PIV ONE Loft Mounted Positive Input Ventilation Unit

The Elta PIV ONE is a loft mounted whole house positive input ventilation unit. It supplies fresh, filtered air to the central hallway or landing at up to 216 m³/h (60 l/s) at 100 Pa, diluting, displacing and replacing stale, humid air to cure condensation and mould and reduce radon gas concentration. This model has no heater.Double filtration is standard: a washable magnetic pre-filter that comes off without tools, and an ISO Coarse 60% (G4) primary filter, upgradeable to an IAQ filter for PM2.5 diesel particulates. Its EC motor draws 24W, Elta quote 27 dB(A) at 3m, the casing has acoustic foam lining and it carries a 5 year warranty. Up to 216 m³/h Unheated Double filtration as standard What it is best used forHouses and bungalows with a loft that suffer from condensation, black mould and stale air, typical in rented homes and older properties, and homes where radon needs diluting. It is pre-wired for two speeds from a remote switch, with factory settings of 104 m³/h (29 l/s) and 216 m³/h (60 l/s).It needs a loft above the central landing, so flats without a loft should use a wall mounted unit such as the SANO IPIV WALL H. Without a heater, the incoming air is not tempered, which some occupants notice as a draught in winter.Why choose this over alternativesThe PIV ONE is the simplest model in Elta's loft PIV range: no heater to run, the highest airflow of the loft units at up to 216 m³/h, and filtration that can be upgraded for homes near main roads. If the occupants are likely to feel the incoming air as cool, the PIV ONE PLUS+ adds a built-in heater on the same platform.The SANO IPIV LOFT H is the alternative for installers who want intelligent temperature and humidity regulation (ECO-LoFlo) and summer standby; for homes without a loft, see the SANO IPIV WALL H.Installation notes Mount the unit horizontally on the loft floor or the underside of the roof structure, on a flat surface that will take its weight; anti-vibration mounts (not supplied) are recommended. Fit the ceiling diffuser centrally on the top floor hallway or landing. Near a smoke alarm, fit the supplied blanking plates so air does not blow across it. In homes of 3 storeys or more, interlock the unit with the smoke alarm so it powers down when the alarm sounds; the standard diffuser is not suitable for 3 storey or higher homes or fire protected areas. Leave access to the filters and terminal box, and provide an omnipolar isolating switch. Installation by an authorised installer. Clean the pre-filter and G4 filter with a vacuum cleaner; Elta advise replacing the filters every year, depending on conditions. Browse more positive input ventilation (PIV) units or domestic fans, or call us for help choosing the right product.Specifications Model PIV ONE Brand Elta Type Loft mounted PIV Heater No Max airflow 216 m³/h (60 l/s) at 100 Pa Power 24W Sound pressure 27 dB(A) at 3m Filtration Magnetic washable pre-filter + ISO Coarse 60% (G4) Supply 220 to 240V 50/60Hz Warranty 5 Year Manufacturer Motor EC IP rating IPX2 Max ambient temperature 40°C Factory speeds 104 m³/h (29 l/s) and 216 m³/h (60 l/s) Mounting Horizontal, loft floor or ceiling Manuals & Guides Elta PIV ONE Datasheet Elta PIV ONE Installation