Valve actuators are connected to your building’s HVAC piping and allow the smart thermostat to control the heat/cool by opening and closing the hot and cold water valves. The motor activates the fan and controls the speed. Nextech will examine and test your valve actuators and motor prior to the smart thermostat installation and notify you of any deficiencies found. Defective, aging, and/or inoperable valves and motors can adversely affect the proper function of your smart thermostat. In many circumstances Nextech is able to quote to replace aging and or deficient motors and actuators to ensure the best possible function of your system. You may wish to consult with your building’s engineer or maintenance person if an issue is found and a component in your system needs to be repaired or replaced, as some buildings provide this service to residents themselves.