Flexomix A versatile range of modular air handling units

Flexomix A versatile range of modular air handling units

We've been saving the Earth's resources for over forty years Copenhagen Airport, Harpa Concert Hall in Reykjavik, sports arena's, schools, offices, hospitals, shopping centres and homes all have low energy consumption thanks to IV Produkt. We have been involved in an extensive list of projects. Through energy-efficient AHUs, we make it possible to recycle energy, increase the value of properties and save the Earth's resources. IV Produkt is a privately-owned company in Växjö in the Swedish county of Småland which develops and manufactures innovative solutions for air handling. We have been doing this since 1969. Today, we are the market leader domestically and have the fastest rate of development. Quick turnaround times make us efficient and the way in which we take responsibility makes it both safe and easy for you as a customer. Energy efficiency and environmental considerations have been part of our business concept since 1991, prompting us to focus on the life cycle cost, LCC. In other words, the total cost of purchasing, operation, service and environmental Development, production and head office in Växjö. impact. We want this cost to be as low as possible and regard it as a natural aspect of our product development. We are ISO certified under 9001 and 14001, which we consider essential. Our products and many years of experience enable us to identify solutions for air handling which are perfect for your particular project. We will gladly help you personally to achieve our common goal of protecting the Earth's resources. AHU 00.09.027 and AHU 05.07.300 Flexomix and Envistar Eurovent Certification is a certification body which verifies the performance of air handling units in accordance with European and international standards. They enable competing products to be compared on equal terms. 2 Our air handling units in the Envistar and Flexomix ranges have been tested by Eurovent in accordance with EN 1886 and EN 13053. When performance calculations carry the above mark, you can be sure they have been certified by Eurovent Certification. Flexomix

Masters of energy efficiency Flexomix was developed to meet the requirements of both today and the future for energy-efficient ventilation. In order for a range of AHUs to be energy-efficient, it is important that a wide variety of physical sizes is available. Flexomix is available in 23 sizes, facilitating optimal air handling. Flexomix can be used in most types of building, e.g. hospitals, offices, industrial premises, schools, hotels and shopping centres. Flexomix + Modular system The air handling unit is designed as a modular system. You choose the functions you need from our extensive range. + High-efficiency + fans and motors EcoCooler cooling unit with stepless control of cooling power and cooling recovery + High-efficiency heat exchanger + Newly developed casing for optimal U value Flexomix 3

The flexible solution... Thanks to its many functions, Flexomix offers you the chance to create a customised, energy-efficient air handling unit. Available in 23 sizes 30 different functional components Air flow 0.1 33 m³/s Rotary heat exchangers Plate heat exchangers Coil recovery Direct- or belt-driven fans Sizes 100 980 can be supplied with an EcoCooler cooling unit Available as an outdoor version New! Casing with new design and improved performance Simple installation and flexible maintenance The air handling unit in the Flexomix range is designed to make installation as simple as possible. The unit can be supplied as a unit version or as a modular version in order to simplify transport. To make the unit as simple and reliable as possible, our complete EcoCooler cooling unit can be built into the Flexomix. The components are designed to enable easy servicing and maintenance. When installed outdoors, the Flexomix is supplied with a protective roof structure, inlet louvre's and an exhaust hood. ENERGY EFFICIENCY Report to performance data YYYY Energy optimisation The Flexomix is available with a wide range of fans, motors and heating/cooling recovery exchangers to enable you to choose energy-optimised air handling which meets your needs. All sizes in the Flexomix range can be supplied in the highest energy class A in accordance with Eurovent's energy classification scale A, B, C, D and E. 4 Flexomix

