Installation Manual QB1 21 & QB1-21C

Installation Manual QB1 21 & QB1-21C

02 Showersave Installation Manual Contents Introduction 03 Description of heat exchanger 04 Standard Assessment Procedure (SAP) recognition 04 General Information 05 Performance and efficiency 06 Components 07 Components - QB1-21 08 Components - QB1-21C 09 Installation overview 10 Important notes to designers & installers 11 Decision flow chart 12 Positioning of Showersave 13 Typical system installation 14 System Installation 15 System Installation 16 Installation of Rotators 17 Maintenance & Safety 18 Warranty 19 KIWA Certificate (QB1-21) 20 KIWA Certificate (QB1-21C) 21 WRAS Certificate 22 Declaration of Conformity 23 Design Checklist 24-25 Installation Checklist & Certificate 26-28

03 Showersave Installation Manual 1.1 Introduction Showersave QB1-21 & QB1-21C (Showersave) On average, a shower uses 60 litres of water at a temperature of between 40 and 41 C. This shower water goes straight down the drain, wasting a great deal of heat and energy. By running the hot water through the QB1, this heat can be transferred to the water on its way to the boiler and/or the cold water tap of the shower's mixer tap. The heat transfer takes place simultaneously while you shower. Note: The Showersave QB1-21 and QB1-21C are similar systems. The ONLY difference is the type of waste water rotator used at the top of the heat exchanger. The heat exchangers are exactly the same. QB1-21 Rotator QB1-21C Cyclone Rotator WRAS Approved product No:1706069 1.2 Showersave The NCM (SAP) Identifier is Showersave QB1-21 OR Showersave QB1-21C.This is supplemented by the Model Qualifier denoting the system configuration (System A, B or C). Installation systems comprising either QB1-21 or QB1-21C are referred to as QB1 within this document, with Model Qualifier as appropriate. The QB1 is 2.1 m long and can only be installed vertically. The QB1 is therefore, generally, only suitable for heat reclamation from shower water from an upstairs shower. Cross section of the QB1 Waste water from shower To drain Preheated tap water Waste water flows down the inside of the heat exchanger in a thin film. Cold tap water

04 Showersave Installation Manual The QB1 is connected to the shower waste. If the shower is integrated into the bath, the QB1 can be connected to the bath waste. The QB1 needs to be placed as close as possible to the shower waste water exit point. When showering starts it takes a short time for the QB1 to respond and contribute to heating the cold water. This means the temperature of the shower water will continue to rise for some time. It is a requirement that thermostatic mixer valves are used. 1.3 Description of the heat exchanger The QB1 is made of copper. The QB1 has a double barrier between the waste water and the potable fresh water. The heat exchanger consists of 3 pipes. A thin-walled pipe, the so-called lining, has been installed around the inner pipe. The minuscule space between the lining and the inner pipe contains air. If the inner pipe develops a leak, this becomes visually apparent as waste water will drip from the heat exchanger. This double wall separation is in accordance with EN 1717, tested and certified by KIWA. The system is also WRAS approved. 1.4 Standard Assessment Procedure recognition Every QB1, when shipped is identified with a unique serial numbered label attached to it. A second NCM (SAP) Identifier label is also supplied. The installer must complete the Model name and Qualifier field, on the label, with the system configuration. This label must be visible for inspection by affixing it to a nearby service or boiler cupboard without the need for disassembly. If the label is not visible and / or the serial number does not correspond with the commissioning certificate that is completed, the system will not be guaranteed, nor will it be recognised in SAP. NCM (SAP) Identifier: (Delete as appropriate) Technology type Technology category Manufacturer Brand name Showersave QB1-21 Building Products Distributors Ltd Showersave QB1- Unit 21 Avondale Business Park, Ballyclare, Co. Antrim, BT39 9AU 21C Waste Water Heat Recovery System (WWHRS) Instantaneous Shower Heat Recovery BPD Ltd Showersave Serial no. 2.15101226 Model name QB1-21 / QB1-21C (delete as appropriate) Model Qualifier System A/ System B/ System C (delete as appropriate) Notes This dwelling is fitted with a Waste Water Heat Recovery System (WWHRS) which is recognized by the Governments Standard Assessment Procedure (SAP) for Energy Rating of Dwellings. Note: One label should be permanently affixed to the WWHRS unit and another to a nearby Boiler or Service cupboard. The QB1 can be positioned with bath/shower combinations. It should be noted that no benefit will be achieved when just the bath is in use. The system is designed for simultaneous consumption and drainage of water. IMPORTANT NOTE: For recognition of the Showersave QB1-21 or QB1-21C energy saving performance with the National Calculation Methodology (NCM) for

