SIERRA ONE STAYS

PLUMBING PLAN — DOMESTIC WATER SUPPLY + DWV
SHEET P-1.0
NORTH OF HEBER, AZ — NAVAJO COUNTY
JULY 2026 — PRELIMINARY
OFF-GRID: 10,000 GAL STORAGE TANK | PRESSURE SYSTEM | UV FILTRATION | TANKLESS WH (x2) | LOW-FLOW FIXTURES | SEPTIC SYSTEM
CO E 1 23 45 67 89 1011 12LLNDRY WATERTANK 10,000 GAL 1-1/2" CW PRESSTANK UV WH-1 TNKLS WH-2 TNKLS 1" CW MAIN 1" CW MAIN 3/4" CW (REDUCED AFTER R8) 3/4" HW MAIN 3/4" HW MAIN 1/2" RECIRC RETURN P RECIRC PUMP 4" PVC MAIN DRAIN — 1/8" PER FT SLOPE TO SEPTIC 4" PVC MAIN DRAIN 3" 2" 1½" TO SEPTICSYSTEM CLEANOUT (TYP 5) VTRVTR VTRVTR 2" VENT MAIN — TIE TO VTR RISERS 174'-0" N PLUMBING LEGEND CW — COLD WATER SUPPLY (PEX-A) HW — HOT WATER SUPPLY (PEX-A) HWR — HOT WATER RECIRCULATION RETURN DWV — DRAIN/WASTE (PVC SCH 40) VENT (PVC SCH 40) — VTR = VENT THRU ROOF CO — CLEANOUT SHUTOFF VALVE GATE VALVE FIXTURE SCHEDULE WC: LOW-FLOW TOILET — 1.28 GPF (WaterSense) — 3" DRAIN LAV: VANITY SINK — 1.2 GPM (WaterSense) — 1-1/2" DRAIN SHW: WALK-IN TILE SHOWER — 1.8 GPM — 2" DRAIN WH-1, WH-2: RINNAI/NAVIEN TANKLESS — 199K BTU EA — LP GAS RECIRC PUMP: GRUNDFOS COMFORT — TIMER + AQUASTAT CONTROL

DOMESTIC WATER SUPPLY

  • Source: 10,000 gal polyethylene storage tank (exterior)
  • Pressure tank: 80 gal diaphragm, 40-60 PSI, in equip room
  • Filtration: sediment pre-filter + UV sterilization (equip room)
  • Main supply: 1-1/2" PEX-A from tank, reduced to 1" main
  • Hot water: (2) tankless heaters in parallel (Rinnai RUR199iN or equiv.)
  • LP gas supply to tankless heaters — dedicated regulator + shutoff
  • Recirculation: dedicated 1/2" return loop w/ Grundfos pump
  • Timer + aquastat control: runs only during occupied hours
  • Branch lines: 1/2" PEX-A home runs from main to each fixture
  • Shutoff valves at each room group and at each fixture
  • PEX-A rated for freeze protection — all lines insulated R-4 min
  • Isolation valves at equip room for full system shutdown

DRAIN / WASTE / VENT

  • Main drain: 4" PVC SCH 40 along rear wall, 1/8" per ft slope
  • Toilet drains: 3" PVC to main (low-flow 1.28 GPF fixtures)
  • Shower drains: 2" PVC to main
  • Lavatory drains: 1-1/2" PVC with P-trap to main
  • Vent risers: 2" PVC through roof at every 3rd bay (4 total)
  • Horizontal vent tie: 2" PVC connecting all VTR risers
  • Cleanouts: (5) at max 60' intervals per IPC
  • Main drain exits building at center to septic system
  • ADA fixtures per ANSI A117.1 — grab bars, mounting heights
  • All DWV per IPC 2018 as adopted by Navajo County

SEPTIC SYSTEM

  • Engineered septic per Navajo County / ADEQ requirements
  • Permit required prior to construction — perc test on file
  • 1,500+ gallon concrete septic tank (sized per fixture count)
  • Engineered drain field per soil conditions
  • Distribution box between tank and field
  • Min 100' setback from water tank per ADEQ
  • Grease interceptor recommended for any future kitchen drain
  • Cleanout at building exit and at tank inlet
  • Navajo County inspection required at each phase

