Custom Air Handling Unit Design Features
In many facilities, air handling units must operate reliably for decades while meeting strict environmental requirements and providing access for ongoing maintenance.
Poor drainage, limited service access, casing leakage, and structural weaknesses can lead to operational issues, maintenance challenges, and reduced system performance over time.
Air Flow Equipment incorporates design features developed in response to real-world facility and maintenance needs, helping ensure long-term durability, serviceability, and reliable operation.
Explore Air Handling Unit Features
Our units offer superior system performance and serviceability.
Discuss Your Air Handling Unit Requirements
When a project requires air handling systems designed for long-term durability, serviceability, and performance, Air Flow Equipment can help.
Drainage and Washdown Integrity
Moisture management and drainage design play an important role in maintaining indoor air quality, preventing standing water, and supporting washdown maintenance procedures.
Continuously Welded Floor Seams
Fully welded floor seams reduce the potential for leakage and improve long-term durability.
Fully Welded Turned-Up Section Perimeter
Turned-up lips at section perimeters help contain water and support washdown conditions within the unit.
Triple Sloped Floors
Triple-sloped floors direct water toward drain locations, helping prevent standing water inside the unit.
Raised Drain Pan
Raised drain pan construction simplifies cleaning and can eliminate the need for concrete chipping during installation or maintenance.
Intermediate Drain Pan
Intermediate drain pans provide additional drainage protection in multi-section units where condensate may occur.
No Floor Penetrations
Eliminating floor penetrations helps maintain washdown integrity and reduces the potential for leakage paths.
Serviceability and Maintenance Access
Air handling systems are often expected to operate for decades. Proper service access allows maintenance teams to inspect and service components efficiently.
Full-Size Access Sections
Full access sections allow maintenance personnel to safely inspect and service internal components.
Individually Removable Coils
Coils can be removed individually, allowing maintenance or replacement without major disassembly.
Telescoping Motor Trolley
A telescoping motor trolley allows safe removal and servicing of motors in larger units.
Factory-Fabricated Maintenance Platforms
Integrated maintenance platforms provide safe access for inspection and service.
Filter Ladders
Filter ladders improve accessibility when servicing large filter banks.
Structural and Installation Design
Structural design affects both the unit’s durability and the ease of installation in the field.
Fully Welded Structural Base Construction
Structural bases use channel-perimeter framing and tubular cross-members with fully welded seams to provide long-term structural strength.
Integrated Lifting Lugs and Come-Along Plates
Integrated lifting points simplify rigging and installation during delivery and placement.
Self-Flashing Base to Curb Connection
Self-flashing connections help protect the unit from weather intrusion and simplify roof curb integration.
Factory-Furnished Coil Penetrations
Factory-prepared coil penetrations reduce field modifications and improve sealing integrity.
Knockdown Construction
Units can be factory dry-built and then shipped in sections for field assembly when mechanical room access is limited. This approach allows large systems to pass through standard doors, corridors, or elevators.
Thermal Performance and Casing Integrity
Air handler casing performance plays an important role in energy efficiency, condensation control, and overall system reliability.
Thermal Efficiency Testing
Finite Element Analysis (FEA) and other testing methods can be performed to evaluate thermal performance based on project requirements.
Dew Point Validation
Dew point analysis helps confirm that casing construction will perform properly under operating conditions.
High-Performance Casing Construction
Air Flow units are engineered to provide strong thermal performance across casing panels, corners, roof sections, floors, and the structural base.