VIKING PDS-21 Pressurized Wall Cavity Dryer – Heated Drying to 205°F, 115V

PDS-21 Pressurized Cavity Drying for Behind Cabinets and Wall Voids

The VIKING PDS-21 is a pressurized wall cavity dryer that pushes heated, dry air through tubing into spaces a conventional air mover cannot reach. There is no squirrel cage and no external attachments. Restoration crews use it to dry under sinks, behind permanent cabinets, and inside wall cavities, which shortens the dry-out on kitchen and bathroom losses.

PDS-21 Heated Pressurized Drying System

The PDS-21 dries enclosed assemblies directly instead of blowing air across a surface.

• Heated air up to 205°F through 200 ft of tubing — reaches wall cavities, under sinks, and behind permanent cabinets that air movers cannot dry
• On-board Plug-Off system — raises pressure to push heated air deeper into closed assemblies
• 92 CFM 2-stage tangential by-pass motor — drives the air without a squirrel cage or bolt-on attachments
• Built-in cord wrap, 19 lb stackable housing — stores and stacks without loose cords hanging off the unit
• Thermal protection switch with auto reset — guards the motor on long unattended drying runs
• Runs on a standard 115V circuit at 9 amps — sets up on site without special power

PDS-21 Applications and Environments

The PDS-21 is built for water-damage restoration of kitchens, bathrooms, cabinetry, toe-kicks, and wall cavities after floods and pipe leaks. The roto-molded polyethylene housing holds up to job-site handling, the motor is UL approved, and the unit ships with tubing and a 25 ft cord. The one-year limited warranty covers the unit but not the brushes, which are a wear part on the PDS drying line. For cavity drying in occupied structures, it lets crews dry in place rather than opening walls.

Specifications

Documents

PDS-21 Owner's Manual (PDF)

PDS-21 Specification Sheet (PDF)