05 Showersave Installation Manual the energy rating of dwellings (known as SAP) it is important the following are complied with: 1. The instruction manual - to be left with home user pack. 2. Design checklist attached and signed by installer 3. Installation checklist attached and signed by installer Design and installation checklists are included on pages 24-28 of this document, but also available at www.ncm-pcdb.org.uk (under Technical Documents >>Design and Installation Checklists). These documents may be updated from time to time. 2) & 3) should have copies: a) Retained by installer b) Retained with instruction manual c) E mail to the manufacturer: sales@bpdlimited.com It is a condition of warranty that this is received 2.0 General Information 2.1 Description Value Unit of measurement Length (height) of Showersave QB1-21 & QB1-21C 2100 mm Height when installed including rotators: QB1-21 2310 mm QB1-21C 2382 mm Material internal Copper Material external Copper Rotator components QB1-21 & QB1-21C PVC Weight 7.7 Kg Outside diameter of external tube - top 50 mm Outside diameter of waste connection - bottom 50 mm Mains water connection - top & bottom 1/2ˮmale BSP Max tightening torque - mains water connection 150 Nm Mains shower flow rate range 5 15 litres/min Max. mains water inlet pressure 8 bar Min. mains water pressure 1 bar Max. working temperature 60 C Mains water volume in QB1 0.52 Litres Max waste water flow 40 Litre/min NB. All values are correct for both QB1-21 & QB1-21C unless specified NB: The mains inlet and pre-heated outlet are plumbed for 15mm and can be simply increased to 22mm using the following fittings: 15mm male iron push fit connector Wavin Hep2O Part number: HX29/15W NB. There are other manufacturers

06 Showersave Installation Manual 22mm 15mm reducer for mains connections Wavin Hep20 Part number: Reducer WT 15 x 22 2.2 Performance and Efficiency (KIWA certificates at Appendix A) Showersave QB1-21 Flow rate @40 C (litres/min) Efficiency System A pressure drop ( P) (bar) 9.2 64.6 0.37 12.5 61.4 0.63 11 62.6 0.51 Showersave QB1-21C Flow rate @40 C (litres/min) Efficiency System A pressure drop ( P) (bar) 9.2 65.6 0.37 12.5 62.1 0.63 11 63.8 0.51 Pressure drop for Systems B & C are 35% less than for System A. Tests are undertaken in accordance with Annex B of the EN7120:2011/C2:2011 2.3 Dimensions QB1-21 and QB1-21C QB1-21 Showersave QB1-21

07 Showersave Installation Manual QB1-21C 3.0 Components The QB1-21 & QB1-21C is delivered in two parts: 1. Cardboard tube containing the following: a. QB1-21 heat exchanger system b. NCM SAP identifier labels for both QB1-21 & QB1-21C 2. Cardboard box containing: a. Components of rotator specified - QB1-21 or QB1-21C b. Wall mounting brackets c. Bottom waste connector d. Installation manual including design & installation checklist

08 Showersave Installation Manual QB1-21 Rotator Connection set CSR1 Heat Exchanger Material Colours Nom Pack size Qty Copper - 50 1 Connection Set Top Connector Rotator Material Colours Nom Pack size Qty PP W 50 1 Bottom Connector Adapter Material Colours Nom size Pack Qty PP/PVC- U G 50 1 Bracket and Fixings Material Colours Nom size Pack Qty EPDM, steel - 50 2

