Bitzer Compresor Open Type / Bitzer Type III Technical Data SI IP Displacement ( min. compressor speed) 4, 04 m3/ h 142, 7 CFH Displacement ( max. compressor speed) 9, 42 m3/ h 332, 7 CFH No. of cylinder x bore x stroke 2 x 50 mm x 40 mm 2 x 50 mm x 40 mm Allowed speed range 430 .. 1000 430 .. 1000 Motor pulley 90, 110, 130, 150, 180 90, 110, 130, 150, 180 V-belts ( DIN 2215) 1 x 13 ( 1 x 17 Option) 1 x 13 ( 1 x 17 Option) Weight 22 kg 48, 5 lb Maximum pressure ( LP/ HP) 19 / 23, 0 bar 275 / 333 psi Connection suction line 16 mm / 5/ 8' 16 mm / 5/ 8' Connection discharge line 12 mm / 1/ 2' 12 mm / 1/ 2' Connection cooling water R 3/ 8' R 3/ 8' Oil type R134a / / R404A / / R507A tc55° C: BSE55 ( Option) tc55° C: BSE55 ( Option) Oil type R22 R22 ( R12 / / R502) B5.2 ( Standard) B5.2 ( Standard) Oil charge 0, 9 dm3 31, 67 fl oz .