AIR MANAGEMENT APPLICATION GUIDE FOR» INNOVATIVE VAV DAMPER WITH ULTRASOUND TECHNOLOGY
UltraSound Technology by FläktGroup LOW NOISE GOOD INDOOR AIR QUALITY FLEXIBILITY ACCURATE & VERSATILE ENERGY EFFICIENT MAINTENANCE FREE OUR ULTRASOUND INNOVATION Ultrasound is a natural technique used by bats and dolphins, for instance. It s an effective way to analyse what s around you without seeing or touching it. In our innovation we have adapted ultrasound to analyse what happens with the air flow inside a ventilation duct. Precise sensors and clever algorithms gives us a very detailed image of the air stream by studying how sound waves are affected by the moving air. 2
INNOVATIVE VAV DAMPER WITH ULTRASOUND BRINGS UNMATCHED BENEFITS TO A WIDE RANGE OF APPLICATIONS FläktGroup OPTIVENT is a trusted line of VAV dampers that have been optimized with the latest cutting-edge innovation. With advanced airflow analysis based on ultrasound technology we now present a new dawn for Demand Controlled Ventilation. A landmark innovation setting aside traditional challenges for VAV dampers; Noise, turbulence and pressure drops in the airflow. Dust buildup affecting measuring precision, contaminating the air and requiring maintance. also offers unique benefits for builders, property owners and construction companies in more aspects. It avoids traditional risks and disadvantages in VAV systems and leads to simplified design, installation and commisioning, bringing lowered life cycle costs and an unprecedented level of air comfort as well. OPTIVENT ULTRA by FLÄKTGROUP 3
OPTIVENT ULTRA AND DEMAND CONTROLLED VENTILATION FOR INDOOR AIR QUALITY & COMFORT Today we spend over 90% of our time indoors. In order to reduce energy consumption, buildings are becoming more airtight. This means well planned ventilation and indoor air quality is more important than ever before. Not just for comfort reasons, but also to enable us to perform to our best. To learn more at school, to get well sooner in hospital and to be more productive at work. A Demand Controlled Ventilation (DCV) system detects momentary demand on ventilation and adapts to provide what s needed no more, no less. Doing so requires precision and flexibility from both system and components. as Variable Air Volume damper fits at the heart of any DCV system, adding further comfort benefits to the installation. Improved indoor air quality positively affects productivity. Increasing fresh air rates from 12 l/s to 24 l/s per person, has shown to reduce short term sick leave by 35%. Doubling the outdoor air supply rate in classrooms (in a range from 3 to 9,5 l/s per person) would improve the performance speed by 8 14%. 4
26 l/s PRECISE AIR VOLUME The measuring precision of our Ultrasound technology means that exactly the correct amount of air is supplied at any given moment. Not less, impairing comfort or health. Not too much, causing draft and unneccesary energy consumption. LOW SOUND LEVELS The sensor free flow measurement causes no noise inducing turbulence. A low flow resistance also requires lower pressure, which also limits noise levels. 8 l/s VERSATILE Ultrasound technology has the big advantage of being without any physical sensor inside the air stream. That means less risk of dust build-up a big advantage in many applications. FLEXIBLE WORKING RANGE OPTIVENT is constructed for optimum performance, from a minimum flow with delicate control to a maximum without turbulence or pressure drop from measuring air flow. 65 l/s TEMPERATURE & CO 2 IN CONTROL Thermal comfort and low CO 2 levels are crucial demands on indoor air climate. A narrow comfortable range of only a couple of degrees C require precise control, while the demand for fresh air means that CO 2 level must be controlled carefully. HUMIDITY Well controlled humidity levels is a less noticed air quality requirement. Unbalances still causing comfort issues like irritation in eyes, nose and skin and secondary effects like static electricity. is perfect for good comfort because of longterm control precision in DCV and low noise levels. 5