09 Showersave Installation Manual QB1-21C Cyclone rotator Connection set CSC1 Heat Exchanger Material Colours Nom Pack size Qty Copper - 50 1 Bottom Connector Adapter Material Colours Nom size Pack Qty PP/PVC- U G 50 1 Bracket and Fixings Material Colours Nom size Pack Qty EPDM, steel - 50 2 Material Colours Nom Pack size Qty PE Orange 1 1 Material Colours Nom size Pack Qty PP/PVC-U W 40-50 1

010 Showersave Installation Manual 4.0 Installation 4.1 Overview of installation - Systems A, B & C The inlet side of the QB1 is connected to the mains water system. The outlet side can be installed in three different ways, that are recognised in SAP, namely: System: A. Combined connection to the shower mixer tap's cold water connection and the water heater. B. Separate connection of the cold water connection to the shower's mixer tap. C. Separate connection of the cold water connection to the water heater. The largest energy and CO2 saving is achieved by using System A. The performance of all 3 systems are recognised within the SAP Products Characteristics Database (PCDB) where the relevant efficiencies can be found www.ncm-pcdb.org.uk/sap

011 Showersave Installation Manual 4.2 Important notes to designers & installers The system should be installed by a suitably qualified plumber, with system design consideration being equally important to a correct installation. For recognition of the QB1 within SAP, a system design checklist and certificate of installation should be completed and signed, with copies kept for the home information pack (homeowner), the installer and sent to Building Products Distributors at the address below. Building Control Officers may also request a copy. The flow chart below will assist in both the design and installation process. The design and installation processes outlined within this document are designed to comply with Approved Code of Practice and Guidance (ACOP) L8, which are the guidelines for the prevention of Legionnaire's disease in UK Commercial buildings. ACOP L8 is designed to provide guidance for all installations in public and commercial premises. It should be noted that within a residential environment in the UK homes generally cannot comply with the ACOP L8 as interior temperatures can frequently exceed 20⁰C.

012 Showersave Installation Manual Decision flow chart Is the water pressure > 1 bar? NO Do not install Showersave system Is the system pressurised /unvented? NO Do not install Showersave system Is there space within (rather than externally ) the building to install the Showersave? NO Do not install Showersave system Which system is the most appropriate in terms of the installation? The Showersave will always be mounted close to theshower, and hence a connection to the cold inlet on the mixer tap is straightforward. T he water heater may be mounted some way away, which may make routing the Showersave output to the heater cold inlet more difficult. In this case a System B installation solves the problem. System B : Lowest efficiency System A: : Highest efficiency System C : Medium efficiency System A - the pre- heated output of the Showersaveis used to supply both the cold input to the mixer tap, and also the supply to the water heater. System B - only the mixer tap input. See 3.1 Systems A, B & C System C - only the water heater.

013 Showersave Installation Manual 4.3 Positioning of Showersave The QB1 should always be placed in an easily accessible location in order that inspection work can be undertaken. The warranty will become obsolete if this is not the case. The WWHRS must always be installed within heated envelope for SAP recognition. Possible locations: Alongside internal soil stack through which the waste water would have run Fixed cabinet under stairs if there is sufficient height Pre-defined and specified technical area Always place Showersave as close to the shower outlet as possible. Long run lengths will influence the systems effectiveness. 4.4 Points of note The Showersave can be installed in homes, apartments, hotels, hospitals, nursing homes, etc. Also industrial companies can easily utilise the heat from the waste water. The design checklist at Appendix B should be completed to ensure recognition. To be recognised in SAP the QB1 must be used in conjunction with a mains pressure hot water system, such as a combination boiler or an unvented hot (pressurised) water cylinder. It can also be used in conjunction with a solar thermal system. When installing the QB1 in conjunction with a combination boiler, ensure the appropriate system is installed that can accept pre-heated water. Refer to the boiler manufacturers' data sheet. Points of note Ensure the heat exchanger is easily accessible so that it can be easily installed and uninstalled. Ensure that a non-return valve and a shut-off valve have been installed and that these are easily accessible. Ensure that the heat exchanger is installed in a space in which the temperature does not normally exceed 25 C, DO NOT INSULATE the QB1 Make sure the tap water connections are preferably made using straight thread, that no hemp is used and that the tightening moment is limited to 120 Nm. Following installation the system should be cleaned in accordance with ACOP L8 or BS 6700 (Design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages). Be aware there may be some pressure loss on the tap side when a high flow rate shower head is in use.

