Max-Air integrated butterfly valve assembly, direct mount configuration, fitted with an MT17 spring return actuator, an SV61-120 VAC solenoid valve, and a NEMA 4/4X MS45-120M03 limit switch. Solenoid valve is prewired and terminated inside of the limit switch; this provides for power and signal wires to only require one entry point for the assembly – a significant time savings for the installer.