BCWC Water-cooled water chillers with centrifugal compressor/s 300 – 1250kW

Water-cooled water chillers with centrifugal compressor/s Technical cooling: efficiency & reliability … and extreme solutions Extreme solutions in terms of: Energy savings Noise levels Limited available power supply Weight Technical Cooling Technological High Perf C.C. Process cooling

Attracting perfection. BCWC units use "oil-free" revolutionary technology. Optimum efficiency at all load conditions Maximum reliability Minimum maintenance Reduced dimensions and weights Ultra silent operation

Water cooled units with centrifugal compressors Water cooled range Water cooled units with centrifugal compressors Water cooled units with screw compressors 300 500 700 900 1100 1300 [kW] BRWC BCWC

Main Features Between 1 and 4 “oil-free” centrifugal compressors Single refrigerant circuit Flooded evaporator Shell & tube condenser Electronic expansion valve R134a refrigerant

BWCW0320A cooling capacity: 320kW compressor/s: 1 circuit:1 300 500 700 900 1100 1300 [kW]

BWCW0630A cooling capacity: 630kW compressor/s: 2 circuit:1 300 500 700 900 1100 1300 [kW]

BWCW0950A cooling capacity: 950kW compressor/s: 3 circuit:1 300 500 700 900 1100 1300 [kW]

BWCW1250A cooling capacity: 1250kW compressor/s: 4 circuit:1 300 500 700 900 1100 1300 [kW]

Magnetic force. BCWC units use "oil-free" revolutionary technology. The impellers operate within a magnetic toroidal field, avoiding mechanical friction. BCWC units are the ideal choice for: Optimum efficiency at all load conditions Maximum reliability Minimum maintenance Reduced dimensions and weights Ultra silent operation

Oli-free centrifugal compressor 2 stages of centrifugal compression Speed Control with inverter Temperature and pressure sensors DC/DC brushless synchronised motor IGV Control of the motor and magnetic bearings

Refrigerant flow

Gas compression

Top level performance. An “Oil-free centrifugal compressor is an inverter-driven compressor which only uses the IGV in extreme conditions. BCWC units are able to adapt the cooling capacity to the load with extreme precision. The T at the set-point is ±0,2°C(*) (*)with load higher that min load Time Delta T BCWC BRWC Traditional

Top level performance. 2 4 6 8 10 12 25% 50% 75% 100% Load [%] EER BCWC - 630kW BRWC - 630kW BCWC units are able to adapt the cooling capacity of the compressor to the load extremely efficiently. The IPLV and ESEER show that the BCWC efficiency is optimized in all operating conditions.

Top level performance. -39% -38% -48% 0,0 10.000,0 20.000,0 30.000,0 40.000,0 50.000,0 60.000,0 70.000,0 80.000,0 90.000,0 100.000,0 320 650 950 1250 Cooling capacity [kW] Running cost [€/year] -100% -90% -80% -70% -60% -50% -40% -30% -20% -10% 0% ''oil-free'' compressor chillers Screw compressor chillers % Energy saving

Top level performance. BCWC units have an integrated soft start. Current [A] Top level performance. BCWC units have an integrated soft start. This means a very low starting current: 320 kW  < 2A 650 kW  < 75A 950 kW  <140A 1250 kW  < 205A Current [A] Time SCR Switch-on Time

“Oil-free”. "Oil-free" means less cost! Reduced energy losses in the heat exchangers Compressors in parallel: optimum performance at partial loads Flooded evaporator: higher energy efficiency No oil changes or filter replacements: low maintenance costs No maintenance of the bearings: low maintenance costs

Flooded Evaporator. "Oil-free" means using flooded evaporator technology without limits. • Increased energy efficiency:  exchange coefficient  ΔT (water/refrigerant) • Reduced energy losses NO superheating  decreased pressure drops • Precise water temperature control “accumulation” effect of refrigerant inside the evaporator

Cooling with style. Lack of “physical” contact means high reliability increased energy savings. Wear and energy losses due to friction are eradicated.

Reduced dimensions. 1000 2000 3000 4000 5000 6000 330 630 950 1250 Models [kW] Weight [Kg] BCWC BRWC The BCWC unit is lighter and more compact than any other compressor with the same capacity featuring traditional technology.

Low noise. Extremely low noise levels Extremely flat spectrum Absence of vibrations 40 50 60 70 80 90 100 330 630 950 1250 Frequency [Hz] Noise power level BCWC BRWC BRWC - LN

Low noise. 40 50 60 70 80 90 100 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz Frequency [Hz] Noise power level BCWC - 630kW BRWC - 630kW BRWC - LN - 630kW Low noise. Screw compressor “oil-free” centrifugal

Competitive comparison BCWC Compressor/s “oil-free” centrifugal compressor Evaporator flooded evaporator with external separator Condenser Shell & tube Expansion Valve EEV as standard TECS-HF “oil-free” centrifugal compressor flooded evaporator with internal separator Shell & tube EEV as standard

Competitive comparison BCWC Compressor/s “oil-free” centrifugal compressor Evaporator flooded evaporator with external separator Condenser Shell & tube Expansion Valve EEV as standard QUANTUM “oil-free” centrifugal compressor flooded evaporator with internal separator Shell & tube EEV as standard

Competitive comparison Efficiency at full load

Competitive comparison Efficiency at partial load: ESEER

Competitive comparison Noise levels

BCWC Water-cooled water chillers with centrifugal compressor/s 300 – 1250kW