Trane TCONT724AS42DA Thermostat Manual Explain about Spesification, Feature and Function, Installatiom, and Troubleshooting when trane thermostat blank screen, trane thermostat blank screen no batteries. The Trane TCONT724AS42DA Touch Screen Comfort Controls provide electronic control of 24 Vac heating and cooling systems. See Table 1 for a general description.
Trane XR724 Touchscreen Comfort Control Model TCONT724AS42DA User Guide and Installation Instructions
Trane XR724 Features
The Trane XR724 is a high-efficiency air conditioner that features a number of advanced technologies and design elements to provide superior performance and comfort. Some of the key features of this unit include:
- Two-stage compressor: The unit features a two-stage compressor that allows it to operate at a lower, more efficient setting for most of the time, and then switch to a higher setting when the cooling demand is greater.
- ComfortLink II communicating technology: The unit uses ComfortLink II technology to communicate with other components of the heating and cooling system, such as the thermostat, to optimize performance and ensure maximum comfort.
- Variable-speed fan motor: The unit features a variable-speed fan motor that can adjust the air flow to match the cooling demand, resulting in better humidity control and improved indoor air quality.
- Durable construction: The unit is built with a galvanized steel cabinet and a corrosion-resistant base pan to ensure long-lasting durability and reliability.
- Energy Star Rated: The unit is Energy Star rated and meets or exceeds the guidelines set by the U.S. Environmental Protection Agency (EPA) and the Department of Energy (DOE) for energy efficiency.
- Advanced filter options: The unit offers advanced filter options such as MERV8 and MERV11 filters which can capture small particles such as dust, pollen and pet dander to improve indoor air quality.
- 10-year limited warranty on the compressor and outdoor coil, and 2-year limited warranty on covered components.
For more detailed features include:
- WiFi comfort control
- Remote access via smartphone, tablet, or P.C. (requires a Trane ® Home account)
- Interactive 4.3” black & white touchscreen
- 7 Day programmable, 4 schedules/day
- Built in humidity sensor with RH display
- Filter, maintenance, humidifier service reminders
- Remote temperature sensing option (1 indoor/1 outdoor)
- Auxiliary & compressor heat lockouts
- Dehumidification (over cooling)
- Enhanced dehumidification (cooling)
- Adjustable variable speed fan settings (pwm)
- Energy Savings Mode (ESM)
- Screen lock
- Upgradable firmware (requires a Trane Home account)
- Service test modes
- Humidifier control
Trane XR724 Product Specifications
| Specification | Description |
| Product Model: | TCONT724AS42DA |
| Product: | XR724 HVAC System comfort control. WiFi communications enabled. |
| Size: | 5.75” wide x 3.5” height x 1” depth |
| Display: | Fixed Segment LCD, 4” x 2.25”, with 17 character alpha numeric display |
| Touchscreen: | Yes |
| Backlight: | Yes, White, Controllable, on, off, timeout |
| Power: | 24VAC from HVAC System |
| HVAC System Type: | Standard (gas/electric), Heat Pump, or Dual Fuel |
| Heat/Cool Stages: | Up to four stages of heat/two stages cool |
| PWM Output (BK) | Variable speed motor control |
| Heat Pump Switchover valve: | Selectable change over with cool or with heat |
| Auxiliary Contact | Humidifier, Ventilation or Dehumidifier control |
| Communications: | WiFi |
| Memory: | Non-volatile |
| Date/Time: | 12 hour super capacitor backup Time is automatically updated if the control is connected to Trane Home |
Trane XR724 Operation
The XR724 Comfort Control provides typical operation of a forced air heating and cooling HVAC system. It also features WiFi capability for remote control and Trane Home connectivity.
