An ADT thermostat manual is a document that provides instructions on how to use an ADT therthermostat. This type of thermostat is a programmable device that allows users to set the temperature of their home or office to a specific level. The manual provides information on how to install the thermostat, how to program it, and how to troubleshoot any issues that may arise. It also provides information on how to maintain the thermostat and keep it running smoothly. The manual also provides tips on how to save energy and money by using the thermostat correctly. By following the instructions in the manual, users can ensure that their thermostat is working correctly and efficiently.