T855 Thermostat Manual⁚ A Comprehensive Guide
This manual provides a comprehensive guide to the operation and installation of the Pro1 Technologies T855 thermostat, a versatile and reliable device designed for both residential and light commercial applications. This manual covers a wide range of topics, from basic operation and programming to advanced features and troubleshooting tips. Whether you’re a homeowner seeking to maximize energy efficiency or an HVAC technician looking for detailed installation instructions, this manual will serve as your go-to resource for understanding and utilizing the T855 thermostat effectively.
Introduction
Welcome to the T855 Thermostat Manual, your comprehensive guide to understanding and utilizing this advanced temperature control system. The Pro1 Technologies T855 thermostat is designed to provide homeowners and businesses with an easy-to-use and reliable solution for managing heating and cooling systems. Whether you’re looking to optimize energy efficiency, create a comfortable indoor environment, or simply gain greater control over your climate, the T855 offers a range of features and functionalities to meet your needs. This manual will serve as your primary resource for navigating the T855’s capabilities, from its user-friendly interface to its advanced programming options. Through clear explanations, step-by-step instructions, and helpful illustrations, this manual empowers you to fully utilize the T855’s potential and enjoy its benefits.
Thermostat Operation
The T855 thermostat features a user-friendly interface that makes controlling your heating and cooling system a breeze. The LCD display provides a clear view of the current room temperature, the set temperature, and the system’s operating status. With a simple button layout, you can easily adjust the temperature, switch between heating and cooling modes, and access various settings and features. The T855 also offers a “hold” function, allowing you to temporarily override the programmed schedule and maintain a specific temperature for a desired duration. Furthermore, the thermostat incorporates a “comfort temperature index,” which helps optimize energy efficiency by suggesting a comfortable temperature range based on the current outdoor conditions.
Thermostat Quick Reference
This section provides a quick overview of the key elements of the T855 thermostat’s display and operation. The top number displayed represents the current set temperature, reflecting your chosen comfort level or the temperature set by an automated schedule. The bottom number displays the actual room temperature, providing real-time feedback on the environment. The thermostat’s LCD screen also incorporates several icons to convey system status. The “HEAT” or “FAN” icon indicates that the heating, cooling, or fan is currently running, while the “HOLD” icon signifies that the programmed schedule has been temporarily overridden. The “Energy Efficient Leaf” icon appears when the chosen set point temperature falls within a range optimized for energy savings. Notably, the low battery icon will begin flashing when the thermostat detects low battery voltage from the AA batteries.
Programming
The T855 thermostat offers flexible programming options to customize your comfort settings and optimize energy efficiency. It features a 7-day programmable schedule that allows you to set different temperature preferences for various time periods throughout the day and week. You can create up to four distinct time periods per day (WAKE, LEAVE, RETURN, SLEEP, or OCCUPIED 1, UNOCCUPIED 1, OCCUPIED 2, UNOCCUPIED 2) to accommodate your lifestyle and energy usage patterns. The intuitive programming interface guides you through the steps to set the day of the week, time, and desired temperature for each period. The thermostat also provides the ability to set a temporary hold to override the programmed schedule for immediate temperature adjustments. This temporary hold feature is ideal for short-term comfort changes, such as when you want to quickly adjust the temperature for a specific period.
Features
The T855 thermostat is packed with features designed to enhance your comfort, energy efficiency, and control over your HVAC system. One notable feature is the Energy Efficient Leaf icon, which appears on the display when the setpoint temperature is considered an energy-efficient choice, promoting conscious energy usage. The thermostat also includes a convenient Filter Change Reminder, which alerts you when it’s time to replace your air filter, ensuring optimal air quality and system performance. For added versatility, the T855 supports both hardwired and battery power options, providing flexibility for various installation scenarios. The thermostat’s intuitive LCD display provides clear and concise information, including the current room temperature, setpoint temperature, and system status. Furthermore, the thermostat’s glow-in-the-dark light button ensures easy visibility in low-light conditions, making it convenient to operate even at night.
Warranty Information
Your new T855 thermostat comes with a 5-year limited warranty, providing peace of mind and assurance of its quality. To ensure your warranty coverage, it’s essential to register your thermostat within 60 days of installation. Registration can be conveniently done online at www.pro1iaq.com, a user-friendly platform that allows you to easily access warranty information and manage your product details. The warranty covers defects in materials and workmanship under normal use and conditions, protecting you from unexpected repairs or replacements. For specific details regarding warranty terms, exclusions, and procedures, refer to the warranty registration form or contact Pro1 Technologies directly for clarification.
Installation Tips
For optimal performance and safety, proper installation of the T855 thermostat is crucial. Begin by selecting an appropriate wall location, ensuring it’s free from drafts and direct sunlight. Ideally, position the thermostat 5 feet above the floor, away from heat sources and appliances. The subbase installation involves securing the base to the wall or junction box using screws provided. This ensures a stable foundation for the thermostat. Mount the thermostat onto the subbase, gently pressing it until it clicks into place. Always ensure the thermostat is level for a professional and functional installation. For detailed instructions on subbase and thermostat mounting, consult the T855 installation manual.
