{ "version": "2.0.8", "blockingPrinciple": "A calculator is disabled where the controlling geometry or installation rule cannot be established from the supplied documents.", "items": [ { "manufacturer": "Actionair", "family": "CSS", "issue": "The slab drawing combines an overall +10 to +30 mm opening with 5 to 20 mm edge clearances.", "decision": "Store overall oversize and per-edge constraints separately; do not assume central positioning." }, { "manufacturer": "Actionair", "family": "DWFX-F", "issue": "Ordinary masonry pages do not publish a complete numerical opening rule.", "decision": "Keep those methods guidance-only unless the official drawing or hole-sizing logic is available." }, { "manufacturer": "Lindab", "family": "WKS25", "issue": "Type A light-wall opening is +75 in the installation booklet and +70 in the short datasheet.", "decision": "Use +75 provisionally and show an audit warning." }, { "manufacturer": "Advanced Air", "family": "26SCD", "issue": "Published tables are based on centralised installation but the detailed AFS constraints permit non-central positioning.", "decision": "Store table result and edge-limit logic separately; maximum case-to-edge clearance 130 mm, recommended batt space 25 mm." }, { "manufacturer": "All", "family": "All", "issue": "Nominal duct and casing/frame dimensions are not interchangeable.", "decision": "Every setting-out calculation must identify its geometry reference explicitly." }, { "manufacturer": "BSB", "family": "FSD-TD", "issue": "FSD-TD-C uses circular spigots on a rectangular multiblade casing, while FSD-TD-O lacks an explicit orderable flat-oval size/configuration table in the supplied series document.", "decision": "Enable FSD-TD-C only for the listed circular diameter table and calculate through the rectangular casing/method chain. Keep FSD-TD-O verification-required and do not extrapolate flat-oval configurations." }, { "manufacturer": "BSB", "family": "FD Series Type C with Angle Frame", "issue": "The product code FD-C-AF can be confused with the separate FD-C Series circular single-blade damper. A site label confirms an FD-C-AF at Ø355.", "decision": "Create a distinct FD-C-AF product path. Apply the FD Series Type C circular-spigot and rectangular-casing geometry before the selected FD-AF method's 10 ±5 mm casing gap. Do not add Ø355 or Ø560 to FSD-TD-C." } ], "entries": [ { "date": "2026-08-29", "manufacturer": "VentTools", "release": "V2.0.8-FD-USABILITY-AND-LINING-CONTROL", "summary": "Improved independent product identification, made the complete opening chain permanently visible and prevented alternative reveal-lining thicknesses from being presented as manufacturer-verified.", "controls": [ "Original VentTools line diagrams are generic identification aids and are not manufacturer photographs or scale drawings", "Nominal duct, casing, finished aperture and structural cut remain visible without expanding a disclosure", "12.5 mm remains the recorded reference reveal lining where the selected mapped method includes one layer at each internal edge", "A 15 mm reveal-lining selection recalculates the structural cut but is explicitly marked review required", "Wall-face board layers remain separate from the aperture reveal-lining calculation" ] }, { "date": "2026-08-29", "manufacturer": "VentTools", "release": "V2.0.7-PUBLIC-VERIFICATION", "summary": "Published the engineering verification method and author accountability as static public content while preserving the V2.0.6 calculation baseline.", "controls": [ "The V2.0.6 bend take-off tables and common offset arithmetic remain unchanged", "A measured one-bend take-off can be entered for delivered fittings that differ from the recorded table", "Fire-damper calculation code and structured manufacturer rules remain unchanged", "Public guides distinguish nominal duct, casing, finished aperture, structural opening and reveal lining" ] }, { "date": "2026-08-26", "manufacturer": "VentTools", "release": "V2.0.6-OFFSET-UX", "summary": "Improved the mobile offset-calculator controls and site wording without changing the calculation engine.", "controls": [ "Straight-cut result is labelled as the cut straight between bends", "Standard circular duct sizes use a quick selector with a custom-size fallback", "Existing bend take-off tables, offset formulae and 120 mm editable swedge-limit warning are unchanged", "The fit warning is displayed immediately below the primary result" ] }, { "date": "2026-08-21", "manufacturer": "BSB", "release": "V2.0.5-BSB-FD-C-AF", "summary": "Added the BSB FD Series FD-C-AF curtain-blade circular-spigot product as a separate calculator family, including verified Ø355 and Ø560 geometry.", "controls": [ "FD-C-AF is not conflated with FD-C Series or FSD-TD-C", "Nominal diameter, D-3 spigot, rectangular casing, Angle Frame and aperture remain separate", "FD M9/M10/M11 retain the published 10 ±5 mm casing-gap tolerance" ] }, { "date": "2026-08-21", "manufacturer": "BSB", "release": "V2.0.4-BSB-FSD-TD-FAMILY", "summary": "Added listed-diameter FSD-TD-C calculations, explicitly structured FSD-TD-S/C/O variants, and preserved nominal spigot to rectangular casing to clearance to structural opening geometry.", "controls": [ "No opening calculated from circular spigot diameter alone", "No diameter extrapolation outside the FSD-TD-C table", "FSD-TD-O remains disabled pending an explicit size/configuration table" ] }, { "date": "2026-07-19", "manufacturer": "Lindab", "release": "RC10-LINDAB", "summary": "Added method-specific builder setting-out mapping and Lindab engineering database for FNC1, WH25, WH45, WK25, WK45 and WKS25. FNC1U remains locked pending installation manual.", "controls": [ "No invented casing projection", "Centred opening used only where shown/defined by tested opening detail", "Method-specific supports/fixings/separations retained" ] } ] }