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Process Air Heaters Offer Improved Performance and Increased Versatility


Features

Benefits

Watlow Hannibal has developed a new line of process air heaters that offer improved performance and increased versatility in medium to low temperature applications.

The new duct heaters are modular and consist of two parts. The first is a 6 kW heater available in either 240 or 480 volts, single or three phase.

The second part of the heater consists of the electrical housing that protects each module's termination area, and a main flange that bolts into the user's ductwork. The heater modules are installed in the housing and main flange via rectangular slots in the main flange. The range of modules that can be accommodated in various duct heater assemblies, range from 1-10 modules. A range of 6-60 kW, in 6 kW increments is achieved.

The new design of the modular duct heater offers increased reliability. The individual modules are removable through the housing of the assembly, which eliminates the need to pull the complete heater from the ductwork. This reduces downtime and costs because the heating elements can be replaced individually.

Performance improvements include quicker response time and reduced infiltration from the air stream being heated into the electrical enclosure.

  • Individual modules removable through housing
  • Reduced downtime for replacement of module
  • 27% reduction in heat-up time as compared to traditional 0.430 inch diameter duct heater elements
  • Faster response
  • Smaller diameter elements (0.315 inch)
  • 25% lower energy usage on initial heat-up
  • 31% lighter weight than traditional tubular duct heaters
  • Reduced shipping costs and increased worker safety
  • Greater free cross sectional area
  • Lower pressure drop
  • Improved seal between element and electrical housing
  • Lower electrical housing temperature
  • Flexible module wiring
  • Ability to sequentially stage modules
Applied Thermal Systems, Inc. © 2007 | All Rights reserved