Flue & Flue Kits for NVx, VPC & NVS

Transcription

1 Doc Ref: M505 Issue 2.1 Mar 2018 Flue & Flue Kits for NVx, VPC & NVS Industrial & Commercial Heating Systems Installation Manual (0)

2 powrmatic Certificate of Guarantee Dear Customer This is to certify that this flue is guaranteed for a period of one year (parts only) from the date of original installation. To make a claim In the first instance you must contact your appliance supplier, or installer and provide:- 1. The item type and part number. 2. The original installation documentation. 3. A s much detail as possible on the fault. Your supplier, or installer, will then contact Powrmatic to make a guarantee claim on your behalf. Conditions of Guarantee 1. The flue must have been installed by a competent installer, and i n accordance with the manufacturers instructions, building r egulations and local regulations. 2. The flue has been used in accordance with the manufacturers i nstructions. 3. N o unauthorised repairs of modifications have been made. 4. P owrmatic General Conditions of Sales have been observed. 5. E xcept for the obligation of Powrmatic Ltd to supply r eplacement parts during the guarnatee period, Powrmatic will not be liable in respect of any claims for direct or indirect consequential losses, including loss of profits or increased cost a rising from loss of use of the destratification fan, or any event a rising there from Powrmatic Ltd, Hort Bridge, Ilminster, Somerset, TA19 9PS Tel: Fax: Web: warranty@powrmatic.co.uk be kept with the appliance Failure to provide a copy of the installtion sheet invalidates the destratification fan warrantee Installer Date: Signed Installer page no. 2 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

3 Dear Customer - thank you for choosing Powrmatic. We appreciate you buying one of our high quality products and know that you have made the best choice. By choosing Powrmatic, you are investing in UK manufacturing & its workforce. We pride ourselves by manufacturing products that provide clean, comfortable and safe working environments worldwide together with the personal & professional service and back-up you deserve. If you have any questions or concerns regarding this product, please contact our Technical Support Team by calling Installation Instructions CONTENTS Title Section Contents Page Pre Installation 1.1 Introduction & Safety Receipt & Unpacking Storage Planning Your Flue Run Supplied Components 6 Installation 2.1 General Arrangement Assembling the Kit Jointing Using the Regular Flue s Adjustable Lengths Using the Adjustable s Vertical Balanced Flue Assembly type C Horizontal Balanced Flue Assembly type C Vertical Single Flue Assembly type B Horizontal Single Flue Assembly type B Dimensions Flue Parts Lists Condense Drain Guidance 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 3 of 20

4 1.1 Introduction and Safety A) Choosing which flue to use. There are two types of flue available:- a) Single flue (exhaust gas only), Combustion air is drawn from inside the premises, and exhaust gases are expelled from the premises through the single flue. b) Balanced flue (both exhaust gas and combustion air). Combustion air is drawn from outside the premises, and the exhaust gas is expelled out of the property. The system is then available in two options Vertical or Horizontal. B) Safety issues to take into consideration WARNING: Our flue system is made of stainless steel. Care should be taken when handling to avoid cuts (it is recommended that gloves should be worn.) WARNING: Once the appliance is running, the flue can get very hot and care should be taken to avoid burns, also ensure that no flammable material comes into contact with the flue. WARNING: The flue system is designed to expel exhaust gases out of the property, Care should be taken to ensure that the flue system does not leak, so the exhaust gases do not enter the property. Particular care should be taken to ensure that each section of flue is joined correctly. WARNING: Gas Safety (Installation & Use) Regulations 1998 It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the current issue of the above regulations. Failure to install appliances correctly can lead to prosecution. It is in your own interests and that of safety to ensure that the law is complied with. * An approved class of person listed on the gas safe register. C) Related Documents The installations this manual covers is Type C12 or C32 Installation (Balanced flue) and Type B22 installation (Single flue). WARNING: The installation of the air heater(s) must be in accordance with the rules in force and the relevant requirements of the Gas Safety Regulations, Building Regulations. It should also be in accordance with any relevant requirements of the local gas region, local authority and fire authority and the relevant recommendations of the following documents. IGE/UP/10 (with Amendments October 2010) Installation gas appliances in industrial and commercial premises. British Standards Code of Practice BS 9999:2008 Code of practice for fire safety in the design, management and use of buildings. BS 6230 Installation of Gas Fired Forced Convection Air Heaters for Commercial and Industrial Space Heating. Those appliances having a gross input rating not exceeding 60kW viz. NVx10 to NVx50 inclusive and installed to take their combustion air from within the building must be installed in accordance with the relevant recommendations of the following document:- BS 5440 Flues and Air Supply for gas appliances of rated input not exceeding 60kW (1st and 2nd family gases), Part 2 Air Supply For NV/D units of size, reference should also be made to:- BS 5864 Code of Practice for installation of gas-fired ducted-air heaters of rated input not exceeding 60kW. D) Health and Safety Note: Care should be taken when installing this flue system. Including:- Working at height. Working with hot material. Working with sharp material. It is important to wear the correct PPE depending on the task performed. page no. 4 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