SOLVING THE CHALLENGES OF DEMAND CONTROL VENTILATION WITHIN ENVIRONMENT, ECONOMY, INSTALLATION AND RELIABILITY Nearly zero-energy buildings are the future, but it s a very near future. All new buildings must meet the standard by 2020, public buildings already 2018. The solution for ventilation goes in the footprints of automatic lights, switching on when we enter a space and off when we leave it. As ventilation requires even more energy than lighting, it makes sense to only deliver costly treated air when we need it and, where we need it. And that s the goal of DCV, Demand Control Ventilation. Adapting the ventilation provided exactly to the momentary need is a clever thought. It requires some additional hardware, like sensors and dampers, and refined controls that manages the system. But the increased investment has a short payback-time, when large energysavings lowers costs longterm and at the same time benefits the environmental aspects. Demand controlled ventilation is therefore growing heavily year by year. At the same time the challenges for design, installation, commissioning and maintenance are increasing too. OPTIVENT ULTRA simplifies tasks for every stakeholder. Compact to install, easier to control is extremely neat to fit into buildings as it requires much less space than traditional dampers. The ultrasound technology measures the entire cross-section of the airstream, which makes it unsensitive to turbulence. It means that you no longer need safety distances around bends and T-pieces. A DCV system with VAV dampers can now easily be accomodated, also in existing buildings with limited space. is also an adaptable component in any DCV system, with Modbus communication as standard equipment. 6
Less energy costs, lower maintenance requirements PROBABILITY OF THE OCCUPANCY 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 DCV 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TIME Example of classroom occupancy and energy savings Constant air volume (CAV) ENERGY SAVINGS AVOID EXCESS WITH DCV TO REACH THE GOALS Employing Demand Controlled Ventilation is a smart way to save energy. When you adapt the air supply to momentary demand, energy can be saved without any sacrifice. The trick is to sense demand in temperature and CO 2 -levels and adapt the ventilation. A simple task with smart controls - made even simpler with as VAV damper. AIR FLOW As part of a Demand Control Ventilation system, OPTIVENT ULTRA is contributing to a operating cost with sound figures. With ever growing energy prices the calculation done yesterday very quickly gets better and better for each passing day. But contributes to longterm economy also in it s own right: Measuring air flow in the system by means of ultrasound is more precise, which means less energy consuming air flow, heating and cooling is made in excess of demand. With the ultrasound measuring technology, no physical pressure sensor inside the air stream causes turbulence and pressure drops requiring higher fan drive. Traditional pressure sensors will over time collect dust. The dust build-up affects both precision and pressure drop, causing unneccesary energy costs. To avoid this, regular cleaning is required. Without physical sensors, ultrasound lowers this maintenance cost too. (And when ductwork is brushed for regular cleaning, ultrasound sensors are completely unaffected) Investment 10% Count on saving with Maintenance 5% A system for Demand Controlled Ventilation, based on dampers is a good choice made even better with the advantages of ultrasound taken into account. Energy 85% LCC SAVINGS vs. traditional VAV dampers COST INVESTMENT IS THE SMALL PART if you consider a typical ventilation system, where it constitutes only around 10% during it s life cycle. Trad. VAV damper with static meas. Trad. VAV damper Cooling 30% Lighting and tecnical installations 10% Trad. VAV damper with T-sensor Trad. VAV damper with static meas. Trad. VAV + T-sensor Trad. VAV damper LCC savings vs. traditional VAV dampers Extra design, installation and commissioning costs vs TIME LCC SUMS IT ALL UP. When you take into account all the costs during a VAV-dampers lifetime, is in it s own class; Lower investment than a VAV-damper with static measuring and lower design and commissioning costs than VAV-dampers with T-sensor. Compared to a simple, traditional VAV-damper it has only a small initial price disadvantage, very soon compensated by outstanding operating costs. Ventilation 30% Heating 30% ENERGY CONSUMPTION IN BUILDINGS is possible to address to a large extent with an efficient ventilation system, as much of the costs are affected by it. 7
