Screw Compressor CSH - CSH7573-90(Y)
The new CSH series is based on the proven design elements of the innovative BITZER compact screws, which are recognized as a benchmark around the world. They were developed with respect to universal application in air cooled liquid chillers and heat pumps. Besides their known attributes, the compressors are distinguished by further improvements to energy efficiency under full- and part-load conditions. Additionally, the application limits were greatly expanded both in terms of low saturation discharge temperatures and high pressure ratios (heat pumps) – without compromising operating reliability.
- Adjustment of the internal volume ratio (under full- and part-load) based on the extended range of applications
- Reduction of internal flow losses
- Optimisation of the oil management system
- Additional cooling for extreme operating conditions through developed direct liquid injection or external oil cooling with actively controlled oil circulation level
| Type | Displacement | Weight | Max. pressure (LP/HP) | Connection suction line | Connection discharge line | Oil type R1234yf/R1234ze(E)/R450A/R513A | Oil type R134a/R407C/R404A/R507A/R407A/R407F | Oil type R22 | |
|---|---|---|---|---|---|---|---|---|---|
| 2900 RPM 50 Hz | 3500 RPM 60 Hz | ||||||||
| SI | 258 m³/h | 311 m³/h | 535 kg | 19 / 28 bar | 76 mm - 3 1/8'' | 54 mm - 2 1/8'' | BSE170 (Standard) | BSE170 (Standard) | B320SH (Standard) |
| IP | 9117 CFH | 10989 CFH | 1180 lb | 275 / 400 psi | 76 mm - 3 1/8'' | 54 mm - 2 1/8'' | BSE170 (Standard) | BSE170 (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 | Liquid injection with integrated nozzle | Bridges for DOL start | with sound jacket | Vibration dampers | Motor protection |
|---|---|---|---|---|---|---|---|---|---|
| SI | min / max OLC-D1-S (Option) | Option | Option | Option | Option | Option | Option | Option | SE-i1 (200-690V) |
| IP | min / max OLC-D1-S (Option) | Option | 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 | 162.0 A | 50/50 | 423.0 A D / 686.0 A DD |
| IP | 440-480V PW-3-60Hz UL | 162.0 A | 50/50 | 423.0 A D / 686.0 A DD |