Cleanroom HVAC and Air Handling Equipment

Vertical Air Handling Unit

A stacked upflow or downflow air handler that reduces plant-room footprint while retaining full filter, coil and fan functionality.

Small Floor Footprint
Upflow or Downflow Layout
Stacked Service Sections
Rigid Vertical Frame

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Product Introduction

The vertical air handling unit stacks treatment components to use room height instead of long floor area. Air may enter low and discharge upward, or follow a downflow path to a raised floor or low duct. Filters, coils and fan sections are separated by accessible service zones, and the frame is reinforced for the vertical component load. Drain and trap geometry are arranged for the selected casing pressure, while lifting points and removable panels support installation in compact plant rooms.

Key Features

Stacked treatment sections reduce the equipment footprint in narrow mechanical rooms.

Upflow and downflow discharge options align with high-level or underfloor duct systems.

Reinforced base and frame transfer fan, coil and filter loads through the vertical casing.

Dedicated access doors keep filter and wet-section service points reachable from one side.

Customer Product Concerns

Stacking components saves floor space only if service access, drainage and structural loads are addressed in the vertical arrangement.

A horizontal unit blocks the only service aisle in a small plant room.Vertical stacking shortens the footprint while preserving treatment functions.

The discharge duct must turn sharply and adds unnecessary pressure loss.Upflow or downflow discharge connects directly to the building riser or floor plenum.

Upper filters are difficult to lift and remove safely.Filter stages are positioned at practical service height with slide-out tracks.

Condensate trap height is insufficient under negative casing pressure.The base frame provides clearance for a trap sized to the actual section pressure.

Typical Applications

Compact cleanroom plant roomsHospital mechanical closetsLaboratory retrofit shaftsVertical supply risersUnderfloor clean-air systems

Technical Parameters

Typical casing values for an insulated vertical air handling unit are listed below.

Core Material	Polyurethane or mineral-wool insulation in reinforced double-skin panels
Panel Thickness	40–60 mm insulated panel
Effective Width	800–2400 mm nominal casing width
Maximum Length	Up to 3500 mm horizontal base length for stacked configuration
Steel Facing Thickness	0.6–1.0 mm casing skins with reinforced base members
Core Density	41–45 kg/m³ polyurethane or 84–100 kg/m³ mineral wool
Thermal Conductivity	0.022–0.040 W/(m·K) according to panel core
Surface Finish	Powder-coated galvanized exterior with galvanized or stainless inner lining
Joint Type	Compression-gasketed stacked panels on bolted structural base and vertical frame
Customization	Available based on the intended application and operating environment.

Available Options

Upflow, downflow or side dischargeChilled-water, hot-water or DX coilsEC plug fan or fan arrayBottom or side return-air connection

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