Invisible technology for concrete benefits In the continous efforts to develop our products and solutions we have always tried to think outside the box. For control of VAV dampers this has taken a very concrete turn. We wanted to be able to measure the air flow, with precision, from outside of the air flow. We realised it would give us a number of substantial benefits, both in the basic performance of the unit and during long term use. After several years of development at our research centre in Finland we have realised the technology in a landmark innovation for VAV dampers with several patents pending. No physical Sensor inside the airstream that collects dust, induces noise or affects the airflow, leading to turbulence and pressure loss. With Ultrasound we can detect without causing unwanted effect The development of ultrasound technology for air flow measuring is derived from a couple of physical facts. Sound waves are sensitive detectors with limited effect on the subject, a property giving us clear images of unborn babies. But sound waves are also sensitive for air movement. Try for instance shouting against the wind. DETECTION METHOD When analysing air movement with ultrasound waves, several methods can be used. We have chosen to use a technique called beam drift. The basic physics we use, are sound waves radiating from a sound source. They are invisible, but behave the same way as the uniform circle of ripples on water around a dropped pebble. In the case of sound waves the circles will drift off with the wind. UltraSound Technology by FläktGroup 8
Ultrasound technology * means much more compact installations, requiring no extra safety distances around the Damper. Ultrasound technology * components transmit and receive ultrasound. The entire airstream is analysed with high accuracy in both low and high air speeds. Intelligent Controls sense temperature and analyse average air speed with carefully developed ultrasound algorithms, resulting in high precision data with long-term reliability. The control panel is easy to operate with an intuitive human-machine interface. Settings are simple to adjust and the digital display shows the current air flow in real-time. * Patented technology by FläktGroup WITH ULTRASOUND TECHNOLOGY 1 2 3 AIR SPEED IS ZERO When air inside the duct isn t moving at all, the sound waves radiating from the transmitter are perfectly uniform. The twin sensors on the opposite wall will read the waves exactly at the same time, without any phase shift. AIR SPEED IS LOW When air moves at a low pace sound waves start drifting which can be observed by measuring the phase shift between the two receivers. As the entire cross-section of the air stream affects the waves, even small movements are registered correctly. AIR SPEED IS HIGH At full power the wave drift is larger, causing a larger phase shift being measured by the sensors. In this case a physical sensor inside the air stream would have caused a considerable pressure drop and with an obvious risk of turbulence causing undesired noise. 9
ADVANTAGES OVER TRADITIONAL TECHNOLOGY WITH ULTRASOUND FOR VAV DAMPERS IN DEMAND CONTROL VENTILATION SYSTEMS Demand Control Ventilation is generally considered as the way forward for ventilation, when environ- BIG Traditional VAV dampers mental regulations, rising energy prices and higher demands for health and comfort come into play. Ways to overcome problems with traditional VAV dampers are in the spotlight, and now addressed by with ultrasound technology. The advantages are clear, making it an interesting option in new installations. But several properties also are beneficial when retro-fitting into existing buildings. SMALL Air flow range Accuracy Influence of disturbances BEATS traditional VAV dampers in a series of important aspects. Influence of dust etc. Pressure drop of air flow meas. Noise SPACE SAVING REQUIREMENTS MAKES INSTALLATION SIMPLER requires no safety distances to bends and T-pieces, as ultrasound measures the entire air flow, which makes it resilient to turbulence. The space savings in a typical installation are substantial. is also the same dimension as the tubes and there is no need to convert for smaller dimensions as it covers a wider air flow range with optimum performance. 10
