AAON Air Handling Units
AAON air handling units combine exceptional customization capabilities, premium construction quality, and innovative design features for optimal performance in commercial and institutional applications.
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Technical Specifications
Capacity & Efficiency
Airflow & Pressure
Dimensions
Power Requirements
Common Issues & Solutions
Coil freezing
Symptoms:
Reduced airflow, ice formation on coil, poor heating/cooling, water damage when thawed
Solution:
Check for proper water/glycol flow, verify pump operation, inspect coil for air blockages, ensure proper freeze protection controls, improve low-ambient controls, repair or replace damaged coil sections if necessary.
Control system communication issues
Symptoms:
Unit operating in default mode, loss of remote access, error codes, components not responding
Solution:
Verify network connections and addressing, check for interference or damaged communication wiring, update firmware if available, replace communication module if faulty, reconfigure BAS integration points.
Fan bearing failure
Symptoms:
Unusual noise, excessive vibration, fan imbalance, reduced airflow, increased energy usage
Solution:
Lubricate bearings if possible, check alignment and balance, inspect for wear or damage, verify proper motor operation, replace bearings or entire fan assembly depending on design and extent of damage.
Cost Information
| Service | Average Cost | Cost Factors |
|---|---|---|
| Preventive maintenance program | $1,500-$5,000 annually | Unit size, service frequency, component complexity, filter program inclusion |
| Coil replacement | $3,500-$15,000 | Coil size and type, material (copper/aluminum), custom configurations, access requirements |
| Custom AHU installation | $25,000-$150,000+ | Unit size, customization level, energy recovery options, controls package, installation complexity |
| Fan section rebuild | $2,500-$8,000 | Fan type and size, motor specifications, control requirements, balancing needs |
Frequently Asked Questions
What unique customization options are available with AAON air handlers?
AAON offers extensive customization including double-wall construction with various insulation options, custom cabinet materials and coatings for corrosive environments, multiple fan configurations including direct-drive plenum fans, factory-installed controls with custom programming, multiple filtration options up to HEPA level, and virtually any coil or component arrangement required.
What energy recovery options are available in AAON air handlers?
AAON provides numerous energy recovery options including high-effectiveness enthalpy wheels, fixed-plate heat exchangers, heat pipes, run-around loops, and various heat reclaim coils. These can recover up to 80% of energy from exhaust air streams, significantly reducing heating and cooling costs.
How do AAON air handlers address indoor air quality concerns?
AAON incorporates several IAQ features including UV germicidal lights, advanced filtration up to HEPA level, double-sloped stainless steel drain pans to prevent microbial growth, antimicrobial coatings on interior surfaces, humidity control options, and 100% outside air capabilities with energy recovery to maintain air quality while controlling energy costs.
What fan technology options are available in AAON air handlers?
AAON offers direct-drive plenum fans with no belts to maintain, EC motor options for high efficiency, fan arrays with multiple fans for redundancy, variable frequency drives factory-installed and tested, airflow monitoring stations, and various fan inlet and discharge configurations to meet any application requirement.
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