| Item | Description | Notes |
| Clock Display | The current time is displayed in the upper left corner of the main screen. The time will blink when the clock has not been set. | See TIME/DATE for more information. If the control is connected to Trane Home, the clock will be updated by the Trane Home portal. |
| Dynamic Labels and Function Control Buttons | The buttons are defined by the dynamic labels in each button. As you navigate through menus, the labels for the buttons will change. | |
| Setpoint Display and Setpoint Up/Down Buttons | The current heat or cool setpoint is displayed. These setpoints may be set using Trane Home, the Control’s internal schedule, or by pressing the Setpoint Up/ Down buttons. Pressing the setpoint button changes the setpoint screen. The current mode is displayed at the top of the screen. Adjust the setpoint by pressing the up or down arrows. To change setpoint mode press the MODE button. |
The setpoints will push each other if they are adjusted to within the minimum heat/cool separation setting. This is normally 3 degrees. |
| Temperature Display | The Comfort Control displays the current temperature as sensed by the internal temperature sensor. | The internal temperature sensor can be adjusted as necessary. |
| Menu Button | Button used to access other Comfort Control menus | |
| System Mode Button | Button used to change the system mode. |
Off: System off Heating: Heating only Cooling: Cooling only Auto: Heating/Cooling as necessary EM Heat: Heat Pump Emergency Heat, Compressor Disabled, Indoor Heat only. |
| Fan Mode Button | Button used to change the fan mode |
Auto: Fan on when cooling/heating is necessary On: Fan constantly on Circ: Fan on for a user-selected number of minutes per hour |
| Schedule Mode Button |
Button used to change the schedule mode The default mode is HOLD which disables scheduling. |
Hold: System maintains the current temperature setpoints. Schedules are disregarded. Run: Run the system schedule Energy Saving Mode (ESM): Run schedule using the ESM Setpoints. Manual setpoint changes while in Run Schedule mode will only last until the next schedule period. |
Trane XR724 Troubleshooting
Trane XR724 is a high-efficiency air conditioner. Some common issues with this unit include:
- Unit not turning on: check to ensure that the thermostat is set correctly and that the circuit breaker or fuse has not tripped.
- Unit not cooling: check the air filter to ensure it is clean, and that all air vents are open and not blocked.
- Unit making strange noises: check for loose or worn parts, such as belts or bearings, and contact a professional for service if necessary.
- Unit not heating: check to ensure that the thermostat is set to the "heat" setting, and that the pilot light or electronic ignition is working properly.
- Unit freezing up: check to ensure that the air filter is clean, and that the condensate drain is clear.
If you have tried troubleshooting the issue and are still experiencing problems, it is best see table below:
| Troubleshooting | ||
| Symptom | Possible Cause | Action |
| Display will not come on | Loss of 24VAC between R & C at the Control |
1) Check wiring between R & C 2) Check transformer for 24VAC output 3) Check for broken or shorted thermostat wire |
| Indoor Temperature display is incorrect |
1) Indoor temperature display needs calibrating (always allow 1 hour before calibrating after any power cycle) 2) Heat from the touchscreen is being trapped within the body of the control |
1) Calibrate indoor temperature sensor 2) Relocate the control away from any competing air sources or redirect the air sources away from the control |
| Indoor humidity display is incorrect | Indoor humidity sensor needs calibrating | Calibrate humidity sensor |
| Room temperature overshoots the desired setpoint in cooling mode |
1) The delta “Off” in cooling mode is set to a negative number 2) Cooling overshoot is enabled and the indoor RH is higher than the target cooling RH 3) Minimum compressor on time has not been met |
1) Intended operation; if objectionable, change the delta “Off” to 0 degrees 2) Intended operation: if objectionable, disable cooling overshoot or raise cooling target RH 3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu |
| Room temperature overshoots the desired setpoint in heating mode | Minimum compressor/indoor heat on time has not been met | Intended operation; if objectionable, change control response settings in the Installers Settings, Comfort Settings Menu |
| Cooling will not come on |
1) System mode is not set to Cool/Auto or setpoint is set too high 2) Delta “On” for cooling is set too high 3) Minimum off time delay is being enforced 4) Cooling system may need service |
1) Select the correct system mode and/or lower the setpoint 2) Change the delta “On” setting for cooling mode 3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu 4) Check/repair system |
| Heating will not come on |
1) System mode is not set to Heat/Auto or setpoint is set too low 2) Delta “On” for heating is set too high 3) Minimum off time delay is being enforced 4) Heating system may need service |
1) Select the correct system mode and/or raise the setpoint 2) Change the delta “On” setting for heating mode 3) Intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu 4) Check/repair system |
| Heating or Cooling is being displayed, but no air coming from registers/ vents |
1) Fan delay time has not expired 2) System is not operating properly |
1) Wait one minute for blower delay to end, then recheck register/grills 2) Check/repair system |
| Fan runs all the time | 1) Fan mode is set to “On” or “Circ” 2) System is not operating properly |
1) Intended operation; if objectionable, change fan mode to “Auto” 2) Check/repair system |
| Fan is set to “On” but not running |
1) Smart continuous fan (SCF) is enabled and the indoor humidity is higher than the cooling target RH (SCF will be displayed on fan mode button) 2) System is not operating properly |
1) Intended operation; if objectionable, disable SCF or raise cooling target humidity 2) Check/repair system |
Trane XR724 Installation Manual Download
| Title | Trane XR724 Installation Manual |
| Format | |
| Pages | 49 Pages |
| Language | English |
| File Size | 6 MB |
