Add factory layout concept diagram and fix fire-suppression section structure
- docs/facility-layout.drawio: zoned floor concept (production, galvanics, utilities, logistics, support) with material and stamper flow arrows - PNG and PDF exports alongside the source - facility-security.md: suppression subsection no longer splits the fire safety bullet list; clean agent wording updated to FK-5-1-12
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<diagram id="cnx-factory-layout" name="Factory Layout Concept">
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</mxCell>
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<mxCell id="ctower" value="Cooling tower (outside)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=11;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="mastering" value="Mastering and Cutting Room (low vibration, far from presses and compressor)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#E1D5E7;strokeColor=#9673A6;fontSize=12;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="qc" value="QC and Listening Room (test pressing approval)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#E1D5E7;strokeColor=#9673A6;fontSize=12;" vertex="1" parent="1">
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<mxCell id="entrance" value="Entrance, Reception and Visitor Control (access control, PPE issue)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#E1D5E7;strokeColor=#9673A6;fontSize=12;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="airlock" value="Decon Airlock" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#FFE6CC;strokeColor=#D79B00;fontSize=11;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="galvanics" value="Galvanics Clean Room: Silvering, Pre-plate, Electroforming Cells, Electro-clean (positive pressure)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#FFE6CC;strokeColor=#D79B00;fontSize=12;" vertex="1" parent="1">
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<mxCell id="watertreat" value="Water Treatment and Metal Recovery (zero discharge)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F8CECC;strokeColor=#B85450;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="710" y="140" width="150" height="170" as="geometry" />
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</mxCell>
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<mxCell id="chemstore" value="Chemical Storage (locked)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F8CECC;strokeColor=#D6B656;strokeWidth=3;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="440" y="320" width="130" height="70" as="geometry" />
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</mxCell>
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<mxCell id="stamperprep" value="Stamper Prep: Punch, Back-finish, Coining" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#DAE8FC;strokeColor=#6C8EBF;fontSize=11;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="semiauto" value="Semi-Auto Press Area: Newbilt Duplex, 2x HRP 12 press, VEX 50 extruder (splatter, color, small runs)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#DAE8FC;strokeColor=#6C8EBF;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="360" y="420" width="240" height="220" as="geometry" />
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<mxCell id="autopress" value="Automated Press Area: Pheenix AD12 row (volume production, 1 operator per 4 presses)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#DAE8FC;strokeColor=#6C8EBF;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="620" y="420" width="240" height="220" as="geometry" />
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</mxCell>
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<mxCell id="trim" value="Trimming and Label Dry Oven" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#DAE8FC;strokeColor=#6C8EBF;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="360" y="660" width="240" height="100" as="geometry" />
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</mxCell>
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<mxCell id="hydraulic" value="Hydraulic Aggregate Room (outside pressing room)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="620" y="660" width="150" height="100" as="geometry" />
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</mxCell>
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<mxCell id="boiler" value="Boiler / Steam Room (outside wall, DIW regs)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#D6B656;strokeWidth=3;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="900" y="140" width="130" height="110" as="geometry" />
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</mxCell>
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<mxCell id="compressor" value="Compressor Room (far from cutting room)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="1050" y="140" width="130" height="110" as="geometry" />
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</mxCell>
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<mxCell id="chiller" value="Chiller Room (closed loop cooling)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="1190" y="140" width="130" height="110" as="geometry" />
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</mxCell>
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<mxCell id="electrical" value="Electrical Switchroom and Deye Inverters" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=11;" vertex="1" parent="1">
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<mxGeometry x="900" y="270" width="200" height="110" as="geometry" />
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</mxCell>
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<mxCell id="pvcstore" value="PVC Material Storage, Grinder and Recycling (80/20 feed mix)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="900" y="420" width="180" height="160" as="geometry" />
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</mxCell>
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<mxCell id="packaging" value="Packaging: Cartons and Sleeves (local partners)" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="900" y="600" width="180" height="140" as="geometry" />
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</mxCell>
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<mxCell id="warehouse" value="Finished Goods Warehouse" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="1100" y="420" width="220" height="200" as="geometry" />
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</mxCell>
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<mxCell id="dropship" value="Dropshipping Fulfillment Corner" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=12;" vertex="1" parent="1">
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<mxGeometry x="1100" y="640" width="220" height="100" as="geometry" />
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</mxCell>
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<mxCell id="dock" value="Loading Dock" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=11;horizontal=0;" vertex="1" parent="1">
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<mxGeometry x="1350" y="470" width="70" height="200" as="geometry" />
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</mxCell>
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<mxCell id="legendtitle" value="Legend" style="text;html=1;align=left;fontSize=12;fontStyle=1;strokeColor=none;fillColor=none;" vertex="1" parent="1">
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<mxGeometry x="370" y="775" width="100" height="20" as="geometry" />
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</mxCell>
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<mxCell id="leg1" value="Production" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#DAE8FC;strokeColor=#6C8EBF;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="370" y="800" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="leg2" value="Galvanics and Chemistry" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFE6CC;strokeColor=#D79B00;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="530" y="800" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="leg3" value="Utilities" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#F5F5F5;strokeColor=#666666;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="690" y="800" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="leg4" value="Storage and Logistics" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#D5E8D4;strokeColor=#82B366;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="370" y="836" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="leg5" value="Offices and Support" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#E1D5E7;strokeColor=#9673A6;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="530" y="836" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="leg6" value="Safety critical (thick border)" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#FFF2CC;strokeColor=#D6B656;strokeWidth=3;fontSize=10;" vertex="1" parent="1">