... which meets your needs Delivery version With the Flexomix modular system, we can offer you various delivery versions depending on your specific requirements and what is appropriate as regards transport and lifting. Supply and extract air unit, 1-height Supply and extract air unit, 2-height Modular design with base frame Outdoor version Air flow areas Functions Red field indicates the air flow range Blue field indicates the flow range for the EcoCooler cooling unit Width height for 1-level version 3150 2550 2240 2050 1950 1550 1540 1250 1150 980 950 850 750 740 600 480 360 300 240 190 150 100 060 0,0625 0,125 0,25 0,5 1 2 4 8 16 32 3790 2580 3180 2580 3790 2040 3180 2040 2580 2580 2580 2040 3180 1680 2580 1680 2040 2040 2860 1445 2020 1660 2560 1370 2020 1370 2480 1240 2200 1135 1990 1030 1616 1030 1616 845 1400 845 1400 735 1120 735 1020 545 890 480 m 3 /s Rotor Cooling unit Plate heat exchanger Coil heat exchanger Flexomix 5

We protect resources Air that is extracted via ventilation systems often contains a lot of heat. We do not want to let this heat go to waste and aim to recover as much of it as possible. We do this by using various types of heat exchanger. We recover the heat that is present in the extract air and use it to heat the cold air that is brought in from the outside. The Flexomix range includes many different types of high-efficiency heat exchangers. This enables us to offer the optimal solution whilst protecting global resources at the same time. Heating recovery 22 ºC 20 ºC -20 ºC 15 ºC heating 5 ºC On a cold winter's day with an outdoor temperature of -20ºC, we can recover sufficient heat from the extract air to heat the supply air to 15ºC using a rotary heat exchanger. In this case, we only need to heat the air by 5ºC instead of 40ºC in order to achieve an inlet temperature of 20ºC. Rotary heat exchangers The Flexomix range includes a large number of rotors for heat, cold and moisture recovery offering a low pressure drop and high efficiency. Various versions of the rotors are available in order to optimise your LCC calculation. All rotors have stepless speed control to maintain a constant temperature. High-efficiency heat exchangers with a dry temperature efficiency of up to 87% To each unit size there are three options of well design to optimize heat recovery and LCC Many of the sizes are available with different diameter rotors to further optimise the efficiency of the system Available with hygroscopic surface for improved cooling recovery 6 Flexomix

Plate heat exchanger The plate heat exchanger is a complete unit which uses heat transfer according to the air-air principle It is primarily used for installations where it is important to minimise the risk of leakage between supply air and extract air. Available in standard and plus versions for optimal efficiency No risk of odour transfer Coil recovery To optimise recovery using liquid-coupled coils, many different versions are available. Recovery coils are suitable for use when the supply air and extract air systems are separate or it is important to prevent leakage between the supply air and extract air. To optimise the recovery process, many different versions are available No risk of odour transfer Efficiency In the industry, the performance of heat exchangers is presented in different ways. The terms dry and wet temperature efficiency are for example used. According to the EN 308 standard, dry efficiency should be used to indicate the performance of heat exchangers. This method is used so as not to give a misleadingly high performance by incorrectly utilising the air humidity. Flexomix 7

Pleasant indoor climate The entire Flexomix range is available with an integrated cooling unit. As a result, you get a turnkey solution for ventilation and comfort cooling which requires no outdoor installations. All the cooling unit's components are built into the air handling unit. You get a complete CEmarked installation for ventilation and comfort cooling, which is always tested at our test facility. A unit with integrated cooling requires significantly less energy than one with an external cooling unit. The Flexomix range includes the integrated EcoCooler cooling unit which is available in sizes 100 980. EcoCooler The EcoCooler is a turnkey solution which will meet your needs for cooled air, low installation costs and reduced operating costs. In some buildings, the air flow varies significantly and a highly accurate supply air temperature is required. The EcoCooler uses a frequency converter to enable stepless control of cooling power. Air flow 0.12 10 m³/s, cooling power 3 235 kw High COP, 4 7 Ideal for large variable air flows, VAV Available with cooling recovery No outdoor installations Compact dimensions for simple inward transport and smaller installation rooms Complete CE-marked cooling installation PATENT We have developed a unique cooling coil solution for EcoCooler. This technology results in a further temperature reduction of around 8%, without any energy being supplied. Read more about EcoCooler in the separate brochure. 8 Flexomix

