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Belt-Driven Air Handlers

Horizontal Air Handler Basic

Part Number: A1-B

The Horizontal Basic Belt-Driven Air Handler (A1-B) draw-through designs are available for either indoor or outdoor applications and are equipped with blowers that can handle up to 3.75 ESP. The A1-B is housed in heavy-gauge galvanized cabinet and insulated with ½-inch thick, over three pound, neoprene-coated fiberglass. The A1-B comes with a ½-inch OD copper tube coil, forward-curved, dynamically balanced belt-driven blowers, motor, and a galvanized steel, powder-coated epoxy drain pan insulated with ⅛-inch thick insulation. A flat filter section, with a two-inch, 30% pleated efficiency filter is included. Access doors are located on both sides of the unit for easy maintenance. Supply and return-air openings have a one-inch duct collar.

Cooling Capacity

Based on 80°F DB and 67°F WB EAT, 10°F temperature rise, high fan speed. Motor voltage 115/1/60 power source. Air flow under dry coil conditions. Water pressure drops shown in feet of water.

Heating Performance

Based on 70°F DB EAT, 180°F EWT, 40°F temperature drop, high fan speed. Motor voltage 115/1/60 power source.
Air flow under dry coil conditions. Water pressure drops shown in feet of water.

Features

Features

  • 800 to 12,000 CFM
  • Belt-driven, draw-through design with forward-curved and dynamically balanced blowers
  • Cabinet is manufactured of heavy-gauge galvanized steel and insulated with 1/2” thick, over three-pound density, neoprene-coated fiberglass
  • Built for indoor applications and are equipped with blowers that can handle up to 3.75 inches of total static pressure
  • Access doors are provided on both sides of the unit for easy maintenance and are equipped with spring-loaded clips
  • Coils are manufactured of 1/2” OD copper tube with aluminum fins and are 100% underwater pressure tested to 350 PSI with a 300 PSI working pressure
  • Galvanized drain pan is finished with a powder-coated epoxy, 1/8” thick insulation and features primary and secondary drain connections
  • Adjustable, variable-pitch drive sheave and cast-iron pulley keyed to motor shaft
  • Controls and motors are factory-wired and terminated in a junction box for single-point power supply
  • Size 800 to 4,000 CFM models are equipped with vibration isolators
  • Two-inch thick, flatly mounted, 30 percent pleated efficiency filter
  • One-inch duct collar on return- and supply-air openings
  • Protective covers keep the grille openings free of debris during shipment and construction
  • Individually tagged, crated and shipped as scheduled for installation
  • ETL and AHRI certified; 100% factory tested

Accessories

Accessories Options

  • Valve package controls – wide selection of factory-mounted valves and controls
  • Mixing Box
    • Manual
    • Motorized
    • Modulating
    • 3-Position Economizer
  • Filters
    • Two-inch
    • Washable
    • Metallic
    • V-bank
  • Thermostats
Product Manual
Product Drawings

Dimensions

Options

Systems

  • DX
  • Chilled-Water
  • Hot-Water
  • Electric Resistance
  • Steam

In any combination of the above

Insulation

  • Thickness up to 1″
  • Fiberglass
  • Foil-face
  • Elastomeric

Coils

  • Copper fins/tubes
  • Phenolic-coated
  • Stainless-steel end plates
  • Right or left connections
  • Freeze protection
  • Custom fin spacing

Drain Pan

  • Stainless-steel
  • Extended
  • Drip tray
  • Condensate float switch
  • Condensate pumps

Cabinets

  • Marine duty
  • Extensions

Electrical

  • Motors
    • 115, 208, 230, 277, 460, or 575
    • Single or three phase
    • 50 or 60Hz
    • ODP (open drip proof)
    • TEFC
    • Single speed or two speed
  • Line or low voltage
  • 1 to 65 kW electric resistance heat
  • Disconnects
    • Fused
    • Non-fused
  • Condensate Float Switch
  • Condensate pumps
  • Thermostats
  • UV Light
  • Controls
  • Flow control

Further Information

None available with this product.