Ventilation in balance

Transcription

1 Ventilation in balance irmaster Cv - domestic CityVent TM

2 Ventilation in balance Fresh air is a human right. It is with this in mind that irmaster develops and presents irmaster energy-efficient and low-noise individual ventilation systems for homes and comfort ventilation. With irmaster s efficient ventilation systems, the building s energy consumption is reduced and the comfort level is increased. irmaster s product range is: irmaster M decentralized ventilation systems designed for comfort ventilation. irmaster CV built-in semi-decentralized ventilation systems for apartment and comfort ventilation. cityvent CV is the name of irmaster s range of semi-decentralised ventilation systems for installation above a suspended ceiling. The CV range consists of a CV 80 model and soon also a CV 200 model and a CV 1000 model. The CV 80 and CV 200 models have been developed in accordance with our CityVent TM concept, making them particularly suitable for individual energy efficient ventilation in low-rise residential developments and multi-storey buildings. CV 1000 is particularly suitable for energy efficient ventilation in comfort rooms such as classrooms, institutions, offices, etc. CV 80 and CV 200 are individual systems which save on energy and only ventilate as required in the specific home/ apartment. This prevents energy being wasted and minimises installation and operating costs. The systems are constructed using the most energy-efficient quality components available on the market. Despite this, we have succeeded in introducing irmaster CV systems at competitive prices. CONTENTS CityVent 3 No compromise on design as standard 4-5 Ventilation has never been more important 6 Good indoor climate 7 Case apartments 8-9 Installation irmaster CV has it under control Intuitive control 15 Local or remote CTS 15 Testing and development Guide for designing 18 Guide for ordering 19 Components Fresh air is a statutory requirement 22 CV 80/ In comparison with the larger, traditional systems, this system saves a great amount of energy and installation fees as there is only one short ducting in each residential unit. This avoids pressure drops and installation costs associated with large duct shafts. The greenest choice on the market Ventilation units from irmaster have some of the lowest energy consumption levels on the market. This is the result of energy-efficient components and extremely low consumption when transporting air. Power consumption 22 W 3

3 No compromise on design as standard Built-in condensation pump utomatic bypass 0-100% F5 or F7 cassette filters Countercurrent heat exchangers (up to 85/95% efficiency with/without condensation) Latest EC engine technology from German ebm-papst Flow optimised EPP construction Option for connecting to central operation control FRESH IR The CV range ensures a good indoor climate with fresh air for residents. LOW ENERGY CONSUMPTION The CV range is supplied with the latest EC engine technology and countercurrent heat exchangers, ensuring one of the very lowest energy consumptions on the market. PPLICTION The CV range comes in various sizes. CV 80 for smaller homes of up to 50 m 2, the larger CV 200 for homes up to 130 m 2 and the CV 1000 for classrooms, offices, etc. LOW NOISE LEVEL The CV range for homes is as quiet as it is efficient. The noise level during operation reaches a maximum of 30 db(). The compact construction and a height of just 27 cm makes irmaster CV an extremely flexible ventilation solution. UTOMTIC CONTROL DEVICES The CV range is supplied with tried and tested automatic control devices, ensuring problem-free operation, even under the most difficult conditions. In larger buildings, the automatic control devices can be connected to central operation control. Ventilation is performed as required and the build-up of damp can be prevented via an installed moisture sensor. BYPSS ND NIGHT TIME COOLING s standard, the CV range is supplied with a builtin bypass to let cooling fresh air into the building during the summer. The CV range also has built-in automatic night time cooling with adjustable temperature level. 4 5

4 Ventilation has never been more important New energy efficient buildings are insulated amazingly well. This is good for your heating bill, but can have a negative impact on the indoor climate if ventilation has not been incorporated into the building. When buildings are constructed with tighter insulation to maintain the energy limits, there is a huge risk of consequential damage as a result of a poor indoor climate. poor indoor climate is best avoided by regular airing. The best and cheapest way to achieve this is by controlled ventilation and recovering the heat. GOOD INDOOR CLIMTE FOR LESS THN DKK 1. DY USER CCESS Before, a poor indoor climate was often avoided because the building was not naturally perfectly insulted, but this also required more energy to heat and maintain a comfortable temperature. The combination of heating and airing kept the humidity down. In recent years there has been an increased focus on energy consumption and we now insulate our homes better to avoid heat loss. Problems with mould can often occur in parts of the building in which it is difficult to retrofit insulation and the places where there is inadequate airing. VOID MOULD typical consequence of inadequate airing is often mould forming in the building, which is very unhealthy for people living there but also very expensive to eliminate. irmaster ventilation systems are some of the most energy efficient on the market. This means that they also have some of the lowest operating costs on the market. Renovation and maintenance costs are also minimised, resulting from a poor indoor climate, as living conditions and work efficiency are improved. Note: Calculations are based on a CV 80 in a normal Danish reference year, 80 m 3 /h and constant operation. Other calculation conditions may be requested from irmaster /S. 6 HOUSE DUST MITES House dust mites are another consequence of a poor indoor climate. House dust mites thrive in rooms where the air humidity level is high. t worst, house dust mites are an allergen. The most efficient prevention is a relative humidity of under 45% during the winter months. Ventilation reduces the humidity and ensures a healthy and comfortable indoor climate. 7

