product reference application bösch Optima ME The heart of every efficient and hygienically save air handling unit www.boesch.at/klima Modern air handling units from bösch, with minimal energy consumption for the building standards of tomorrow. Air volumes from 400 m³/h to 7,000 m³/h
Guidelines There are numerous standards that need to be considered for the construction of buildings and specifi - cally for air handling units. bösch knows the relevant guidelines for the manufacturing of air handling units and has the necessary expertise to implement them accordingly. EPbd directive for total efficiency of buildings (EU) din 18599 assessing procedures Oib directive 6 Austrian institute for building technology Oib 382 energy certificates for buildings Photo: SFH, Ivo Vögel EN 1886 air handling units - mechanical performance EN 13053 rating of performance for air handling units and components vdi 6022 hygienic requirements for ventilation and air-conditioning systems ÖNORm H 6021 air handling units - pollution control and cleaning The revolutionary housing system proven quality The outstanding quality of is confi rmed by the TÜV test results according to EN 1886. The housing excelled in all areas with top marks. This was in theareas of thermal bridges, heat loss, air tightness and mechanical strength of the housing with the outstanding values of TB2, T2, L1 and D1. The 70 achieved even better results with TB1 (thermal bridge) and T1 (temperature loss). Thermal bridges TB2 35 120 temperature measuring points in all relevant areas have confirmed that each individual measuring point reached TB2. Airtight housing L1 35 The air leakage of the housing was tested under two different conditions and once again the housing achieved best values (-400 Pa with 0.05 l/sm² and +700 Pa with 0.08 l/sm²). Temperature loss T2 35 To determine the temperature loss through the housing walls, the temperature difference between the inside and outside of the housing was measured. According to the heat output a heat transfer coefficient of 0.9 W/m²K was then established. Mechanical stability D1 35 At pressure conditions between -2,500 Pa and +2,500 Pa the deflection of the housing may only be minimal (no permanent deformation). 35 has proved itself in the test with excellent values of 1.2 mm/m at +1,000 Pa pressure. 2
Air handling unit concept According to the latest energy and hygiene standards Energy efficient Modern housing design is tested according to EN 1886, air leakage L1, insulation class T2 and TB2, mechanical stability D1 Interior of the unit is completely even Tested, energy efficient components: EC centrifugal fans Counter flow plate heat exchanger Fine dust panel filter F7 with large filter surface Slim water heat exchanger with a high net cross section Intelligent component arrangement Optimum air flow over the components Little air direction changes in the unit ensures a low dynamic pressure loss and high a unit efficiency Low air velocity inside the unit Compact Direct driven EC fans Reliable Use of easy interchangeable quality components Intelligent, optimized unit concept Wired onto the terminal box (plug and play) All built-in components are tested and comply with the relevant EN standards Hygienic According to ÖNORM H 6021, VDI 6022 The housing inside is perfectly even Large inspection doors for optimum maintenance and easy cleaning All components are easily accessible from all sides Slide-out panel filter with tight fit Slim low pressure hot water heat exchanger with a fin spacing of 2.1 mm Wiring on the outside of the unit Slim F7 panel filters Compact unit size through optimized component placement Optimal price-performance ratio 3
bösch Optima ME air handling units The perfect answer to the EPBD2012 (energy performance of building directive) to reduce global warming HEATER Low pressure hot water heat exchanger for heating the air by about 4 degrees Kelvin, designed for heat pump temperatures. Alternative electric PTC finned resistor heating element on request. COUNTER-FLOW PLATE HEAT EXCHANGER Adjustable with bypass damper, heat recovery rate dry PHI. T 80% at 150 Pa pressure loss. Maximum differential pressure is 500 Pa, air flows are completely separated. Housing Low heat losses through a thermaly decoupled housing, housing characteristics according to EN 1886, insulation class (T2/TB2/L1) leakage D1 (CENB) large inspection doors. Only a holistic view of the efficiency factor leads to an efficient operation ratio. Therefor optimal components and the installation thereof are important factors, said Dr. Bruno Lindl, Research and Development Manager at ebm papst. 4
