Trane XR202 Thermostat Operation Manual

The Trane XR202 (TCONT202) is a programmable push-button single-stage thermostat with a 3.5-inch backlit display for heat/cool systems up to 1H/1C. It supports 7-day, 5-1-1 scheduling, temporary overrides, early start, filter reminders, and keypad lock. Below are the key specifications and operation instructions.

Key Specifications

• Power: Two 1.5V AA alkaline batteries (DC); 20-30 VAC, 50/60 Hz (AC)
• Operating Conditions: 32°F to 105°F (0°C to 41°C); 90% RH non-condensing
• Storage Conditions: -20°F to 150°F (-29°C to 65°C)
• Setpoint Ranges:
  • Cooling: 45°F to 99°F
  • Heating: 45°F to 99°F
• Temperature Range (Display): 32°F to 99°F
• Dimensions: 3-3/4” x 6” x 1-1/8” (H x W x D)
• Compatibility: Single-stage heat/cool, heat pump (1H/1C); gas/oil/electric systems
• Features:
  • 3.5-inch backlit LCD; 7-day/5-1-1/non-programmable scheduling; Compressor lockout (5 min)
  • Early start; Keypad lock; Filter reminder; Cycle rates (Fast/Medium/Slow)
  • Auto changeover; Continuous display light (with C-wire)
• Compliance: National/state/local codes

Operation Instructions

Initial Setup

1. Install Batteries: Insert 2 AA alkaline batteries; remove tag.
2. Set Time/Date: Press Set Time; adjust hour/minutes/day with arrows; press Exit.
3. Set Mode/Fan: System switch: Heat/Cool/Off; Fan: Auto/On.
4. Schedule Type: User Menu > 01: Select 7-day, 5-1-1, or non-programmable.

Home Screen Navigation

1. Display: Time, room temp, setpoint, day, battery, status icons.
2. Controls: Arrows for setpoint/override; Hold for permanent; Menu for options; Backlight button.
3. Indicators: Heat On/Cool On; Hold; Lock; Low battery; Filter reminder.

Operating Modes

1. Heat: System to Heat; setpoint above room; activates after delay.
2. Cool: System to Cool; setpoint below room; compressor after 5-min lockout.
3. Off: No operation.
4. Auto: Changeover supported.
5. Fan: Auto (with calls) or On (continuous).

Settings Screen

1. Access: Press Menu > Settings.
2. Options: Schedule type, early start, °F/°C, temp adjustment (±5°F), display light, filter reminder (1-12 months).
3. Schedule Edit: In Heat/Cool, Menu > Next; adjust periods P1-P4 for days.
4. Installer Menu: Hold Menu 8s for cycle rates, lockout, limits.

Advanced Features

1. Scheduling: 4 periods/day; 7-day or 5-1-1; factory defaults provided.
2. Overrides: Temporary (2+ hrs), permanent Hold.
3. Early Start: Pre-heats/cools to reach setpoint on time.
4. Keypad Lock: Hold up arrow + Menu.
5. Compressor Protection: 5-min off timer.

Troubleshooting

• Blank Display: Replace batteries; reset by removing 2 min.
  
• No Heat/Cool: Check fuse/breaker, mode/setpoint, delays; diagnostic tests.
  
• Constant Running: Check shorts; reset.
  
• Cycling Issues: Adjust cycle rates in Installer Menu.
  
• Temp Disagree: Adjust display (±5°F).
  
• Call for Service: System not reaching setpoint; check basics.
  
• Persistent: Contact Trane service.

Installation Instructions

Warning: Qualified personnel only. Disconnect power. Follow lockout/tagout.

Pre-Installation

• Location: Central, 5 ft above floor; avoid drafts/sun/heat.
  
• Tools: Screwdriver, level, wire strippers.
  
• Wire: 18 AWG.

Wiring Diagrams

Terminal Designations:

Terminal	Description
RC	24V Hot (Cooling)
RH	24V Hot (Heating)
W	Heat Stage 1
Y	Compressor Stage 1
G	Fan
O/B	Reversing Valve
C	Common

Notes: Factory jumper RC/RH (clip if separate); Gas/Electric switch; O/B to O (default) or B. Jumper Y-W for heat pump. Specific diagrams for various Trane systems.

Configuration Options

1. Mount sub-base; connect wires per diagram.
   
2. Power up; set time/day.
   
3. Installer Menu: Cycle rates, lockout, limits, etc.
   
4. Test fan/heat/cool.
   
5. Set user schedule.

Calculation Tool

Estimate monthly energy savings from scheduling (assumes 3°F setback saving 0.15 kWh per hour unoccupied; 30 days/month).