Trane TCONT102 Thermostat Operation Manual

The Trane TCONT102 (XR102) is a non-programmable 1H/1C digital thermostat for residential heating and cooling systems. It features a 2-inch digital display, simultaneous heating/cooling setpoint storage, and compatibility with Trane systems like TAM7/TAM9, GAF2-S, and S9V2 furnaces. It supports temperature display adjustment (±3°F), °F/°C convertibility, low battery indicator, and a 5-minute compressor cycle-off delay. Below are the key specifications and operation instructions.

1. Key Specifications 2. Operation Instructions 2.1. Initial Setup 2.2. Home Screen Navigation 2.3. Operating Modes 2.4. Settings Screen 2.5. Advanced Features 2.6. Troubleshooting 3. Installation Instructions 3.1. Pre-Installation 3.2. Wiring Diagrams 3.3. Configuration Options 4. Calculation Tool

Key Specifications

Type: Non-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, Heat/Cool Package, TEM6 VS Gas Furnace, GAT2/GAM2/TEM3,4
Power:
- DC: Two 1.5V AAA alkaline batteries
- AC: 20-30 VAC, 50/60 Hz, NEC Class II
- Wire: 18 AWG
Temperature Range:
- Cooling Setpoint: 45°F to 90°F (1°F resolution)
- Heating Setpoint: 45°F to 90°F (1°F resolution)
- Display: 4°F to 99°F (1°F resolution)
Operating Conditions: 32°F to 105°F (0°C to 41°C) / 90% RH non-condensing
Dimensions: 3-7/8” x 5-1/2” x 1-3/16” (HxWxD)
Features:
- 2-inch digital display; backlit option
- Compressor min cycle off: 5 min
- No auxiliary heat support
- Terminal load: 1.0A/terminal, 1.5A max combined
Compliance: ENERGY STAR; UL listed

Operation Instructions

Initial Setup

1. Install Batteries: Pull thermostat from wallplate; insert two AAA alkaline batteries (observe polarity). Snap back on. Remove battery tag if present.
2. Set System Mode: SYSTEM switch to Heat/Cool/Off.
3. Adjust Temperature: Up/Down arrows for setpoint.
4. Configure Display: See Settings for °F/°C, adjustment, backlight.

Home Screen Navigation

1. Display: Room temperature (default); press setpoint for "Set" view.
2. Controls: Up/Down arrows for adjustments; SYSTEM for modes; FAN for Auto/On.
3. Indicators: Low battery ("Change Bat"), compressor lockout (flashing snowflake), mode icons.

Operating Modes

1. Heat: SYSTEM to Heat; raise setpoint; flame icon.
2. Cool: SYSTEM to Cool; lower setpoint; snowflake icon (non-flashing).
3. Off: SYSTEM to Off; no icons.
4. Fan: Auto (with system) or On (continuous).

Settings Screen

1. °F/°C Convert: SYSTEM to Off; clip W904 jumper on circuit board for °C.
2. Temperature Adjustment: SYSTEM to Off; press Up/Down simultaneously 2s; adjust ±3°F with arrows; move SYSTEM switch to exit.
3. Backlight: SYSTEM to Heat; press Up/Down simultaneously 2s ("-L FF"); Up/Down for ON; SYSTEM to Off to exit.
4. Hydronic Adjustment: Clip W905 jumper for longer heating cycles.
5. Reset: SYSTEM to Off; press Up/Down simultaneously while switching to Heat.

Advanced Features

1. Compressor Protection: 5-min off delay; flashing snowflake during lockout.
2. Battery Life: Replace annually or when "Change Bat" appears.
3. Electric/Gas Switch: Gas for gas/electric; Electric for electric heat.

Troubleshooting

Display Off: Check fuse/breaker, furnace switch, door panel.
No Heat: Re-light pilot; verify mode/setpoint; check connections.
No Cool: Verify mode/setpoint; 5-min delay; service cooling system.
Constant Run: Check shorts; set Fan to Auto; reset thermostat.
Cycles Too Fast/Slow: Digital nature; clip W905 for hydronic.
Temp Discrepancy: Adjust display (±3°F).
Erratic: Reset (Up/Down + SYSTEM Off to Heat).

Installation Instructions

Warning: Professional installation. Disconnect power.

Pre-Installation

Location: 5 ft floor, central, good circulation; avoid drafts/sun/heat.
Tools: Screwdriver, level, drill.
Mercury: Dispose properly (www.thermostat-recycle.org).

Wiring Diagrams

Terminal Designations:

Terminal	Description
R/RH (4-M-R5)	24V Power (Heating)
R/RC-V	24V Power (Cooling)
W/H-4	Heating Relay
G-F	Fan Relay
Y-Y6	Cooling Relay
O	Reversing Valve (Cool mode, HP only)
B	Reversing Valve (Heat mode, HP only)

Notes: Wire condensate switches between Y and Y1. X2 for aux during defrost. Remove jumper for 2-transformer RC/RH. Add for HP. Clip W905 for hydronic.

Configuration Options

Mount base level; connect wires.
Install batteries; snap cover.
Clip jumpers: W904 for °C; W905 for hydronic.
Test: Verify modes/setpoints.

Calculation Tool

Estimate monthly energy savings from compressor delay (assumes 0.3 kWh saved per 5-min delay; 30 days/month).