Description

The perforated supply diffuser with neck mounted pattern controllers (PDN) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles. Neck mounted pattern controllers provide a horizontal air pattern with a strong Coanda effect against the ceiling. To adjust the pattern, unscrew individual pattern deflectors and replace them in the desired orientation to achieve 4, 3, 2 or 1-way airflow.