5 The flexible ventilation solution The CV range for homes has a very small installation height of only 27 cm, making it easy to integrate the unit above suspended ceilings. 27 cm The CV range for homes has a very small installation height of only 27 cm, making it easy to integrate the unit above suspended ceilings. YOUTH HOUSING PROJECT For example, CV 80 is installed in a youth housing project with 175 apartments, which were built in accordance with the 2020 building class. Strict energy requirements needed to be maintained as well as the building being constructed as optimally as possible. CV 80 was chosen because it could save on operating and building costs. In addition to the extremely low energy consumption and the high efficiency of the heat exchanger, advisors and building owners made the summary assessment that the following benefits were to be derived from using the CV 80: FLEXIBLE INTERIOR DESIGN CV 80 is supplied with a patent pending flexible connection cube, meaning there are no bends near the unit, thereby making installation cheaper and easier. No fire damper Lower installation height Ready installation of one apartment at a time Regulate the correct rooms without duct shafts Fewer adjustments Direct billing on each of the resident s consumption meters 8 9

6 Installation TWO BEDROOM PRTMENT The CV 80 is installed above the ceiling in the bathroom. Examples Bathroom Bedroom Intake and exhaust through the wall grille in the exterior wall. Intake Fresh air Exhaust Exhaust air Entrance Livingroom Roof HOUSING BLOCK The CV 80 is installed in the second room 2. floor Living room Bathroom with the intake through a wall grille in the exterior wall and an exhaust through the exhaust cap in the ceiling. Kitchen CV 80 with intake and exhaust through wall grille in living room and first floor. 1. floor Kitchen Entrance Bathroom The ventilation units are installed above suspended ceilings with ducted inlet and extraction to rooms that require ventilation. Balcony Bathroom Bedroom Ground floor Fire conditions ONE BEDROOM PRTMENT The CV 80 is installed above the ceiling in the bathroom. Integrated exhaust max. 10 Pa Insulation NB: OPTION FOR N INVERTED UNIT. Intake and exhaust through the wall grille in the exterior wall. Living room Fire and smoke dampers Fire and smoke dampers Fire insulation Insulation Bathroom Kitchen Bathroom Kitchen Fire insulation Living room Fire cell partition Fire section partition Bemærk: nlæg er i DS 428: 2011 benævnt som "C". Fire section partition 10 11

