TKB102 Mechanical FCU thermostat is designed to control the fans valves, dampers or electric ... fan coil units TKB102... Mechanical FCU ThermostatIntroduction:TKB102 Mechanical FCU thermostat is designed to control the fans, valves,dampers or electric ... junction box munting>2 -pipes>RestartWiring Diagram: TKB102... Mechanical FCU thermostat for air conditioning system