5 1.2 Receipt and Unpacking All units are checked and should be delivered complete and in perfect condition. However please carry out the following to check the condition of the received product:- Note: Upon receipt, check if the box is undamaged. If this is not the case, accept the goods with reservations and keep photographic evidence of any damage found. Note: Unpack and check the contents against the packing list. Check that none of the parts have been damaged during shipment. In case of damage, report it to the delivery company within 3 days of receipt by registered letter with return receipt and attaching photographic documentation. A copy should also be sent by fax/ to our warranty department. No notice of damage will be accepted after 3 days from delivery. All of the packaging can be recycled. Please make use of local recycling facilities. 1.3 Storage Until the flue system has been installed, it is liable to damage and care should be taken when transporting and storing the parts. Although the flue parts are made of stainless steel, care should be taken to avoid exposure to abrasives and corrosive items, and they should be stored in a dry secure location. 1.4 Planning Your Flue Run Before installation commences, the position of the heater and subsequent flue run will need to be planned. We do not reccommend cutting the terminal or flue pipe. All adjustment must be made by the use of the adjustable length and additional lengths of flue, (250mm, 500mm, and 1000mm are available.) IMPORTANT: The maximum length for a balanced flue system is 6 metres for type C12 and C32 and 12 metres for type B22 installations (less bends). IMPORTANT: The maximum length of flue is subsequently shortened if bends are added to the planned flue run 90 bends are equivalent to a 1m length 45 bends are equivalent to a 0.5 m length Type C32 installation - Vertical Balanced Flue system Terminal Type C12 installation - Horizontal Balanced Flue system Flashing Flue socket Lengths Single to twin adaptor Terminal Single to twin adaptor Lengths Adjustable lengths Maximum 6m Minimum 80Ø mm 100Ø mm 130Ø mm Adjustable length Combustion air socket Combustion air duct Maximum 6m, Minimum 980mm Combustion air socket Condensate drain length Flue s ocket Note: A terminal guard may be required. Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 5 of 20

6 Type B22 installation - Exhaust Only system Terminal OPTION 1 Combustion air entry (fitted with inlet grille) Flue outlet Adjustable length Lengths Terminal Length s Flashing Maximum 12m Minimum 80Ø mm 100Ø mm 130Ø mm OPTION 2 Combustion air entry (fitted with inlet grille and inlet bend (not shown)) OPTION 1 Combustion air entry (fitted with inlet grille) Adjustable length Condensate drain length 12m maximum, Minimum 980mm Flue socket Note: A terminal guard may be required. OPTION 2 -Combustion air entry (fitted with inlet grille and inlet bend (not shown)) 1.5 Supplied Components Balanced Flue type C12 or C32 The flue kit you have received will either be vertical or horizontal. Firstly check that kit supplied is the kit required (vertical or horizontal), then check the parts supplied comprises of the parts listed in the following table. Before assembly, please check that they are all included and are not damaged. Type C32 installation - Vertical Balanced Flue system A Vertical terminal* B Single to twin adaptor (ski boot)* C Adjustable flue lengths x 2 D In-line condense drain E 250mm standard flue length F Terminal extension length* G Flue support bracket H Fixings and glue* I Adjustable length locking band x 3 J Flue locking band x 2 K Silicon flashing * Supplied with terminal kit page no. 6 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

