Daikin Air Handling Units
Daikin offers custom and modular air handling units that deliver superior performance with advanced energy recovery options, precise control capabilities, and flexible configurations.
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Popular Models
Technical Specifications
Capacity & Efficiency
Airflow & Pressure
Dimensions
Power Requirements
Common Issues & Solutions
EC motor communication errors
Symptoms:
Fan not responding to speed commands, error codes on controller, inconsistent operation
Solution:
Check communication wiring integrity, verify correct addressing, update motor firmware if available, replace motor controller if faulty, ensure proper grounding.
Energy recovery wheel failure
Symptoms:
Reduced energy efficiency, wheel not rotating, excessive pressure drop, cross-contamination
Solution:
Inspect drive belt and motor, clean wheel media, check seals for proper contact, verify purge section operation, replace bearings or media as needed.
Sensor calibration drift
Symptoms:
Inconsistent temperature control, hunting behavior, comfort complaints, increased energy use
Solution:
Verify sensor readings against calibrated instruments, clean sensors, replace faulty sensors, recalibrate control system, check for interference sources.
Cost Information
| Service | Average Cost | Cost Factors |
|---|---|---|
| Annual maintenance contract | $1,200-$5,000 | Unit size, service frequency, included repairs, filter changes |
Frequently Asked Questions
What makes Daikin's Vision air handlers different from other models?
Daikin Vision AHUs feature a fully modular design for maximum flexibility, advanced fan array technology with multiple direct-drive plenum fans, energy recovery options including wheels and plate exchangers, high-efficiency filtration, and factory-installed controls with BACnet integration.
How do Daikin's energy recovery options improve efficiency?
Daikin offers multiple energy recovery technologies including enthalpy wheels (up to 80% effective), fixed-plate heat exchangers, heat pipes, and run-around loops. These can reduce HVAC energy consumption by 30-40% by recovering heat and moisture from exhaust air streams.
What fan technologies are available in Daikin AHUs?
Daikin offers multiple fan options including fan arrays with direct-drive EC motors, traditional belt-driven fans, or plug fans. Fan arrays provide redundancy, quieter operation, higher efficiency, and more precise airflow control compared to single, larger fans.
How do Daikin AHUs handle variable air volume applications?
Daikin AHUs include factory-mounted variable frequency drives, advanced controls for pressure-independent operation, airflow measuring stations for verification, and can be configured with multiple zones and discharge arrangements to optimize VAV system performance.
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