Is a vent limiter included or required

It is engineered for constant high-volume output at its rated 1765 RPM speed to maintain system static pressure

which typically indicates a worn plunger or scale buildup on the diaphragm and orifice

It is compatible with Parker G23 or MKC-2 series coils

Industrial-Grade Housing: The rugged phenolic resin construction provides superior insulation and protection against harsh mechanical room environments

Nidec-US Motors 1678 Motor 320819-301 Is a vent limiter includedThe US Motors 1678 is a heavy duty Permanent Split Capacitor (PSC) motor designed specifically for fan coils and direct drive blower applications. Operating at 277Vac Single Phase, this 1 16 HP motor delivers a steady 850 RPM across 3 speeds, allowing for precise airflow adjustment within high voltage commercial HVAC systems. Built on a 42Y NEMA Frame, it features a Lug Mount configuration and an Open Air Over (OAO) enclosure, ensuring optimal heat