# B4 — Site factors (per Op#11)
metadata:
  project: Kingsford Hotel Bacolod — BMS
  date: 2026-04-28

# Conduit fraction of total cable length — drives 2.7.5 BOQ row.
conduit_fraction_of_total_cable: 0.35
conduit_fraction_basis: "Greenfield with co-installed ME-supplied tray for the trunk + horizontal runs (≈ 10–15% of cable in conduit). BMS contractor installs new PVC conduit for field-device drops and short panel-to-tray sections (≈ 20–25%). Net 35% — between greenfield-pure (10–15%) and retrofit-pure (50–70%)."

# Production-rate modifier (1.0 = standard daytime greenfield)
production_rate_modifier: 1.0
production_rate_modifier_basis: "Greenfield, day-shift, unoccupied site, standard PH market practice. No after-hours premium needed."

# Per-class device install rates (hours per equipment instance) — Op#11 expansion.
# Replaces uniform 1.0 hr/unit. Kept at conservative end of typical ranges.
device_install_rates_by_class:
  "Chiller (Package Water-Cooled)":          1.5    # external sensor mounting only; chiller arrives commissioned with BACnet HLI
  "Primary CHW Pump":                        1.0    # aux contact wiring + VFD HLI verification
  "Primary CHW Pump (Standby)":              1.0
  "Condenser Water Pump":                    1.0
  "Cooling Tower":                           1.5    # multi-point sensor + basin level switch + VFD HLI
  "Cooling Tower (Common)":                  0.6    # OA/RH common sensors
  "BTU Meter":                               3.5    # ultrasonic meter mount + Modbus terminations + commissioning verification
  "CHW Supply Main Header":                  0.6
  "CHW Return Main Header":                  0.6
  "CHW Bypass Header":                       2.5    # diff-press sensor + valve actuator + position feedback
  "Condenser Water Header":                  0.6
  "AHU (Chilled-Water-Served)":              2.5    # multi-sensor mount + valve actuator + dampers
  "AHU (Modulating CHW-served)":             3.0
  "DOAS Unit":                               3.5    # multi-sensor + recovery wheel + dual-fan VFD HLI + dampers + valve
  "Precooled Air Handling Unit":             2.5
  "FCU (guestroom/zone, hardwired)":         0.75   # 3-position valve + fan command — simple hardwired
  "Exhaust Fan (Toilet)":                    0.5
  "Exhaust Fan (General)":                   0.5
  "Calorifier (Hot Water Storage Tank)":     0.75   # immersion or strapped sensor
  "Hot Water Header Set":                    0.6    # per sensor, but allocated as one
  "Heat Pump":                               0.5
  "Recirculating Pump":                      0.5
  "Steam Boiler":                            4.5    # high-T sensors + O2 sensor + motorized blowdown valve
  "Multifunction Power Meter (Main)":        1.5
  "Multifunction Power Meter (Feeder)":      1.0

device_install_rates_basis: "Per-class rates based on PH BMS-contractor field-installation benchmarks and the complexity of each device's terminations + commissioning verification. Simple sensors (FCU valve, calorifier T) at 0.5–0.75 hr; multi-point equipment (DOAS, boiler) at 3.5–4.5 hr; specialty (BTU meter, modulating valve actuator) at 2.5–3.5 hr. AB-Run-2 surfaced uniform 1.0 hr/unit as light — these per-class rates close that gap."

# Specialty tasks
sensor_calibration_per_ai: 0.6
penetration_fraction_of_cable_ends: 0.30
penetration_rate_h: 0.5
site_safety_pct: 0.05
punch_list_pct: 0.05
documentation_pct: 0.04