Itho CVE Technical Brochure
Contents
1. CVE ECO 2 system 3 Continuous Mechanical Extract Appendix Q Eligible Climate for life A Climate for Life Itho was founded in 1919 In the years since the company has established itself as the market leader in indoor climate systems Complementing its unrivalled ventilation systems Itho also designs and manufactures high efficiency boilers solar hot water systems ground source heat pumps and other energy saving systems at its headquarters in the Netherlands Itho UK Ltd based in Burton on Trent is part of the Itho Daalderop Group and was the company s first subsidiary outside of the Netherlands Reduced energy consumption yet improved comfort The healthiest possible interior atmosphere yet lower running costs These are the seemingly contradictory goals that we ve been achieving at Itho for more than 90 years proving that we can enjoy a superior living environment within the home and protect our natural environment We call this a Climate for Life This means that the homes you build can provide fresh filtered air cost less to ventilate and emit fewer emissions About your CVE ECO 2 Installation and user manual Your CVE ECO 2 installation and user manual will be supplied with the unit Further copies are available from Itho UK Ltd or online at www itho co uk Location The CVE ECO 2 can be installed in closed rooms lofts storage rooms or airing cupboards2. st 2008 it became mandatory for landlords to order an EPC for property offered for rent with the requirement applying to property for sale becoming effective on 21st May 2010 The Code measures the sustainability potential of a new dwelling and provides a rating for the whole home as a package It uses a 1 to 6star rating system to indicate the energy saving credentials of anew home and sets minimum standards for energy and water use In England the Code replaces the EcoHomes scheme developed by the Building Research Establishment BRE The Code also gives buyers better information about the environmental impact of their new home and its potential running costs It will inform future developments of the Building Regulations regarding carbon emissions homes and give developers Increased regulatory certainty m 3 il FEET H PT eerre INN fe sH seanasse steed 5 33 i T f MNN Be l i ih TL Se i 2 aw AEE Kn gt i qN il EET on www Le eS amp lt eae aed TP mm i ig ae 1 k mmm i i t q Ag Hi m 11 me HR 1 FEER 4 T km g an 7 1 i SB i so e a z a m gt a 4 mv E p z gt
3. 6 minimum 7 low Capacity Power 3 middle 4 high 5 maximum 8 middle 9 high maximum Noise levels Lw A 250 Hz dB A 500 Hz dB A 1000 Hz dB A 2000 Hz dB A 4000 Hz dB A Setting 1 radiated 75 m3 h 11 Pa dJa 35 8 31 7 25 7 20 5 18 3 34 9 Setting 2 radiated 135 m3 h 45 Pa 50 1 42 5 37 9 12 253 23 5 39 9 Setting 3 radiated 225 m3 h 100 Pa 51 4 49 1 48 5 40 8 37 5 29 1 48 3 Setting 3 max radiated 225 m3 h 150 Pa 57 1 56 0 55 9 36 3 33 2 36 5 54 3 Setting 1 outlet 75 m3 h 11 Pa 42 3 33 3 27 2 23 0 12 5 3 9 30 2 Setting 2 outlet 135 m3 h 45 Pa 50 2 42 9 39 1 31 0 29 5 18 5 40 6 Setting 3 outlet 225 m3 h 100 Pa 54 1 53 2 49 1 40 8 41 8 32 2 50 2 Setting 3 max outlet 225 m3 h 150 Pa 59 1 59 3 55 2 47 3 48 1 39 2 56 4 The right to make changes is reserved CVE ECO 2 HP 110 0179 Capacity m3 h Pressure Pa Power W Current A Standard value Range Setting 1 Low 75 797159 9 a2 0 012 Setting 2 Medium 150 150 27 6 2 0 055 Setting 3 High 225 175 415 100 19 2 0 157 Setting 3 High 225 175 415 150 25 2 0 21 Setting 3 Maximum 415 175 415 150 66 4 0 496 CVE ECO 2HP Capacity qv l s Static pressure Pst Pal 450 400 350 300 250 200 150 100 50 275 300 325 350 375 400 425 450 475 500 525 Capacity E 1 minimum 2 low 3 middle 4 high 5 maximum pour S aa 6 minimum 7 low middle 9 hig
4. five years of normal use Guarantee The Itho CVE ECO 2 is covered by a written three year guarantee commencing on the date of installation The guarantee provides for the replacement of the motor fan assembly free of charge during the guarantee SAP Appendix Q The Standard Assessment Procedure SAP Appendix Q website www Sapappendixg org uk is a UK based Government led initiative for demonstrating compliance with Building Regulations within Part L England and Wales Section 6 Scotland and Part F Northern Ireland See also the Dwelling Energy Assessment Procedure DEAP for the Republic of Ireland SAP Appendix Q is a database of energy efficient technologies which have been assessed for performance The results can be input into a SAP assessment submission BRE independent test results for the CVE ECO 2 The Energy Saving Trust s Demonstrating Compliance Best Practice states that MEV units must have a specific fan power SFP of 0 6 W I s or less As this table shows the CVE ECO 2 and the CVE ECO 2 HP far exceeds this requirement Test raport SAP Append 0 MEV Test report Number 244 168 Test report issued 03 04 08 Standard Assessment Procedure 2005 Appendix O MVHR Product Data Product tested CVE ECO 2 Results for Appendix amp at minimum flow rate condition 1 additional WE room sr 2 additional wel roong Kiichen 3 additional wel n rooms Kitchen 5 additional