7 Type C12 installation - Horizontal Balanced Flue system A Horizontal terminal* B Single to twin adaptor (ski boot)* C Adjustable flue lengths x 2 D Wall securing plate* E Fixings* F Terminal extension length* G Flue locking bands x 2 H 250mm standard flue lengths x 2 I Adjustable length locking bands x 3 * Supplied with terminal kit Single Flue type C12 or C32 The flue system will take form of individual components. Check the parts supplied are listed in the following table. Before assembly, please check that they are all included and are not damaged. Type B22 installation - Exhaust Only system components A Vertical terminal B Horizontal terminal C Adjustable flue lengths D In-line condense drain E 250mm standard flue length (Available in 250,500 & 1000mm lens) F 90 Bend G 45 Bend H Flue support bracket I Adjustable length locking band J Flue locking band K Silicon flashing Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 7 of 20

8 2.1 General Arrangement The minimum distance between surfaces of the flue pipe and any surfaces made from combustible materials is 150mm. If it is necessary for the flue pipe to pass through a structure made from combustible materials a metal sleeve must be used so that the minimum clearance of 25mm is maintained. The flue and combustion air ducts supplied with the heater are capable of withstanding their own weight over the allowable flue lengths. Wall bands and bracing brackets, or equivalent, must be used to provide lateral stability and should be used at centres not exceeding 2.5 metres General Requirements In all cases the flue outlet socket must be connected via the provided flue system to outside air. The maximum permitted length of flue is 6m for balanced flue systems and 12m for single flue systems. If an offset is required two sets of 45 bends should be used each set being equivalent to 0.5m of flue length. 90 bends may be used but each set will be equivalent to 1.0m of flue length. For the minimum flue length (end of flue terminal to back or top of heater), refer to section Planning your flue run. All outer joints must be finished with the provided locking bands. A smear of parafin to the inside of sockets will assist in fitting components together. All flue and combustion air ducts must be supported independently of the air heater. The flue or flue/combustion air terminal must not be installed so as to be less than: - 300mm below an opening e.g. window, air brick etc mm below eaves or gutter mm from an internal or external corner mm from a surface facing the terminal mm vertically from another terminal on the same wall mm horizontally from another terminal on the same wall or roof mm from ground level*. NOTE: NVx heaters are supplied with rear flue outlet and VPC are supplied with top flue outletas standard. To convert a flue outlet, simply exchange the spigots with the blanking plates. Having firstly removed the fixing screws, rotate the exhaust fan assembly to the correct outlet position Horizontal System - Rear Outlet NOTE: If the outlet is required to the side of the unit 90 bends may be fitted directly onto the inlet/outlet spigots on the heater. 1. Locate the position of the flue terminal, allowing for a slight gradient running down from the heater to the terminal of 2-3 and cut a hole to suit. 2. Fit the flue terminal, securing via the wall plate and weather with silicon sealant or similar. 3. Fit the twin to concentric adaptor to the terminal section and extend the flue and combustion air ducts to the heater using straight lengths. Fit an adjustable length prior to the unit, to facilitate flue disconnection for servicing. Extend the adjustable lengths to make the final connection to the appropriate heater inlet/outlet spigots. 4. Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home. Secure concentric lengths with the locking bands provided. NOTE: for all systems. i) Final overall length of adjustable disconnection piece must be between mm. ii) 45 offsets may be used if required. Each set is equivalent to 0.5m of flue length. NOTE*: A terminal guard must be fitted to a horizontal flue terminal situated below 1.8m from floor level. NOTE: for existing NVx type B22 installations only. It is recommended that both air inlets are utilized and that both are fitted with the mesh inlet plates supplied. In addition a 90 bend should be fitted to the rear inlet, the inlet opening of the bend facing to the side of the heater i.e. away from the main air fan Vertical System - Top Outlet 1. Locate the position of the flue terminal and cut a hole in the roof to suit. 2. Fit the flashing and the flue terminal so that the lower edge of the outer case is over the top of the flashing. Weather protect with silicon sealant or similar. Fit a condensate drain length into the flue socket on the heater and an equivalent straight length onto the combustion air socket. 3. Fit the twin to concentric adaptor to the terminal section and then extend down to the heater using straight lengths. 4. Fit adjustable lengths as the final connection pieces, to facilitate flue disconnection for servicing. Extend the adjustable lengths to make the final connection but do not exceed the maximum extended length so as to maintain joint integrity. page no. 8 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

