Frascold Two-Stage Semi-Hermetic Reciprocating Compressors
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Frascold Two-Stage Semi-Hermetic Reciprocating Compressors
PRODUCT DESCRIPTION
The Frascold Two-Stage Series comprises semi-hermetic reciprocating compressors developed for low-temperature and deep-freezing refrigeration systems.
The two-stage compression design combines a low-pressure stage and a high-pressure stage within one compact compressor body. The elimination of external interstage piping, optimized liquid injection and Frascold’s dedicated motor-cooling system contribute to high reliability, reduced installation space and quiet operation.
A liquid subcooler kit is available for all listed models and can be supplied separately or pre-installed. This listing covers selected S, 2V and 2Z models with nominal motor power from 3.7 to 29.8 kW.
KEY FEATURES
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Two-stage semi-hermetic reciprocating compressor
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Designed for low-temperature and deep-freezing applications
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Integrated low-pressure and high-pressure compression stages
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Compact design without external interstage piping
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Optimized liquid injection system
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Dedicated motor-cooling system
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Low sound and vibration levels
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Liquid subcooler kit available
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Part-winding-start motor configuration
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Weld-on suction and discharge valves
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Suitable for R404A, R507A, R448A and R449A
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Model selection supported through Frascold FSS3 software
AVAILABLE MODELS
| Model | Motor Power | LP/HP Cylinders | LP/HP Displacement at 50 Hz | Oil Charge | Net Weight |
|---|---|---|---|---|---|
| S5-26.16Y | 3.7 kW | 2 / 2 | 25.20 / 16.39 m³/h | 2.9 L | 120 kg |
| S7-27.19Y | 5.2 kW | 2 / 2 | 26.85 / 19.12 m³/h | 2.9 L | 122 kg |
| 2V10-42.29Y | 7.5 kW | 2 / 2 | 41.89 / 29.40 m³/h | 4.0 L | 173 kg |
| 2Z15-60.30Y | 11.2 kW | 4 / 2 | 58.81 / 29.40 m³/h | 7.2 L | 220 kg |
| 2Z20-72.36Y | 14.9 kW | 4 / 2 | 70.74 / 35.37 m³/h | 7.2 L | 225 kg |
| 2Z25-84.42Y | 18.6 kW | 4 / 2 | 83.77 / 41.89 m³/h | 7.2 L | 230 kg |
| 2Z30-102.51Y | 22.4 kW | 4 / 2 | 102.86 / 51.43 m³/h | 7.2 L | 239 kg |
| 2Z35-112.56Y | 26.1 kW | 4 / 2 | 112.11 / 56.05 m³/h | 7.2 L | 245 kg |
| 2Z40-123.62Y | 29.8 kW | 4 / 2 | 123.13 / 61.57 m³/h | 7.2 L | 250 kg |
ELECTRICAL DATA
Reference power supply: 380–420 V / 3 Ph / 50 Hz or 440–480 V / 3 Ph / 60 Hz, part-winding-start connection.
| Model | Maximum Operating Current | LRA – PWS | LRA – DOL |
| S5-26.16Y | 14 A | 35.5 A | 57.8 A |
| S7-27.19Y | 18 A | 47 A | 75 A |
| 2V10-42.29Y | 23 A | 53.9 A | 87.6 A |
| 2Z15-60.30Y | 31 A | 74.8 A | 117 A |
| 2Z20-72.36Y | 37 A | 107 A | 181 A |
| 2Z25-84.42Y | 45 A | 118 A | 203 A |
| 2Z30-102.51Y | 53 A | 133 A | 224 A |
| 2Z35-112.56Y | 60.2 A | 145 A | 239 A |
| 2Z40-123.62Y | 71.9 A | 159 A | 273 A |
CONNECTIONS
| Compressor Size | Suction Connection | Discharge Connection |
| S5 and S7 | 1 3/8 in / 35 mm | 7/8 in / 22 mm |
| 2V10 | 1 3/8 in / 35 mm | 1 1/8 in / 29 mm |
| 2Z15 to 2Z40 | 1 5/8 in / 42 mm | 1 3/8 in / 35 mm |
GENERAL TECHNICAL SPECIFICATIONS
| Item | Specification |
| Compressor Type | Two-stage semi-hermetic reciprocating compressor |
| Application | Low-temperature and deep-freezing refrigeration |
| Compression Stages | Low-pressure stage and high-pressure stage |
| Capacity Regulation | 100% |
| Standard Motor | Part-winding-start motor |
| Standard Power Supply | 380–420 V / 3 Ph / 50 Hz |
| Alternative Power Supply | 440–480 V / 3 Ph / 60 Hz |
| Lubricant | POE 32 cSt, subject to refrigerant and configuration |
| Refrigerants | R404A, R507A, R448A and R449A |
| Valve Type | Weld-on suction and discharge valves |
| Liquid Subcooler | Optional; separate or factory-installed configuration |
| Crankcase Heater | Recommended |
| Selection Software | Frascold FSS3 |
TYPICAL APPLICATIONS
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Frozen-food cold rooms
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Deep-freezing systems
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Food-processing facilities
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Slaughterhouse refrigeration
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Confectionery production
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Medical and pharmaceutical cold storage
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Industrial low-temperature refrigeration
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Refrigerated warehouses
MODEL SELECTION NOTICE
Cooling capacity and absorbed power cannot be determined from displacement alone. Final selection must be based on refrigerant, evaporating temperature, condensing temperature, suction-gas temperature, required cooling capacity and power supply.
Please confirm the exact operating point and required subcooler or liquid-injection configuration through Frascold FSS3 before ordering.
| Model |
S5-26.16Y, S7-27.19Y, 2V10-42.29Y, 2Z15-60.30Y, 2Z20-72.36Y, 2Z25-84.42Y, 2Z30-102.51Y, 2Z35 112-56Y, 2Z40 123-62Y |
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