SERIES SP SB

Product catalog summary

Overview
This document outlines the technical specifications and details for the SP and SB series of semi-hermetic reciprocating compressors, used in commercial and industrial refrigeration and specific air-conditioning projects.

SP Series
The SP series includes 34 models of semi-hermetic reciprocating compressors, known for high quality and reliability. They feature 2, 4, 6, or 8 cylinders, with nominal motor power ranging from 3 to 70 Hp and displacement from 17.5 to 222 m3/h at 50 Hz. These compressors are designed for a wide range of applications, with improvements for energy efficiency and noise reduction.

SB Series
The SB series consists of two-stage semi-hermetic reciprocating compressors, offering high efficiency, robustness, and compactness. They achieve final discharge pressure through two compression stages, resulting in lower discharge temperatures and higher efficiency. The series includes models with 4 or 6 cylinders, with nominal motor power from 12 to 30 Hp and displacement from 43 to 102.9 m3/h at 50 Hz.

Technical Specifications

Motor Size: Available in full size (H) and small size (L) for SP series.
Lubrication: Pressure lubrication with oil pump or splasher lubrication without oil pump for SP series.
Nominal Motor Power: Expressed in Hp, with specific models using POE oil indicated by an 'E' suffix.
Displacement: Measured in m3/hr at 50/60 Hz.
Number of Cylinders: SP series offers 2 to 8 cylinders; SB series offers 4 to 6 cylinders.
Weight and Oil Charge: Detailed for each model, with oil charge measured in dm3.
Crankcase Heater: Specifications for voltage and power consumption provided.
Discharge and Suction Line Dimensions: Internal diameters specified in mm and inches.
Capacity Control Steps: Various modulation capacities available depending on the model.
Standard Motor: Part winding options available with specific voltage and frequency requirements.
Starting and Running Current: Detailed for each model, including starting current (PW/DOL LRA and Y/D LRA) and maximum running current (FLA).

Specifications
The document provides detailed specifications for compressors, including starting current, maximum absorbed power, and maximum running current, with a voltage tolerance of ±10%.

SP Series
This series is compatible with R22 and chlorine-free refrigerants like R407C, R134a, R404A, and R507 without mechanical changes. It is suitable for air-conditioning and refrigeration applications at mid or low evaporating temperatures, with a condensing temperature up to 80°C for R134a and evaporating temperatures down to -40°C for R22, R404A, or R507. Options for "full size" (H) or "small size" (L) electric motors are available.

SB Series
The SB series is suitable for R22, R404A, and R507 refrigerants and can be equipped with an optional subcooler for enhanced efficiency. The lubrication system includes an oil pump and a Venturi internal oil recovery system, with high-efficiency oil filters and differential pressure switches for monitoring. The motor has an electronic protection device for temperature control.

Application Limits
The document outlines application limits for various refrigerants (R407C, R404A, R507, R134a, R22) in terms of evaporating and condensing temperatures, specifying conditions for standard applications, additional cooling, and superheat limits.

Performance Data
Performance data for different models under various conditions (e.g., Tev = -35°C, Tcond = 40°C) are provided, including cooling capacity (Q0), power absorbed (Pa), and coefficient of performance (COP).

Design and Maintenance
The compressors are designed for flexibility, efficiency, optimized lubrication, reliability, and safety. They are compact and easy to install and maintain, with features like reed valves for low-temperature applications.

Catalog excerpts

Reciprocating compressors Compressori frigoriferi alternativi

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Series SP Series SB COMPRESSOR - COMPRESSORE COMPRESSOR TYPE / TIPO COMPRESSORE Semi-hermetic / Semi-ermetico SERIES - SERIE Reciprocating compressor / Compressore a pistoni Reciprocating compressor double stave Compressore a pistoni a doppio stadio N° OF CYLINDERS - N° DI CILINDRI SERIE SP SERIES: 2 - 4 - 6 - 8 SERIE SB SERIES: 4 - 6 MOTOR SIZE - TAGLIA MOTORE (ONLY SP SERIES / SOLO SERIE SP) Full size electrical motor - motore elettrico di taglia piena Small size electrical motor - motore elettrico di taglia ridotta LUBRICATION - LUBRIFICAZIONE (1) (ONLY SP SERIES / SOLO SERIE SP) Pressure...

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3 SP SERIES The so many applications in which the semi-hermetic reciprocating compressors are involved comprise the commercial / industrial refrigeration field and, although more rarely, also specific air-conditioning projects. Our SP series compressors fit perfectly most of such a wide variety of applications. Although already known for its high quality and reliable reciprocating compressors, RefComp has continued to invest in research and new technology, so as to improve constantly also this range. Which is now characterized by extremely high efficiency and silentness; can be used in enlarged...

