... . Imported Danfoss compressor, Tow compressors parallel connection, to reduce noise and improve the cooling temperature come to -86 steady. 9. 2 ... 7days data. 16. 72 hour battery back up for printer and controller display. 17. 4units Casters for easy handing 18. Mixture gas ... with R134a,R404a,R23,R24,N2,R600a and more, CFC free 19. Certificate:, ISO9001, ISO14001,ISO13485 20. Power ...