A dual compressor chiller can also provide installed costs savings of up to 35% compared to installing two separate chillers by eliminates piping to the second chiller and to additional pumps, using fewer valves and controls, and reducing rigging costs and control wiring.
The redundancy of two of everything connected to the evaporator and condenser enhances reliability. If any compressor component fails, it can be removed or repaired without shutting down the other compressor.