool free filter access 
  • Variable overrun and delay on timer 
  • Switched live input
  • Volt free contact

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