ComfoAir 70
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Decorative radiators Comfortable indoor ventilation Heating and cooling ceiling systems Zehnder ComfoAir 70 Technical specification for decentralised comfort ventilation unit

Zehnder ComfoAir 70 is a decentralised comfort ventilation unit with heat and humidity recovery using synchronous supply and extract air operation. It is often used in apartment renovations as well as in new residential builds. The comfort ventilation unit is particularly suited for one- and two-room apartments, vacation and student apartments. An additional room can be connected to the adjoining room connections for supply or extract air using Zehnder air distribution (optional). An enthalpy exchanger, which ensures a high degree of heat and humidity recovery, is standard on the unit,...

Article number Reveal module for ComfoAir 70 Frost protection From -5 to -15 °C, unit then switches to standby mode Round wall mounting pipe made of plastic, Ø 250 mm, length = 600 mm 4 fan speeds, standby, filter and fault message, shutters seal automatically in standby mode, optional sensor control by means of humidity, VOC and CO2 sensor Round wall mounting pipe made of plastic, Ø 250 mm, length = 900 mm Square wall mounting pipe made of EPP, 268 x 268 (W x H), length = 600 mm Extension set for ComfoAir 70, made of EPP, external diameter 250 mm, length = 300 mm Sealing tape for Zehnder...

Fans Supply and extractor fans are driven by energy-efficient EC direct-current motors. The radial fans are resistant to wind loads. The unit operates very quietly due to the arrangement of the fans in the wall opening and the use of a special insulation material. The fans can be set to any of four speeds. Filters Standard equipment on ComfoAir 70 includes supply and extract air filters ISO Coarse ≥ 70% (G4). After the expiry of a certain interval, an indicator on the control panel indicates that the filter must be replaced. The filters should then be replaced as soon as possible. A Class...

Tender specification Zehnder ComfoAir 70 is a decentralised, compact comfort ventilation unit with heat recovery and a large enthalpy exchanger. The ventilation unit is perfectly suited for use in the renovation of one- and two-room apartments, student and vacation apartments, and for new builds. The housing is made of powder-coated aluminium and is designed without thermal bridges. The interior lining is made of expanded polypropylene (EPP) to provide heat and sound insulation. The outside wall panel is made of high-quality plastic and can be painted over to match the colour of the wall....

Operation data Volume flow [m³/h] Thermal efficiency [%] Humidity efficiency [%] Pressure loss graph Energy efficiency classes Energy efficiency classes in accordance with EU Regulation no. 1254/2014. Energy efficiency classes The control is integrated in the ventilation unit E nergy efficiency class applies in combination with one or two adjoining room connections. Energy efficiency class B without adjoining room connection Humidity and CO2 sensor board 527 007 280 Control according to site requirements Humidity and CO sensor board 527 007 270 Article number Humidity sensor board 527 007...

Dimensional drawings Square structural  shell Structural shell set round L = 600 mm (also available with L = 900 mm)   Square structural shell Reveal module

ComfoAir 70 Declaration of Performance Product data sheet for RVUs as per EU Regulation No. 1254/2014 Contains information requirement for RVUs as per EU Regulation No. 1253/2014 Room ventilation unit Zehnder ComfoAir 70 Supplier’s name or trademark Supplier’s model identifier SEC [kWh/(m²a)] specific energy consumption (cold, average, warm) Zehnder Group ComfoAir 70 (without adjoining room connection) -66.4 -32.9 Type of ventilation unit Type of drive installed Multi-stage drive Speed control Thermal efficiency [%] Maximum air volume flow rate [m³/h] Electric power input [W] Sound power...

ComfoAir 70 Declaration of Performance Product data sheet for RVUs as per EU Regulation No. 1254/2014 Contains information requirement for RVUs as per EU Regulation No. 1253/2014 Room ventilation unit Zehnder ComfoAir 70 Supplier’s name or trademark Supplier’s model identifier SEC [kWh/(m²a)] specific energy consumption (cold, average, warm) Zehnder Group ComfoAir 70 sensor technology Zehnder Group ComfoAir 70 sensor technology (1 adjoining room connection) (1 adjoining room connection) (2 adjoining room connection) (2 adjoining room connection) Type of ventilation unit Type of drive...

Z_SI_V1118_CSY_TES_TS126, en, subject to change without notice Zehnder Group Deutschland GmbH · Sales International · Almweg 34 · 77933 Lahr · Germany T +49 7821 586-392 · F +49 7821 586-406 international.sales@zehndergroup.com · www.international.zehnder-systems.