VT8650U5500B Schneider Electric Progammable Thermostat
The Schneider Electric (Viconics) VT8650U5500B is a programmable and application-specific room controller with customizable screen colors. It's a versatile controller suitable for rooftops, heat pumps, and indoor air quality applications in commercial and high-end hospitality markets. The VT8650U5500B Schneider Electric progammable thermostat offers security features such as a PIR cover to prevent unauthorized access. With permanent program retention, settings remain intact even during power losses. Additional functionalities include mixed-air control outputs (0-10V), mixed-air sensor input for outdoor air quality consideration, and mixed-air setpoint economizer changeover for automatic switching to economizer mode in favorable outdoor conditions.
The thermostat allows customization with two or four configurable events per day, progressive recovery options, and a choice between 12-hour or 24-hour clock formats, maintaining time settings for up to six hours without power. The Occ/Unocc auxiliary contact out provides a signal for controlling other equipment based on occupancy, and BACnet MS/TP support facilitates communication with BACnet building automation systems. For wireless connectivity, an optional Zigbee Pro/Wireless communication module is available, enabling seamless communication with other compatible devices.
Key features:
- 2H/2C (3H/2C heat pump) Fan switching (on/auto/smart) System switching (O/A/C/H): This allows for flexible control of various HVAC systems.
- Backlit LCD touchscreen Display: Provides a clear and easy-to-use interface for programming and monitoring.
- Remote and OSA sensors (optional): Enables remote monitoring and control of the HVAC system, as well as optimization based on occupancy and outdoor air quality.
- Adjustable deadband: Helps to improve comfort and energy efficiency by reducing the frequency of system cycling.
Signs of a Faulty Schneider Electric Progammable Thermostat
Physical Issues:
- Cracked or damaged display: Look for visible cracks, chips, or scratches on the touchscreen.
- Unresponsive buttons: The buttons on the controller may not respond to touch or may feel unresponsive.
- Loose or damaged wiring: Check for any loose or damaged wires connected to the controller.
- Power supply problems: Ensure the controller is plugged in properly and the outlet is functioning.
System and Functionality Issues:
- Incorrect temperature readings: The displayed temperature may not match the actual room temperature.
- HVAC system not working properly: The heating or cooling system may not turn on or off as expected, even when the desired temperature is set.
- Fan malfunction: The fan may not turn on or off properly, or it may run continuously.
- Economizer not functioning: The economizer mode may not activate when outdoor conditions are favorable.
- Error messages: The controller may display error messages on the screen, indicating specific issues.
- Schedule not working: The controller may not follow the programmed schedule for temperature adjustments.
- BACnet communication failure: If connected to a BACnet system, communication issues may arise.
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FAQS
What are the benefits of using the Schneider Electric progammable thermostat?
- Improved comfort and indoor air quality: Precise control and sensor integration ensure comfortable temperatures and clean air.
- Enhanced energy efficiency: Features like adjustable deadband and economizer mode reduce energy consumption.
- Increased flexibility: The controller's adaptability makes it suitable for various HVAC systems and applications.
- User-friendly interface: The backlit touchscreen display simplifies programming and monitoring.
- Remote monitoring and control (optional): Manage your HVAC system remotely for added convenience.
My VT8650U5500B is not working properly. What should I do?
- Power cycle the controller: Turn it off and on again.
- Check the settings: Ensure the desired temperature and operating mode are correct.
- Clean the touchscreen: Dirt or debris can affect its responsiveness.
- Consult the user manual: Refer to the manual for specific troubleshooting instructions and error code meanings.