improvements WIDE AIRFLOW RANGE ACCURACY DISTURBANCE-SAFE With precise control over measurement and no sensors affecting the flow, OPTIVENT ULTRA covers a big range, from 0,5 m/s up to 15 m/s depending on size. Ultrasound measuring is extremely precise in the whole air flow range. At the smallest flow (0,5 m/s) accuracy is +/- 8%, improving to +/- 4% at higher velocities. Measuring flow with ultrasound increases resilience. Even with damper directly after T-piece or bend, the level of measuring precision is still good. WITHSTANDS DUST NO PRESSURE DROP LESS NOISE Without any pressure sensor inside the airflow, is not sensitive to dust, that can impair accuracy. Pressure drop for measuring air flow is zero with because there is no sensor in the airflow. This saves energy when fans need not compensate with increasing drive. Lower required system pressure and no turbulence around physical air flow sensors means noise is minimized and limits the need for space consuming silencers. surpasses traditional solutions in many fields and enables DCV in many buildings. LOW NOISE GOOD INDOOR AIR QUALITY FLEXIBILITY ACCURATE & VERSATILE ENERGY EFFICIENT MAINTENANCE FREE 11
THE DEMANDS MAY VARY BETWEEN APPLICATIONS BUT IS ALWAYS THE RIGHT CHOICE With a solid set of advantages compared to traditional solutions, is likely to make itself useful in a wide range of applications only on it s own merits. As part of a Demand Control Ventilation system it plays it s part with grace, making DCV possible and producing benefits for both economy and environment. 12
General Planning tips and checklist Checklist and planning tips for your configuration Min air flow in the room: Necessary fresh air flow for good air quality (10 l/s per person or acc. to floor area 0,5 (l/s)/m²) Max air flow in the room: According to the required cooling capacity calculation Specify min and max air for the working instructions. Suppy air ducts: Dimension according to the max air flow utilizing pressure regain method, or use a velocity of less than 4 m/s at the beginning of a branch with the rest of the duct having the same size. (Dimensioning tool e.g. MagiCAD) Minimize pressure drop of the ductwork by low air velocities which means energy savings, flexibility for the future changes and low noise and functional adjustment. Extract air ducts: Dimension according to the max air flow utilizing friction method (<1 Pa/m). Symmetrical ductwork keep air flow in designed values with different situations. When unsymmetric situation then use pressure control damper, EMPA. dimensioning: same size as duct, because air flow range is big (0,5 m/s 15 m/s in the duct). Select a silencer with the selection tool SELECT. Different air flows and pressure drop of the damper can be simulated. Check air pattern with SELECT in case of min and max air flow so that there is not problem with draught and ventilation efficiency. SELECT Select a silencer with the selection tool SELECT. Different air flows and pressure drop of the damper can be simulated. 13
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION Nursery, Play/ Resting room Childrens activities in nurseries varies from intense play to after-lunch rest. A flexible solution is required to adapt to the varying demands. Nurseries also put tough demands on the health aspect due to childrens sensitivity and frequent dust, bacteria and virus contamination. Tight budgets should rather be spent on staff and toys than on unnecessary operating costs for the ventilation system. PLANNING TIPS / CHECKLIST: Min air flow in the room: 18 l/s (floor area 36 m²) Max air flow in the room: 100 l/s (loads=965 W and T=8 C) Supply air duct: ø 200mm (v=3,2 m/s with max air flow) Extract air duct: diameter 200 mm (0,65 Pa/m) : BDER-44-020- 090 for supply and extract (33 db(a) right after silencer with q=100 l/s and P=80Pa) Air pattern (diffuser RAOB-125): max air velocity 0,19 m/s in the occupational zone with minimum air flow and 0,19 m/s with maximum air flow. Set up of air throw length constant 1,5 m VAV Damper OPTIVENT ULTRA VAV Damper OPTIVENT ULTRA Room controller 2x Active supply diffuser 2x Exhaust diffuser CO 2 -sensor and Temperature sensor Occupancy detector : ULDA-5-200-1 for supply and extract (same size as duct) CASE STUDY NURSERY, PLAY/RESTING ROOM MASS LIST: NURSERY/PLAYROOM Air management Optivent Ultra VAV-damper ULDA-5-200-1 (2 pcs), length 900mm, BDER-44-020-090 (2 pcs) Air diffusion Active supply diffuser (2 pcs) with CleanVent coating RAOH-315-3-5 and ATTD-125-315-1 Exhaust diffuser (2 pcs) with CleanVent coating HPKH-160-6-C and ATTD-125-160-1 Automation systems Room Controller (Modbus connection) STRA-04 Transformer STRZ-24-1 CO 2 -sensor STRZ-18-1-2 External temperature sensor STRZ-05-04 PIR Occupancy detector STRZ-09-1 14
