PDMC-FR Series

Product Information

View Performance Data PDMC-FR
Three Hour Rating - Lay-In

PRICE PDMC-FR perforated face high capacity modular core directional diffusers are Fire-Rated Assemblies listed in the UL Listed (Under­writers Laboratories Fire Resist­ance Directory) and ULC Listed (Underwriters Laboratories of Canada Equipment and Materials Directory). This design meets time versus temperature test criteria and NFPA 90A requirements.

PDMC-FR perforated face high capacity modular core directional diffusers match in detail the SMCD-FR series and offer a perforated face for smooth integration with the ceiling systems. Field adjustment of the air pattern is easily accomplished by opening the perforated faceplate and repositioning the modular pattern controllers. The core design provides an excellent horizontal pattern suitable for VAV applications.

  • Non-adjustable, butterfly type ceiling radiation damper.
  • Designed for use in an exposed grid suspension ceiling (T-Bar Lay-in) with a three hour or less restrained or unrestrained assembly rating. Units must be installed in accordance with the instructions that accompany each unit.
  • Thermal blanket is non-asbestos.
  • Standard 165°F (74°C) fusible link, optional 212°F (100°C) fusible link.
  • Perforated face panel has 3/16" (5) diameter holes staggered 1/4" (6) on center.
  • Individual louvered air pattern modules are located at the neck and can be easily repositioned in the field without tools. Provides access to optional adjustable volume controller (Allen key adjustable).
  • Adjustable 1, 2, 3 or 4-way patterns, in a wide selection of sizes.


Product Selection Checklist

  1. Select Inlet Size L x W.
  2. Select Face Size based on ceiling module (24 x 24 standard).
  3. Select Diffuser Style by model number.
  4. Select Pattern.
  5. Select Finish.

8 in. x 8 in. / 24 in. x 24 in. / PDMC-FR / 3 / B12

White Powder Coat
For optional and special finishes see
color matrix.

Available Module Sizes
24" x 24"
(610 x 610)
12" x 12"
(305 x 305)

*Performance Note:
The catalog data referenced can be used as a guide for selection of fire-rated diffusers. Sound and pressure drop values are increased from standard catalog values for some models and sizes due to restriction of the fire damper. For detailed selection assistance please contact your Price representative.
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