Trane TCONT602AF22MA Thermostat Operation Manual

The Trane TCONT602AF22MA is a programmable comfort control thermostat for 24 VAC single- and multi-stage heating and cooling systems, including gas, oil, electric heat, and heat pumps. It supports manual or auto changeover and requires a common wire for power. Features include a large backlit LCD display, keypad controls for modes, fan, and energy savings, with filter reminders and outdoor temperature calibration. Below are the key specifications and operation instructions.

Key Specifications

• Type: Programmable comfort control for 24 VAC systems
• Compatibility:
  • Single/multi-stage heating/cooling (up to 2H/2C), gas/oil/electric, heat pumps
  • Manual/auto changeover; fan control
• Power:
  • 24 VAC with common wire (B terminal); optional AA batteries for backup
• Temperature Range: Setpoints configurable; outdoor calibration +5 to -5°F
• Dimensions: 3-9/16” H x 5-13/16” W x 1-1/2” D
• Features:
  • Large backlit LCD; keypad for modes (Heat/Em Heat/Cool/Auto/Off), fan (Auto/On)
  • Filter reminder (flashing "FILTER/OD"); energy savings mode
  • Outdoor temp display; setpoint deadband
• Compliance: UL listed; 5-year limited warranty

Operation Instructions

Initial Setup

1. Power On: Connect to system; display shows room temp.
2. User Setup: Hold MODE + FAN; navigate with MODE (forward)/FAN (back); set filter timer, clock, deadband.
3. Calibrate Outdoor: Adjust +5 to -5°F.
4. Set Mode: MODE for Heat/Em Heat/Cool/Auto/Off.
5. Set Fan: FAN for Auto/Continuous.

Home Screen Navigation

1. Display: Current mode with border; "FAN ON" for continuous; "FILTER/OD" flashing; energized equipment indicator.
2. Controls: MODE for modes; FAN for fan; FILTER/OD for outdoor/reminder; Energy Savings for adjustments.
3. Outdoor Temp: Press FILTER/OD to view.
4. Filter Reminder: Press FILTER/OD twice for days remaining.

Scheduling and Presets

1. Energy Savings: Press Energy Savings; shifts setpoints for efficiency.
2. Filter Reminder: Preset days; reset via FILTER/OD.
3. Auto Changeover: In Auto, presets switch per deadband.

Settings Screen

1. Access: Hold MODE + FAN for User Setup; MODE/FAN to navigate.
2. Options: Filter timer (days/reset); Outdoor calibration (±5°F); Deadband (degrees); Clock.
3. Changes: Immediate; Done to save.

Advanced Features

1. Emergency Heat: MODE to Em Heat; bypasses compressor.
2. Fan Continuous: FAN to Continuous; "FAN ON" displays.
3. Energy Savings: Adjusts setpoints for reduced use.
4. Auto Changeover: MODE to Auto; switches per deadband.

Troubleshooting

• Display Off: Check breaker, power switch, C-wire.
  
• No Heat/Cool: Verify mode/setpoint; "Wait" for delay.
  
• Filter/OD Flashing: Reset timer.
  
• Erratic: Cycle power.

Installation Instructions

Warning: Professional only. Disconnect power.

Pre-Installation

• Verify package: Thermostat, wallplate, screws/anchors, batteries.
  
• Tools: Phillips screwdriver, drill (3/16” bit), level.
  
• Turn off power; remove old thermostat, label wires.

Wiring Diagrams

1H/1C (1 transformer):

Terminal	Connection
R	Power
W	Heat
Y	Cool
G	Fan
B	Common

2H/2C (1 transformer):

Terminal	Connection
R	Power
W1	Heat 1
W2	Heat 2
Y1	Cool 1
Y2	Cool 2
G	Fan
B	Common

Notes: Remove jumper for 2 transformers; connect B for common.

Configuration Options

1. Hold MODE + FAN for User Setup.
   
2. Set filter timer, outdoor calibration, deadband, clock.
   
3. Apply; contact dealer for advanced.

Calculation Tool

Estimate monthly energy savings from energy savings mode (assumes 2°F shift, 0.5 kWh/hr saved; 30 days/month).