7 IRMSTER Controlling the indoor climate In high-efficiency modern ventilation systems, there is a range of vitally important control processes, that need to be managed in order to avoid operational problems. CONDENSTION With heat recovery reaching as high as 95%, exhaust air is cooled significantly in the countercurrent heat exchanger. However, this can lead to condensation in the exchanger. Condensation is collected in a condensation trough (standard). The collected condensation is pumped away by the standard installation condensation pump into a drain in the building. In the event of a pump malfunction and a consequential high level of condensation, a float switch in the condensation trough sends an alarm to the controller. This starts a short process whereby an attempt is made to remove the condensation by increasing the extraction and stopping the airflow. If this is unsuccessful, the system controller will shut down and a condensation alarm will sound on the control panel. FROST PROTECTION t very low outdoor temperatures, the exhaust temperature of the countercurrent heat exchanger can fall so low that the condensation inside it turns to ice. Before this happens, the controller starts a process where the extraction airflow is increased and the inlet airflow is reduced. Freezing is prevented by increasing the exchanger s exhaust temperature. lternatively, an electrical heating surface can be installed in order to maintain balanced operation in a greater temperature range at low temperatures. t extremely low outdoor temperatures, part of the cold intake air is directed around the exchanger with the aid of the bypass damper and onto a heating surface which can heat the air to the desired inlet temperature. This way, the discharge air is cooled less in the exchanger and freezing is prevented. FOR LOW INLET IRFLOW TEMPERTURE If the desired inlet airflow temperature cannot be maintained at low outdoor temperatures, the controller automatically reduces the inlet airflow and increases extraction. By doing this, the inlet airflow temperature rises again to the desired level. lternatively, an electrical heating surface can be installed. The heating surface heats the inlet airflow air after the exchanger if the temperature is under the desired inlet airflow temperature. This ensures high levels of comfort from the system. The controller continuously checks the temperature in the system and post heating is therefore only activated when needed. The CV range is equipped with high-efficiency countercurrent heat exchangers which ensure an extremely high level of heat recovery. Because of this, the heating surface is only used to even out the minimal heating loss from ventilation. UTOMTIC BYPSS The CV range has an automatic bypass built-in as standard. If the inlet airflow and room temperatures rise (e.g. due to strong sunlight) above the desired level, the controller opens the bypass as required. This means that the fresh air is directed around the exchanger and unnecessary heating is avoided. This is especially important for the indoor climate in new airtight homes. NIGHT TIME COOLING FREE COOLING The CV range has an automatic night time cooling function with adjustable temperature level built-in as standard. 12 The built-in countercurrent heat exchanger is shown here. The CV 80 has been designed in modern, lightweight materials. 13

8 Intuitive operation NEWS New control panel We are introducing a new control panel in the fourth quarter of Main functions of the control panel: Control of airflow Start/stop function Holiday-mode larm function The CV range comes supplied with an intuitive control panel, so that operating adjustments can be performed quickly and easily on the spot. You can also program the unit in line with the kind of operation you want. The control panel has a clear, straightforward LCD display, which indicates status and functions. The controller features an extensive range of functions that come as standard, such as programmable timer, bypass control, night time cooling, basic ventilation and CO 2 dependent airflow regulation and control in relation to the humidity are also possible. Choose irmaster CTS or KNX, BCnet TM, LON or ModBus CTS CTS CTS* CTS* CTS* CV 1 CV 2 CV 3 The figure shows an arbitrary CTS system, with a CTS central control with connection to a number of irmaster units. SOFTWRE ND HRDWRE FOR THE CV CTS SYSTEM LLOWS YOU RNGE SUPPORTS VRIOUS CTS SYSTEMS: TO CONTROL ND MONITOR MNY CV KNX BCnet /IP BCnet MS/TP LON MODBUS RTU RS485 UNITS CENTRLLY, INCLUDING: Starting/Stopping the system djusting the temperature and airflow setpoint Releasing night time cooling (only runs when actually needed) Temperature sensors can be read Bypass position In larger projects where several CV units are Filter alarm installed, it may be beneficial to be able to moni- Unit status tor the operation of each individual ventilation Hygrostat unit either via a local irmaster CTS solution or by CO 2 sensor 14 connection to a larger integrated CTS system. PIR sensor 15

9 M 100 in a test installation. The indoor climate room has been designed for all sorts of tests, but it can also be used to visualise the airflow using smoke tests, which can be reviewed by video from the observation corridor, so that your presence does not cause any disturbances. Indoor climate chamber Our 80 m 2 indoor climate chamber is a very flexible space where, in under two hours, you can design a layout for a new system, e.g. a 1:1 simulation of the customer s special conditions. We can design a variable ceiling height from 0 to 4.5 m and an inclined ceiling of optional orientation. In addition, underfloor heating and humidifiers simulate indoor heat and moisture loading. The testing room has been installed up against an outdoor climate chamber. We measure: coustic pressure Temperatures Humidity CO 2 level ir speeds for mixing ventilation and displacement ventilation Testing and development Outdoor climate chamber In the 36 m 2 outdoor climate chamber we can simulate temperatures from approx. -20 C to 40 C with controllable air humidity. This is used to test the operation of systems in a variety of climatic situations. 16 irmaster s ventilation solutions will be the best solutions in energy efficiency and for a healthy indoor climate. That s why we allocate a great deal of our total resources to product development and documentation. In total, more than 10% of our employees work with development and documentation. We cooperate with external universities with new technology, including albord University (U) and the Technical University of Denmark (DTU) and we take part in several research-based projects concerning efficient decentralized ventilation solutions for the future for the various renewable energy tasks that are present in the current housing stock. Our electronics are EMC tested according to the strictest requirements by recognised laboratories (EMC = Electromagnetic compatibility). ll data during an operating test is recorded in context. This gives us an unparalleled overview of the controller s reactions in various operating conditions. During the analysis of the constant data stream, both the controller s parameters and the product s geometry can be optimised. acoustics Our development department uses acoustic testing and measuring facilities and measures reverberation times, sound pressure levels, noise effect level by frequency band and soundproofing throughout the unit. The testing room is a vibration-free space which was designed in the development department s facilities and is constructed with 150 mm thick concrete walls and ceilings. This dampens external noise. The reverberation time in the indoor climate chamber can be varied and can reproduce a time from approx. 0.4 s to 1.0 s. In order to avoid vertical waves, the room has been created with non-parallel walls. The maximum disturbance from e.g. heavy traffic is a maximum of 0.3 db() with little effect and the special design results in a minimal background noise level. 17

