air2air with heat Recovery
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Heat Recovery

PROVEN TECHNOLOGY In recent years, commercial buildings of all types have become increasingly well insulated to maximise energy efficiency. This makes them more cost effective to heat and run. However, it can have a negative effect on the indoor air quality. Good ventilation is essential to prevent this, but if it is not carefully controlled, it can lead to heat loss and increased energy consumption. Biddle’s proven ventilation system with heat recovery pre-heats clean, fresh air as it enters the building using the energy/warmth from the air that is vented out. As a result, it is not only...

EFFICIENT HEAT RECOVERY APPLICATIONS Suitable for all types of commercial buildings, Biddle’s heat recovery technology has been proven at hundreds of sites throughout Europe. From supermarkets, hypermarkets, department stores and DIY outlets, to hotels, schools, restaurants, sports halls, logistic centres and warehouses. HOW IT WORKS The Biddle unit improves air quality and reduces energy consumption using counterflow heat recovery technology. Waste heat is extracted from warm, polluted air as it leaves the building and transferred to cool fresh air as it flows in. The unit can work in...

COMPLETE CLIMATE CONCEPT Four models are available, the air2air HR12 (1200m3/h), HR25 (2500m3/h), HR35 (3500m3/h) and the HR45 (4500m3/h). All these units can be used as a standalone solution in conjunction with a duct system in the building, or as part of a complete Biddle climate system together with: T he NOZ Range of energy-efficient air heater & coolers, which provide comfort in large rooms with high ceilings C omfort Circle Cassettes, which combine heating, cooling & ventilation in one ceiling unit are ideal where a false ceiling is in place T he Biddle range of air curtains and fan...

COMPACT, MODULAR DESIGN The modular design of Biddle’s air2air units make them a fitting solution for all types of application. No matter how limited the space, you are assured of maximum performance. FEATURES AND BENEFITS O Fits into very compact spaces O Can be recessed or fitted below the ceiling O High-performance stepless EC fans O Low installation height (minimum 2.7m to underside of unit) O Easy to clean and replace components O Plug & play site wiring O Easy to install

OPERATING MODES AVAILABLE* The air2air HR12, 25, 35 and 45 units have a number of operating modes available: FULL HEAT RECOVERY SMOKE EXTRACTION Warm, polluted air is drawn through the system to be exhausted to the outside and cold, fresh air is distributed throughout the building. In the event of a fire, the unit will extract smoke for a limited period*** Heat from the outgoing air is transferred to the incoming air, saving energy and CO2. A constant temperature is maintained with the HC6 heating and cooling module. RECIRCULATION When CO2 levels are low and fresh air is not required, air...

The user-friendly b-touch control panel can be used to switch the unit on and off, adjust the room temperature and change situation specific settings. air2air units feature built-in intelligence, which means they can also function without the b-touch control. When this is the case, the control panel is only required for servicing purposes. KEY FEATURES: olManual and auto mode (^Programmable timer olTouchscreen control olstatus display olMulti-language navigation menu (11 languages) olScreen security with personal PIN code olPersonalised branding o ANALYSIS TOOL The b-touch's built-in USB...

Technical Details

SAVINGS AND EFFICIENCY The air2air HR12 contains two energy saving EC fans – a Supply fan and an Extract fan. You can see the airflow performance of the fans below. The airflow performance is a combination of air volume (m3/h) and external pressure (Pa). Using these graphs you can select the control voltages of the fans for the units. HEAT RECOVERY OUTPUT HEAT RECOVERY EFFICIENCY – DIN EN13053 EUROVENT CERTIFIED Fan speed: 7V (supply) 7.5V (extract fan) Heat recovery savings: 10.5 kW Heat recovery efficiency: 79% Air volume: 1200 m3/h External static pressure: 150 Pa Outside temperature:...

Electrical supply (V) Maximum input current (A) Maximum fan power (kW) Weight & size Extract fan section (kg) Supply fan section (kg) Heat exchanger section (kg) Total (kg) Size (mm) Height (mm) Fresh air filter Extract air filter Heat recovery Recirculation Night cooling Free cooling Heating/cooling with room temperature control Heating/cooling with supply air temperature control Automatic mode Smoke extraction Supply air volume (m3/h) Extract air volume (m3/h) Sound pressure level at 1m (dB(A)) Efficiency (%) External air pressure loss (supply) (Pa) Operating modes MAXIMUM IN-DUCT SOUND...

SAVINGS AND EFFICIENCY The air2air HR25 contains two energy saving EC fans - a Supply fan and an Extract fan. You can see the airflow performance of the fans below. The airflow performance is a combination of air volume (m3/h) and external pressure (Pa). Using these graphs you can select the control voltages of the fans for the units. HEAT RECOVERY OUTPUT HEAT RECOVERY EFFICIENCY – DIN EN13053 EUROVENT CERTIFIED Fan speed: 10V (supply) 10V (extract fan) Heat recovery savings: 22.5 kW Heat recovery efficiency: 78.8% Air volume: 2500 m3/h External static pressure: 200 Pa Outside temperature:...

Electrical supply (V) Maximum input current (A) Maximum fan power (kW) Weight & size Extract fan section (kg) Supply fan section (kg) Heat exchanger section (kg) Fresh air filter (kg) Extract air filter (kg) Recirculation damper (kg) Total (kg) Size (mm) Height (mm) Fresh air filter Extract air filter Supply air volume (m3/h) Extract air volume (m3/h) Sound pressure level at 1m (dB(A)) Efficiency (%) External Air pressure loss (supply) (Pa) Operating modes Heat recovery Recirculation Night cooling Free cooling Heating/cooling with room temperature control Heating/cooling with supply air...

SAVINGS AND EFFICIENCY The air2air HR35 contains two energy saving EC fans – a Supply fan and an Extract fan. You can see the airflow performance of the fans below. The airflow performance is a combination of air volume (m3/h) and external pressure (Pa). Using these graphs you can select the control voltages of the fans for the units. HEAT RECOVERY OUTPUT HEAT RECOVERY EFFICIENCY – DIN EN13053 EUROVENT CERTIFIED Fan speed: 10V (supply) 10V (extract fan) Heat recovery savings: 31 kW Heat recovery efficiency: 79.2% Air volume: 3500 m3/h External static pressure: 300 Pa Outside temperature:...