9 5. Use a pipe to extend the drainage spigot on condensate length to a suitable foul water drain or lime pot. 6. Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home. Secure concentric lengths with the locking bands provided Analyser Point We recommend that an analyser point is drilled into the flue at 500mm along from the heater or as close to this dimension as possible. IMPORTANT: (DO NOT DRILL THE CONCENTRIC SECTION OF FLUE, OR SKI BOOT). This hole is to be filled after testing with a self tapping screw or similar. 2.2 Assembling the Kit Having installed the heater and drilled a hole in the wall / roof, you can now assemble the flue kit Jointing The flue system is jointed by pushing the male end into the female end of the proceeding component, and then applying a. Each flue item comes complete with a factory bonded elastomer seal which provides a secure grip to the male end of the next flue component. A seal lubricant gel can be used to facilitate ease of installation and prevent potential damage of the seal during installation. one way. An indication arrow marked on the face of the clamp must be pointing towards the inserted male end. Therefore when assembling the band onto the flue, the toggle must snap to the right (see diagram below). Cross sectional area detailing sealing arrangement. Locking Band Male end Using the Regular Flue s NOTE: The locking band has a defined profile which will only allow for the toggle to be closed Seal Ring Female socket Locking band Male end Male end Female end Female end arrow MUST be pointing towards the inserted male end of the the flue Toggle must snap to the right Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 9 of 20

10 2.2.3 Adjustable Lengths The Adjustable Length consists of a slip section of flue, the lower non-beaded end of which is designed preferably to be located into a standard length. It can also be inserted into the female end of other components, but however applied, must engage to a depth equivalent to at least half of the diameter of the flue being used. Adjustment from 75mm to 230mm. end, and then pull the seal up so that the angled notch on its inside locates over the turned end of the female socket as shown below. A seal lubricant gel can be used to facilitate ease of installation and prevent potential damage of the seal during installation. Cross sectional area detailing sealing arrangement. Where pressure and moisture resistance are required a special & Seal is required to make the joint Using the Adjustable s NOTE: The locking band has a defined profile which will only allow for the toggle to be closed one way. An indication arrow marked on the face of the clamp must be pointing towards the inserted male end. Therefore when assembling the band onto the flue, the toggle must snap to the right (see diagram below). Adjustable Locking Band Seal Ring Slip Section Inner Tube Outer Tube Locking Band Seal Locate the seal over the socketed female end of the outer tube or component female end before inserting the male CORRECT METHOD Inner Slip Slip Section Inner Tube INCORRECT METHOD Outer tube arrow MUST be pointing towards the inserted male end of the the flue Outer Tube page no. 10 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

