20HP Frascold Refrigeration compressor S20.56Y

Technical data:
Cylinders:4
Displacement @ 50 Hz m3/h [50Hz] 56
Displacement @ 60 Hz m3/h [60Hz] 67.2
Motor version[1]:1
Motor power (HP):20
Motor power (kW):15
Motor voltage at 50 Hz[2] V/ph/Hz 380-420V/3/50Hz PWS
Motor voltage at 60 Hz[2] V/ph/Hz 440-480V/3/60Hz PWS
PWS partition:50-50
DOL bridge bars:Standard
Capacity control: CC + RSH :100%-75%-50%-25%
MRA, maximum operating current at 400V/50Hz and A 38.4
LRA, maximum starting current at 400V/50Hz and A 87.5
LRA, maximum starting current at 400V/50Hz and A 136.2
Frequency min Hz 25
Frequency max[3] Hz 87
Protection device
INT69® Diagnose
Electric box class protection IP56
Maximum pressure HP bar 30
Maximum pressure LP bar 20.5
Oil type[4] POE32
Oil charge (3/4 of sightglass) l 2.9
Lubrication type
Centrifugal
Suction valve (SV) inch 1⅝
Discharge valve DV inch 1 ⅛
Net weight kg 132
Max Length mm 550
Max Width mm 405
Maximum height mm 405
Rubber mounts diameter[2] mm 50
Rubber mounts height mm 50
Rubber mounts shore sh 55
Sound power level (-10/45, R404A)[5] dB(A) 78.5
Sound pressure level @ 1m (-10/45, R404A)[5] dB(A) 70.5
Compressor body material
Cast Iron
[1]Motor version: 1 = high and middle temperature, all refrigerants; 2 = low and middle temperature, all refrigerants; 3 = ECOinside, low
temperature, only R134a and R1234ze
[2] Others available on request
[3] Maximum frequency depends on the working condition: see FSS3 (Frascold selection software)
[4] Different kind of oil available on request