without any outdoor installations With our integrated cooling units, no outdoor installations are necessary. The photograph on the left shows a liquid cooling unit installation with a refrigerant cooler which is usually located on the roof. In the building in the photograph on the right, an EcoCooler cooling unit has been integrated in the air handling unit. This makes for a more attractive architectural solution. Traditional installation on the roof. Cooling recovery The EcoCooler cooling unit is available with an integrated rotary heat exchanger for cooling recovery in sequence with the cooling unit. This maximises energy utilisation and ensures a low connected power load. In all sizes, standard or plus versions of the rotary heat exchanger are available for optimal recovery. Both versions are available with a hygroscopic surface, further reducing energy use. Integrated cooling in the air handling unit means you avoid having unattractive installations on the roof. Did you know that... with the EcoCooler, the operating cost of cooling a 300 m 2 office building is just approx. 200 a year? 22 ºC 16 ºC 28 ºC 23.5 ºC cooling 7.5 ºC On a hot summer's day with an outdoor temperature of 28ºC, we can recover sufficient cooling from the extract air to cool the supply air to 23.5ºC. In this case, we only need to cool the air by 7.5ºC instead of 12ºC in order to achieve an inlet temperature of 16ºC. Flexomix 9

Top performance Fans The Flexomix range is available with wide range of direct-driven fans and motors in order to optimise the fans' efficiency and minimise electricity consumption. Each fan impeller and motor is balanced and test-run together to ensure that they operate optimally, ensuring a long service life. The directdriven fans are intended for speed control and have a built-in rotary diffusor. They offer low sound levels and high efficiency. Belt-driven centrifugal fans with backwardor forward-bent blades can also be ordered with the Flexomix range. EC motors Available for sizes 060 360 Integrated speed control Motors with permanent magnets PM with an efficiency corresponding to IE3/IE4 Control via 0 10 V Motors with integrated frequency converter Available for sizes 480 980 PM with an efficiency equivalent to IE3/IE4 Control via 0 10 V Motor for external frequency converter Available for sizes 060 to 3150 Motors with efficiency IE2/High Efficiency Optional extras Motor with IE3 efficiency PM motor with an efficiency equivalent to IE3/IE4 10 10 Flexomix

New casing gives added benefits Thanks to our rapid pace of development, we are continually getting better at energy-optimised air handling. This product development has now resulted in the entire range being given a casing with an even better design, shape and energy performance. We have worked on innovative solutions throughout the entire manufacturing process, enabling us to offer AHUs with even lower heat losses. According to the EN 1886 standard, the classification of the casing is determined by the U value. The lower the number, the better the insulation capacity. Indoor AHUs ThermoLine Two versions of the casing are available. The standard version is classified under casing class T3, which has a U value of 1.24*. For the best energy performance, you can now also choose ThermoLine, which is a class T2 casing and has a U value of 0.88*. A casing class of T2 reduces cold bridges. In fan rooms with high air humidity, this reduces the risk of condensation forming on the AHU casing. Class T2: U value 0.5 1.0 Class T3: U value 1.0 1.4 H O 2 H O 2 A major advantage of the recentlydeveloped casing design is that we can choose different casing classes for selected parts of the unit. For example, using ThermoLine T2 for the inlet and extract air sections on an indoor unit will offer the most energy-efficient and cost-effective solution. ThermoLine T2 Outdoor AHUs T3 The black plastic insert in the profile breaks the cold bridge and is a characteristic of the ThermoLine T2 casing. H O 2 H O 2 In the case of outdoor AHUs, it is largely the supply and extract air sections which give rise to heat losses. Using ThermoLine T2 for these sections offers the most energy-efficient and cost-effective solution. T3 * Measured in model box in accordance with EN1886. ThermoLine T2 The pay-back period for ThermoLine depends on the installation's operating conditions and energy prices. Flexomix 11