5. Hard Wired Version 5 core cable 3 position switch HRS 3 With an HRS 3 Speed Controller With a 3 way switch by others Wireless RFT three position switch with timer function Do not place the RFT control switch on a metal surface 8 2 S zi Adding wireless controllers The central unit can be controlled by several control switches from multiple rooms in the home Timer function The RFT control switch also features a timer which can be used to select the high speed setting for 10 20 or 30 minutes After this period the fan will revert back to low speed Press the timer button once to activate high speed for 10 minutes twice for 20 minutes and three times for 30 minutes The timer function can be over ridden at any time by pressing any of the three speed buttons RFT transmission information e transmission range 100m In free air transmission indoors is possible through a maximum of two concrete floors pointing of transmitter towards the fan Is not necessary no external antenna frequency 868 MHz no licence required The CVE ECO 2 and apartment blocks When connecting the CVE ECO 2 to a common riser duct to ventilate apartments in multi storey blocks air from the central exhaust duct must not flow back into the dwelling The CVE ECO 2 non return flap model CVH 125 will close the section between the extractor and the central chimney duct If for example the unit is tu
6. Poe t rt zua mme mk km m m m me t WAVY YY Code for Sustainable Homes all homes be 25 more energy By choosing Itho you re already the route to 2016 efficient than the previous there The CVE ECO 2 our The Code supports a target date regulations It is expected that continuous mechanical extract the year 2016 for all new build Levels 4 5 amp 6will be ventilation system MEV is homes in England and Wales to incorporated into the national more than ready for the airtight be zero carbon With a series of building regulations in England home of 2016 recommended percentage and Wales by 2016 reduction targets Initially for the public sector and the private sector following suit shortly after the suggested incremental targets are shown In the Code Levels for Mandatory Minimum Standards in CO2 Emissions table below Code Level Minimum percentage improvement in Dwelling Emission Rate Over Target Emission Rate The 2010 editions of Part L of the Level 1 x 10 Compliance with Part L 2010 only is required Building Regulations England Level 2 xx 0 Compliance with Part L 2010 only is required Level 3 xx x 0 Compliance with Part L 2010 only is required and Wales Conservation of fuel Level 4 xxx x 25 and power and Part F Means of Level 5 xXx xxx 100 ventilation which came into Level 6 kK dk de dda Net Zero CO2 Emissions effect in October 2010 requir
7. unit has an energy efficient direct current motor and an impeller with backward curved blades This minimises the build up of dust and contaminants enabling the CVE ECO 2 to deliver maximum performance for extended periods of time The motor fan assembly electrical components and the power cable are fitted to the CVE ECO 2 motor chassis Setting the CVE ECO 2 The CVE ECO 2 has two potentiometers which allow the low and high settings to be adjusted for maximum energy efficiency The unit automatically calculates the medium setting between the low and high settings values Adjusting settings The right to make changes is reserved Cable guides Two clips are fitted to the underside of the unit to guide the cable aye Electrical connection The unit is delivered with 1 metre of 5 core cable attached and must be connected to a 230V 50Hz mains power supply Control The CVE ECO 2 can be controlled by a three way wired switch or by one or more wireless RFT three position controllers with timer function It is possible to use external environmental controllers with these extract ventilation units These controllers are optional extras and not included with the unit Three position switch model A three position switch without an off position can be simply connected using three connecting wires directly to the wall socket see wiring diagram Wiring Diagrams for
