Advantage-

Efficiency Advantage:

• Two stage compressor design
• Optimized impeller designs
• High efficiency, refrigerant cooled motors
• Inbuilt variable frequency drive
• Flooded design evaporators
• Oil free compressor maximises chiller efficiency

Oil Free Advantage:

• An ASHRAE study to determine the average quantity of oil as a percentage of refrigerant in older chillers found the average to be 12.88%.
• The study determined that even 3.5% of oil corresponded to an 8% efficiency loss.
• Oil-free design of TurboLev chillers results in heat exchanger tubes without the oil film which is a characteristic of chillers using oil-lubricated compressors, resulting in high efficiency of heat transfer throughout the working life of the chiller.

Current Advantage:

• Starting Amps - 2 Ampere as against 200 ~500 A of conventional chillers
• There is gradual increase in the voltage until the DC bus reaches the up-trip voltage
• Combination of soft start function and variable speed drive combined, Limits inrush current at Start up

Unloading Advantage:

• Combination of Inlet Guide Vane and VFD control
• Excellent stability at lower loads
• Active surge control - avoid surging by appropriate movement of shaft by using inbuilt surge control algorithm
• Electronic expansion Valve provides superior refrigerant flow control over a range of operating conditions
• Provides excellent part load efficiency due to permanent magnet motors and variable speed operation

Speed Advantage:

• High speed allowing for size and weight reduction
• Magnetic bearings with no friction increases life of the compressor
• Lower vibrations levels
• The compressor speed adjusts automatically to match the load and current operating conditions so that optimum efficiency is gained
• High speed shaft - Maximum RPM 48,000

Reliability Advantage:

• Chillers are designed to offer very high reliability during the entire life span of chiller
• Reliability built into the design of every component of the chiller
• Magnetic bearings ensure contactless operation and zero wear and tear of moving parts
• Oil-free operation eliminates the lubrication system and parts replacement & maintenance activities related to the system
• The rotor shaft is held in position with ten separately controlled electromagnetic cushions which continually change in strength to keep the shaft centrally positioned
• Sensors monitor the position of the shaft over 6 million times a minute while Radial and Axial Bearings keeps the rotor suspended
• Fail-safe provision of sensors maintains reliability in operation

Coast Down Mechanism

• Within 0.5 of a micro-second, the motor becomes a generator to power the bearings to a controlled coast-down. The onboard capacitors have enough power to fully support the bearing system during the switch from motor to generator mode.
• Shaft rests on back-up bearings, made of composite material.

Heat Exchangers

• Internally and externally enhanced tubes for high heat transfer coefficients
• Options of alternative materials – Cupro-Nickel, SS & Titanium for sea water / corrosive applications
• Heat exchangers designed, manufactured & tested in accordance with ASME, certified welders
• Inspection and testing at every stage
• Option of heat exchangers with ASME U stamping / PED certifications

Motor and Electronic Cooling System

• To maintain SCR temperature within safe range (40 deg C to 55 deg C), liquid level sensor is provided inside condenser bottom which ensures sufficient liquid level in condenser and continuous liquid flow to the compressor cooling line which further cools motor stator and IGBT.

Quiet Advantage:

• Only one moving part, no friction
• The chiller becomes quieter as it uploads

Operation Advantage:

• A user-friendly, 15” touch screen HMI with 1280 x 800 dpi resolution provides the operator with essential information about operating parameters, alarms and trips.
• IoT enabled, to collect operating data, web-based monitoring, alarm pre-alerts etc. which improves overall uptime

Performance Advantage:

• All Chillers factories run-tested as standard, on AHRI Certified Test Facility
• Factory operational test at full load design conditions
• Can offer witness testing at full load / part load points - ensures correctness of capacity and efficiency