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<mxGeometry x="690" y="836" width="150" height="26" as="geometry" />
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</mxCell>
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<mxCell id="f1" value="PVC" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#82B366;fontSize=10;html=1;" edge="1" parent="1" source="pvcstore" target="autopress">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f2" value="" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#6C8EBF;fontSize=10;html=1;" edge="1" parent="1" source="semiauto" target="trim">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f3" value="" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#6C8EBF;fontSize=10;html=1;" edge="1" parent="1" source="autopress" target="trim">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f4" value="records" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#6C8EBF;fontSize=10;html=1;" edge="1" parent="1" source="trim" target="packaging">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f5" value="" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#82B366;fontSize=10;html=1;" edge="1" parent="1" source="packaging" target="warehouse">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f6" value="ship" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#82B366;fontSize=10;html=1;" edge="1" parent="1" source="warehouse" target="dock">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="f7" value="scrap regrind" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#82B366;fontSize=10;html=1;" edge="1" parent="1" source="trim" target="pvcstore">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="s1" value="lacquer" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#D79B00;fontSize=10;html=1;" edge="1" parent="1" source="mastering" target="airlock">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="s2" value="nickel shells" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#D79B00;fontSize=10;html=1;" edge="1" parent="1" source="galvanics" target="stamperprep">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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<mxCell id="s3" value="stampers" style="edgeStyle=orthogonalEdgeStyle;rounded=0;dashed=1;strokeColor=#D79B00;fontSize=10;html=1;" edge="1" parent="1" source="stamperprep" target="autopress">
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<mxGeometry relative="1" as="geometry" />
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</mxCell>
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</root>
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</mxGraphModel>
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</diagram>
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</mxfile>
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@@ -67,15 +67,46 @@ option per room.
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- **Fire detection and alarm** throughout; suppression matched to each zone
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(hot PVC and hydraulic oil in pressing, chemistry in galvanics, paper and
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cartons in packaging/finished goods, and the boiler room).
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- **Boiler room safety**: the steam generator (10 bar, 180 °C) needs its own
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room, safety valves and interlocks, and inspection per Thai boiler
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regulations (Department of Industrial Works requirements, licensed boiler
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operator).
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room, safety valves, fuel shutoff interlocks, and inspection per Thai
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boiler regulations (Department of Industrial Works requirements, licensed
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boiler operator).
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- **Emergency equipment in galvanics**: eyewash stations and emergency
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shower at the plating line, spill kits, and neutralizing agents.
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- **Emergency lighting, marked exits, assembly point**, and first-aid
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coverage on every shift.
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### Suppression design position: zoned, not full-building gas
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A full-building gas suppression system is ruled out: gas agents only work in
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sealed volumes that can hold concentration, which a ventilated production
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hall with people and loading doors cannot, and CO2 flooding is lethal in
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occupied spaces. The design position is zoned suppression:
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- **Clean agent gas** (FK-5-1-12, sold as Novec 1230, or inert gas such as
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IG-541) only in small, sealed, high-value rooms: the server/IT room,
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electrical switchrooms, PLC/control cabinets (in-cabinet micro systems),
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and above all the master/stamper archive, where sprinkler water would
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destroy lacquers and paper records and corrode the metal parts even in a
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minor event.
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- **Water** (sprinklers, or water mist where equipment matters) for the
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large spaces: production, warehouse, and packaging/finished goods, where
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paper cartons are the largest fire load in the building. The press hall's
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specific risk is a hydraulic oil spray fire (200 L at 180 bar); water
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mist handles oil fires well and is gentler on machines than deluge.
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- **Battery stack (BESS)**: gas does not stop lithium thermal runaway. Per
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NFPA 855 practice the stack needs off-gas and early-smoke detection,
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electrical isolation on alarm, physical separation from production
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(ideally its own enclosure), and deflagration venting. Detection and
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containment over suppression.
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- **Galvanics**: low fire load (aqueous baths); local clean-agent
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protection for rectifier cabinets is sufficient.
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The property insurer will drive much of the final specification, so involve
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them before the design is fixed. The archive gas system and the BESS
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detection affect room layout and belong in the site design brief early.
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## Plant systems and monitoring
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- **Utility monitoring and interlocks**: fume-extraction interlocks on the
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