014 Showersave Installation Manual 4.5 Typical system installation NB: rotator for QB1-21 or Cyclone rotator for QB1-21C Notes: 1) The rotator at the top of the Showersave may be located within the ceiling void, depending on the height of the room. 2) The size of the boxed off unit will be no more than 2,400mm in height by 340mm in width and 240mm in depth. 3) The boxing off needs to be in accordance with the NHBC standards AD part E. 4) The Showersave, is considered a device. The space it is installed in should be large enough so that inspection can be carried out. Access should be possible without too much work. 5) The cold to the base of the Showersave can come from above or from a location on the same floor. Consideration should be given to whether the system is being installed as System A (Normal), System B or System C.

015 Showersave Installation Manual 1. Install the Showersave vertically to a solid surface, using the 2 brackets and 10mm studs supplied. 2. Ensure the 2 push fit connectors on the waste pipe (1 x 90ᵒ and 1 x 45ᵒ) are positioned as per the photos below (QB1-21 only). These pictures show the correct installation of the 90 and 45 connectors on the waste. Correctly fitting these connectors will ensure the best energy recovery performance. QB1-21 only 3. Using the straight through 50x40 compression reducer supplied, connect the waste from the bottom of the Showersave to the SVP.

016 Showersave Installation Manual 4. The mains water supply are connected to the top and bottom of the heat exchanger using 1/2 BSP iron male fittings. 5. Only use PTFE tape to seal the thread, DO NOT USE HEMP 6. Do not over torque, max 120mm 7. Install an isolator on both top and bottom mains water supply 8. Install non-return valve before the shut-off valve 9. A drain tap to bottom supply could be helpful 10. Do not wrap the Showersave with insulation 11. Return the warm flow from top of Showersave in accordance with the designated system (A, B or C) and in line with best plumbing practices. 12. Attach the 2 nd SAP Identifier label supplied to the inside of the boiler cabinet so it is easily visible to the energy assessor NCM (SAP) Identifier: (delete as appropriate) Technology type Technology category Manufacturer Brand name Showersave QB1-21 Building Products Distributors Ltd Showersave QB1- Unit 21 Avondale Business Park, Ballyclare, Co. Antrim, BT39 9AU 21C Waste Water Heat Recovery System (WWHRS) Instantaneous Shower Heat Recovery BPD Ltd Showersave Serial no. 2.15101226 Model name QB1-21 / QB1-21C (delete as appropriate) Model Qualifier System A/ System B/ System C (delete as appropriate) Notes This dwelling is fitted with a Waste Water Heat Recovery System (WWHRS) which is recognized by the Governments Standard Assessment Procedure (SAP) for Energy Rating of Dwellings. Note: One label should be permanently affixed to the WWHRS unit and another to a nearby Boiler or Service cupboard.

017 Showersave Installation Manual 4.6 Installation of Rotators QB1-21 & QB1-21C The supply of waste water to the Showersave must take place a rotator which is supplied with the system, when requested, please refer to the instructional drawings for installation. The rotator makes the waste water rotate as it enters the Showersave, whirling it against the side walls of the inner pipe so it flows down the inner pipe's walls along the entire length. This is important for reasons of efficiency. REMEMBER: if not installed correctly, and in accordance with these instructions, SAP recognition becomes invalid. 1. Standard rotator QB1-21 The 45 bend is attached to the top of the Showersave and angled to allow the 90 bend to point in the appropriate direction. The 40 x 50 reducer is then used to connect to the shower waste water pipe (if 40mm). The external diameter of the inner pipe is 50mm, so a 40/50mm reducer may be required. Using the fittings supplied, the rotator allows connection to BS EN 1451-1:2000, BS EN 1455-1:2000 or BS EN 1566-1:2000 waste systems. 2. Installation of the Cyclone rotator for QB1-21C Vertical fixing Horizontal fixing Cyclone rotator Top of QB1-21C