PROPOSED DESIGN FUNCTIONS CO 2 -, temperature and occupancy sensors are observing room s indoor air climate Room controller receives messages from the different room sensors and controls the VAV function Room s ventilation system is constantly driven by demand controlled ventilation (from min. air flow to max. air flow) Active supply air diffuser OPTIMIX keeps precise throw length by using actuator BENEFITS Needs no safety distance in the tight duct installation in the corridor Dust resilienct and is splendid for rooms that contains lots of textile dust Reduced risk for draught close to the supply air device OPTIMIX (bunk bed) Silent ventilation system ( + OPTIMIX) provides good sleeping conditions Reduced need for maintenance work that create disturbances for the daily activities NURSERY, PLAY/RESTING ROOM area 25 m 2 Air volume +/- 100 l/s BDER Active supply diffuser with CleanVent coating Room Controller Modbus connection Tight hall Falce ceiling Occupancy detector on the wall VAV-damper CO 2 -sensor and External temperature sensor installed inside extract duct Exhaust diffuser with CleanVent coating 15
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION School/ Class room Children have a tough working environment and high demands on their performance. Good air quality and low noise is crucial to stay focused and alert. Dust and varying presence place further technical demands on the ventilation system. As does tight operating budgets on optimised energy consumption and economy. PLANNING TIPS / CHECKLIST: CO 2 -sensor and Temperature sensor Min air flow in the room: 25 l/s (floor area 50 m²) Max air flow in the room: 150 l/s (loads = 1450 W and T=8 C) Supply air duct: ø 250mm (v=3,1 m/s with max air flow) Extract air duct: ø 250mm (0,4 Pa/m) : BDER-44-025- 090 for supply and extract (34 db(a) right after silencer with q=150 l/s and P=80Pa) Air pattern (Activent-020): max air velocity < 0,15 m/s in the occupational zone with minimum air flow and 0,2 m/s with maximum air flow Occupancy Detector Exhaust Grille Room Controller 3x Activent Supply Air VAV Damper VAV Damper : ULDA-5-250-1 for supply and extract (same size as duct) CASE STUDY SCHOOL/CLASS ROOM MASS LIST: SCHOOL/CLASS ROOM Air management Optivent Ultra VAV-damper ULDA-5-250-1 (2 pcs), length 900mm, BDER-44-025-090 (2 pcs) Air diffusion Activent supply air distribution (3 pcs) systems ACTA-020-1-180-2-2 Exhaust grille with CleanVent coating SV1-550-200 + TGE-550-200-B Automation systems Room Controller (Modbus connection) STRA-04 Transformer STRZ-24-1 CO 2 -sensor STRZ-18-1-2 External temperature sensor STRZ-05-04 PIR Occupancy detector STRZ-09-1 16
PROPOSED DESIGN FUNCTIONS CO 2 -, temperature and occupancy sensors are observing room s indoor air climate Room controller receives messages from the different room sensors and controls the VAV function Room s ventilation system is constantly driven by demand controlled ventilation BENEFITS Needs no safety distance in the tight duct installation in the corridor Dust resilient VAV damper is splendid for class rooms where are crowded people Wide air flow range is needed in class room Silent ventilation system to create optimal environment for learning Reduced need for maintenance work that create disturbances for the daily activities SCHOOL / CLASS ROOM area 50 m 2 Air volume +/- 150 l/s Exhaust grille with CleanVent coating Occupancy detector on the wall Activent supply air distribution system No lower roof False ceiling Tight hall Room Controller Modbus connection VAV-damper BDER CO 2 -sensor and External temperature sensor installed inside extract duct 17