11 The following installation procedures are based on Powrmatic flue kits. Other additional Powrmatic flue components may be used upto the max length shown. Check that the spigots on the heater contain their seals Vertical Balanced Flue Assembly type C12 NOTE: Refer to breakdown sketch shown on the next page to aid with the following procedures. IMPORTANT: The maximum length for a balanced flue system is 6 metres. The maximum length of flue is subsequently shortened if bends are added to the planned flue run. 90 bends are equivalent to a 1m length and 45 bends are equivalent to a 0.5 m length Using the glue and screws provided, attach the silicon flashing into place over the hole in the roof, then cut the flashing to match the size of flue. Place the flue locking bands around the spigots, but do not tighten at this stage. Slide a condense length fully into the exhaust air spigot and 250mm standard length fully into the combustion air spigot of the heater (a smear of parafin will ease fitting). Clamp the flue locking bands. (These locking bands may be very tight!, see section for correct installation). Place an adjustable length locking band onto each end of the condense and 250mm standard length ensuring the rubber gasket is the correct way round (see section 2.2.4). Do not tighten at this stage. Slide an adjustable length section into each of the ends of the condense and 250mm standard length. Allow a suitable distance for each adjustable length to slide backwards - to release the flue in the event that the flue needs to be separated in future. Insert the vertical terminal through the roof to give the correct height above the roof to relevant regulations or rules in force. Secure using the terminal securing bracket. Extra lengths of standard flue can now be added between the adjustable length and the terminal adaptor (ski boot) if required. Clamp all extra lengths with locking bands. Prior to connection to the terminal adaptor, place an adjustable length locking band onto the end of the exhaust flue pipe only. Ensure that the exhaust air connects to the internal tube of the terminal adaptor (heal of the ski boot) and the fresh air inlet connects to the outer flue of the terminal adaptor (toe of the ski boot). Clamp the adjustable length locking band onto the exhaust flue connection of the terminal adaptor (ski boot). Attach the terminal extension length (not required on Ø130mm) and the terminal adaptor (ski boot). Once all flue components are correctly in place, lock the adjustable length locking bands back at the adjustable length sections. Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 11 of 20

12 2.2.6 Horizontal Balanced Flue Assembly type C32 Vertical Roof Terminal Silicone Flashing Insert the horizontal terminal through the wall, and secure using the wall securing plate. NOTE: see insert below. Terminal Extension Length Adapter (Ski Boot) Adjustable Length Additional Flue Lengths (as required) Attach the terminal extension length (not required on Ø130mm) and the terminal adaptor (ski boot). Top Bottom Check that the spigots on the heater contain their seals. s Adjustable Lengths Adjustable Length s 250mm Length Condensate Length s Heater Spigots Heater NOTE: Refer to breakdown sketch shown on the next page to aid with the following procedures. Place the flue locking bands around the spigots, but do not tighten at this stage. Slide a 250mm length fully into the exhaust air spigot and another into the combustion air spigot of the heater (a smear of parafin will help ease fitting). page no. 12 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

13 Clamp the flue locking bands. (These locking bands may be very tight!, see section for correct installation). Place an adjustable length locking band onto each end of 250mm lengths ensuring the rubber gasket is the correct way round (see section 2.2.4). Do not tighten at this stage. Slide an adjustable length section into each end of the 250mm lengths. Allow a suitable distance for each adjustable length to slide backwards - to release the flue in the event that the flue needs to be separated in future. Extra lengths of standard flue can now be added between the adjustable length and the terminal adaptor (ski boot) if required (not shown below). Clamp with locking bands. Prior to connection to the terminal adaptor, place an adjustable length locking band onto the end of the exhaust flue pipe only. Ensure that the exhaust air connects to the internal tube of the terminal adaptor (heal of the ski boot) and the fresh air inlet connects to the outer flue of the terminal adaptor (toe of the ski boot). Clamp the adjustable length locking band onto the exhaust flue connection of the terminal adaptor (ski boot). Once all flue components are correctly in place, lock the adjustable length locking bands back at the adjustable length sections. Terminal Extension Length Adjustable Length s Heater Horizontal Wall Terminal Adjustable Length Adapter (Ski Boot) Adjustable Lengths 250mm Flue Lengths Heater Spigots Vertical Single Flue Assembly type B22 Using the glue and screws provided, attach the silicon flashing into place over the hole in the roof, then cut the flashing to match the size of flue. Insert the vertical terminal through the roof to give the correct height above the roof to relevant regulations or rules in force. Secure using the terminal securing bracket IMPORTANT: The maximum length for a single flue system is 12 metres. The maximum length of flue is subsequently shortened if bends are added to the planned flue run. 90 bends are equivalent to a 1m length and 45 bends are equivalent to a 0.5 m length Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 13 of 20

