Zehnder Q350 ERV (350m3/h 200Pa) with enthalpy exchanger

Product Part Number

471502018-Special

Product Overview

The Zehnder ComfoAir Q350 with Enthalpy Exchanger is a high-performance mechanical ventilation with heat recovery (MVHR) unit designed for residential applications. Delivering up to 350 m³/h of airflow, it provides continuous fresh air while efficiently recovering both heat and moisture, helping to maintain indoor comfort and humidity balance throughout the year.

The integrated enthalpy heat exchanger transfers moisture in addition to heat, reducing overly dry indoor air during colder months and improving overall living comfort. The unit features EC motor technology, advanced airflow controls, and a high thermal efficiency of up to 85%, ensuring low energy consumption and quiet operation.

Designed for flexibility, the ComfoAir Q350 supports wall, floor, ceiling, and roof mounting, with reversible left/right orientation and multiple connection options. It is compatible with wired and wireless controls, app operation, Modbus integration, and a wide range of sensors (humidity, CO₂, VOC), making it suitable for both standard and demand-controlled ventilation strategies.

Technical Specification

General

• Manufacturer: Zehnder
• Product: ComfoAir Q350 with Enthalpy Exchanger
• Manufacturer No.: 471502018
• Production Model: COMFOAIR Q350 GB ST ERV
• Housing Material: Steel
• Degree of Protection: IP40
• Weight: 48 kg

Performance

• Maximum Airflow: 350 m³/h
• Max. Air Volume @ 50 Pa: 245 m³/h
• Max. Air Volume @ 100 Pa: 350 m³/h
• Max. Air Volume @ 150 Pa: 350 m³/h
• Max. Air Volume @ 200 Pa: 350 m³/h
• Thermal Efficiency:
  • 85% at 70% air volume @ 50 Pa
• Heat Recovery Type: Cross-counter-flow heat exchanger
• Material of Heat Exchanger: Other

Energy & Electrical

• Energy Efficiency Class (Reg. 1253/2014/EU): A
• Energy Class I: A
• Energy Class II: A+
• Power Consumption @ max. airflow (100 Pa): 0.101 kW
• Supply Voltage: 230 V
• Frequency: 50 Hz
• Amperage: 1.5 A
• Number of Phases: 1
• Fuse Rating: 10 A
• Motor Type: Electronically Commutated (EC)
• Electrical Connection: Connecting cord with protective plug

Acoustics

• Sound Pressure Level: 40 dB(A)

Filtration

• Supply Air Filter: ISO Coarse (ISO 16890-1:2016)
• Exhaust Air Filter: ISO Coarse (ISO 16890-1:2016)
• Filter Efficiency (Supply): 65%
• Filter Efficiency (Exhaust): 65%

Controls & Sensors

• Control Options:
  • Wired control unit
  • Wireless remote control
  • App operation
• Airflow Control:
  • Constant volume flow control
  • Constant pressure control
• Integrated Sensors:
  • Internal humidity (RH) sensor
  • Internal CO₂ sensor
  • VOC sensor
• Sensor Compatibility:
  • External RH sensor
  • Extra CO₂ sensor
  • Extra VOC sensor
• Zone Control: Suitable for and supplied with zone controller
• Communication: Modbus supported
• Display: Integrated digital display

Installation & Connections

• Nominal Duct Diameter: 160–190 mm
• Connection Type: Insert / duct end
• Mounting Options:
  • Wall mounted
  • Floor mounted
  • Ceiling mounted
• Orientation: Left/right reversible
• Residential Connections:
  • Left side
  • Right side
  • Underside
  • Top
• Roof Connections:
  • Top
  • Side
• Additional Features:
  • Integrated bypass
  • Integrated heating element
  • Thermal overload protection
  • Suitable for central heating boiler connection