Trane TCONT202 Thermostat Operation Manual

The Trane TCONT202 (XR202) is a programmable 1H/1C digital thermostat for residential heating and cooling systems. It features a 3.5-inch backlit display, 7-day/5-1-1/non-programmable scheduling, early start option, and compatibility with Trane systems like TAM7/TAM9, GAF2-S, and S9V2 furnaces. It supports compressor lockout (5-min delay), cycle rate adjustments, air filter reminder, keypad lock, and °F/°C selection. Below are the key specifications and operation instructions.

Key Specifications

• Type: Programmable 1H/1C digital thermostat
• Compatibility:
  • Gas/Oil/Electric (mV/24V), Heat Only, Cool Only, Heat/Cool systems: 1/1 stages
  • Systems: TAM7/TAM9 (24V Mode), GAF2-S, S9V2 Furnace, Heat/Cool Package with Variable Speed Blower, TEM6 VS Gas Furnace, GAT2/GAM2/TEM3,4
• Power:
  • DC: Two 1.5V AA alkaline batteries
  • AC: 20-30 VAC, 50/60 Hz, NEC Class II (C-wire optional)
  • Wire: 18 AWG
• Temperature Range:
  • Cooling Setpoint: 45°F to 99°F (1°F resolution)
  • Heating Setpoint: 45°F to 99°F (1°F resolution)
  • Display: 32°F to 99°F (1°F resolution); Adjustable ±5°F
• Operating Conditions: 32°F to 105°F (0°C to 41°C) / 90% RH non-condensing
• Dimensions: 3-3/4” x 6” x 1-1/8” (HxWxD)
• Features:
  • 3.5-inch backlit digital display
  • 7-day/5-1-1/non-programmable scheduling; Early start
  • Compressor lockout: 5 min; Cycle rates: Fast/Med/Slow
  • Air filter reminder; Keypad lock; Continuous backlight (C-wire)
  • Terminal load: 1.0A/terminal, 1.5A max combined
• Compliance: National, state, and local codes; No mercury

Operation Instructions

Initial Setup

1. Install Batteries: Remove thermostat from sub-base; insert two AA alkaline batteries (observe polarity). Snap back on. Remove battery tag.
2. Set Time/Day: Press Set Time; adjust hour/minutes/day with arrows and Next; press Exit.
3. Set Schedule Type: Via User Menu item 01 (7-day/5-1-1/non-programmable).
4. Configure: See Settings for °F/°C, adjustment, backlight.

Home Screen Navigation

1. Display: Room temperature, setpoint, time, day, mode icons, battery status, alerts.
2. Controls: Up/Down arrows for adjustments; System switch (Heat/Cool/Off); Fan (Auto/On); Menu for settings; Hold/Run for overrides.
3. Indicators: Low battery, "Heat On"/"Cool On", "Starting Soon" (lockout), "Call for Service".

Operating Modes

1. Heat: System to Heat; raise setpoint; "Heat On" after delay.
2. Cool: System to Cool; lower setpoint; "Cool On" after 5-min delay.
3. Off: System to Off; no operation.
4. Fan: Auto (with system) or On (continuous).
5. Overrides: Temporary (arrows, reverts in 2 hrs); Permanent Hold (Hold button).

Settings Screen

1. User Menu: Press Menu > Settings; adjust schedule type, early start, °F/°C, temp adj (±5°F), backlight, filter reminder.
2. Installer Menu: Hold Menu 8s; set cycle rates, lockout, limits, etc.
3. Keypad Lock: Hold Up + Menu; unlock after 3s.
4. Reset: Hold Menu + Backlight for schedule reset; remove batteries 2 min for full.

Advanced Features

1. Programming: Menu > Schedule; set times/temps for P1-P4 periods per day/mode.
2. Battery Life: Replace annually or on low indicator; preserves clock with C-wire.
3. Early Start: Menu option to reach setpoint by program time.
4. Filter Reminder: Set 1-12 months; "Change Filter" displays.

Troubleshooting

• Display Off: Check power, batteries, C-wire; reset.
  
• No Heat: Verify mode/setpoint, connections, furnace switch; test with 1°F raise.
  
• No Cool: Verify mode/setpoint, 5-min delay; outdoor >55°F; test with 1°F lower.
  
• Constant Run: Check shorts, fan to Auto; reset.
  
• Cycles Too Fast/Slow: Adjust cycle rate in Installer Menu.
  
• Temp Discrepancy: Adjust display (±5°F).
  
• "Call for Service": Check operation; replace if unresponsive.

Installation Instructions

Warning: Professional installation. Disconnect power.

Pre-Installation

• Location: 5 ft floor, central, good circulation; avoid drafts/sun/heat.
  
• Tools: Screwdriver, level, drill.
  
• Record old wiring; dispose mercury thermostat properly.

Wiring Diagrams

Terminal Designations:

Terminal	Description
Rc/Rh	24V Power (jumpered; clip if separate)
W	Heating Relay
G	Fan Relay
Y	Cooling/Compressor Relay
O/B	Reversing Valve (Heat Pump)
C	Common (optional for backlight)

Notes: GAS/ELEC switch for system type; O/B for changeover (O default). Jumper Y-W for single-stage HP. Wire condensate switches between Y and Y1. See diagrams for specific systems (e.g., TAM7/TAM9, S9V2).

Configuration Options

1. Mount sub-base level; connect wires per diagram.
   
2. Set GAS/ELEC and O/B switches; install jumpers as needed.
   
3. Snap thermostat on; remove battery tag.
   
4. Access Installer Menu: Configure cycle rates, lockout, schedule, etc.
   
5. Test: Fan, heat (1°F raise), cool (1°F lower, >55°F outdoor).

Calculation Tool

Estimate monthly energy savings from 5-1-1 scheduling (assumes 8°F setback saving 0.2 kWh per hour unoccupied; 30 days/month).