8. wel rooms Tesi report SAP Appendix Q MEV Tesi report Number 244 173 Tesi report issued 03 04 08 Standard Assessment Procedure 2005 Appendix MVHR Product Data Product tested CVE ECO 2 HP Results for Appendix Q at minimum flow rate condition Tabla Q2 Systems with rigid ductwork only Exhaust Fan speed Total flow terminal setting rate configuration ls Kitchen 100 iti variable 3 additional variable wel rooms Kitchen 100 4 additional variable 45 0 wel rooms 100 Kichen 5 additional wel rooms 100 variable 100 variable 7 ITHO CVE ECO 2 Code for Sustainable Homes The Code for Sustainable Homes has been developed to improve sustainable building practice for new homes It has been prepared by the Government who worked with the Building Research Establishment BRE and Construction Industry Research and Information Association CIRIA and consulted a Senior Steering Group consisting of Government industry and NGO representatives Intended as a single national standard for designers and constructors of dwellings the Code for Sustainable Homes Is a means of driving continuous improvement Innovation and A New National Standard achievement in sustainable home building The Code complements the system of Energy Performance Certificates EPCs which was introduced in June 2007 under the Energy Performance of Buildings Directive EPBD On October
9. e that Source Code for Sustainable Homes Technical Guide November 2010 Page 12 9 ITHO CVE ECO 2 Building Regulations The October 2010 Edition of the UK Building Regulations Approved Document F41 Means of Ventilation applicable in England and Wales details four systems of ventilation to dwellings The requirements across the rest of the UK vary slightly in Northern Ireland the requirement to meet Code Level 3 In public sector housing became effective in April 2008 Scotland has issued a revised The Building Scotland Amendment Regulations 2010 document which comes into force from 1st October 2010 The new energy standards for domestic buildings should deliver carbon dioxide savings of 30 more than the 2007 target Plans for further changes In 2013 are targeting a saving of 75 more than the 2007 standards The ambition is for total life zero carbon buildings by 2030 The Republic of Ireland has adopted the EU Directive on the Energy Performance of Buildings This means that marketers of property for sale or rent have been obliged to prepare a Building Energy Rating BER certificate since January 2009 This applies to new and existing buildings System 3 Continuous mechanical extract requires a minimum high rate in each wet room to be achieved kitchens 13 l s utilities and bathrooms 8 l s and sanitary accommodation 6 l s In employing this type of system background ventilato
10. h maximum 70 60 50 40 30 20 Power W Noise levels Lw A total dB A Setting 1 radiated 75 m3 h 11 Pa 25 1 Setting 2 radiated 135 m3 h 45 Pa 40 2 Setting 3 radiated 225 m3 h 100 Pa 47 9 Setting 3 max radiated 225 m3 h 150 Pa 51 7 Setting 1 outlet 75 m3 h 11 Pa 20 6 Setting 2 outlet 135 m3 h 45 Pa 402 Setting 3 outlet 225 m3 h 100 Pa 50 4 Setting 3 max outlet 225 m3 h 150 Pa 54 3 The right to make changes is reserved 13 ITHO CVE ECO 2 30 CVE ECO 2 Range imensions D Left hand side view 0124 uitw 294 208 Rear view Paced eee SIREN 0124 uitw 0124 uitw 2ER oud uitw sll Front view 0124 uitw Right hand side view Bottom view 14 Notes 15 ITHO CVE ECO 2 Vision Our ultimate challenge is to create the climate neutral indoor environment that is also comfortable healthy and cost efficient At Itho we are dedicated to solving the apparent contradiction between comfort and energy consumption We believe that by combining highly efficient equipment with reduced energy demand and sustainable methods of generating energy this goal is achievable Itho UK Ltd 10 Faraday Court First Avenue Centrum 100 Burton on Trent DE14 2WX T 0845 250 8090 F 0845 250 8091 E infolditho co uk www itho co uk Climate Tone Wane The development Within a decade Itho has evolved fro
11. in all CVE ECO 2 variations available types of new dwellings light commercial premises and refurbishment projects Ducting Ducting within the dwelling should be either 204mm x 60mm modular plastic or 125mm diameter rigid plastic ducting All ducting joints need to be made air tight with tape and or non setting mastic This will ensure that the system achieves Connection to the interior Connection to the outside air its designed efficiencies Commissioning Once installed the system will need to be set up and commissioned to comply with the Domestic Ventilation Compliance Guide and the SAP Appendix Q Continuous Mechanical Extract Ventilation Installation Guide and Check List Capacity Pressure 110 0181 CVE ECO 2 5 core cable RFT 4 x 125 mm 1x 125 mm 325 m3 h 150 Pa 110 0179 CVE ECO 2 HP 5 core cable RFT 4 x 125 mm 1x 0125 mm 415 m3 h 150 Pa ITHO CVE ECO 2 Construction The CVE ECO 2 unit is manufactured in recyclable polypropylene and incorporates a pyramid shaped silencer to reduce noise and direct internal airflow for maximum performance The silencer is made from polyurethane polyester acoustic foam and Is flame retardant to MVSS 302 and UL94 HF1 standards The housing and the fan scroll form a single assembly Mounting eyes and cable clamps are built in The unit s front cover provides further sound proofing Motor and chassis The
