Trane TCONT802AS32DAA Thermostat Operation Manual

The Trane TCONT802AS32DAA (TCONT802AS32DA) is a touch screen programmable thermostat for 24 Vac heating and cooling systems. It features a large touch screen display, menu-driven programming, Adaptive Intelligent Recovery, support for 1-2 stage heat/cool and heat pump systems, remote sensor compatibility, and fan circulation mode. It supports automatic/manual changeover, compressor protection, and customizable cycles per hour. Below are the key specifications and operation instructions.

Key Specifications

• Type: Touch screen programmable thermostat for 24 Vac systems
• Compatibility:
  • Conventional: 1-2 stage heat/cool with furnace or air handler
  • Heat Pump: 1-2 stage with supplemental heat
  • Systems: Variable speed air handlers, furnaces; remote indoor/outdoor sensors
• Power:
  • AC: 24 Vac with common wire (B terminal)
  • Memory: Retains time/day up to 10 years
• Temperature Range:
  • Setpoints: Configurable with 3°F minimum deadband
  • Display: Current temperature, setpoints
• Operating Conditions: Standard indoor residential use
• Dimensions: Not specified
• Features:
  • Large touch screen display; Menu-driven programming
  • Adaptive Intelligent Recovery; Cycles per hour (1-12)
  • Fan: On/Auto/Circ; Changeover: Auto/Manual
  • Compressor lockout (5-35°F); No humidity control
• Compliance: U.S. Pat. No. 6595430, D509151; Local codes

Operation Instructions

Initial Setup

1. Power On: Ensure 24 Vac common connected; display activates.
2. Set Calendar: Access Installer Setup to set time and day for memory retention.
3. Configure System: Use Installer Setup Menu to match heating/cooling system type and stages.
4. Set Defaults: System to Heat, Fan to Auto.

Home Screen Navigation

1. Display: Current temperature, system status (Heat/Off/Cool/Auto/Em. Heat), fan status (On/Auto/Circ), setpoints.
2. Controls: Touch screen for mode selection, temperature adjustments; menu for programming.
3. Indicators: System on status, temperature limits.

Operating Modes

1. Heat: Select Heat; adjust setpoint up; activates heating after delay.
2. Cool: Select Cool; adjust setpoint down; activates cooling after lockout.
3. Off: Select Off; no heating/cooling.
4. Auto: Automatic changeover with 3°F deadband.
5. Em. Heat: For heat pumps; bypasses compressor.
6. Fan: On (continuous), Auto (with system), Circ (periodic circulation).

Settings Screen

1. Access Menu: Press and hold blank keys for Installer Setup; navigate options.
2. Cycles per Hour: Set 1-12 for heat/cool stages.
3. Deadband: 2-9°F between setpoints (default 3°F).
4. Changeover: Auto or Manual.
5. Reset: Power cycle or reconfigure menu.

Advanced Features

1. Adaptive Recovery: Starts system early to reach setpoint by program time.
2. Sensor Selection: Indoor or outdoor remote sensor; stabilizes in 5 min.
3. Compressor Lockout: 5-35°F below balance point.
4. Programming: Menu-driven with multiple day selection.

Troubleshooting

• Display Off: Check 24 Vac between B and Rc; verify power.
  
• Setpoints Not Changing: Check upper/lower limits; ensure not locked.
  
• No Heat/Cool: Verify system mode, fan setting, 24 Vac; check continuous display updates.
  
• No Air Flow: Confirm fan mode and equipment.
  
• Erratic Behavior: Power cycle; dispose old mercury properly if replacing.

Installation Instructions

Warning: Professional installation by trained personnel. Disconnect power.

Pre-Installation

• Location: 5 ft above floor, good circulation, avoid drafts/sun/heat sources.
  
• Tools: Screwdriver, wire strippers, level.
  
• Mercury: Dispose old controls properly via local waste management.

Wiring Diagrams

Terminal Designations (varies by system):

Terminal	Description
R/Rc	24V Power
B	Common (24 Vac)
W1/W2	Heat Stages/Aux
Y1/Y2	Cool/Compressor Stages
G	Fan
O/B	Reversing Valve (Heat Pump)
E	Emergency Heat

Notes: Separate cable for outdoor sensor. Factory jumper on X2/B. See diagrams for conventional/heat pump, single/multi-stage. Tighten screws; push wires into wall.

Configuration Options

1. Mount wallplate level; connect wires per system diagram.
   
2. Align and snap thermostat onto wallplate.
   
3. Access Installer Setup: Select system type, stages, fan, recovery, deadband, sensor.
   
4. Perform System Test: Verify heat/cool stages, fan, em. heat (bypasses lockout).
   
5. Set calendar and program schedule.

Calculation Tool

Estimate monthly energy savings from Adaptive Intelligent Recovery (assumes 0.15 kWh saved per recovery cycle; 30 days/month).