# 2.3 — BMS Controller Panel Supply

Module: [bms/controller-panel](../../../_playbook/modules/bms/controller-panel.md)

Covers WBS leaves 2.3.1–2.3.7 (one instance grouped — all panels share template).

| Field | Value | Source |
|-------|-------|--------|
| Total field panels | 13 | A4 summary |
| Total controllers | 21 (one per panel + extra where I/O > 40) | A4 controller_estimate |
| Network gateways | per panel where HLI present (DOAS, casino, plumbing, boiler) | A4 |
| Brand | Siemens DESIGO PXC / equivalent (pending Q-008) | A-007 |
| Enclosure | IP54 wall-mount, sized per controller + I/O modules + 30% spare | Module standard |
| I/O modules per panel | per A1 by_type counts ÷ 16-channel module size | A1 → A4 |
| Spare capacity | 25% per AI/AO/DI/DO | A-021 |
| Power supply | 24VDC 5A per panel | A7 |
| Surge protection | at panel power input + on shielded analog inputs | Module standard |

| Panel | Location | I/O total | Controllers | Notes |
|-------|----------|-----------|-------------|-------|
| BMS-PNL-CHWPLANT-2F | 2F chiller plant | 121 | 4 | Chillers + CHWP + CDWP + headers |
| BMS-PNL-BOHAHU-2F | 2F mechanical zone | 140 | 4 (incl gateway for VFD HLI) | 10 BOH AHUs |
| BMS-PNL-AHU-2F | 2F mech | 16 | 1 (+ gateway) | PAHU-0.1 |
| BMS-PNL-CASINO-2F | 2F casino zone | 34 | 1 (+ gateway) | DOAS + sanitizers |
| BMS-PNL-AHU-RD | RD plant | 46 | 2 (+ gateway) | PAHU-RD + AHU-RD |
| BMS-PNL-CT-RD | RD plant | 36 | 1 | Cooling Towers |
| BMS-PNL-PLUMBING-LG | LG plumbing | 27 | 1 (+ gateway HP HLI) | Calorifier + HW header + HP + RP |
| BMS-PNL-PLUMBING-RD | RD plumbing | 21 | 1 (+ gateway) | Calorifier + HP + RP |
| BMS-PNL-BOILER-LG | LG laundry | 22 | 1 | Steam boilers |
| BMS-PNL-VENT-GF | GF | 27 | 1 | GF exhausts |
| BMS-PNL-VENT-2F | 2F | 39 | 1 | 2F exhausts |
| BMS-PNL-VENT-3F | 3F | 81 | 2 | 3F amenity + guestroom toilet exhausts |
| BMS-PNL-VENT-RD | RD | 9 | 1 | RD exhausts |