14 Place a vertical terminal into the open end and clamp into place using a locking band. (This locking band may be very tight!, see section for correct installation). Check that the exhaust air spigot on the heater contains a seal. Vertical Roof Terminal Silicone Flashing NOTE: Refer to breakdown sketch shown opposite to aid with the following procedures. Place the flue locking band around the exhaust air spigot ONLY. Do not tighten at this stage. Slide a condense length fully into the exhaust air spigot (a smear of parafin will help ease fitting). Additional Flue Lengths (as required) Clamp the flue locking band. (This locking band may be very tight!, see section for correct installation). Slide an adjustable length locking band onto the end of the 250mm standard length ensuring the rubber gasket is the correct way round (see section 2.2.4). Do not tighten at this stage. Slide an adjustable length section into the end of the 250mm standard length. Allow a suitable distance for the adjustable length to slide backwards - to release the flue in the event that the flue needs to be separated in future. Extra lengths of standard flue can now be added between the adjustable length and final flue conenction. Prior to connection to the final piece of flue, place a locking band onto the end of the flue pipe. Clamp the flue locking band. (This locking band may be very tight!, see section for correct installation). Once all flue components are correctly in place, lock the adjustable length locking band back at the adjustable length section. Adjustable Length Adjustable Length Condensate Length Heater Spigot Heater page no. 14 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

15 2.2.8 Horizontal Single Flue Assembly type B22 Place the flue locking band around the exhaust air spigot ONLY. Do not tighten at this stage. Slide a 250mm length fully into the exhaust air spigot (a smear of parafin will help ease fitting). Clamp the flue locking band. (This locking band may be very tight!, see section for correct installation). Slide an adjustable length locking band onto the end of the 250mm length ensuring the rubber gasket is the correct way round (see section 2.2.4). Do not tighten at this stage. Insert the horizontal terminal through the wall, and secure using the wall securing plate. Check that the exhaust air spigot on the heater contains a seal. Slide an adjustable length section into the end of the 250mm length. Allow a suitable distance for the adjustable length to slide backwards - to release the flue in the event that the flue needs to be separated in future. Extra lengths of standard flue can now be added between the adjustable length and final flue conenction. (not shown on sketch below). Clamp with locking bands. Prior to connection to the final piece of flue, place a locking band onto the end of the flue pipe. Clamp the flue locking band. (This locking band may be very tight!, see section for correct installation). Once all flue components are correctly in place, lock the adjustable length locking band back at the adjustable length section. NOTE: Refer to breakdown sketch shown below to aid with the following procedures. Adjustable Length Heater Horizontal Wall Terminal Adjustable Length 250mm Flue Length Heater Spigot Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 15 of 20

16 2.3 Dimensions 130mm Concentric Vertical Terminal Size A mm B mm C mm D mm E mm mm B B E E D D C C A A Concentric Horizontal Terminal Size A mm B mm C mm D mm E mm mm C B 130mm C B A E A E D D page no. 16 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

17 90 Elbow Size A mm B mm Elbow Size A mm B mm Lengths Size A mm SW Vertical Terminal Size A mm B mm B SW Horizontal Terminal Size A mm B mm D mm E mm A D E Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 17 of 20

18 2.4 Flue Parts Lists Item Description 80mm Part No. 100mm Part No. 130mm Part No. for use on.. NVx15-25 NVx30-40 VPC30-52 NVS30 NVx60-140SF VPC NVS mm Length PM PM PM mm Length PM PM PM mm Length PM PM PM mm-230mm Adjustable Length PM PM PM Adjustable PM PM PM Condense Length (250mm) PW0014A PW0015A PW0016A 45 Elbow PM PM PM Elbow PM PM PM Single Flue Vertical Gas Terminal PM PM PM Single Flue Horizontal Gas Terminal PM PM PM page no. 18 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.

