Build Tight, Ventilate Right is the mantra of the Energy Savings Trust
Site informationSite addressTo assist the technicianJob number *0 / 25Site contact *0 / 25Site contact number *0 / 25MVHR design reference *0 / 35MVHR designer *0 / 35Site specific notesHard to find, no parking, big dog etc..Critical componentsAre the exterior roof/exterior vents installed at least 1.5m apart? *YesNoOtherThese should be on the same elevation and not downwind from flues or chimneysAre all manifolds secured properly in the location shown on the design? *YesNoOtherMoving a manifold with 10 pipes by 1m means you need at least 10m more ductingAre the inspection hatches on each manifold accessible for servicing? *YesNoOtherOne day you'll need access inside the manifolds for duct cleaning purposesAre there any tight bends in the radial at the connection to the manifold? *YesNoOtherTight bends put the joint and the sealing ring under stress so they could eventually failHave all ceiling plenums been installed in the location given on the design? *YesNoOtherSmall adjustments are okay provided they are at least 400mm from an adjacent surfaceAre ceiling plenums mechanically fixed (i.e. solid) and straight vertically? *YesNoOtherIf the plenum is not straight vertically the air valve may not fit securelyDo the radial duct runs follow the design in both location and quantity? *YesNoOtherBends add turbulence, pressure, and noise. Sweeping bends offer better laminar flowWhere shown on design, are two radial pipes connected to the same ceiling plenum? *YesNoOtherCheck design - kitchens, bathrooms, and living spaces may be ‘twin piped’If specified, are fire collars and/or mechanical dampers installed correctly? *YesNoOtherBuilding Control may ask for evidence so we recommend you take photos as necessaryPlease take photosChoose FileNo file chosenDelete uploaded fileshow fire protection snags that need attentionIf the MVHR system includes a NOx filter is it somewhere serviceable? *YesNoOtherAn access hatch in the finished ceiling or wall may be needed for replacing filtersPlease take photosDrag and Drop (or) Choose Filesshow areas you think may need an accessRadial ductingHas the radial ducting been cut square at both ends with no burrs? *YesNoOtherOff-square cuts can affect the sealed joint and rough edges collect dustPlease take photosDrag and Drop (or) Choose Filesshow rough endsIs there 500mm of straight ducting before the connection to the ceiling plenum? *YesNoOtherTight bends very near the outlet create turbulence and unwanted noisePlease take photosDrag and Drop (or) Choose Filesshow tight bendsAre the black rubber sealing rings fitted to the 2nd recessed ridge? *YesNoOtherRings on the first ridge of the radial duct can cause leaks if pipe is not straightPlease take photosDrag and Drop (or) Choose Filesshow examplesAre two red retaining clips fitted to EVERY spigot that holds a radial duct? *YesNoOtherThe radial duct needs securing on both sides to stop it pulling outPlease take photosDrag and Drop (or) Choose Filesshow examplesDo the radial duct runs have unnecessary tight bends, crossovers, or crushes? *YesNoOtherBends add turbulence, pressure, and potentially noise. Wide sweeping bends are bestPlease take photosDrag and Drop (or) Choose Filesshow tight bends, crossovers, or crushesIf radial couplers are used, are they installed on a tight bend? *YesNoFitting them on a tight bend can cause air leakage over timePlease take photosDrag and Drop (or) Choose Filesshow radial connectors on a tight bendAre the ducting risers (through floors) in the location designed? *YesNoOtherFire dampers or collars may be required if the riser penetrates a fire-resisting barrierPlease take photosDrag and Drop (or) Choose Filesshow any risers in the wrong locationIs the radial ducting secured with a zip tie or banding every 600 – 1200mm? *YesNoOtherRadial ducting can wobble or vibrate if not secured properly. If in doubt add more bandingPlease take photosDrag and Drop (or) Choose Filesshow examplesIf the MVHR supports cooling has all supply-side ducting been fully insulated? *YesNoOtherInsulation needs to run from spigot to spigot covering the supply manifold tooPlease take photosDrag and Drop (or) Choose Filesshow any gaps in the insulationWhere plenums are ‘single piped’, does the spare spigot have a blanking cap? *YesNoOtherMake sure the blanking cap is well fixed. If it comes off you’ll be ventilating the floor voidPlease take photosDrag and Drop (or) Choose Filesshow any uncapped spigotsHas a smoke test been carried out to check for leaks in the radial ducting? *YesNoOtherWith caps on and manifolds sealed a smoke pellet can be used to check for leaksPlease take photosDrag and Drop (or) Choose Filesshow examplesHygiene & protectionDo ALL installed ceiling plenums have a temporary dust cap fitted? *YesNoOtherThese push-in caps keep building dust & debris out of the sterile ducting until second fixPlease take photosDrag and Drop (or) Choose Filesshow at least one missing dust capHave the large spigots on the manifolds been taped to prevent dust ingress? *YesNoOtherWe recommend sealing the manifolds with duct tape until the machine is installedPlease take photosDrag and Drop (or) Choose Filesshow the un-taped spigots on the manifoldsIf mass flow ducting is installed at first fix, has it been properly secured? *YesNoOtherMass flow ducting needs to be supported so it is not hanging by its own weightPlease take photosDrag and Drop (or) Choose Filesshow any unsupported mass flow ductingIf mass flow ducting is connected to the manifolds, is it secure? *YesNoOtherWhen in their final position the these connections should be glued and strappedPlease take photosDrag and Drop (or) Choose Filesshow any problematic mass flow connectionsFinishing off..Your name *0 / 50Date of inspection *Is the site manager aware of other trade requirement ahead of plaster boarding? *YesNoOtherPlumber for condensate, electrician for power & control cables, datapoint etc.Who did you inform?0 / 140Rate the install *012345Please sign hereStart signing your signature hereYour browser does not support e-Signature field.Click here send report
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