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MVHR & Quiet-Vent Radial

Ductwork Installation Manual

The Home of Fresh Air

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Summary of Contents for MVHR Series

Page 1: ...MVHR Quiet Vent Radial Ductwork Installation Manual The Home of Fresh Air ...

Page 2: ...dial pipe to Plenums 1 10 Installation of Plenums to ceiling or wall 1 11 Installation of Air Valves 1 12 Optional Heaters and coolers 1 13 Optional Fire control 1 14 Commissioning Contact Us Website www bpcventilation com Tel 028 2827 5150 Email technical bpcventilation com 2 Notes on this guide This guide features the use of our premier kit with flexible pipe connectors additional silencer and p...

Page 3: ...ery System Safety Always wear appropriate personal protective equipment Always wear a protective face mask when using duct insulation It is recommended to use walking boards when working in a loft void If the loft is fully insulated when work is being carried out it is recommended to provide adequate air throughout the installation process Electrical connections should be made by a qualified elect...

Page 4: ...cer and pro air valves MVHR Unit Boost Switch Semi Rigid Radial ductwork Sealing Rings Distribution Box Plenum Flexible pipe connectors Semi Flex silencers Detailed plans if provided Silver foil tape Solid rigid PVC pipe 90 degree bends for PVC pipe Connector for PVC pipe Silver foil faced insulation Duct Sealant Air Supply valve Air Extract valve S Steel external cowl Fixing Strap 150 to 125 redu...

Page 5: ...otected from freezing The waterless trap and condensation drain is available as an additional accessory to our kits We recommend you install boost switches outside the bathrooms 2 gang switches are also available that incorporate the light switch 1 2 Installation of MVHR controls Refer to MVHR owners manual 1 3 Installation of Condensation drain Refer to owners manual If available we recommend the...

Page 6: ...n 150mm spigot can be reduced to 125mm with provided reducer 10 point top entry box for floor or ceiling installation 150mm spigot can be reduced to 125mm with provided reducer also available with 180mm spigot on request 8 point rear entry box for floor or wall installation 150mm spigot can be reduced to 125mm with provided reducer 15 point rear entry box for floor or wall installation 150mm spigo...

Page 7: ...formed Alternatively a small length of flexible ducting could also be used Dry fit the pipework so lengths can be cut to size 1 5 Installation of Rigid ductwork to MVHR unit Install glue to male fitting with duct sealant or PVC glue Tape with silver foil tape do not use duct tape Insulate external pipes and pipes above insulation in cold areas with foil faced insulation Install semi flexible silen...

Page 8: ... unit should be insulated and final connections by a flexible pipe connector Ductwork from the unit should be kept to a minimum and preferably not exceed 5 meters The most popular provided Stainless Steel cowls come with a mesh Please carefully remove the mesh if the cowls do not have easy access for cleaning Optional PVC louvred vents can be used on walls or soffits but are more susceptible for r...

Page 9: ...ve of pipe Any unused ports on the distribution box need sealed by first removing the pipe retaining clip Insert the blue sealing caps as far as possible into distribution box Unit and distribution boxes completed The Radial pipe is easy to cut with either a fine toothed handsaw or Stanley knife we can also supply a professional radial pipe cutter if preferred Contact Us Website www bpcventilation...

Page 10: ...ps or fixing band every 1 meter The pipe can be joined if required with available connectors The pipe can be bent two to four times its radius and tight 90 degree bends are available if required It is recommended that if there is any radial pipe installed in a cold area it is insulated over with loft insulated or foil faced insulation The air capacity is maximum 36m3h r per pipe and it is quite no...

Page 11: ...ipe Insert one or two pipes into plenum and fit the retaining clips If only inserting one pipe please seal plenum with provided blanking cap Insert sealing ring onto cap Push cap into plenum and secure with retaining clips During installation the radial systemneedstobekeptairtight to prevent condensation and dirt entering the system Install end caps or tape both the plenums and external vents dist...

Page 12: ...ling fix plenum with screws onto concrete We recommend that during construction you do not cut plenums to length Fit a sealing cap or seal opening with tape It is important that the system is kept air tight until ready for operation or condensation and dirt will accumulate inside the ductwork After plasterboard and plastering has been completed trim the plenum down flush with the finished ceiling ...

Page 13: ... fasten the air valve to the frame with a half turn clockwise The valve is adjusted by screwing the valve in or out and then locking with provided nuts Designer Air Valves Optional designer air valves can be used for both air supply and extract and can be installed flush to the wall or ceiling To install the designer valve you will require a mounting frame and a airflow regulator installed in the ...

Page 14: ...here are a number of solutions that can provide additional heat or cooling to further improve the efficiency and personal comfort of your ventilation system Electric duct heaters can be installed as pre heaters for frost control or post heaters to supply warm air to rooms Water batteries are used to either heat or cool the air by using water supplied from your heating or A C system A MVHR geotherm...

Page 15: ...1 Adjust all air valves by closing them then opening them by 2 full turns and set unit speed 2 Start at the furthest extract valve and check the air flow volumes at all of the outlets and note the air volume to each room whilst doing this make sure that the direction of flow is correct 3 If the measured air flow is above or below the requirement set out on the provided flow rates adjust each air v...

Page 16: ...by email or telephone that can help you Most Information can also be found on our website We are Here To Help Don t worry if you need some extra items to complete your install We have thousands of ventilation parts in our distribution centre that are available for express delivery If you do require the MVHR system installed or commissioned we have a large network of fully trained installers throug...

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