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION Office/ meeting room Office environments place high demands on the ventilation and air quality. Sedentary working conditions, with both tedious and stressful challenges, requires fresh air and good comfort to be able to perform. In meeting rooms, situations are even more demanding with loads varying between empty periods and crowded, intense long meetings. PLANNING TIPS / CHECKLIST: Min air flow in the room: 12,5 l/s (floor area 25 m²) Max air flow in the room: 100 l/s (loads=965 W and T=8 C ) Extract air duct: ø 200mm (0,65 Pa/m) : BDER-44-020- 090 for extract (33 db(a) right before silencer with q=100 l/s and P=80 Pa) 2x Chilled beam with PI-function and occupancy detector VAV Damper 3x Exhaust Valves CO 2 -sensor and Temperature sensor : ULDA-5-200-1 for extract (same size as duct) Room Controller CASE STUDY OFFICE/MEETING ROOM MASS LIST: OFFICE/MEETING ROOM Air management Optivent Ultra VAV-damper ULDA-5-200-1, length 900mm, BDER-44-020-090 Air diffusion Chilled beam WEGA II (2 pcs) IQII-240-11-07-2-1 and IQAZ-35-01-1-1-1 Water valve (2 pcs) heat. and cooling STRZ-70 Exhaust valve (3 pcs) with CleanVent coating KSO-125-C Automation systems Room Controller (Modbus connection) STRA-24 Transformer STRZ-24-1 CO 2 -sensor STRZ-18-1-2 External temperature sensor STRZ-05-04 Occupancy detector STRZ-09-03 18
PROPOSED DESIGN FUNCTIONS CO 2 -, temperature and occupancy sensors are observing room s indoor air climate Room controller receives messages from the different room sensors and controls the VAV damper (extract duct) and chilled beam s PI actuator movements Room s ventilation system is constantly driven by demand controlled ventilation BENEFITS Needs no safety distance in the tight duct installation in the corridor Wide air flow range is needed in meeting room Silent ventilation system guarantees good meeting conditions Reduced need for maintenance work that create disturbances for the daily activities OFFICE / MEETING ROOM area 25 m 2 Air volume +/- 100 l/s (10 persons) WEGA II chilled beam with PI-function Exhaust valves with CleanVent coating False ceiling Occupancy detector integr. in the beam CO 2 -sensor and External temperature sensor installed inside extract duct Room Controller Modbus connection Ø125 Heating and cooling pipes Tight hall BDER VAV-damper 19
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION Business center/ Auditorium Big rooms with lots of volume pose specific challenges on the ventilation system. Large crowds, sometimes bringing outerwear, produce large amounts of dust. Capacity must also be dimensioned to deliver enough fresh air to ensure comfort with a crowded house. Still delicate moments in a concert or monologue can require almost complete silence to come through. PLANNING TIPS / CHECKLIST: Min air flow in the room: 150 l/s (floor area 300 m²) Max air flow in the room: 800 l/s (80 people) vs general rules Supply air duct: 2x ø 315 mm (v=5,13 m/s with max air flow) Extract air duct: 2x ø 315 mm (0,85 Pa/m) : ULDA-5-315-1 for supply and extract (same size as duct) : BDER-44-031- 090 for supply and extract (53 db(a) right after silencer with q=100 l/s and P=80Pa) Air pattern (diffuser DASH-100): max air velocity 0,1 m/s in the occupational zone with maximum air flow Room Controller VAV Damper VAV Damper OPTIVENT ULTRA CO 2 sensor and Temperature sensor 40 x Supply Air Diffuser 15 x Exhaust Diffuser Occupancy Detector CASE STUDY BUSINESS CENTER/AUDITORIUM MASS LIST: BUSINESS CENTER/AUDITORIUM Air management Optivent Ultra VAV-damper ULDA-5-315-1 (4 pcs), length 900mm, BDER-44-031-090 (4 pcs) Air diffusion Supply diffuser (80 pcs) integrated behind steps DASH-100-0 Exhaust diffuser (16 pcs) with CleanVent coating HPKH-160-6-C and ATTD-125-160-1 Automation systems Room Controller (Modbus connection) STRA-04 Transformer STRZ-24-1 CO 2 -sensor STRZ-18-1-2 External temperature sensor STRZ-05-04 PIR Occupancy detector STRZ-09-1 20
