Carrier Air Handling Units
Carrier air handling units provide versatile solutions for commercial and institutional buildings with focus on energy efficiency, quiet operation, and advanced air management capabilities.
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Technical Specifications
Capacity & Efficiency
Airflow & Pressure
Dimensions
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Common Issues & Solutions
Bearing failure
Symptoms:
Unusual noise (squealing/grinding), excessive vibration, overheating, grease leakage
Solution:
Inspect bearings, check alignment, lubricate properly, replace bearings if worn or damaged, verify proper belt tension and fan wheel balance.
Control valve malfunction
Symptoms:
Poor temperature control, leaking valve, hunting/oscillation, uneven heating/cooling
Solution:
Check valve actuator operation, verify control signal, inspect valve body for damage, rebuild or replace valve assembly, recalibrate and test proper operation.
Drain pan overflow
Symptoms:
Water leakage, mold growth, water stains, poor indoor air quality
Solution:
Clean drain pan and ensure proper slope, clear blockages in drain line, verify trap design and installation, add drain pan treatment to prevent microbial growth.
Cost Information
| Service | Average Cost | Cost Factors |
|---|---|---|
| Filter replacement program | $800-$3,000 annually | Filter quantity and MERV rating, change frequency, accessibility, disposal requirements |
| Coil cleaning | $500-$2,000 | Coil size, contamination level, cleaning method, access restrictions |
| Control system upgrade | $5,000-$20,000 | Unit size, controller type, sensors required, integration complexity, programming needs |
| AHU refurbishment | $10,000-$50,000 | Unit size, components being replaced, structural modifications, operational downtime |
Frequently Asked Questions
What configurations are available for Carrier air handling units?
Carrier AHUs are available in horizontal, vertical, indoor, and outdoor configurations. Options include single or multi-zone, variable air volume or constant volume, with various discharge arrangements (top, bottom, or side) to accommodate diverse installation requirements.
How does Carrier's AHU construction improve energy efficiency?
Carrier AHUs feature thermal break construction, double-wall insulation with minimal thermal bridging, low-leakage cabinet design, high-efficiency fan systems with aerodynamic designs, and strategically placed access doors to minimize air leakage while providing maintenance access.
What control systems integrate with Carrier air handlers?
Carrier AHUs integrate with the Carrier i-Vu building automation system, CCN (Carrier Comfort Network), or third-party BMS systems via BACnet, Modbus, or LonWorks protocols. Factory-mounted controls options include space pressure control, variable frequency drives, and advanced sequence programming.
What noise reduction features are available on Carrier AHUs?
Carrier offers multiple noise reduction options including double-wall construction with sound-attenuating insulation, internal fan isolation, flexible duct connections, discharge sound attenuators, vibration isolators, and fan selection optimized for noise-sensitive applications.
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