12. m being a Dutch trading company into a self developing manufacturer supplying innovative products throughout Europe partly through our own outlets SED Ea HHIC ssrA fy OR gt itho Climate for life The future Itho continues to innovate and plans to introduce new technologies in a growing number of European countries And as we grow we look forward to increasing our network of partners and colleagues who share our vision motives and enthusiasm NSS Flus LLZOGIZOI99AD
13. ooms As an alternative where the designed air permeability is leakier than 3 5m3 h m at 50 Pa background ventilators are not necessary If further guidance Is required please contact the Itho Technical Department for further advice Table 5 1a Room Minimum Intermittent Extract Rate Continuous Rate Minimum high rate Minimum low rate Kitchen 30 l s adjacent to hob or 60 l s elsewhere 13 Vs Total extract rate Utility Room 30 Us 8 V s must be at least the whole building Bathroom 15 Us 8 Us ventilation rate Sanitary Accommodation 6 l s in table 5 1b Table 5 1 b Number of bedrooms in dwelling 1 2 3 4 Whole Building Ventilation Rate l s 13 17 21 25 29 Minimum value in any dwelling of 0 3 l s per m floor area 11 ITHO CVE ECO 2 Technical Specifications CVE ECO 2 110 0181 Capacity m3 h Pressure Pa Power W Current A Standard value Range Setting 1 Low 75 75 150 8 3 2 0 015 Setting 2 Medium 150 150 27 7 5 0 054 Setting 3 High 225 175 325 100 22 0 0 165 Setting 3 High 225 175 325 150 28 0 0 210 Setting 3 Maximum 325 175 325 150 44 0 330 Setting 2 is a calculated value that depends on the minimum and maximum capacities set CVE ECO 2 Capacity qv l s 20 30 40 50 60 Bo 110 130 140 79 Power W F 60 Static pressure Pst Pa 50 40 30 20 450 Se 1 minimum 2 low
14. rned off or unplugged from the wall For further information about non return flaps contact the Itho Technical Department ITHO CVE ECO 2 Removing the front cover To remove the front cover of the CVE ECO 2 insert a screwdriver into the clasp at the top left of the unit and press open The cover can now be pulled out by hand sn T Removing the front cover Removing the motor chassis with motor fan assembly To remove the motor chassis insert a flat blade screwdriver into each of its three slots then pull towards the chassis to release the clamps within The chassis including the motor and fan can now be released using a lifting strip at the top right of the chassis Removing the motor chassis Handbooks The tho CVE ECO 2 Users period The battery of the RF transmitter does not fall under Handbook supplied with your the guarantee See the unit contains guarantee conditions included in e information about ventilation every extractor unit in general current regulations and maintenance of your extractor unit e reports of Inspection measurements and values measured on delivery e your guarantee certificate Maintenance The unit must be accessible to allow maintenance and inspection at all times Due to its design and use of backward curved impellors the CVE ECO 2 accumulates Significantly less dust and grime than standard units and will only need cleaning once every four to
15. rs must be present in all habitable rooms whilst the air is extracted from all wet rooms Calculating ventilation rates 1 Determine the whole dwelling ventilation rate from Table 5 1b The minimum low rate Is calculated by taking the number of bedrooms in the dwelling and applying the l s value from Table 5 1b In addition the rate should be no less than 0 3 l s per m of internal floor area all storeys For each additional occupant over and above the anticipated two for the first bedroom and one for each additional bedroom a further 4 Vs must be added to the extract Note No allowance is made for infiltration as the extract system lowers the pressure in the dwelling and all airflow through infiltration paths does not increase the overall ventilation rate 2 Calculate the whole dwelling extract ventilation rate by adding the Individual room rates for minimum high rate from Table 5 1a 3 The required air flow rates are as follows The Maximum Extract Rate boost is the greater step of 1 and step 2 above Note that the maximum Individual room extract rates should be at least those given in Table 5 1a for minimum high rate The minimum whole dwelling extract ventilation rate should be at least the whole dwelling ventilation rate found in step 1 above Background Ventilation Controllable background ventilators with a minimum 2500mm equivalent area should be fitted In all habitable r
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