19 Item Description 80mm Part No. 100mm Part No. 130mm Part No. for use on.. NVx15-25 NVx30-40 VPC30-52 NVS30 NVx60-140SF VPC NVS PM PM PM Individual Wall Band PMSW/IWB1 PMSW/IWB2 PMSW/IWB3 Double Wall Band PMSW/DWB1 PMSW/DWB2 PMSW/DWB3 Single Flue High Temperature Flashing Concentric Horizontal Terminal NVC/HTK1 NVC/HTK2 NVC/HTK3 Concentric Vertical Terminal NVC/VTK1 NVC/VTK2 NVC/VTK3 Concentric High Temperature Flashing Concentric - Vertical Flue Kit NVC/VFK1 NVC/VFK2 NVC/VFK3 Concentric - Horizontal Flue Kit NVC/HFK1 NVC/HFK2 NVC/HFK3 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar page no. 19 of 20

20 2.5 Condensate Drains Guidance Condensation generally occurs within a flue or chimney when flue gases are cooled to the point where they are no longer able to hold water vapour. As a result, excess water vapour condenses to form droplets. Flue gas condensate from gas fired heaters is mildly acidic, with a ph level of 3 6. Suitable drain points Condensate may be piped and discharged to a number of points within a building including:- internal stack pipe, waste pipe, external drain or rainwater hopper provided it is part of a combined system (i.e. sewer carries both rainwater & foul water). Condensate pipe fall Condensate pipework for each flue should be a minimum of 15mm diameter and installed with a fall of at least 2½ away from the heater. Bends should be kept to a minimum. Fixing Must be adequate to prevent sagging. A maximum spacing of 0.5m for horizontal and 1.0m for vertical sections should be adequate. Pipe material Suitable materials for condensate drainage pipes are plastics used for standard wastewater plumbing systems or cistern overflow pipes. Copper & mild steel pipes / fittings must NOT be used. Condensate pumps Where a drain point cannot be reached by gravity, a suitable condensate pump can be considered. Pump manufacturer's instructions must always be followed. Connection to internal stack The stack to which the condensate pipe is to be connected must be in a material that is resistant to condensate, such as the plastic materials suggested for condensate pipes. Connection to external stack If the termination is to be to an external stack then in addition to the requirements for connecting to an internal stack, extra care is necessary in order to reduce the risk of the drain becoming blocked due to the condensate freezing. A length of pipe external to the building of not less than 50mm diameter should be kept as short as possible and not more than 3m. Any trap in the drainpipe must be fitted within the building. In exposed locations the pipe should be protected with waterproof pipe insulation to prevent ice forming within the condensate pipework. Condensate traps Building regulations require a trap in the pipe whether it is terminated directly to the outside or before it connects to another waste pipe. If the drain pipe is taken directly to a gully or rainwater hopper, a water seal of no less than 38mm is required. When connected to another waste pipe the water seal must be at least 75mm, to prevent foul smells entering the building. Condense neutralisation If neutralisation is used, it must be subject to a routine replacement programme, in line with the manufacturers/suppliers guidelines, typically annually. More information is available from our web site on:- HEATING DIVISION Hort Bridge Ilminster, Somerset TA19 9PS Tel: Fax: Every effort is made to ensure accuracy at time of going to press. However as part of continued product improvement, we reserve the right to alter specification without prior notice. page no. 20 of 20 Flue & Flue Kits for NVx, VPC and NVS Installation Instructions Doc Ref M505 issue 2.1 Mar 2018.