TK: Small Square Therma-Fuser VAV Diffuser


The model TK Therma-Fuser VAV diffuser is a 12 5/8in / 320mm square ceiling diffuser with built-in temperature controls. The TK has four blade style dampers that open and close to meter airflow (warm or cold) into the room in response to room temperature. The dampers are mechanically actuated by thermal actuator/thermostats.


  • Provides VAV heating and VAV cooling in a compact size favored by architects
  • Simple low-cost ceiling air distribution
  • Built-in concealed tamper resistant thermostats sensing zone air solve the difficulty of locating individual thermostats in an open office
  • Dial in temperature set points— no turns to count and no tools required
  • Highest ADPI of any task conditioning system