Trane Pivot BAYSTAT814 Series Thermostat Operation Manual

The Trane Pivot BAYSTAT814 Series is a programmable smart thermostat with a color touch-screen and intuitive user interface for easy operation. It features built-in remote access capability, allowing users to control it via mobile devices (iOS or Android). The thermostat supports configurations for heat/cool, dual fuel, heat only, cooling only, and heat pump systems. It uses proprietary PI control schemes for comfort and energy efficiency. Below are the key specifications and operation instructions.

Key Specifications

• Type: Smart programmable thermostat with 4.3-inch diagonal color touch-screen
• Compatibility:
  • Trane Reliatel 1- or 2-stage constant volume/heat pump rooftop units, generic constant volume/heat pump units
  • Systems with non-variable speed blowers; variable speed Trane residential equipment
  • Economizers, dehumidifiers, humidifiers, occupancy signals; mobile app integration
• Power:
  • 24 Vac between R and C terminals
• Temperature Range: Auxiliary heat lockout 32°F to 70°F; compressor heat lockout 5°F to 70°F
• Dimensions: Display: 4.15" x 2.65"; sub-base with mounting holes
• Features:
  • Five system modes (Heating, Cooling, Off, Emergency Heating, Auto); two fan modes (Auto, On)
  • Scheduling with recovery; dual fuel operations; dehumidification; humidifier control
  • Optimal start/stop; warm air discharge; smart continuous fan; airflow reduction
  • RH control and frost control; service reminders; diagnostics with alerts; PIN access
  • Demand response (OADR); onboard humidity sensor
• Compliance: FCC Part 15 (FCC ID: XVR-CONT8245); IC regulations; UL listed

Operation Instructions

Initial Setup

1. Power-Up: Sequence lasts 90–120 seconds; screen calibration available for 5 seconds (or 5 minutes post-reset).
2. Connect Network: Wi-Fi (within 30 ft of router) or Ethernet; register for remote access via app.
3. Installer Setup: Home > Menu > Service > Technician Access (5s) > Proceed > Service Menu; configure system type, sensors, accessories.
4. Demand Response: Home > Menu > System Info > Demand Response registration.

Home Screen Navigation

1. Display: Indoor temperature, RH, setpoints, system status, widgets (e.g., occupancy).
2. Touch Controls: Mode, fan, schedule; energized terminals in green on system report.
3. Menu: Access settings, service, diagnostics.

Scheduling and Presets

1. Scheduling: Occupied/unoccupied modes; fan continuous in occupied On, auto in unoccupied.
2. Periods: Up to multiple periods/day with recovery to reach setpoints by start.
3. Presets: Heating/cooling setpoints, RH targets; optimal recovery based on outdoor temp.

Settings Screen

1. Installer Setup Groups: Group 1: Equipment type, changeover (auto/manual, 2°F deadband).
2. Group 2: Staging (1–2 stages, airflow %).
3. Group 3: Sensors (Internet weather/ODT, remote, binary inputs).
4. Group 4: Accessories (filtration, humidifier on Aux1/Aux2, dehumidifier).
5. Group 5: Comfort (RH targets, continuous fan).
6. Group 6: Staging details (airflow %).
7. Group 7: Lockouts (aux/compressor OAT-based).
8. Reminders: Filters, UV, etc.

Advanced Features

1. Humidifier: RH control below heating target; frost control offsets based on OAT.
2. Optimal Start/Stop: Calculates start using outdoor temp; stop preempts unoccupied.
3. Dehumidification: During cooling; reduces airflow 30% if RH > target (Trane variable speed).
4. Dual Fuel: Locks compressor below OAT, switches to aux; balance point.
5. OADR: Demand response for peak days.

Troubleshooting

• Display Issues: Alert code (check Diagnostics); power loss (R-C); cycle power.
  
• Heating/Cooling: Mode Off/EM; setpoint not met; lockouts; sensor faults.
  
• Fan: Mode mismatch; continuous setting.
  
• Wi-Fi: Signal strength; app errors—contact support (833-222-3201).
  
• Alerts: View history (last 30 days); select for causes.
  
• PIN: Enter code or contact owner.

Installation Instructions

Warning: Qualified personnel only; hazards in HVAC equipment risk death/injury. Follow precautions; non-Trane personnel comply with local regs. Separate sensor wires from high-voltage.

Pre-Installation

• Location: Central, good circulation; avoid radiant sources; strong Wi-Fi (30 ft max, ≤3 walls) or Ethernet.
  
• Contents: Thermostat, sub-base, screws/anchors, guide, RJ-45 holder.
  
• Tools: Drill, screwdriver.

Wiring Diagrams

For Trane Reliatel 1/2-stage constant volume (non-variable blower):

Terminal	Connection
R	24V Power
C	Common
G	Fan
Y1/Y2	Cool Stages
W1/W2	Heat Stages
O/B	Changeover (HP)
AUX1/AUX2	Accessories (Humidifier/Dehum)
ODT	Outdoor Temp Sensor
RS1	Binary Input (Occupancy)

Note: Up to 2 stages; for economizer, Aux1 as ventilation (60 min/hour); full diagrams in manual.

Configuration Options

1. Mount sub-base level; connect wires, snap face.
   
2. Power up; access Installer Setup (Home > Menu > Service > Technician Access).
   
3. Set groups: System (type/changeover), staging (airflow %), sensors (ODT/remote), accessories (humidifier/dehum), comfort (RH/fan), lockouts (OAT).
   
4. Set contractor info; calibrate screen; test modes.

Calculation Tool

Estimate monthly energy savings from optimal start/stop and duty cycles (assumes 0.3 kWh per °F per hour; 30 days/month).