Danfoss launches Optyma Plus inverters

Danfoss-OptymaDENMARK: Danfoss has released inverter variable speed technology versions of its Optyma Plus packaged condensing units.

The Optyma Plus Inverter with variable speed scroll compressor and drive are said to deliver the best Seasonal Energy Performance Ratio (SEPR) on the market for refrigeration applications in medium temperatures for cooling capacities ranging from 2 to 9 kW.

Offering a wide stepless capacity modulation ranging from 30 to 100Hz, Optyma Plus Inverter enables tight temperature control to within ±0.3°C.

Danfoss inverter scroll technology is said to allow from 20 to 30 % higher energy efficiency for medium temperature refrigeration applications compared to fixed-speed or mechanically modulated condensing units.

The permanent magnet motor, inverter-driven modulation, intermediate compressor discharge valves, together with the micro-channel condenser are said to contribute to an SEPR of 3.84, a performance level certified by ASERCOM for R407F. Return on investment is said to come in about one year for applications operating 24 hours per day, 7 days a week.

Optyma Plus has been developed to operate with R404A alternatives R407A and R407F.

Danfoss

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