The top of the thermostat housing has two (2) screw-
To pull the housing apart, insert a small blade screw- driver into the slot and rotate 90 . This will release the top housing snaps. 
Repeat the procedure in the other screw driver slot.
Separate the housing halves by pulling the top forward until the pins release, and then lift the bottom out.
TSTATBBPQ501 specifications
The Bryant TSTATBBPQ501 is an advanced digital thermostat designed to elevate the efficiency and convenience of temperature control in residential heating and cooling systems. Emphasizing user-friendliness and smart technology integration, this model stands out with its innovative features, making it a popular choice among homeowners and HVAC professionals alike.One of the main features of the TSTATBBPQ501 is its intuitive touch-screen interface. The display offers clear and easy navigation, allowing users to adjust settings effortlessly. The programmable options enable homeowners to customize their heating and cooling schedules according to their lifestyle, optimizing comfort while potentially reducing energy costs. The thermostat can be programmed to vary temperatures throughout the week, ensuring a pleasant environment when at home and saving on energy use when away.
In terms of technology, the Bryant TSTATBBPQ501 is equipped with Wi-Fi connectivity. This allows users to control their home’s temperature from anywhere using a smartphone or tablet. The compatibility with smart home systems is another highlight, as it can be integrated with popular platforms, enhancing overall automation and convenience.
The unit also incorporates advanced energy saving features. By providing real-time energy usage reports, it helps homeowners monitor their consumption and make informed decisions to enhance efficiency. Furthermore, users can take advantage of alerts and reminders regarding filter changes or maintenance needs, ensuring the HVAC system operates smoothly and prolonging its lifespan.
A significant characteristic of the TSTATBBPQ501 is its versatility. It supports various HVAC systems, including single-stage and multi-stage heating and cooling systems, making it adaptable for different setups. This flexibility, paired with its robust construction, ensures reliability and longevity.
Additionally, the Bryant TSTATBBPQ501 boasts eco-friendly credentials. By optimizing energy usage through its smart technology, it not only benefits homeowners financially but also contributes to sustainability efforts by reducing overall energy consumption.
In summary, the Bryant TSTATBBPQ501 thermostat combines intuitive design, smart technology, energy efficiency, and versatility, making it an excellent choice for modern homes. Its numerous features cater to the needs of contemporary lifestyles, ensuring comfort, convenience, and savings.