Direct Fired Standard Features

Construction

  • ETL Listed
  • Formed G-90 Galvanized base < 10,000 CFM
  • Primed welded structural steel base > 10,000 CFM
  • G-90 Galvanized Casing
  • Single wall access doors
  • Internally mounted motor, burner, and controls
  • Pre-piped, pre-wired, and factory tested
  • Sectioned units may require field assembly, wiring, and piping
  • Lifting Provisions
  • Vertical units have additional features
  • Built-in filter sections
  • Built-in 36" stand
  • Ground level electric and manifold service access
  • Multiple configurations
 

Fan & Motor

  • DWDI forward curve industrial type blower(s)
  • Solid turned ground and polished shaft
  • Self aligning bearings
  • Premium E ODP blower motor with 1.15 service factor
  • Motor starter & overload protection
  • Adjustable motor base
  • Variable pitch drive up to 30 HP (Except when VFD is utilized)
 

Burner

  • Midco or Eclipse direct-fired burner
  • ANSI Z83.4 / CSA 3.7 gas train
  • Electronic flame supervision (flame rod rectification)
  • Air proving burner safety switch
  • High gas pressure switch
  • High temperature limit
  • Ignition transformer
 

Controls

  • Non-Fused door interlocked disconnect switch
  • Discharge air temperature control, with remote set point & summer-off-winter selector switch
  • Auxiliary contacts for exhaust fan interlock
  • Control voltage transformer
 

Direct Fired Optional Features

Construction

  • Double wall access doors with extruded aluminum frames (rated to 8" w.c.)
  • 1” 1.5#, 2” 1.5#, 2” 3#, 2" R-7.7, or 2” R-13 insulation
  • Enamel, Epoxy, or Heresite coatings
  • Custom configurations and dimensions
  • Built-in or separate chilled water or DX cooling coil module
  • Built-in or separate direct evaporative cooler module
  • Packaged DX cooling
  • Flat plate cell energy recovery section
  • Enthalpy wheel energy recovery section
 

Accessories

  • Mixing Box
  • Intake air hood w/ bird screen
  • Intake damper (standard or low leak)
  • Discharge damper (standard or low leak)
  • Discharge diffuser
  • Roof curb
  • Service platform
  • Service lights
  • GFI service outlet
  • V-Bank intake filter section
    • 1" or 2" Cleanable filters
    • Linked panel MERV-8 filters
    • 2" pleated MERV-8 filter
  • Flat bank final filter section
    • 2" Pleated MERV-8 filters
    • 4" Pleated MERV-11 to 14 filters
    • 12" Cartridge MERV-11 to 16 filters
    • Bag Filters MERV-9 to 14 filters
    • 12" Carbon odor control filters
    • 12" HEPA 99.97 to 99.99% filters
 

Fan & Motor

  • BIDW or AFDW Industrial centrifugal fan
  • BISW or AFSW Industrial centrifugal fan
  • Commercial or industrial plenum fan
  • Commercial or industrial plug fan
  • TEFC, Severe Duty or EXP Motors
  • AMCA A, B, or C Spark Resistant
  • Motor and bearings outside air stream
  • Spring or neoprene isolation
 

Burner

  • IRI or FM insurance compliance
  • Burner on/off economizer ductstat
  • Low temperature freeze stat
  • High gas pressure regulator
 

Controls

  • Fused door interlocked disconnect switch
  • Room temperature control
  • ETL listed Recirculating | AR-80
  • ETL listed Variable Air Volume | Demand Air
  • ETL listed high outlet temperature system \ H.O.T. 2-speed paint / bake
  • Supply fan VFD
  • DDC control system
  • PLC control system
  • Operation indication lights
  • Circuit analyzer indication lights
  • Clogged filter switch
  • Smoke detector
 
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