Frascold semi-hermetic compact screw compressors
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CX Frascold semi-hermetic compact screw compressors for refrigeration, air conditioning, heat pump, process cooling

CX SERIES Frascold CX compact screw compressors range has been designed to grant the maximum efficiency, reliability and flexibility. Currently the range consists of 160 models, which cover not only a wide cooling capacity range but also an extremely various application range (air conditioning, process cooling, heat pumps and even refrigeration at medium evaporating temperatures). All models are characterized by: High efficiency Inverter matching Built-in or external VFD makes it possible to increase drastically the efficiency at part loads. All possible configurations grants the highest...

CX SERIES Frascold compact screw compressor can be used with the most common refrigerant gases in a very wide envelope and according to the working conditions it is possible to identify two main configurations for assuring the highest efficiency: CXH Vi = 3.1 suitable for high compression ratios (typically air-cooled units) CXW Vi = 2.3 suitable for low compression ratios (typically water-cooled units) To widen even further the application envelope it is possible to adopt an oversized motor (motor 2) as shown in the working limits of following pages. Models identified with “CX_I” are those...

MODEL DESIGNATION Compressor Family series Compact Screw Compressor Application (pressure ratio) Suitable for external VFD+ACVR With built-in VFD+ ACVR For parallel compound and/or flooded type evaporator Nominal motor power 50 ÷ 310 Hp

EXTENT OF DELIVERY PWS or SDS electric motor thermally protected: admissible power supply 380 ÷ 460 Vca (-15% +10%), 45…65 Hz Electronic control module INT69FRYL Diagnose with monitoring, protection, diagnostics, alarm history record and communication functions (AC 50-60 Hz 115120V 230-240 V +/- 10% 3VA). Integrated 3-stage oil separator Thermostatically controlled crankcase heater POE 170 cSt oil charge Oil filter with replaceable cartridge 2 sight glasses for min and max oil level control Discharge shut-off valve with soldering connection and integrated check valve Suction flange with...

Compressor model Cooling capacity with R134a (*). Cooling capacity with R22 (*). * 2°C evaporating temperature; 50°C condensing temperature; 10K superheat; 5K liquid subcooling. Working limits Full load operation (100%) - Motor 1 Full load operation (100%) - Motor 2 With oil cooler or liquid injection Suction gas superheating 10K - without liquid subcooling.

Compressor model Cooling capacity with R134a (*). Cooling capacity with R22 (*). * 3°C evaporating temperature; 38°C condensing temperature; 1K superheat; 5K liquid subcooling. Working limits Evaporating temperature (°C) With oil cooler Full load operation (100%) With oil cooler or liquid injection Suction gas superheating 10K - without liquid subcooling.

ESEER IPLV Cooling capacity with R134a, 50Hz (*). Cooling capacity with R134a, from 30 to 70 Hz (*). * 2°C evaporating temperature; 50°C condensing temperature; 10K superheat; 5K liquid subcooling. Working limits 50Hz - Suction gas superheating 10K - without liquid subcooling. Compressor model

ESEER IPLV Compressor model Cooling capacity with R134a, 50Hz (*). Cooling capacity with R134a, from 30 to 70 Hz (*). * 3°C evaporating temperature; 38°C condensing temperature; 1K superheat; 5K liquid subcooling. Working limits 50Hz - Suction gas superheating 10K - without liquid subcooling.

ESEER IPLV Compressor model CXHIT5 Cooling capacity with R134a, 50Hz (*). Cooling capacity with R134a, from 30 to 70 Hz (*). * 2°C evaporating temperature; 50°C condensing temperature; 10K superheat; 5K liquid subcooling. Working limits Suction gas superheating 10K - without liquid subcooling.

ESEER IPLV Compressor model CXWIT5 Cooling capacity with R134a, 50Hz (*). Cooling capacity with R134a, from 30 to 70 Hz (*). * 3°C evaporating temperature; 38°C condensing temperature; 1K superheat; 5K liquid subcooling. Working limits Suction gas superheating 10K - without liquid subcooling.

Patent Pending (automatic continuos Vi regulation) The geometry of the discharge port of a screw compressor determines its built-in volumetric ratio (Vi). For each refrigerant and for each pressure ratio there is just one Vi that maximizes the isentropic efficiency, as it is clearly showed in the following picture. Since the geometry of the discharge port is generally fixed, the market offers different series of compressors to suit applications with different nominal pressure ratios. For instance Frascold offers two different main ranges of traditional screw compressors: the CXH and the CXW...

Patent Pending (automatic continuos Vi regulation) ACVR Control Card Green led activated as the optimum Vi has been set Yellow led activated as the Vi value decreases Green led activated as the device is fed 220 V / 1 ph / 50 Hz, 8 VA Yellow led activated as the Vi value increases and also when the set point is reached The device is mounted in the compressor electric box. The standard solenoid valve coils have 230 V / 1 ph / 50 Hz power supply, however the ACVR can manage also other kind of voltages of the solenoid valve coils.

CXH_1 / CXHP_1 models - High compression ratios - Motor 1 CXH01- / CXHP01- Product specification Nominal motor power Displacement (m3/h) Weight (kg) Oil charge (POE 170 cSt) Discharge line Suction line Start method CXH_2 / CXHP_2 models - High compression ratios - Motor 2 Product specification Nominal motor power Displacement (m3/h) Weight (kg) Oil charge (POE 170 cSt) Discharge line Suction line Start method

CXH_1 / CXHP_1 models - High compression ratios - Motor 1 Product specification Discharge line Suction line Start method Nominal motor power Displacement (m3/h) Weight (kg) Oil charge (POE 170 cSt) CXH_2 / CXHP_2 models - High compression ratios - Motor 2 Product specification Nominal motor power Displacement (m3/h) Weight (kg) Oil charge (POE 170 cSt) Discharge line Suction line Start method