10 Guide for designing low-pressure duct systems GUIDE FOR ORDERING See drawings page 27 Type CV 80 Flow Extraction Intake Exhaust Grille R (right side) B (rear) B (rear) G0 (standard) 2 x The requirement for low energy consumption for transporting air imposes demands on the correct dimensioning of the duct system. To help with the correct dimensioning of the duct system, the example below shows a system that is correctly dimensioned. For additional dimensioning help, please contact our skills centre by phoning One option from each column can be selected. L (left side) T (top) S (side) For example: CV 80 is required with extraction from the room to the right, intake of fresh air through the wall behind the system and exhaust leading above the ceiling, ducts for both exhaust air and fresh air. Product name = CV 80 R B T G0 T (top) S (side) G1 (extraction grille) + grille G2 (inlet airflow grille) Grille + Example 33 Pa pressure drop / Ø100 Equipment Product no. INTKE irmaster wall grille Corner fittings (for ceiling installation of the system) djustable fittings (for extending the corner fittings) Wall grille Ø100 EXTRCTION 2 Check valve Reduction T pipe EXHUST irmaster wall grille Damp-proof seal for pipes Ø80 Ø Roof penetration kit roof felt Roof penetration kit tiles Fresh air filter F CV 80 Control panel LONWORKS module EXTRCTION 1 Check valve EXTRCTION 1 Duct length: 7,25 m irflow: 54,0 m 3 /h Pressure drop: 18,1 Pa INTKE Duct length: 6,0 m irflow: 80,0 m 3 /h Pressure drop: 14,1 Pa CV 80 electrical heating surface Hygrostat, built-in Hygrostat, enclosed loose EXTRCTION 2 Duct length: 10,0 m irflow: 80,0 m 3 /h Pressure drop: 18,1 Pa INLET Duct length: 6,0 m irflow: 80,0 m 3 /h Pressure drop: 18,1 Pa INLET Check valve EXHUST Duct length: 6,0 m irflow: 80,0 m 3 /h Pressure drop: 14,1 Pa Modulating CO 2 sensor, wall-mounted Modulating CO 2 sensor, built-in PIR/motion sensor See components pages

11 Components for the CV range Options: Standard: The irmaster CV range is a technological advance within energy efficient ventilation for small homes and apartments. CO 2 SENSOR is used as an efficient energy saving system demand control that automatically adapts the ventilation level to the CO 2 load in each individual room. Can be supplied for room installation or built-in to the system. EC MOTORS built-in to the EPP construction. Efficient EC motors help to deliver a total energy consumption (SFP) < approx. 950 joule/m 3 including duct counterpressure. The motors can be regulated independently of each other. COUNTERCURRENT HET EXCHNGER with documented efficiency of up to approx. 85% according to EN 308 and up to 95% with condensation. Control panel irmaster CV is supplied with an intuitive control panel, so that operating adjustments can be performed quickly and easily on the spot. PIR/MOTION SENSOR ensures low energy consumption by only starting up the ventilation if motion is detected in the room. The delay can be set at any time using the controller. BYPSS with automatic regulation of 0-100% air flow around heat exchangers, depending on temperatures and setpoints. lso used for automatic night time cooling. TEMPERTURE SENSORS on exhaust, intake, extraction and inlet ensures correct operation in synergy with the advanced programming of the irmaster controller. HYGROSTT ensures that humidity is automatically kept down. Can be supplied for room installation or built-in to the system. ELECTRIC HETING SURFCE can be used in extremely low outdoor temperatures or where fully balanced operation is required all year round. DOUBLE MOTORISED MIN DMPER ensures that no air penetrates the system when it is not in operation. FILTERS on both extraction and exhaust air protect the engines and heat exchanger from dirt. F5 filter as standard and optional F7 filter. Easily change the filter by removing the filter cassette. COMMUNICTION MODULE ensures that irmaster CV can be connected to network systems. SEL around pipes used for wall and roof penetration. Ensures a sealed vapour barrier around the pipe penetration sheathing. 20 CONDENSTION TROUGH WITH FLOT stops the CONDENSTION PUMP with a lifting height of up to six WLL GRILLE. roof penetration kit can also be FITTINGS for securing directly to the ceiling or to adjust 21 system if the condensation pump fails or the condensation metres as standard. supplied, please consult your dealer for more information. the height. pump s feed/outlet becomes clogged.