TOP FEATUREs Energy effi cient Reliable Hygienic Compact Quick delivery time Plug & play CONTROL PANEL with Siemens controller mounted and wired to the air handling unit (plug & play) and test run in the factory. On request the control panel can also be supplied loose. Options: BACnet and fi re control dampers connection. FiLTER CLAmPiNG device Panel filter without tools quickly and safely interchangeable, 25 mm filter head frame for tight fit in the filter clamping device, standard filter sizes, seal inserted and easily exchangeable. Panel fi lter EN 779, F7 Pleated glass fiber material, resistant against moist air, large filter area, high stability, filter life approximately 1 year, filter surface 8.8 m²/ module. Heat recovery effi ciency > = 85 % EC FANs Energy effi cient centrifugal fan with direct drive from ebm papst for 40,000 troublefreeoperating hours, continuously adjustable, effi ciency factor surpasses the standard ERP 2015 and thus IE4. 5
Technical details EC-fan technology - already meets the performance and efficiency of the ERP directive 2015 Fan motor comparison (IE without frequency converter) efficiency rate shaft power EC: 2-pole EC: 4-pole EC: 6-pole IE3: 4-pole IE3: 2-pole IE2: 4-pole IE3: 6-pole IE2: 2-pole IE2: 6-pole EC - permanent magnet motor IE2/3/4 AC motors High fan efficiency in partial load operation Counter-flow plate heat exchanger and plate heat exchanger High heat recovery rate with low pressure loss and with bypass damper for performance adjustment air volume (m 3 /h) efficiency rate (%) pressure loss (PA) air speed m/s efficiency rate volume flow Heat recovery rate Φ t eff 80 % Characteristics of the cross-flow plate heat exchanger at different air volumes (example module 1.5) 6
Composition Six different variations Unit typ H - horizontal airflow Layout 1 ( & on top) Layout 2 ( & on top, mirrored) Layout 3 ( & below) Layout 4 ( & below, mirrored) Unit typ w - vertical airflow Layout 5 (Vertical airflow) Layout 6 (Vertical airflow, mirrored)) Subject to technical changes. 7
Design type Delivery possible in segments Module size from 0.25-2.0 Design H (all duct connections on the side) Design W (all duct connections on top) Module size from 2.25-3.0 Design H (all duct connections on the side) Design W (all duct connections on top) Subject to technical changes. 8
Specifications Module size 0.25-H 0.25-W 0.5-H 0.5-W 0.75-H 0.75-W 1.0-H 1.0-W 1.5-H 1.5-W 2.0-H 2.0-W 2.25-H 2.25-W 3.0-H 3.0-W Airflow (CH) m³/h 400 400 900 900 1,500 1,500 1,600 1,600 2,400 2,400 3,300 3,300 4,000 4,000 5,400 5,400 Airflow (A, D, CZ, SK) m³/h 400 400 1,100 1,100 1,700 1,700 2,000 2,000 3,000 3,000 4,200 4,200 5,000 5,000 7,000 7,000 Max. ext. pressure loss (CH) Pa 290 290 470 470 550 550 540 540 450 450 710 710 990 990 515 515 Max. ext. pressure loss (A, D, CZ, SK) Pa 290 290 400 400 490 490 440 440 310 310 490 490 840 840 330 330 Fan* Voltage V 230 230 230 230 230 230 230 230 400 400 400 400 400 400 400 400 Current consumption (max.) A 1.30 1.30 2.80 2.80 3.3 3.3 3.3 3.3 1.63 1.63 2.60 2.60 4.60 4.60 4.20 4.20 Power consumption (max.) kw 0.166 0.166 0.45 0.45 0.75 0.75 0.75 0.75 1.00 1.00 1.70 1.70 3.00 3.00 2.70 2.70 Counter-flow exchanger Heat recovery rate (dry) %** 80 80 81 81 81 81 81 81 81 81 81 81 80 80 80 80 Low pressure hot water heat exchanger Heat output (CH) kw 0.70 0.70 1.57 1.57 2.62 2.62 2.79 2.79 4.19 4.19 5.76 5.76 6.98 6.98 9.42 9.42 Heat output (A, D, CZ, SK) kw 0.70 0.70 1.92 1.92 2.97 2.97 3.49 3.49 5.23 5.23 7.33 7.33 8.72 8.72 12.20 12.20 Medium temperature C 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 40/30 Air IN/OUT C*** 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 17/22 F7 filter surface m 2 2.0 2.0 4.2 4.2 6.4 6.4 8.8 8.8 13.0 13.0 17.6 17.6 18.6 18.6 26.4 26.4 Housing dimensions L mm 1,620 1,620 1,930 1,620 1,930 1,620 2,550 2,860 2,550 2,860 2,550 2,860 3,170 3.240 3.170 3,550 W mm 380 380 690 690 1,000 1,000 690 690 1,000 1,000 1,310 1,310 1,000 1,000 1,310 1,310 H mm 690 1,000 1,000 1,000 1,000 1,000 1,310 1,620 1,310 1,620 1,310 1,620 1,930 2,240 1,930 2,240 Approx. weight in kg 220 250 250 280 380 410 430 460 580 600 680 710 850 880 1,010 1,090 * Rated fan motor data (not at the operating point) ** At 5 C/80% RH. F., at 22 C/40%. *** Fan motor waste heat is not taken into account Range of application 7,000 m³/h = CH = A, D, CZ, SK 400 m³/h 400 m³/h 900 m³/h 1,100 m³/h 1,500 m³/h 1,700 m³/h 1,600 m³/h 2,000 m³/h 2,400 m³/h 3,000 m³/h 3,300 m³/h 4,200 m³/h 4,000 m³/h 5,000 m³/h 5,400 m³/h Unit size M 0.25 M 0.5 M 0.75 M 1.0 M 1.5 M 2.0 M 2.25 M 3.0 9
