which is delivered to a room or region the damper is typically controlled by an electric pneumatic or digital actuator which in turn is regulated by a thermostat a set up a Jason rooms or regions in a building. Which have identical heating and air conditioning needs are at least one terminal unit and corresponding thermostat to each zone price manufactures many different varieties of building needs we discuss terminal units in greater detail in the forthcoming terminal unit section heating coils may be installed after a terminal unit to provides heat honors on by his own basic as mentioned previously building with a high number of occupants may not require extensive heating even during the coldest months of the year heating coils offer an efficient way of providing he’d for those few areas that require it and are controlled by the same thermostat system as the terminal unit various