MSC/MSCVH - VAV Diffuser

The Model MSC/MSCVH is a series of thermally powered variable volume air diffusers designed for cooling-only (MSC) or heating and cooling (MSCVH) applications. These diffusers are entirely self-powered and self-contained, eliminating the need for external energy sources or complex control systems. Utilizing thermal actuators, they intelligently regulate airflow based on room temperature, ensuring optimal comfort levels without manual intervention. This autonomous operation makes them an efficient and cost-effective choice for maintaining desired temperatures in various spaces.

A key feature of the Model MSC/MSCVH lies in its unique temperature sensing and airflow adjustment mechanism. The diffusers continuously draw in a sample of room air across their face panel, effectively gauging the average room temperature. This is achieved by diverting a small volume of supply air through an orifice and against an induction wing, creating a slight negative pressure. This negative pressure draws secondary room air around the face panel and through an induction trough, passing it over the thermal actuators. Based on the sensed temperature, the thermal actuators mechanically adjust the diffusion damper, modulating the flow of warm or cool air into the room. Designed for optimal performance in systems with static pressures below 0.25 in.w.g., these diffusers excel in providing precise temperature control.

Model MSC/MSCVH diffusers are ideally suited for a range of HVAC projects in the construction industry. Their self-contained and self-powered nature simplifies installation and reduces reliance on external wiring or control systems. Common applications include offices, classrooms, retail spaces, and other commercial environments where maintaining consistent temperatures is crucial. They are particularly beneficial in spaces with fluctuating occupancy levels or varying thermal loads, as the diffusers automatically adapt to provide on-demand heating or cooling. This adaptability makes them a versatile and efficient solution for optimizing energy consumption and ensuring occupant comfort in various building types.