018 Showersave Installation Manual 5.0 Maintenance & Safety 5.1 Maintenance & cleaning Generally no maintenance or cleaning is required. Efficiency can slightly decrease as a result of dirt accumulating on the inside of the Showersave. However, the waste water from the shower flows at a high speed of over 1 m/s along the inner pipe's wall. This is comparable to the water speeds in a dishwasher. The water flows through the pipe in 2 seconds and so no dirt can accumulate. To a large extent the Showersave is self -cleaning. If, for whatever reason, dirt accumulates, then a soap-based cleaning agent can be used to flush the pipe. Cleaning agents based on scouring or polishing agents are not recommended as these can stick to the wall of the pipe, reducing its efficiency. Connecting a wash basin to the Showersave is not recommended as shaving gel and toothpaste are very sticky and could adhere to the wall of the inner pipe. If the system is left to stand for more than three days it is good practice to flush the system to drain slowly to avoid aerosol. This can be achieved by slowly (to avoid splashing) turning on a hot water tap for three minutes. In a commercial environment, under L8, It is good practice to clean and disinfect Showerheads and hoses on a Quarterly basis. In accordance with L8, and only in commercial situations, should a risk assessment be undertaken following installation of a system/s. 5.2 Legionella risk and mitigation When no cold water is flowing up the Showersave, the temperature in the pipe should be prevented from becoming higher than 25 C. The Showersave may therefore not be installed near heat conducting pipes, on warm surfaces or in spaces with constantly high temperatures (>25 C). The cold water pipe, connection and the outer wall of the Showersave should therefore not be insulated. Installing the Showersave in the way shown in the diagram System A will mean that whenever the hot water system runs the cold water system will be flushed. This will result in stagnation being minimised and complies with recommendations within ACOP L8. This would be the most common method of installation. In instances where it is not possible to ensure a Tee at the cold side of the shower's thermostatic mixing valve, then a venturi effect assembly should be considered. This is a straightforward assembly of different pipe diameters to ensure stagnation on the cold side is minimised. Following installation, the system should be cleaned in accordance with L8 or BS6700 and pressure tested. This is no difference to installing any standard plumbing/pipe system.

019 Showersave Installation Manual If the system is installed in a non-private building, ACOP L8 recommends that all new/modified plumbing requires a risk assessment to be undertaken in order to comply. 5.2 Warranty The Showersave QB1-21 & QB1-21C come with a 5 year warranty. The warranty is conditional on the system being installed in accordance with this manual and advice given, from time to time, by BPD Ltd. It must also meet all the requirements of this manual if the system is to be recognised within SAP Assessments and therefore Part L of the Building Regulations (Part F Northern Ireland). In order to ensure warranty is valid, completed checklists and installation details must be registered with the manufacturer: sales@bpdlimited.com Should you have any comments or additions to this manual, please do inform us.

