"AHU"/HW" Air Handling Units with LPHW Heater

  • Hot water heated air handling units
  • Duct or Roof mounted
  • 14 models
  • 7 sizes


  • hot water heated air handling unit
  • centrifugal motors
  • internal (duct) and external (roof) versions available
  • 14 models, 7 sizes
  • airflow to 1.59 m3/sec
  • pressure to 350 Pa
  • speed controllable
  • inlets and outlets fitted with "Mez" type duct connecting flanges
  • rigid casing construction with triple layer of steel at corners - 8mm dia integral fixing point at each corner for either floor or ceiling mounting
  • optional casing materials include stainless steel or aluminium - can be powder coat painted to any BS or RAL colour
  • bag and panel filter fit into slide-in channels
  • top access on duct mounted models (bottom access can be provided if required)
  • top access on roof mounted models (via a single, removable weather lid)
  • air inlets on external units protected by weatherproof cowl and bird guard
  • quick and easy to install

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  • internally mounted units are finished in galvanised, double skinned steel with 25mm thick mineral wool slab insulation of 45 kg/m3 density (providing high degree of acoustic insulation) (50mm panels with high density mineral wool and barrier matt also available for reduced noise breakout)
  • roof mounted units constructed in galvanised steel, single skin with plastisol exterior in light grey to BS10A05
  • fans are double inlet, double width, forward curved centrifugal type
  • motors - with thermal overload protection
  • LPHW batteries are constructed from copper tubes mechanically bonded onto aluminium fins and are supplied with standard BSP make connections
  • maximum air temperature 40ºC
  • panel filters manufactured from bonded and coated spun glass fibre to G3 grade, fitted as standard in easily removable housings. Higher degree of filtration can be provided on request


AHUs can be supplied with a number of optional features including:

  • heat recovery systems
    • cross flow heat exchangers
    • thermal wheel
    • run around coil
  • alternative heating source
    • gas fired
  • casings
    • can be constructed in a vertical or horizontal layout
    • can be supplied as "flatpack" form to facilitate on-site assembly

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  • EN60335-2-80
  • EC Low Voltage Directive 73/23-93/68
  • EC Directive EMC89/336
  • EC 89/392
  • manufactured in UK to ISO 9001

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  • AHU-HW-1-D - duct
  • AHU-HW-1-R - roof
  • AHU-HW-2-D - duct
  • AHU-HW-2-R - roof
  • AHU-HW-3-D - duct
  • AHU-HW-3-R - roof
  • AHU-HW-4-D - duct
  • AHU-HW-4-R - roof
  • AHU-HW-5-D - duct
  • AHU-HW-5-R - roof
  • AHU-HW-6-D - duct
  • AHU-HW-6-R - roof
  • AHU-HW-7-D - duct
  • AHU-HW-7-R - roof

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*Selection Chart

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*LPHW Pressure Curves

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*Dimensions Plant Models*Dimensions Roof Models

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*Control Panel*Silencer Dimension*Silencer Insertion Loss*Silencer Pressure Drop

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