BELIMO SPRING RETURN MOTORIZED FCU VALVE Z-SERIES: The Z..S-.. zone valves are intended for the use in control terminal units such as fan-coil and VAV boxes in heating, ventilation and air conditioning systems. The valves can be used with hot and cold water within the temperature range from 0ºC (non-freezing) to 93ºC. #Belimo Actuator #FCU Manifold #Belimo FCU Valve #Belimo Z220S-230 #