PROPOSED DESIGN FUNCTIONS CO 2 -, temperature and occupancy sensors are observing room s indoor air climate Room controller receives messages from the different room sensors and controls the VAV dampers Room s ventilation system is constantly driven by demand controlled ventilation BENEFITS Dust resilient construction is needed for auditorium that contains a lot of fabric dust from people s clothes Accurate air flow measuring and wide air flow range Silent ventilation is necessary during shows and recordings Reduced need for maintenance work that create disturbances for the daily activities Exhaust diffuser with CleanVent coating BUSINESS CENTER / AUDITORIUM area 300 m 2 Air volume +/- 800 l/s (100 persons) CO 2 -sensor and External temperature sensor installed inside extract duct Occupancy detector on the wall Room Controller Modbus connection Supply diffuser integrated behind steps BDER VAV-damper 21
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION Hospital/ Patient room Medical facilities have high requirements. Also in patient wards demands are high. Weak and sick care recipients should be given good recovery conditions and need no extra strain from bad air quality or comfort. A special demand is put on the ventilation system to be maintenance free, when premises are occupied 24/7. PLANNING TIPS / CHECKLIST: Min air flow in the room: 12,5 l/s (floor area 25 m²) Max air flow in the room: 38 l/s (loads = 370 W and T=8 C) Supply air duct: ø 125mm (v=3,1 m/s with max air flow) Extract air duct: ø 125mm (0,4 Pa/m) : ULDA-5-125-1 for supply and extract (same size as duct) : BDER-44-012- 060 for supply and extract (36 db(a) right after silencer with q=38 l/s and P=80 Pa) Air pattern (diffuser DYVB-125): max air velocity < 0,15 m/s in the occupational zone with minimum air flow and 0,16 m/s with maximum air flow CO 2 -sensor Temperature sensor VAV Damper OPTIVENT ULTRA Exhaust Grille CASE STUDY HOSPITAL / PATIENT ROOM VAV Damper OPTIVENT ULTRA Room Controller Supply nozzle diffuser Occupancy Detector MASS LIST: HOSPITAL / PATIENT ROOM Air management Optivent Ultra VAV-damper ULDA-5-125-1 (2 pcs), length 600mm, BDER-44-012-060 (2 pcs) Air diffusion Wall nozzle diffuser (2 pcs) with CleanVent coating DYVZ-125 and ATVA-125-1 Exhaust grille with CleanVent coating SV1-550-200 and TGE-550-200-B Automation systems Room Controller (Modbus connection) STRA-04 Transformer STRZ-24-1 CO 2 -sensor STRZ-18-1-2 External temperature sensor STRZ-05-04 PIR Occupancy detector STRZ-09-1 22
PROPOSED DESIGN FUNCTIONS CO 2 -, temperature and occupancy sensors are observing room s indoor air climate Room controller receives messages from the different room sensors and controls the VAV dampers Room s ventilation system is constantly driven by demand controlled ventilation BENEFITS Needs no safety distance in the tight duct installation in the corridor Dust resilient construction is needed for the patient room because of fabric dust. Silent ventilation guarantees good recovery conditions for the patient Reduced need for maintenance work that create disturbances for the daily activities HOSPITAL / PATIENT ROOM area 25 m 2 Air volume +/- 38 l/s BDER VAV-damper Occupancy detector on the wall Tight hall No lower roof Wall nozzle diffuser with CleanVent coating Room Controller Modbus connection CO 2 -sensor and External temperature sensor installed inside extract duct Exhaust grille with CleanVent coating 23
GUIDE TO PLANNING/ DIMENSIONING/CONFIGURATION Residential/ Apartment In our homes we sometimes don t enjoy carefully constructed ventilation systems and good air quality. Still this is the place we spend more time than anywhere else. The domestic activities are varying in their demands. Moist in the bathroom, heat and smells in the kitchen, dust from textiles in the laundry room, not to speak of the silence required in the bedroom to sleep well. PLANNING TIPS / CHECKLIST: Min air flow in the room: 7 l/s (apartment: -60% vs designed air flow, 18 l/s) Max air flow in the room: 23 l/s (apartment: +30% vs designed air flow 18 l/s) Supply air duct: ø 100 mm 2,9 m/s with max air flow) Extract air duct: ø 100 mm (1,1 Pa/m with max air flow) : ULSA-5-100-1 for supply and extract (same size as duct) : BDER-71-010- 060 for supply and extract (37 db(a) right after silencer with q=23 l/s andδp=80 Pa Air pattern (diffuser STQA-100-C): max air velocity 0,12 m/s in the occupational zone with minimum air flow and < 0,15 m/s with maximum air flow. VAV damper OPTIVENT ULTRA Manual Room Controller Connection Box CASE STUDY RESIDENTIAL / APARTMENT Exhaust Valve Supply Valve Supply Valve Kitchen Hood MASS LIST: RESIDENTIAL / APARTMENT Air management Optivent Ultra VAV-damper ULSA-5-100-1 (2 pcs), length 600mm, BDER-71-010-060 (2 pcs) Mounting clamps (4 pcs) HVSZ-03-100 Air diffusion Exhaust valve with Clean- Vent coating KSO-100-C Supply valve (2 pcs) with CleanVent coating STQA-100-C Kitchen Hood (ILOXAIR) with stove guard ROSALA-600-7-7-1-1 Automation systems Connection box with transformer and cooker hood control equipment HVLZ-02 Manual room controller HVSZ-01 24