12 FRESH IR ND ENERGY EFFICIENCY RE LEGL REQUIREMENT Ventilation in apartments and multi-storey buildings that complies with the most recent energy standards With the imminent stricter energy limits for buildings, as a result of implementing new legislation, air exchange with energy efficient ventilation units will be a necessity in many buildings from now on. This will apply to new constructions as well as existing buildings. THE TREND IN ENERGY LIMITS for buildings is heading towards significantly increased requirements to minimise the total energy consumption per m². large proportion of a building s energy consumption goes on ventilation and heating and therefore, in future, great demands will be placed on energy efficient ventilation units and heat exchangers and fans with high levels of efficiency. irmaster CV for homes is one of the most installation-friendly and energy efficient ventilation systems on the market

13 CV 80/200 Technical Data CV 80 CV 200 Capacity m 3 /h Weight, Standard unit kg Colour, Case RL black black Dimensions (L/H/W) mm 1170 x 275 x 560 Condensation pump Flow rate l/h Pump height m 6 6 Product launch 1. quarter 2013 Electric heating surface Thermal cut-out, automatic reset C 70 Thermal cut-out, manual reset C 120 CV 80 capacity (%)* CV 80 Power consumption (W) irflow (m3/h) irflow (m3/h) Electrical connection (with PE) Unit voltage V 1~230 Frequency Hz 50 Maximum power consumption W 22 Current 0.16 Power factor 0.60 Electric heating surface consumption W 500 Current 2.2 Max. leakage current system m 1 CV 80 Sound pressure level of the case (db()) irflow (m3/h) CV 80 SFP (W/(m 3 /s)) irflow (m3/h) CV 80 External pressure drop (Pa) CV 80 Temperature efficiency (%) irflow (m3/h) 1: CV 80 (30 db()) 2: CV80 ducts 3: Wall grille 4: 1000 Ws/m 3 5: 1200 Ws/m 3 6: 1400 Ws/m irflow (m3/h) * measured without condensation, if condensation is included, efficiency rises up to 95%. NOISE EFFECT LEVEL CV80 verage frequency (Hz) L W L p / 1 m distance Standard flow 80 m 3 /h 32 Pa back pressure MXIMUM FLOW 90 m 3 /h 42 Pa back pressure db() db() Case* Inlet** Extraction** Intake** Exhaust** Case* Inlet** Extraction** Intake** Exhaust** * Noise effect level ( weighted average) for emissions from the case, measured in accordance with EN/ISO 3744 ** Noise effect level ( weighted average) for emissions to duct, measured in accordance with EN/ISO 5136 Note: Data for 1/3 octave bands may be requested from irmaster /S We are not liable for any errors and reserve the right to make changes. See for updated documentation.

14 CV 80 LBB Extraction left - Intake back - Exhaust back CV 80 rbb Extraction right - Intake back - Exhaust back Exhaust Condensate Intake Inlet Extraction Electrical Connections Electrical Connections Exhaust Condensate 560 Intake Extraction Inlet CV 80 LTT Extraction left - Intake top - Exhaust top CV 80 RTT Extraction right - Intake top - Exhaust top 560 Exhaust Exhaust 560 Electrical Connections Condensate Intake Intake Condensate Electrical Connections Extraction Inlet Inlet Extraction We are not liable for any errors and reserve the right to make changes. See for updated documentation.

15 Industrivej 59 DK ars Denmark Tel Fax info@airmaster.dk Distributor in Belgium: Codumé Rue d'enghien Bruxelles Tel. 02 / Fax. 02 / We are not liable for any errors and reserve the right to make changes. See for updated documentation.