SB Series – SB6-1600~3000 (Semi-hermetic Two-Stage Piston Compressor, 6-cylinder)
Refcomp S.r.l. SB Series – SB6-1600~3000 (Semi-hermetic Two-Stage Piston Compressor, 6-cylinder) — Low-temperature industrial refrigeration (freezing tunnels, cold storage) down to approx. -40 °C; R22/R404A/R507 systems.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Check valve plates and valve reeds for wear, cracking or carbon deposits; replace at manufacturer-recommended intervals
Inspect and change crankcase oil at prescribed intervals; verify correct oil type (POE or mineral) and check oil level sight glass
Verify crankcase heater function before startup and after extended shutdowns to prevent refrigerant migration and liquid slugging
Check suction and discharge pressure and compare against expected values for operating conditions; investigate deviations promptly
Inspect shaft seals and gaskets for refrigerant leaks using electronic or UV leak detection methods
Check motor winding resistance and insulation resistance (Megger test) to detect moisture ingress or incipient winding failure
Inspect and clean suction strainer / filter to prevent contamination ingress into cylinder bores and valve gear
Verify oil differential pressure protection (oil pressure switch) is functional and set within manufacturer specification
Type-general inspection and maintenance points for this equipment category — not model-specific.
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