IRVDH Series Blower Heaters




IRVDH Series blower heaters are suitable for indoor, inline or wall mounted applications with no louvers; various mounting options available.

The larger IMDH Series blower heaters; 6Kw and higher, provide staged heating elements to minimize power supply & demand billing charges.

Blower Heater Features:

  • Status Indication; Including “No Air” & Max Speed Indications
  • Overheat Protection
  • Low Temperature Shut Down
  • Discharge Temperature Sensor
  • Adjustable Fan Speed in Auto Mode
  • Full Fan Speed in Manual Mode
  • Auto Reset
  • Fan Boost Start
  • Staged Heating
  • CSA Certified
  • Air Intake Filtration
  • Regulated Air Velocity

Blower Heater Specifications:

  • Electrical Requirements:
    1. Controls Circuit – 120VAC, 60Hz
    2. Heating Element Circuit – can be 208, 240, 480, or  600VAC, 1 or 3 phase, 1,2 or 3 stages
    3. Wiring Between Remote Dexon Status Board to Dexon Blower Heater (Typically cable supplied by Dexon)
    4. Connections Between Optional Alarm Module and External Alarms (when used)
  • Heating Capacity – Available in 3000 to 40500WATT, with Staged Elements
  • CFM  Capacity:
    1. Approximately 80 – 1520CFM @ 0″ Static Pressure Water Column (With Single Fan)
    2. Approximately 100 – 2500CFM @ 0″ Static Pressure Water Column (With Dual Fans)
  • Variable Speed Brushless DC Fan
  • Dimensions Vary with Blower Selection and Capacity
  • Control Access is on the Front of the Unit with Various Air Inlet Configuration Options Available
  • Wall Mounting Brackets Provided
  • Bottom Discharge can be Round or Rectangular and Size is Based on Blower Selection and Capacity. Pipe Adaptor Plate with Gasket Provided for Round Discharge

Installation Requirements:

  • Status Indicator must be installed remote from hazardous location in appropriate enclosure
  • Class 1, Div.2 units must be fused remote from hazardous locations
  • A pressure relief vent/gooseneck equivalent to discharge outlet is required

Blower Heater Options:

  • Class 1, Division 2, Gas Groups C & D Locations or Ordinary Locations Certification
  • Optional 95ALM Alarm Module for Interfacing with External Alarms
  • Manual Mode Interface to Initiate Full Fan Speed from External Dry Contact
  • Pre-mounted Status Enclosure

Refer to owner’s manual for more information