Bitzer Compressor Open Type / Bitzer Type II Technical Data SI IP Displacement ( min. compressor speed) 2, 19 m3/ h 77, 3 CFH Displacement ( max. compressor speed) 4, 52 m3/ h 159, 6 CFH No. of cylinder x bore x stroke 2 x 40 mm x 30 mm 2 x 40 mm x 30 mm Allowed speed range 485 .. 1000 485 .. 1000 Motor pulley 90, 110, 130, 150, 180 90, 110, 130, 150, 180 V-belts ( DIN 2215) 1 x 13 1 x 13 Weight 18 kg 39, 7 lb Maximum pressure ( LP/ HP) 19 / 23, 0 bar 275 / 333 psi Connection suction line 12 mm / 1/ 2' 12 mm / 1/ 2' Connection discharge line 12 mm / 1/ 2' 12 mm / 1/ 2' Connection cooling water -- -- 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, 65 dm3 22, 88 fl oz