Cleanroom HVAC and Air Handling Equipment

Compact Air Handling Unit

A factory-assembled short-footprint air handler that integrates essential filtration, coil and fan functions for smaller controlled spaces.

Short Equipment Footprint
Factory-Assembled Package
Integrated Controls
Accessible Service Side

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Product Introduction

The compact air handling unit combines closely matched filters, coil and direct-drive fan in a monobloc or two-section casing. Component spacing is optimized to reduce overall length while maintaining coil drainage and filter removal. Integrated controls can manage fan speed, valve output, frost protection and filter alarms. The package suits smaller clean support rooms and retrofit locations where a full modular AHU would occupy excessive plant space.

Key Features

Close-coupled treatment sections reduce plant-room footprint without removing essential service access.

Factory-installed controls simplify fan, coil and frost-protection integration.

Direct-drive fans eliminate belt clearance and reduce maintenance inside the compact casing.

Multiple duct orientations help the unit fit above, beside or behind existing services.

Customer Product Concerns

Compact equipment must save space without compressing filters, drains and service points until maintenance becomes impractical.

A conventional modular AHU is longer than the available mechanical room.Close-coupled components and a direct-drive fan shorten the casing.

Filter removal collides with nearby pipework.The service side and pull direction are selected to match the actual clear zone.

Condensate is drawn off the coil because the fan is too close.A sized separation space and sloped drain pan preserve moisture control.

Field-mounted controls occupy additional wall and wiring space.A unit-mounted controller and sensors centralize the operating package.

Typical Applications

Small cleanroom suitesLaboratory support roomsMedical-device inspection areasControlled storage spacesRetrofit ventilation systems

Technical Parameters

Typical construction ranges for a compact insulated air handler are listed below.

Core Material	Closed-cell polyurethane or mineral-wool insulation in compact double-skin casing
Panel Thickness	25–50 mm insulated panel
Effective Width	600–1800 mm nominal casing width
Maximum Length	Up to 4500 mm complete assembled length
Steel Facing Thickness	0.6–0.8 mm galvanized or coated sheet skins
Core Density	38–42 kg/m³ polyurethane or 60–85 kg/m³ mineral wool
Thermal Conductivity	0.023–0.040 W/(m·K) depending on insulation
Surface Finish	Powder-coated galvanized exterior with smooth galvanized inner surfaces
Joint Type	Gasketed monobloc or two-section casing with removable service panels
Customization	Available based on the intended application and operating environment.

Available Options

Horizontal, vertical or top-connected casingChilled-water or DX coolingEC fan and integrated controllerPlate or rotary heat-recovery section

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