The Nest Thermostat also notes if you manually adjust the temperature on the device. Nest Protect: An occupancy sensor detects if someone is in the room. Note: To maximise battery life, battery-powered Protects check in less often, but they can work with other Nest products to help improve presence sensing accuracy. Smart thermostats can learn your day-to-day patterns and adjust the temperature for both comfort and efficiency. For example, you could set the old programmable thermostats to turn the air conditioning on and off based on time of day, such as when you are at work or late at night. The new ones add occupancy sensors to the toolbox. The Nest Thermostat lights up when you pass by and displays the time, weather, and temperature on its large and bright display. Blending into any home, it is available in a variety of colors and five languages. Additionally, any other smart home device linked to your Google Home system will be able to detect your presence. With the thermostat installed and powered, press the mode button until the thermostat is in "Off" mode. Neither the "Heat" nor the "Cool" icon should be lit. Next, press and hold the down button until the "Radio" icon flashes. When the "Radio" icon becomes solid, the thermostat has been successfully added. The smart thermostat can be set to Some us really do just 'run' hot or cold. You've probably experienced moments when the number on your thermostat simply doesn't jell with how you're feeling. If it's 74 degrees, why do 191 posts · Joined 2011. #1 · May 30, 2013. I bought a house that has a Fujitsu Hyclacon split system heat pump, Model ASU18RLXS and am installing a UTB-UUB Programmable Wired Thermostat Remote Control. The indoor unit is located in an upstairs vestibule and I have alway had trouble controlling the adjoining room temps, through the open doors. The whole point of a thermostat is to accurately present the indoor temperature. When a thermostat is above or near an air vent, the temperature readings are skewed. Hit with incoming air when the heater is on, the thermostat senses the room is warmer than it is. If the air conditioner is running, the thermostat cools down before your home does. iLm4.