FAQ - Oil-Free Chillers

Question 1

What is an oil-free chiller and how does it work?

Accepted Answer

An oil-free chiller uses compressors with magnetic levitation bearings, completely eliminating lubricating oil from the system. The compressor rotor 'floats' in a magnetic field, eliminating mechanical friction. This results in greater energy efficiency, less maintenance and extended lifespan.

Question 2

What are the energy savings of an oil-free chiller?

Accepted Answer

Oil-free chillers with magnetic levitation can save up to 40% energy compared to conventional chillers. Savings are even greater at partial loads, where IPLV can reach 0.25 kW/TR. For a 300 TR chiller operating 8,000 h/year, this can represent savings of $60,000-100,000/year.

Question 3

Is an oil-free chiller recommended for data centers?

Accepted Answer

Yes, oil-free chillers are ideal for data centers for several reasons: high efficiency at partial loads (data centers rarely operate at 100%), quiet operation, soft start without current spikes, high reliability and lower maintenance requirements.

Question 4

What is the lifespan of a magnetic levitation chiller?

Accepted Answer

Oil-free chillers have a lifespan exceeding 25 years. Since there is no mechanical contact in the bearings, there is no wear. The compressor can operate for over 100,000 hours without major overhaul, while conventional compressors need overhaul every 40,000-60,000 hours.

Question 5

What is the maintenance cost of an oil-free chiller?

Accepted Answer

Maintenance cost is 50-70% lower than conventional chillers. There are no oil changes, oil filters or separators. Maintenance is limited to periodic inspections, heat exchanger cleaning and electrical component checks.

Question 6

Can oil-free chillers use eco-friendly refrigerants?

Accepted Answer

Yes, oil-free chillers are compatible with low GWP refrigerants such as R-1234ze (GWP=7) and R-515B (GWP=293), in addition to traditional R-134a. This helps companies achieve sustainability goals and certifications like LEED.

Oil-Free Chillers

Main Features

Available Versions

Benefits

Superior Energy Savings

Reduced Operating Cost

Ideal for Data Centers

Sustainability

Applications

Frequently Asked Questions

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