PROPOSED DESIGN FUNCTIONS Manual room controller with 3 positions (non-occupancy, normal air flow and max air flow) Room controller is also connected to the kitchen hood (equipped with microswitch) When kitchen hood operates at maximum, increases supply air and also decreases extract air to retain balance is pressure independent for duct pressure fluctuations BENEFITS Needs no safety distance in the tight duct installation in the corridor Extremely accurate air flow measurement guarantees the right pressure balance in the apartment A silent ventilation system guarantees good sleeping conditions in the bedroom Reduced need for maintenance work that create disturbances for the daily activities Dust resilient construction is splendid for laundry room/ bath room, that contains lots of fabric dust RESIDENTIAL / APARTMENT area 25 m 2 Air volume +/-18 l/s Staircase Manual room controller False ceiling VAV-damper False ceiling No lower roof Exhaust valves with CleanVent coating BDER Supply valve with CleanVent coating Kitchen Hood (ILOXAIR) with stove guard 25
DESIGNED FOR UNIQUE PRECISION EQUIPPED FOR SIMPLE INTEGRATION is easily integrable in any ventilation solution. It follows accepted standards for control and has a full-fledged communications interface. 1 Value selector 2 Function selector The controller can be operated via Modbus or with analogue signal, which is set to a standard value of 0 10V on delivery. The address can be selected from the range 1 247. With the function selector in the adr position, select the desired address using the value selector. Hardware settings (baudrate, parity and stop bits) can be changed by setting the function selector to adr and then turning the value selector until the parameter 2in is displayed. This opens up a submenu, which is indicated by a small circle on the display. Modbus load ¼ Modbus registers are available in the technical documentation. 3 Display 2 1 3 26
Technical data Sizes 100, 125, 160, 200, 250 and 315 mm For easy configuration, select Fläkt Select! Material Galvanized steel Air velocity 0,5 15 m/s Running time 100 s / 90 Power supply 24 V AC/DC Ambient temperature +5 C...+50 C Storage temperature - 20 C...+80 C Transport temperature - 40 C...+70 C SELECT is a new web-based selection tool which focuses on indoor air comfort products, providing customers with great flexibility when configuring solutions via its user friendly interface. Currently this tool is available for indoor air climate products in the categories Air Diffusion, Air Distribution and Air Management. Ambient humidity Service Life Maintenance 5 95 % r.h. non condensing (EN 60730-1) >60.000 cycles (0 95 0 ) >1 000 000 partial cycles (max. +/-5 ) Maintenance-free TWO EXAMPLES Ordering codes ULaA-b-ccc-d Flow variator, round Execution (a) S = without insulation, D = with insulation Sound calculation Actuator (b) 5 = compact controller for Modbus 227VMZ-MB 6 = compact controller for Modbus, IPSUM version 227VMZ-MB Size (ccc) 100, 125, 160, 200, 250, 315 Material (d) 1 = Corrosivity class C3, galvanized sheet steel Air pattern 27
FG_DC-10063GB_Optivent Ultra_AP_20180212_R0 Copyright 2018 FläktGroup WWW.FLAKTGROUP.COM 10063 FläktGroup is the European market leader for smart and energy efficient Indoor Air and Critical Air solutions to support every application area. We offer our customers innovative technologies, high quality and outstanding performance supported by more than a century of accumulated industry experience. The widest product range in the market, and strong market presence in 65 countries worldwide, guarantee that we are always by your side, ready to deliver Excellence in Solutions. PRODUCT FUNCTIONS BY FLÄKTGROUP Air Treatment Air Movement Air Diffusion Air Distribution Air Filtration Air Management & ATD s Air Conditioning & Heating Controls Service» Learn more on www.flaktgroup.com or contact one of our offices