Help along the way We have developed a tool which enables you to perform calculations using the data for your project. Using the programme IV Produkt Designer, you can easily and quickly design your unit to meet different needs. You will receive a dimensioned and finished drawing with technical data containing specific fan power values, temperature efficiency, sound data and much more. The programme generates a three-dimensional model of the air handling unit, which can be exported to AutoCAD and MagicCAD (DXF/XML). You can also perform a separate LCC calculation for an existing or new unit. This will enable you to calculate the profitability of replacing an older unit. IV Produkt Designer can be downloaded free of charge from www.ivprodukt.com, or contact us and we will of course be happy to help you. 12 Flexomix

Can you afford not to? Project AHU Size Data for LCC Health care Center AHU 01 The LCC calculation from IV Produkt Designer gives you a quick indication of the return and pay-back period. Summary for economical valuation Economic factors Today's electric energy price 0.13 EUR/kWh Expected energy price increase, El. 3.0 % Today's heating energy price 0.07 EUR/kWh Expected energy price increase, Heat 3.0 % Real calculated interest 5.0 % Life expectancy 20 years New Existing Valuation presentation Investment (I) 61,100 EUR Life Cycle Cost energy (E) 76,300 290,915 EUR Alfa factor energy (A) 1.00 1.00 Sum for valuation (I + E x A) 137,400 290,915 EUR Difference in sum for valuation 153,515 EUR Running data Flow supply air 4.00 4.00 m³/s Flow extract air 4.00 4.00 m³/s SFP value 1.39 3.20 kw/m³/s Exchanger's temperature efficiency (dry) 85.3 50.0 % Yearly running time 5,800 5,800 h Amount 460,000 440,000 420,000 400,000 380,000 360,000 340,000 320,000 300,000 280,000 260,000 240,000 220,000 200,000 180,000 160,000 140,000 120,000 100,000 80,000 60,000 40,000 20,000 0 0 1 2 Pay back time (energy price increase involved): 4.4 years Profit from investment: 21.5 % 3 4 5 6 7 8 9 10 Year 11 12 13 14 15 16 17 18 19 20 Saving Pay back An example calculation is presented below for a completed project concerning a healthcare centre. Operating data New Existing Flow supply air 4.0 4.0 m 3 /s Flow extract air 4.0 4.0 m 3 /s SFPv value 1.39 3.20 kw/m 3 /s Temperature 85 % 50 % efficiency Annual operating time 5,800 5,800 h Investment cost for AHU and installation Pay-back period with regard to energy saving 61,100 EUR 4.4 years Return on investment 21.5 % Added value As operating costs are reduced, the value of the property will be boosted considerably. Flexomix 13

Projects we have delivered to... Here is just a tiny selection of the thousands of projects in which, together with consultants and installation firms, we have used our wide range of products to deliver innovative solutions for energyand cost-effective air handling. Passive houses in Växjö, Sweden Northern Europe's largest hospital, Skejby in Århus, Denmark Curve Theatre, Leicester, UK Harpa Concert Hall in Reykjavik, Iceland Titanic Museum in Belfast, Great Britain

Kastrup Airport, Copenhagen, Denmark Tallinn Television Tower, Estonia... over the years Prague Metro, Czech Republic Police Station in Kalmar, Sweden ÅF s head office in Stockholm, Sweden Approved in accordance with Green Building

IV Produkt AB SF.150609.01.EN This is just part of our wide range. See our full range at www.ivprodukt.com, or contact us to find out more. You are welcome to contact us Växjö Sjöuddevägen 7 SE-350 43 Växjö Switchboard: +46 470 75 88 00 Control support: +46 470 75 89 00 info@ivprodukt.se www.ivprodukt.com IV Produkt UK Ltd Sweden House, 4th Floor, 5 Upper Montagu Street, London W1H 2AG Phone: 020 7616 4092