VERTEX COORDINATES (origin at SW) — v03 PNG-VERIFIED
Vertex
X (m)
Y (m)
Description
SW
0.00
0.00
South wall, west end (diagonal base)
SE
7.37
0.00
South wall, east end
NE
7.37
4.31
North wall, east end
NW
-1.23
4.31
North wall, west end (1.23m WEST of SW)
WIDTH AT KEY LEVELS (Room WIDENS northward)
Level
Y from South
Width (E-W)
South wall
0.00 m
7.37 m (narrowest)
Column row
1.11 m
7.69 m
Mid-height
2.16 m
7.99 m
North wall
4.31 m
8.60 m (widest)
Width formula (CORRECTED): W(Y) = 7.37 + (Y / 4.31) × 1.23 meters
Room WIDENS going north. Previous v01 had the sign wrong (minus instead of plus).
COLUMN POSITIONS (PNG-VERIFIED 2026-03-04)
Column
Size (cm)
X from SW (m)
Y from South (m)
Notes
COL-WEST
60 x 50
3.34 (west face) 3.94 (east face)
1.11 (south face) 1.61 (north face)
Center at (3.64, 1.36) — PNG: 334 cm from SW corner to west face
COL-EAST
60 x 55
7.27 (west face) 7.87 (east face)
1.06 (south face) 1.61 (north face)
Center at (7.57, 1.33) — partially embedded in east wall (~50 cm past, ~10 cm visible)
Clear span
333 cm (COL-WEST east → COL-EAST west)
Center-to-center: 393 cm
DAIKIN VRF INDOOR UNITS
Unit
DXF Block
Location
Status
U380
*U380
Inside zone, near SE corner ~6.88m E, ~0.50m N from SW
APPROXIMATE
U370 / U371
*U370 / *U371
~2.7m EAST of zone (adjacent area)
Outside zone
U328
*U328
~10m+ east (different B3 area)
Outside zone
Coordinate mapping is approximate. The furniture DXF (meters) and HVAC DXF (millimeters) use different origins.
Positions derived from offset calculation: HVAC_X = Furniture_X x 1000 + 203,000.
HVAC contractor must confirm exact unit positions on the updated floor plan.
AIR DEVICES (DIFFUSERS/GRILLES)
#
DXF Coords (mm)
Mapped Position
Inside Zone?
1
X: 252,428 | Y: 274,072
~1.73m E, ~0.04m N from SW
Near south wall
2
X: 249,780 | Y: 274,421
~0.9m west of zone
No — outside
3
X: 249,780 | Y: 273,376
~0.9m west of zone
No — outside
4
X: 248,776 | Y: 274,421
~1.9m west of zone
No — outside
5
X: 248,776 | Y: 273,376
~1.9m west of zone
No — outside
6
X: 246,104 | Y: 274,073
~4.6m west of zone
No — outside
CRITICAL FINDING: Only 1 indoor unit (U380) and 1 diffuser appear to be inside/near the yellow zone.
The remaining equipment (U370/U371 + 5 diffusers) serve adjacent areas WEST and EAST of the zone.
This confirms the "last mile" approach — existing ductwork reaches the area but delivery points need to be redesigned for acoustic rooms.
ACOUSTIC HVAC STRATEGY
Action
Detail
Indoor unit (U380)
Relocate to corridor/editing zone (non-critical area). Must NOT be in VO Live Room or Control Room.
Oversize final drops
Increase duct diameter by 1-2 sizes to reduce velocity. Target: flow velocity < 3 m/s in duct.
Acoustic plenum boxes
Expanded boxes with 50mm rockwool lining (60 kg/m³). Face area: 44x44 cm minimum for 600 CFM at 1.5 m/s.
Inline silencers
Rectangular baffle silencers. Max duct size 250mm to fit in 60cm ceiling space.
Flexible S-curve
Inside VO room: hard pipe transitions to flexible acoustic duct in S-curve. Breaks line-of-sight sound path.
Diffuser sizing
~2.5x standard face area needed. Target: terminal velocity ≤ 1.5 m/s at diffuser face.
NC budget
HVAC alone must achieve NC-10 to NC-12 per duct run (margin for NC-15 total in VO room).
TechTown Acoustics 2.0 | MediaVerse B3 | Doc: HVAC/2026-03-04_v03_B3-Zone-Map-HVAC.html
Generated by Claude (Opus 4.6) | v03 PNG-VERIFIED: Column positions from PNG reference dimensions
COL-WEST (3.64, 1.36)m 60x50cm | COL-EAST (7.57, 1.33)m 60x55cm (~10cm visible, ~50cm in wall) | Clear span 333cm
Coordinate mapping approximate — confirm with HVAC contractor overlay
Reference: Source/2026-03-04_MediaVerse-Reference.png (AUTHORITATIVE for column positions)