07-assumptions.md
Download07 — Assumption Ledger
Project: Kingsford Hotel Bacolod — BMS Status: living document — updated through phases.
| ID | Assumption | Rationale | Impact if wrong | Source / phase |
|---|---|---|---|---|
| A-001 | Project is greenfield (new construction) despite cover-letter wording "Rehabilitation". | Technical inputs are Construction Bulletins against a "For Construction" set, no existing-system inventory, kitchen-layout adjustments. Phase 2 triangulation. | High. Rehab classification would add demolition takeoff, after-hours premiums, cable-reuse evaluation (~₱2–4M cost addition). | Phase 2 / Q-001 |
| A-002 | Guestroom-floor footprint = ~60 m × 50 m typical floorplate; ~25–35 guestrooms per typical guest floor; ~10 guest floors above L3, plus roofdeck. | EE-24 Part 1 only shows Basement↔3F; MC Standards references "Roof Deck Level (Guest Room Levels)"; project-scale tier (Medium) and Bacolod hotel comparables. | Medium. ±20% on guestroom-floor field-device count and corridor cable runs. | Phase 3 / Q-005 |
| A-003 | Equipment counts per system class follow MC Standards typical density × project zoning on BMS-01/02 (e.g., 1× DOAS per floor band, 1× PAHU per landlord-zone, 1× AHU per public area). | Mechanical layouts not in inputs; standard developer practice. | Medium. ±15% on A2 takeoff. | Phase 3 / Q-006 |
| A-004 | Full EE drawing set is consistent with CB#8 (no contradictions on non-bulletin sheets). | Only revised sheets supplied; latest-issued plan governs. | Low. Revisions affect kitchen power, not BMS bus. | Phase 3 / Q-007 |
| A-005 | Upper-floor riser geometry mirrors typical hotel pattern — single trunk shaft, 1× cable tray per floor for BMS bus + power, ~3.5 m floor-to-floor. | EE-24 Part 2 missing; standard high-rise hotel construction. | Medium. ±15% on inter-floor riser cable lengths. | Phase 3 / Q-008 |
| A-006 | BMS-01/02/03 is the complete project-specific BMS sheet set. Hot-water-distribution and in-guestroom BMS scope is not included unless added by addendum. | Only 3 sheets in inputs; no BMS-04 referenced. | Medium. Could re-scope hot-water and guest-floor BMS. | Phase 3 / Q-002 |
| A-007 | BMS-panel power feed = 1× 20 A, 230 V, 1-phase circuit per BMS panel, supplied and terminated by EE Contractor at a knife-disconnect; BMS Contractor terminates downstream. | No BMS feeder named on EE-21/22/23; standard practice. | Low. Power-provision section only. | Phase 3 / Q-009 |
| A-008 | Customer GUI / graphics standard per BMS general spec on BMS-01 (per-floor graphics, per-system graphics, summary dashboards, alarm console, trend logs). | No separate GUI standard in inputs; spec already covers GUI requirements. | Low. Refines B2 graphics list. | Phase 3 |
| A-009 | FAT/SAT protocol per industry standard form (Megaworld-equivalent template), with point-by-point sign-off, PDF as-built, owner manual binders. | No protocol in inputs. | Low. Scope already inclusive. | Phase 3 |
| A-010 | Training = 2-day operator-level + 1-day admin/super-user, on-site at handover; 6 trainees × 1 batch. | Not stated; standard inclusion. | Low. Optional row in BOQ. | Phase 3 / Q-016 |
| A-011 | M&O after handover = priced as a 1-year preventive maintenance option (4× scheduled visits, 1× annual deep service, 24/7 phone support). | Not stated; offered standalone. | Low. Optional. | Phase 3 / Q-017 |
| A-012 | Drawing scale calibration = column grid bay ≈ 7.5 m on EE-03/06/09/12 (mid-range of 6–9 m structural-grid hotel/casino bays). | No explicit scale bar; structural grid recoverable from layouts. | Low–Medium. ±10% on measured cable lengths. | Phase 3 / measure-cable-routes |
| A-013 | Head-end / server location in a central control room on Basement 1 or GF (TBD in coordination); BMS LAN as a standalone backbone with single uplink for off-network reporting. | No room marked; standard hotel BMS pattern. | Low. Affects A5/A6 narrative only. | Phase 3 / Q-011 |
| A-014 | Project schedule = 8 months end-to-end (engineering 8 wk, supply lead 12 wk paralleling, install 16 wk, T&C 8 wk, training/handover 2 wk). | No customer schedule stated. | Medium. Drives D1/D2/B4 productivity. | Phase 3 / Q-013 |
| A-015 | Commercial terms = 12-month warranty after substantial completion; 30/30/30/10 progress payment; 10% retention released at handover; 12% VAT-inclusive; LD 0.1%/day to cap 10%; no escalation. | Industry-standard defaults; not stated. | Variable — affects pricing/cashflow. | Phase 3 / Q-014 |
| A-016 | Casino BMS scope (BMS-02 tabulation) is included in BMS Contractor scope (Casino is part of the Kingsford property, not a separate fit-out). | Single proposal request; Casino I/O on the same project-specific points list. | Medium. Could split if Casino is a separate operator. | Phase 3 / Q-003 |
| A-017 | Fire alarm / security / IT integration is excluded from BMS scope — BMS-only HLI to power-meter consumption (per points list), no FDAS/CCTV/access tie-in unless requested. | Not in points list; standard BMS-Contractor scope. | Low. Listed as exclusion. | Phase 3 |
| A-018 | Power monitoring scope = HLI to existing EE meters / sub-meters where Modbus-equipped; no additional power-meter supply by BMS Contractor. | Standard split per MC Standards C/O (Equipment Supplier provides meters; BMS reads HLI). | Low. Scope clarity only. | Phase 3 |
| A-019 | Containment (cable tray + conduit) supplied and installed by BMS Contractor for BMS-cabling backbone; trunk-tray sharing with other low-voltage allowed where approved. | BMS Contractor scope per "Complete Supply, Delivery, Installation"; consistent with module cabling-and-containment.md. | Medium. ±10% on installation labour. | Phase 3 |
| A-020 | Rate library = _playbook/checklists/standard-pricing-defaults.yaml PHP rates with typical 15% spare for cabling and 10% spare for I/O. | Standard rate library; no project-specific quotes received. | Variable — to be refined post-RFQ. | Phase 6 |
(Additional A-NNN added through Phase 5–10.)