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H (FULL SIZE MOTOR) MODEL SP Nominal motor power Potenza nominale motore Displacement at 50/60 Hz Volume Spostato a 50/60 Hz N° of cylinders / N° di cilindri Weight / Peso Oil charge / Carica olio Crankcase heater Resistenza carter Discharge line, internal Ø Raccordo mandata, Ø interno Suction line, internal Ø Raccordo aspirazione, Ø interno Capacity control steps Modulazione capacità Standard motor (part winding) Motore standard (part winding) Starting current PW/DOL LRA Corrente di spunto PW/DOL LRA Starting current Y/ D LRA Corrente di spunto Y/ D LRA Max running current FLA Massima corrente...

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H (FULL SIZE MOTOR) SP4HF / SP4HN L (SMALL SIZE MOTOR) SP4LF /SP4LN (1) Voltage tolerance / Tolleranza sul voltaggio ± 10%

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MODEL SB Nominal motor power Potenza nominale motore Displacement at 50/60 Hz Volume Spostato a 50/60 Hz N° of cylinders / N° di cilindri Weight / Peso Oil charge / Carica olio Crankcase heater Resistenza carter Discharge line, internal Ø Raccordo mandata, Ø interno Suction line, internal Ø Raccordo aspirazione, Ø interno Standard motor (part winding) Motore standard (part winding) Starting current PW/DOL LRA Corrente di spunto PW/DOL LRA Max absorbed power (kW) Max potenza assorbita (kW) Max running current FLA Massima corrente di funzionamento FLA Part Winding - 230 V - 150 W - 50/60 Hz mm/...

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FLEXIBILITY FOR A WIDE RANGE OF APPLICATIONS FLESSIBILITÀ PER UN AMPIO CAMPO D’APPLICAZIONE SP SERIES SERIE SP Utilizzabili sia con R22 che con i refrigeranti non clorurati R407C, R134a, R404A o R507, senza alcuna modifica costruttiva; This series can be used with R22, and with the chlorine-free refrigerants R407C, R134a, R404A and R507 as well without making it necessary any mechanical changes. Specificatamente sviluppati per impiego nel campo del condizionamento e della refrigerazione a medio-basse temperature: fino ad 80 [°C] di condensazione per applicazioni con R134a o -40 [°C] di evaporazione...

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Series SP Series SB R404A - R507 Application limits / Limiti di applicazione R404A - R507 Limits refer to full load operation / I limiti si riferiscono a funzionamento a pieno carico 1 = Standard applications (25 [°C] suction gas temperature) Applicazione standard (25 [°C] temperatura del gas in aspirazione) 2 = Additional cooling / Raffreddamento addizionale 3 = Additional cooling + 20 [K] max DT suction gas superheat Raffreddamento addizionale + 20 [K] max di surriscaldamento gas in aspirazione R407C Application limits / Limiti di applicazione R407C 70 CONDENSING TEMPERATURE [°C] Limits refer...

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9 R22 Application limits / Limiti di applicazione R22 Limits refer to full load operation / I limiti si riferiscono a funzionamento a pieno carico 1 = Standard applications (25 [°C] suction gas temperature) Applicazione standard (25 [°C] temperatura del gas in aspirazione) 2 = Additional cooling / Raffreddamento addizionale 3 = Additional cooling + 20 [K] max DT suction gas superheat Raffreddamento addizionale + 20 [K] max di surriscaldamento gas in aspirazione 4 = Additional cooling + liquid injection LCM / Raffreddamento addizionale + iniezione di liquido (modulo LCM) (Not applicable for SP8H…SP8L...

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R404A - R507 Application limits / Limiti di applicazione R404A - R507 70 CONDENSING TEMPERATURE [°C] Limits refer to full load operation / I limiti si riferiscono a funzionamento a pieno carico Suction gas superheat / Surriscaldamento gas aspirato = 20 [°C] R22 Application limits / Limiti di applicazione R22 60 CONDENSING TEMPERATURE [°C] Limits refer to full load operation / I limiti si riferiscono a funzionamento a pieno carico Suction gas superheat / Surriscaldamento gas aspirato = 20 [°C]

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Qo = cooling capacity / Potenza frigortfera resa [kW] Pa = input power / Potenza elettrica assobita [kW] Tev = evaporating temperature / Temperatura di evaporazione [°C] T cond = condensing temperature / Temperatura di condensazione [°C] Liquid subcooling / Sottoraffreddamento liquido = 5 [K] Suction gas superheat / Surriscaldamento gas asplrato = 10 [K] For data at different working conditions please refer to RefComp LEONARDO selection program Per I corrispondenti valorl in condizioni di lavoro different! si consult! il software di selezione Refcomp LEONARDO Subcooling by means of subcooler...

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