Screw Compressor CSW - CSW7573-70(Y)
The compact screws of the new CSW series are optimised for use in R134a liquid chillers operating under low saturation discharge temperatures. As a result, they are compatible with systems with water cooled condensers, process cooling and systems with air cooled condensers operating under moderate climatic conditions. Thanks to their targeted development for these applications, their efficiency under full-load – and especially under part-load – was significantly increased. Additionally, the application limits under low saturation discharge temperatures were greatly expanded. Therefore, this series of compressors boasts ESEER/IPLV* values which greatly surpass the conventional international standards for compact screw compressors.
- High efficiency profile
- Seamless or closely stepped capacity control
- Shortest installed length in its output class
- Shut-off valves and connections within the compressor contour CSW95: Intake connection on motor cover
| Type | Displacement | Weight | Max. pressure (LP/HP) | Connection suction line | Connection discharge line | Oil type R407C | Oil type R134a | |
|---|---|---|---|---|---|---|---|---|
| 2900 RPM 50 Hz | 3500 RPM 60 Hz | |||||||
| SI | 258 m³/h | 311 m³/h | 520 kg | 19 / 28 bar | 76 mm - 3 1/8'' | 64 mm - 2 5/8'' | BSE170-L (Standard) | B320SH (Standard) |
| IP | 9117 CFH | 10989 CFH | 1147 lb | 275 / 400 psi | 76 mm - 3 1/8'' | 64 mm - 2 5/8'' | BSE170-L (Standard) | B320SH (Standard) |
Extent of delivery (Standard)
| Type | Enclosure class | Oil heater | Oil separator | Oil filter | Discharge gas temperature sensor | Start unloading | Capacity Control - 4-step | Capacity Control - infinite | Built-in check valve | Motor protection | Oil charge |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SI | IP54 | 200 W (Standard) | Standard | Standard | Standard | Standard | 100-75-50-25% (Standard) | 100-25% (Standard) | Standard (FI) | SE-E1 (Standard), SE-E3(Standard for 660-690V) | 15,0 dm³ |
| IP | IP54 | 200 W (Standard) | Standard | Standard | Standard | Standard (FI) | 100-75-50-25% (Standard) | 100-25% (Standard) | Standard | SE-E1 (Standard), SE-E3(Standard for 660-690V) | 527.9 fl oz |
Available Options
| Type | Oil level switch | Discharge shut-off valve | Suction shut-off valve | Shut-off valve for ECO with muffler | Bridges for DOL start | Vibration dampers | Motor protection |
|---|---|---|---|---|---|---|---|
| SI | min / max OLC-D1-S (Option) | Option | Option | Option | Option | Option | SE-i1 (200-690V) |
| IP | min / max OLC-D1-S (Option) | Option | Option | Option | Option | Option | SE-i1 (200-690V) |
Motor data
| Type | Motor voltage (more on request) | Max operating current | Winding ratio | Starting current (Rotor locked) |
|---|---|---|---|---|
| SI | 380-415V PW-3-50Hz | 123.0 A | 50/50 | 290.0 A D / 485.0 A DD |
| IP | 440-480V PW-3-60Hz UL | 123.0 A | 50/50 | 290.0 A D / 485.0 A DD |