Wall Locations
Choosing the right wall location for your T855 thermostat is essential for accurate temperature readings and optimal system performance. Avoid installing the thermostat in areas prone to drafts, such as near windows or doors, as these can lead to inaccurate temperature readings; Direct sunlight can also affect the thermostat’s accuracy, so avoid positioning it on walls exposed to direct sunlight. Furthermore, avoid mounting the thermostat near heat sources like fireplaces, radiators, or appliances, as these can create localized temperature fluctuations. The ideal location is a wall that is relatively neutral in terms of temperature fluctuations, ensuring the thermostat accurately reflects the overall room temperature.
Subbase Installation
The subbase serves as the foundation for your T855 thermostat, providing a secure and stable mounting point. Before installing the subbase, ensure that the wall is clean and free of any debris or obstructions. Locate the desired position for the thermostat and mark the wall accordingly. Use a level to ensure that the subbase is mounted horizontally. Drill pilot holes at the marked locations, being careful not to damage any wiring or pipes. Secure the subbase to the wall using the provided screws, ensuring that the subbase is firmly attached. After the subbase is installed, you can proceed with mounting the thermostat itself.
Mount Thermostat
Once the subbase is securely installed, you can mount the T855 thermostat. Align the thermostat with the subbase, ensuring that the tabs on the thermostat align with the slots in the subbase. Gently press the thermostat onto the subbase until it snaps into place. You should hear a distinct click sound indicating that the thermostat is properly secured. After mounting the thermostat, you can proceed with the wiring process. Carefully connect the wires according to the terminal designations provided in this manual. Ensure that all wire connections are tight and secure to prevent loose connections or potential hazards. After completing the wiring, carefully test the thermostat to confirm that it is functioning correctly.
Wiring
The T855 thermostat utilizes a standard wiring configuration that is compatible with a wide range of HVAC systems. Before connecting any wires, ensure that the power supply to the HVAC system is turned off. This step is crucial for safety and to prevent electrical shock. Carefully identify the wires coming from the HVAC system and match them to the corresponding terminals on the thermostat. The terminal designations are clearly labeled on the thermostat itself, and detailed information is provided in this manual. Use the appropriate wire strippers to expose a small amount of wire (approximately 1/4 inch) before inserting it into the terminals. Tighten the terminal screws securely to ensure a solid connection. After connecting all wires, double-check the connections for accuracy and safety. Once you’re satisfied with the wiring, turn the power supply back on to the HVAC system and test the thermostat to ensure that it is functioning correctly.
Terminal Designations
The T855 thermostat features a standardized terminal layout for easy wiring connections. Each terminal is clearly labeled with a specific letter to correspond with different HVAC components. These designations ensure that the wires are connected correctly, guaranteeing proper operation and preventing potential issues. The common terminal is labeled “C” and is used to provide power to the thermostat. The “Rh” terminal connects to the heating system’s transformer, while the “Rc” terminal connects to the cooling system’s transformer. The “Y” and “Y2” terminals connect to the cooling system’s compressor, while the “W” and “W2” terminals connect to the heating system’s heat pump. The “G” terminal is for the fan control, and the “B” terminal is for the auxiliary heating system. Lastly, the “O” terminal is used for the outdoor temperature sensor. Always refer to the wiring diagrams provided in this manual to ensure that each wire is connected to its respective terminal. Correct wiring is essential for the smooth operation of your HVAC system and for maximizing energy efficiency.
Technician Setup Menu
The T855 thermostat incorporates a dedicated Technician Setup Menu, designed to streamline the installation and configuration process for HVAC professionals. This menu provides access to a range of settings that allow installers to fine-tune the thermostat’s operation to meet specific system requirements. By navigating through the menu, technicians can adjust settings such as the thermostat’s power type (battery or hardwired), system application (conventional heating and cooling, heat pump, or multi-stage systems), and the number of heating and cooling stages supported. The menu also allows for configuration of advanced features, such as compressor delay, filter change reminders, and the selection of different programming modes. This flexibility ensures that the T855 thermostat can be easily adapted to a wide variety of HVAC systems, simplifying the installation process and maximizing performance for every application.
Setting the Humidity
While the T855 thermostat primarily focuses on temperature control, it also incorporates features for managing humidity levels in your home. This functionality is achieved through the integration of a Comfort Temperature Index (CTI) system. The CTI takes into account both temperature and humidity levels to provide a more accurate representation of how comfortable your home feels. By adjusting the thermostat’s setpoint based on the CTI, you can achieve optimal comfort levels even when humidity levels fluctuate. This feature is especially beneficial during hot and humid weather, as it allows you to maintain a comfortable environment without over-cooling your home. To access the CTI settings, navigate through the thermostat’s menu system, where you can adjust the CTI sensitivity to match your personal preferences. By leveraging the CTI, the T855 thermostat helps you create a healthier and more comfortable living environment, even in challenging humidity conditions.
Comfort Temperature Index
The Comfort Temperature Index (CTI) is a valuable feature of the T855 thermostat that helps you optimize your indoor comfort. This intelligent system takes into account both temperature and humidity levels to create a more accurate representation of how your home feels. The CTI effectively factors in the combined impact of these two elements on your perceived comfort, rather than relying solely on temperature readings. This comprehensive approach ensures that your home environment is consistently comfortable, even during periods of fluctuating humidity levels. The CTI is particularly helpful during hot and humid weather, as it allows you to maintain a comfortable environment without excessively cooling your home. By using the CTI, the T855 thermostat helps you create a more comfortable and healthy living environment, ensuring your well-being even during periods of changing humidity conditions.