Accessories PTC-finned resistor heating elements Automatic regulation of the heating output by adjustment of the air volume, for use in the Optima ME unit instead of the low pressure water heat exchanger. Specifications: 500 W - 2,000 W, 230 V / 50 Hz. Cooling unit Chilled water heat exchanger or direct expansion cooling coil, installed in a highly insulated housing to be installed into the duct system. Air cooled heat pump Toshiba digital inverter outdoor unit for cooling the supply air in conjunction with a direct expansion cooling coil in a Optima ME air handling unit. Outdoor air pre-filter unit Pocket filter for pre-filtration class G4 in case of heavily soiled outside air, installed in a highly insulated housing to be installed into the duct system. Activated carbon filter unit To eliminate odors and gaseous pollutants, installed in a highly insulated housing to be installed into the duct system. 10
Planning Guidelines The bösch Optima ME air handling units are designed according to the current EN DIN and EN ÖNORM standards The requirements of the Passivhausinstitut (institute for zero emission houses) and the German institute of building-technology only refer to the energy consumption of the air handling unit. In the beginning these require ments where only meant for small air handling units such as those used for apartments and single family houses. The guidelines for the heat recovery rate and the fan power consumption can t be compared with the EN-Standards. The housing quality and the hygiene aspects are not taken into consideration. The Optima ME air handling units are designed for central and semi-central ventilation systems. The advantages over single room ventilations are: Quick and easy maintenance as only one device needs to be serviced Cost-efficient maintenance and can be serviced at any time High efficiency factor for fans, heat exchanger and filters Use and implementation of industrial components Strict noise requirements are easily achieved The device has the leakage class L1 and the plate heat exchanger has an internal leakage of <0.2% at dp = 250 Pa. There is no need to increase the air volume as there is no leakage and no odor transfer. The thermal transfer of the aluminum plate heat exchanger can be regulated through a face / bypass damper system. Thus, free night cooling is possible. The air volume can be controlled in steps or continuously. The stepped control strategy has three steps (day/night/ party). The continuous controlled strategy is implemented in case of air quality or demand control as well as pressure control where different zones are in use. bösch offers control strategies for a number of advanced applications. 11
Schematic diagram -/-air handling unit with counter flow plate heat exchanger tip Plug & play saves time and money! Supplied ready for use with standard software pre commissioned. filter gauge damper actuator 2pt bypass-damper actuator freezing protection filter gauge OPTION: co 2 -sensor OPTION: differntial pressure sensor DPT1000 space: room control unit duct temperature sensor QAM212 OPTION: co 2 -sensor external temperature sensor Maintenance switch & fan Fan max. 5A frost thermostat QAF642 duct temperature sensor QAM212 OPTION: differential pressure sensor DPT1000 OPTION: hygrostat fire alarm general fault signal Fan max. 5A duct temperature sensor QAM212 OPTION: valve actuator OPTION: room temperature sensor N11000 OPTION: fire control damper FPD 1 FPD 2 FPD 3 FPD 4 valve actuator heating signal direct expansion cooling coil OPTION: digital inverter The control of the fans is either done via a three-step program (night/day/party/free night cooling), continuously via pressure control or continuously on demand control by CO 2 sensors. Subject to technical changes. 12
