Mikael Börjesson Product manager. Commercial air handling units Ventilation functionality Building management system integration

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2 Mikael Börjesson Product manager Commercial air handling units Ventilation functionality Building management system integration

3 Topics Presentation of the new generation of compact air handling units, when standardization meets adaptation What performance will you have if you integrate the production of heating and cooling inside an air handling unit? How to ventilate with minimal risk of contamination from extract air?

4 Background and purpose

5 Purpose Several tasks: Transport Impurities Over/under-temperature Provide fresh air Balance pressure in building Recover heat and cold Impurities GOLD PX As energy effective as possible! Fresh air

6 Characteristics Different components and combinations of Fans Energy exchangers Casing Controls Modularity/flexibility will make products suited for different applications GOLD PX GOLD SD

7 Air handlig units (AHU) GOLD PX Different combinations gives different product categories One piece units Modular units Supply- and extract air units Residential units Room units GOLD SD

8 Todays focus: One piece unit Key components and controls in one casing Benefits: Compact sizing Integrated functionality and controls Serie produced & quality tested Energy effective Optimized costs Easy to configure GOLD PX GOLD SD

9 Performance hard facts What are included in high performance? Two main aspects: 1. Ability to recover energy from air streams 2. Ability to transfer air in an effective manner: - Air pressure in system - Pressure drop in unit - Air flow - Fan performance - Unit size

10 Performance Energy recovery Target: Find an optimal balance between energy recovery and internal pressure drop Effective energy exchanger High temperature recovery between supply- and extract air demands high density which means more material that can transfer energy Increases pressure drop Low pressure drop The air streams will pass the exchanger easily, which will decrease the needed fan energy Decreases the energy recovery Recommendation! Compare different annual energy calculations

11 Performance Effective air movement Low electrical consuming per unit transported air Index key: SFP v : Ventilation units specific fan effect, kw/(m 3 /s) Depending of: Low pressure drop internally Fan efficiency

12 Performance Effective air transport The unit is not everything it has to match the system Airflow that matches fan capacity/unit size Low duct pressure

13 Performance To consider: 10% airflow increase 20% increase of duct pressure 40% increase of motor effect Try to plan for future changes when dimensioning the unit/system

14 Performance Important to balance all this aspects! Low SFP v -number for normal condition High annual energy efficiency for energy exchangers Low duct pressure Correct size for the ventilation unit

15 Presentation of the new generation of compact air handling units, when standardization meets adaptation The new GOLD air handling unit crosses the border for what we know about One piece units with compact design

16 The formula behind a good indoor climate Hardware Software Performance Knowledge 16

17 More then 20 years GOLD ventilation + controls

18 Constant development New generation GOLD New challenges Intelligence Eco Design Flexibility Safety Comfort Economy

19 More freedom Modularity Adaptability sizes 1 cover 2017 New platform

20 ANIMATION MODULARITY

21 The best of two worlds Serial produced compact unit + Extended flexibility = Everyday benefits

22 Casing performance Excellent casing Improved design for outdoor installation Handles & connection hood adapted for outdoor use Composite hinges Recessed doors New sheet metal quality

23 Casing performance Outstanding performance data

24 What performance will you have if you integrate the production of heating and cooling inside an air handling unit? Presentation of the new GOLD air handling unit with integrated reversible heat pump.

25 An unbeatable combination for ventilation, heating and cooling

26 ANIMATION RX/HC

27 GOLD RX/HC Performance Air flow up to m3/h Cooling output up to 110 kw Heating output up to 44 kw Operation down to -25 C and +35 C Energy efficient Sorption rotor Inverter controlled compressor High COP/EER

28 Performance

29 Functionality Cost efficient Defrosting options according to climate zone Simple system design Ventilation, cooling and heating in a single package Simple installation and operation Unbeatable compact dimensions Prefilled One common GOLD control interface

30 How to ventilate with minimal risk of contamination from extract air? Introducing the GOLD air handling unit with rotary exchanger and counter flow exchanger for different applications.

31 How to choose the right solution Minimize contamination risk Keep or increase efficiency

32 Rotary heat exchanger Optimized space

33 RECOnomic rotary exchanger Temperature efficiency above 85% No need for defrosting Patented solution Conventional solution Patented Swegon s turbulent solution

34 Contamination control Purging sector separates supply and extract air Without purging sector renblåsningssektor With purging sector

35 Contamination control Through Pressure measurements Adjustments plates P Purging sector Carry-over control Secured airflow Reliable for VAV/DCV! Extreme low internal leakage, only 0,45%

36 GOLD RX - Rotary heat exchanger High annual temperature efficiency No need of defrost Small footprint Most contamination is reduced

37 RECOflow Counter flow heat exchanger Temperature efficiency above 85% Demand controlled adaptive defrosting Compact design Internal leakage L2

38 ANIMATION GOLD PX

39 RECOfrost High temperature efficiency when defrosting Less need for post heating Unique demand control of defrosting Handles cold climates without pre heating Exchanger/damper Bypass Exchanger/damper

40 Spring and autumn optimization Automatic pressure reduction Reduces pressure up to 64% Energy savings

41 RECOflow and RECOfrost Compact footprint Temp efficiency up to 88% High annual energy efficiency Tight fulfil class L2 Reduces pressure drop

42 How to choose the right solution Minimize contamination risk Keep or increase efficiency Advantage: Annual energy efficiency Needed space Depending of odour you can choose both solutions Each solution has its advantage and disadvantage Advantage: High tightness class Demand controlled defrosting

43 GOLD air handling unit Key components and controls in one casing Adaptable Integrated cooling and heating production Energy efficient exchangers with solutions to handle contamination between air streams GOLD PX GOLD SD

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