020 Showersave Installation Manual KIWA Certificate QB1-21

021 Showersave Installation Manual KIWA Certificate QB1-21C }

022 Showersave Installation Manual

023 Showersave Installation Manual

024 Showersave Installation Manual Standard Assessment Procedure Waste Water Heat Recovery Systems Design Checklist for Showersave QB1-21C and QB1-21C Design Checklist Version 1 03.01.17 Customer Details: Customer Name: Address: Telephone Number: Date of Installation: Name of Lead Contractor: Installer Name/Company: Project Reference Number: NCM (SAP) Identifier: Technology type: Waste Water Heat Recovery (WWHRS) Technology category: Instantaneous Shower Heat Recovery Brand name: Showersave Model name: QB1-21 / QB1-21C (delete as appropriate) Model qualifier (delete as appropriate) : System A / System B / System C Completion of this document is a requirement for inclusion of product data within the Standard Assessment Procedure Note: All checklist items must be ticked in order for this WWHRS product to be used in SAP calculations. Systems must be designed and configured correctly to achieve the energy savings associated with this product. Standard Assessment Procedure Waste Water Heat Recovery Systems Design Checklist for Showersave QB1-21 and QB1-21C Refer to the unit's installation manual for the optimum plumbing and drainage configurations and prepare drawings and a schedule of materials for the installation. The Designer's specification for product installation should ensure compliance with Approved Document Part H (2002) of the Building Regulations and the manufacturer's installation guidance. 1. DWELLING EVALUATION Decision Has the system designer adhered to the Design Flow Chart? Is the dwelling mains water pressure measured to be at least 1.5 Bar? Is the dwelling hot water system (DHW) a mains pressure system, such as Combination Boiler or Unvented cylinder? Does the water heater accept a preheated water inlet? [Not applicable if installed in System B configuration - tick box] - Tick as appropriate 2. DRAINAGE CONNECTIONS Decision Refer to the installation manual for the range of drainage configurations and ensure all drawings and specifications comply with the following aspects. Was an installation location selected in order to minimise the length of drain pipe between shower and WWHRS? With reference to Approved Document Part H of the Building Regulations and the installation manual, has an appropriate method for preventing the ingress of foul sewer gases as a result of the WWHRS installation been devised? Is the WWHRS only supplied with waste water from the shower, including baths with showers? i.e. no sinks are connected - Tick as appropriate 3. PLUMBING CONNECTIONS Decision Refer to the installation manual for the range of plumbing configurations; a decision on the appropriate configuration will be based on the relative installation locations of the shower(s), water heater, soil stack and the WWHRS unit. Ensure all drawings and specifications comply with the following aspects. Does the drawing clearly indicate which system configuration (System A, B or C) has been selected and where the relevant connections terminate? Is the plumbing design configured in order to prevent connection of hot water take-off points, such as taps, from the WWHRS outlet? Do installation drawings indicate the requirement to label the supply pipe between the WWHRS outlet and the water heater and/or the shower cold water inlet to prevent any future connections? Is a 'full flow' shut-off valve specified on both WWHRS unit inlet and outlet? Is a check-valve specified for WWHRS inlet? - Tick as appropriate 1/2

025 Showersave Installation Manual Do drawings state that: - 'Hemp' thread locking materials are not permissible - That the maximum tightening torque for fasteners is 120 Nm 4. INSTALLATION LOCATION Decision The following aspects are important for Health & Safety reasons, correct product performance and for any potential maintenance and/or replacement of the WWHRS. Ensure all drawings and specifications comply with the following aspects. Does the drawing specify an installation location for the WWHRS that does not normally exceed 25 C? Does the drawing specify the requirement to install the WWHRS within a tolerance of ±1 of vertical? Does the installation location provide access for future maintenance and/or repair? - Tick as appropriate Standard Assessment Procedure Waste Water Heat Recovery Systems Design Checklist for Showersave QB1-21 and QB1-21C 5. DESIGNER DECLARATION I / We declare that the design for this WWHRS has been prepared in accordance with the manufacturer's recommendations and that the required verification procedures have been followed. System design authority: Designer's name (please print): Designer's signature: Date: 2/2

026 Showersave Installation Manual Standard Assessment Procedure Waste Water Heat Recovery Systems Installation Checklist & Certificate for Showersave QB1-21 and QB1-21C Installation Checklist and Certificate Version 1 03.01.17 Customer Details: Customer Name: Address: Telephone Number: Date of Installation: Name of Lead Contractor: Installer Name/Company: Project Reference Number: NCM (SAP) Identifier: Technology type: Waste Water Heat Recovery (WWHRS) Technology category: Instantaneous Shower Heat Recovery Brand name: Showersave Model name: QB1-21 / QB1-21C (delete as appropriate) Model qualifier (delete as appropriate) : System A / System B / System C Completion of this document is a requirement for inclusion of product data within the Standard Assessment Procedure Note: All checklist items must be ticked in order for this WWHRS product to be used in SAP calculations. Systems must be installed correctly to achieve the energy savings associated with this product. Standard Assessment Procedure Waste Water Heat Recovery Systems Installation Checklist & Certificate for Showersave QB1-21 and QB1-21C Refer to the unit's installation manual and to installation drawings and specification for the plumbing and drainage installation configurations and locations. The installation must comply with Approved Document Part H (2002) of the Building Regulations and the manufacturer's installation guidance. SECTION 1: INSTALLATION 1. DWELLING EVALUATION Decision - Tick as appropriate Is the dwelling hot water system (DHW) a mains pressure system, such as Combination Boiler or Unvented cylinder? 2. DRAINAGE CONNECTIONS Decision With reference to the installation manual and to installation drawings and specification - Ensure compliance with the following aspects: The installation location has minimised the length of drain pipe between shower and WWHRS? In accordance with Approved Document Part H (2002) of the Building Regulations and the installation manual, the installation has implemented an appropriate method for preventing the ingress of foul sewer gases as a result of the WWHRS installation? Is the WWHRS only supplied with waste water from the shower, including baths with showers? i.e. no sinks are connected The rotator is correctly installed in accordance with the installation manual? - Tick as appropriate 3. PLUMBING CONNECTIONS Decision Refer to the installation manual and to installation drawings and specification for the specified installation configuration (System A, B or C). Ensure the following aspects are complied with: The inlet and outlet from the WWHRS are correctly fitted, with the lowest connection for incoming mains water and highest connection for preheated outgoing water? - Tick as appropriate 1/3