SIERRA ONE STAYS

ELECTRICAL PLAN — POWER, LIGHTING + MINI-SPLIT CIRCUITS
SHEET E-1.0
NORTH OF HEBER, AZ — NAVAJO COUNTY
JULY 2026 — PRELIMINARY
OFF-GRID: 30+ kW SOLAR | 100+ kWh BATTERY | 20 kW LP GENERATOR | 200A MAIN PANEL | HOME-RUN WIRING TO ALL ROOMS
GF S S/C D EF E1 23 45 67 89 1011 12LLNDRY MAIN PANEL 200A / 42-CKT 120/240V 1PH INV/ BATT BANK 200A FEED ATS GEN 20kW LP PROPANE GEN FEED 120V HOME RUNS — 12/2 NM-B IN EMT CONDUIT (REAR WALL) 240V/60A VRF OUTDOOR UNIT — 6/3 IN EMT (SINGLE CIRCUIT) (REAR WALL) WALKWAY LIGHTING CIRCUIT — 20A/120V — PHOTOCELL + TIMER EF 174'-0" N ELECTRICAL LEGEND DUPLEX OUTLET 120V/20A GFCI OUTLET (BATH/WET) SINGLE-POLE SWITCH RECESSED LED DOWNLIGHT SURFACE LED FIXTURE EXTERIOR WALL PACK (LED) SMOKE + CO DETECTOR (HARDWIRED + BATT) VRF OUTDOOR — SINGLE 240V/60A DISCONNECT VRF OUTDOOR UNIT — 18 TON (EQUIP ROOM PAD) 120V CIRCUIT 240V CIRCUIT LIGHTING CIRCUIT EF BATH EXHAUST FAN (50 CFM) DISTRIBUTION PANEL PANEL SCHEDULE — 200A MAIN / 120/240V / 1-PHASE / 42-SPACE CKT 1-12: ROOM GENERAL (120V/20A) — 12/2 NM-B — 1 PER ROOM CKT 13-24: ROOM BATH GFCI (120V/20A) — 12/2 NM-B — 1 PER ROOM CKT 25: VRF OUTDOOR UNIT (240V/60A 2P) — 6/3 — SINGLE CIRCUIT + CKT 26-36 SPARE CKT 37: WALKWAY LIGHTING (120V/20A) — PHOTOCELL + TIMER CKT 38: EXTERIOR SIGNAGE + SECURITY LIGHTING (120V/20A) CKT 39-40: EQUIP ROOM / CKT 67: WASHER 240V/30A / CKT 68: LAUNDRY 120V TOTAL: 27 CIRCUITS + 26 SHUTTERS + 2 LAUNDRY + 1 VRF = 56 CIRCUITS / 60-SPACE PANEL (11 SPARE) | ALL HOME-RUN TO PANEL

POWER DISTRIBUTION

  • Main panel: 200A, 42-space, 120/240V single-phase in equip room
  • Source: solar inverter/battery system (hybrid inverter)
  • Backup: 20 kW LP generator with automatic transfer switch
  • ATS: 200A rated, exercises weekly, 10-sec transfer delay
  • All room circuits home-run to main panel (no sub-panels)
  • Wiring: 12/2 NM-B (Romex) in EMT conduit along rear wall
  • Per room: (2) dedicated circuits — general 120V, bath GFCI 120V
  • VRF: single 240V/60A to outdoor unit + 2-wire comm to each head
  • GFCI protection: all bathroom outlets, within 6' of water
  • AFCI protection: all bedroom outlets per 2018 NEC 210.12
  • UFER ground: 20' min #4 bare copper in foundation per NEC 250.52
  • Grounding: equipment ground bus + supplemental ground rods

LIGHTING + LIFE SAFETY

  • Room lighting: (2) recessed LED downlights, 3000K, dimmer switch
  • Bathroom lighting: (1) recessed LED,?"wet-rated, switched
  • Walkway: LED wall packs at each bay, photocell + timer control
  • Equipment room: (2) LED surface fixtures, switched
  • Exterior: building-mounted wall packs at each endwall
  • Smoke + CO detector: hardwired with battery backup, each room
  • Interconnected detection: all detectors on common signal circuit
  • Bathroom exhaust: 50 CFM fan, humidity sensor or switch
  • Exit signs: illuminated at each end of walkway (battery backup)
  • Emergency egress lighting at walkway (battery-integral)
  • All lighting LED — reduced off-grid electrical load

SOLAR + BATTERY SYSTEM

  • Solar array: 30+ kW, roof-mounted, south-facing 3:12 pitch
  • Panels: monocrystalline, 400W+ per panel (~75 panels)
  • Mounting: S-5! clamp rail system on standing seam (no penetrations)
  • Inverter: hybrid inverter system (Sol-Ark, Outback, or equiv.)
  • Battery: 100+ kWh lithium-ion (e.g., EG4, SimpliPhi, Fortress)
  • Battery bank located in equipment room on ventilated rack
  • Charge controllers: MPPT, sized to array
  • Generator: 20 kW LP propane, auto-start at low battery SOC
  • LP tank: 500+ gallon, exterior, per NFPA 58 setback
  • Monitoring: web-enabled system monitoring (Victron, Sol-Ark)
  • Rapid shutdown per NEC 690.12 (module-level or at array)
  • DC disconnect and AC disconnect per NEC 690