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The Coliwoo serviced apartment hotel underwent renovation works prior to reopening.
During the commissioning stage, the original chilled water plant experienced a critical failure — both existing water-cooled screw chillers were shut down simultaneously.
Inspection confirmed that the compressor inverter drives were damaged, and the repair quotation from the maintenance contractor revealed:
Replacement lead time: ~6 weeks
Repair cost: ~SGD 80,000
No performance guarantee after repair
Maintenance provider was not the original manufacturer
This situation created a severe operational risk.
Key Challenges
Key Challenges
1. No Cooling During Hot Season
1. No Cooling During Hot Season
Singapore’s climate makes air-conditioning essential
Hotel reopening schedule was blocked
Guest comfort could not be ensured
Temporary rental cooling was required to avoid shutdown
2. Budget Pressure & Time Constraint
2. Budget Pressure & Time Constraint
Year-end budget already allocated
Repair cost unexpectedly high
Spare parts waiting time too long
Original maintenance team unable to take responsibility
3. Operational Reliability Requirement
3. Operational Reliability Requirement
For hospitality buildings, the system must be:
Quiet
Stable
Energy efficient
Able to run continuously at partial load
Solution Provided by Aura Tech
Solution Provided by Aura Tech
Deployment of Midea 2nd Generation Magnetic Bearing Chiller
Deployment of Midea 2nd Generation Magnetic Bearing Chiller
Aura Tech proposed replacing the failed system with Midea second-generation magnetic bearing centrifugal chiller, designed for high-efficiency commercial applications.
Key advantages:
Oil-free magnetic bearing technology
Extremely low vibration & noise
Excellent part-load efficiency
Fast factory delivery capability
Proven reliability in hotels, data centres, and commercial buildings
Execution
Execution
Immediate technical evaluation on site
Temporary cooling arranged to maintain operation
Factory production priority coordinated
Logistics fast-tracked
Installation completed within extremely short schedule
From decision to delivery — within ~2 weeks
This avoided a long shutdown and allowed the hotel to reopen on time.
The project demonstrated that in critical situations,
fast response + correct technology selection is more important than repair.
机电一体化_1080p.mp4Why Magnetic Bearing is Ideal for Hotels
Why Magnetic Bearing is Ideal for Hotels
Low noise for guest comfort
High efficiency for long operating hours
Stable at night low load
No oil contamination
Lower maintenance cost
Higher reliability
Suitable for:
Hotels
Serviced apartments
Shopping malls
Hospitals
Data centres
Commercial buildings
The project proved that in emergency situations, correct technology + fast engineering response is more valuable than repair.
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