bösch Optima ME controls An intelligent and energy-saving control system with modern BACnet communication technology Control panel Metal housing with lockable inspection door (housing - IP54) BACnet communication module (optional) To integrate the air handling unit control into the existing building control system Built-in isolator on inspection door Maximum 5.5 kw, 3 x 400 V, 50 Hz Operator panel Integrated into the inspection door Plain text keypad with eight rows and backlight Six buttons for easy menu-navigation Freely definable passwords for each access level Fire control damper connection (option) Terminal box with THC-modules in separate metal housing For 4 to 17 THC-modules, serial connection possible Mounted and wired on the unit adjacent to the control panel Room control unit Digital display for setting the desired supply air temperature Integrated timer and room air temperature sensor 13
Applications For central and semi-central ventilation systems Schools and Kindergartens Office Buildings Photo: Bruno Klomfar Housing Complex Public Buildings Social Institutions Fire Stations 14
Certified Quality Implemented efficiency We don t just speak about quality, we also produce it. The best proof of this is the long-standing loyalty of our clients and high customer satisfaction. Naturally our working processes conform with EN ISO 9001:2008. Additionally we are certified according to VDI Directive 6022 and ÖNORM H6021. This confirms that our air handling units conform to the strict hygiene standards. Energy efficiency is important to us All components such as housing, dampers, filters and fans not only have to meet strict government regulations but also have to assure high energy efficiency factors. By quality we mean the implementation of energy efficiency, high quality and durable components along with professional know-how in sales and in production. Our modern production facilities meet the highest standards. For these reasons, we can live up to our high set quality requirements. Tens of thousands sold air handling units are the best evidence thereof. For this quality Walter Bösch GmbH & Co KG vouches with its name. Good quality is often not recognized at the first glance. We pay attention to the smallest details to ensure that our solutions live up to the highest expectations even at a close look. Air handling units from bösch are absolutely even inside and have a convincingly low air leakage rate. The high load capacity and stability of the housing differentiates us from all the other housing systems. The rigid panels can handle a high mechanical load, hence can be walked on inside the unit as well as on top of the unit. This in return provides easy maintenance. 15
The partner you can trust We are here for you www.boesch.at/klima Austria Walter Bösch GmbH & Co KG Industrie Nord 12, 6890 Lustenau T +43(0)5577/8131-0, F +43(0)5577/8131-860 info@boesch.at, www.boesch.at Regional centres 6020 Innsbruck, Pontlatzerstr. 63 T +43(0)512/268820-0, F +43(0)512/268820-23 5101 Bergheim/Salzburg, Oberndorferstr. 16 T +43(0)662/454509-0, F +43(0)662/454509-23 4060 Linz/Leonding, Gerstmayrstr. 44 T +43(0)732/672186-0, F +43(0)732/672186-12 1230 Wien, Eitnergasse 5a T +43(0)1/8659536-0, F +43(0)1/8659543-27 8045 Graz/Andritz, Neustiftweg 19 T +43(0)316/691701-0, F +43(0)316/691701-23 9020 Klagenfurt, Schaußgasse 5 T +43(0)463/318960-0, F +43(0)463/318960-23 Germany Walter Bösch GmbH & Co KG 89312 Günzburg, Am Stadtbach 8b T +49(0)8221/2016160 F +49(0)8221/20161699 87544 Blaichach/Südbayern T +49(0)8321/4072455 F +49(0)8321/4072456 74639 Zweiflingen/Franken T +49(0)7941/602089 F +49(0)7941/602918 78467 Konstanz/Baden-Württemberg T +49(0)7531/3696273 F +49(0)7531/3696274 info@boesch.at, www.walterboesch.de Sales partner in the Czech Republic KLIMA solution s.r.o. 75701 Valasske Mezirici, Hemy 894 T +420/571166222 F +420/571166222 info@boesch.cz, www.boesch.cz Switzerland Walter Bösch AG 8807 Freienbach, Kantonsstr. 14 T +41(0)44/7874010 F +41(0)44/7874011 3110 Münsingen, Erlenauweg 17 T +41(0)31/7215573 F +41(0)31/7215575 4055 Basel, Burgfelderstrasse 14 T +41(0)61/3222922 F +41(0)61/3222925 Hungerbühler SA 1227 Genève, 45B rte des Acacias T +41(0)22/3427650 F +41(0)22/3427018 info@walterboesch.ch, www.walterboesch.ch Sales partner in Slovakia SIGNOS s.r.o. 953 01 Zlaté Moravce, Robotnická 60 T +421/376555923-5 F +421/376588135 signos2@signos.sk, www.signos.sk Our bösch partner is happy to give you advice. Feel free to arrange a non-binding appointment. Subject to technical changes and printing errors. Item no. 910384 06/2013 Quantity: 300