Conventional (steel/ fibreglass) Air Handling/ Fan Coil Units

Features of our conventional units include: -

  • Continuous galvanised steel panel work.
  • 25mm fibreglass insulation with 450 perforated aluminium foil lining (optional 50mm)
  • 0.9mm thick Stainless Steel drain trays to AS 3666.
  • T.E.F.C. Motors.
  • Man sized access panels on both sides.
  • Internally mounted motors to allow a complete fan, bearing and motor combination, rigidly assembled, into one common sub assembly (resilient mounted)
  • Forward curved centrifugal fans D.W.D.I constructed from galvanised steel.
  • Ripple aluminium finned, copper tube A.R.I 410 Rated cooling and heating coils. Each coil selected to meet the specified duty.
  • All standard units will provide their maximum air flow at 1200pa total pressure.

Options

  • Single zone or multi zone
  • Electric heating
  • Powder coated external/ internal finish
  • Spark proof fan wheels
  • 50mm Insulation
  • Fully lined
  • Filter/ mixing box
  • Acoustic lining
  • Direct Drive - Variable speed motors to 2000 L/S as standard.
  • Flame proof motors
  • Stainless steel Construction
  • Stainless steel shafts
  • Stainless steel wheels.
  • Backward Curved Fans
  • Sectionalised construction or complete knockdown.

Technical Details

Casings: Standard construction incorporates the use of continuous galvanized sheet steel in flanged panels. Panels are "cross broken" to prevent drumming. Minimum gauge is 1.2mm (up to model 400) and 1.6mm on larger units. All internal surfaces are insulated with a minimum of 25mm semi rigid fibreglass covered on the air side with 450 sisalation aluminum foil. Assembly is MIG welded. Units are available as single zone vertical and horizontal or multi-zone type with hot and cold deck dampers or cold deck bypass.

COILS: All units incorporate ripple finned staggered tube design with tub diameters of 10mm, 12.5mm or 16mm. Each coil is selected to provide optimum performance for the specific duty. Materials of construction are copper tube aluminium fins; Optional materials:- cupro nickel tubes, copper fins, brass casings and passivated, acrylic or electrotinned finish. Coils can be supplied to operate with chilled or hot water, refrigerant, steam brine or heat transfer fluid.

FANS: Base units include D.W.D.I. forward curved centrifugal fans resiliently mounted fabricated from galvanised steel. They are mounted on mild steel fan shafts with ball bearings. Units up to model 150 are standard with direct drive fans. Optional fans are - medium pressure forward curved, laminar blade backward curved or air foil blade backward curved wheels.

MOTORS: Direct driven units utilize multispeed single phase drip proof motors. Belt driven units have 3 phase 4 pole T.E.F.C. aluminium frame motors. All motors are located within the unit casing allowing the construction of an integral fan motor sub assembly to ensure structural soundness.

FILTERS: All filters are optional, however we offer a wide variety of dry media and disposable types, from 25mm flat panel to 50mm pleated or vee form with media of your choice. Filter sections can be combined with a return air/ fresh air mixing box complete with volume control dampers.

ELECTRIC ELEMENTS: Are black heat zincoloy sheath type sized to the required wattage. Standard fitments are casing lined with asbestos free fire rated Kao-board to AS 1668 and safety thermostat. As an optional extra we provide an electrical pack including motor and heater contactors, relays and fuses all wired to a common terminal strip.

DRAIN TRAYS: All F.C.I. Fan coil and air handling units feature 0.9mm thick stainless steel drain trays externally insulated with 25mm high density polystyrene foam and are installed to AS 3666.