The Ritz Carlton, Marina Del Rey
Located on one of the largest man-made marinas in the world, The Ritz Carlton Marina Del Rey offers guests luxurious accommodations and surroundings within a tranquil seaside hideaway.
The property engaged AirRevive to refurbish 264 Trane vertical fan coils units manufactured in 1989.
Fan Coil Units Manufacturer: Trane
Project Scope of Work: Guest room vertical fan coil unit refurbishment and valve replacement.
Challenge: The airflow was below design specifications due to impacted coils. The control valves were leaking-by which was causing simultaneous heating and cooling, thus wasting energy and inhibiting the unit’s ability to cool and heat as designed. The project’s goal was to bring the units back to efficient operation to cool and heat as designed.
- Coil temperature averaged 61.72℉.
- 100% of the unit’s coil temperature was 56 degrees and above.
- Supply temperature averaged 63.1℉.
- 95% of the unit’s supply temperature was 60 degrees and above.
- 600 CFM airflow averaged 505 FPM.
- 84% of the unit’s airflow was below the manufacturer’s design target.
Solution: Rejuvenate the coils to increase airflow and enhance heat transfer. Replace by-passing control valves.
- Coil temperature dropped by 11.4% from an average of 61.72℉ to 54.46℉.
- Supply temperature dropped by 9.8% from an average of 63.1℉ to 56.9℉.
- Airflow was raised by 52% from an average of 505 FPM to 770 FPM.
Before & After Airflow Data
The graph below displays the before and after FPM airflow on high fan setting. The red line from left to right demonstrates the airflow before service from low to high ranged from 300 FPM to 798 FPM. The blue line demonstrates the airflow after service is within the manufacturer’s design target, averaging 770 FPM. The horizontal axis represents the room numbers.
Before & After Supply Temperature Data
The graph below displays before and after supply temperature. The red line from left to right demonstrates the supply temperature before service from high to low ranging from 73 degrees to 58 degrees. The blue line demonstrates the supply temperature after service averaging 56.9 degrees. The horizontal axis represents the room numbers.