027 Showersave Installation Manual The outlet from the WWHRS is only connected to showers and/or water heater (depending on installation configuration), but not any other hot water supply points? The outlet from the WWHRS to showers and/or water heater (depending on installation configuration) is labelled to indicate that no other services can be interconnected? Is a 'full flow' shut-off valve fitted on WWHRS unit inlet? Is a check-valve fitted for WWHRS inlet? The following items have been complied with during the installation: - 'Hemp' thread locking materials are not permissible - The maximum tightening torque for fasteners is 120 Nm 4. INSTALLATION LOCATION Decision The following aspects are important for Health & Safety reasons, correct product performance and for any potential maintenance and/or replacement of the WWHRS. Ensure the following aspects are complied with: The installation location for the WWHRS will not normally exceed 25 C? The WWHRS has been installed within a tolerance of ±1 of vertical? The installation location provides access for future maintenance and/or repair? The NCM (SAP) Identifier label permanently fixed to the WWHRS has been oriented in order to enable visibility, even if a cover panel, etc. must be removed? The Second NCM (SAP) Identifier label has been marked appropriately with the Installation Configuration (System A, B or C within the 'Model Qualifier' field) that has been used? The label was then affixed to a nearby service/boiler cupboard or similar and is visible without the requirement for dismantling of any other systems using tools? - Tick as appropriate Standard Assessment Procedure Waste Water Heat Recovery Systems Installation Checklist & Certificate for Showersave QB1-21 and QB1-21C SECTION 2: USER INFORMATION 1. Handover and Maintenance Advice Decision - Tick as appropriate Has a copy of suitable documentation detailing maintenance and operational requirements been supplied for the home user pack? Has a copy of this document been supplied for the Home User Pack? Standard Assessment Procedure Waste Water Heat Recovery Systems Installation Checklist & Certificate for Showersave QB1-21 and QB1-21C SECTION 3: INSTALLATION CERTIFICATE 1. Installation Configuration (delete as appropriate) - System A - WWHRS outlet connects to water heater inlet AND shower cold inlet - System B - WWHRS outlet connects to shower cold inlet ONLY - System C - WWHRS outlet connects to water heater inlet ONLY 2. Total number of ALL shower types? Number of: 3. Details for bathrooms with showers but NOT baths, e.g. dedicated shower room Total number of showers with Shower-Save QB1-21/ QB1-21C (delete as appropriate ) connected to bathroom drain 4. Details for bathrooms with showers and baths, e.g. showers within baths and/or baths and separate shower Total number of showers with Shower-Save QB1-21/ QB1-21C (delete as appropriate) connected to bathroom drain 2/3

028 Showersave Installation Manual Standard Assessment Procedure Waste Water Heat Recovery Systems Installation Checklist & Certificate for Showersave QB1-21 and QB1-21C SECTION 4: INSTALLER DECLARATION I / We declare that this WWHRS has been installed in accordance with the manufacturer's recommendations and that the required verification procedures have been followed. Installation Company: Installer's name (please print): Installer's signature: Date: In addition to providing copies of the design checklist and the installation Checklist and certificate to: - The dwelling's SAP Assessor - Building Control Officer (where requested) - Home User Pack For reference and warranty purposes, please also send copies to the manufacturer: sales@bpdlimited.com sales@bpdlimited.com 3/3