Bitzer semi-hermetic compressor BS4 S4N-8.2Y-40P 400V with subcooler mounted
More in this category: Reciprocating piston
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Description
2-step semi-hermetic reciprocating piston compressor 4 to 44 kW 2nd generation
With its 2nd generation 2-step compressors, BITZER is setting new standards in technology and performance for enhanced low temperature applications.
This series is the result of intensive research based upon many ...
2-step semi-hermetic reciprocating piston compressor 4 to 44 kW 2nd generation
With its 2nd generation 2-step compressors, BITZER is setting new standards in technology and performance for enhanced low temperature applications.
This series is the result of intensive research based upon many years of experience in the construction of exceptionally economical and solid reciprocating piston compressors.
With regard to the changing requirements for using alternative refrigerants, many aspects of these compressors have been further developed and specially optimised for operation with HFCs R404A and R507A.
The experience gained from parts that have been tried and tested of many years was drawn upon in order to offer an exceptionally robust design for a wide range of applications.
The gas flow and service valves have been specially tuned for low temperature operation. In combination with a 2nd generation driving mechanism and motor designed to be as effective as possible, an even better cost effectiveness compared to conventional low temperature systems has been achieved.
Just one model series for chlorine-free HFC refrigerants and CFCs.
Changing over to HFC refrigerants:
• Use a polyolester oil approved by BITZER
• (“Y” suffix in the type designation).
• Adjust expansion value for intermediate cooling to the HFC refrigerant.
Features
- Stabile Ventilplatten-Konstruktion
- Ventile aus schlagzähem Ventilfederstahl
- Leise und schwingungsarm
- 4- und 6-Zylinderbauweise mit optimiertem Massenausgleich besonders laufruhig
- Druckölschmierung
- mittels reversibler Zahnradpumpe
- Elektro-Anschlusskasten ...
- Stabile Ventilplatten-Konstruktion
- Ventile aus schlagzähem Ventilfederstahl
- Leise und schwingungsarm
- 4- und 6-Zylinderbauweise mit optimiertem Massenausgleich besonders laufruhig
- Druckölschmierung
- mittels reversibler Zahnradpumpe
- Elektro-Anschlusskasten IP54
- Optional IP66
- Elektronischer Motorschutz
- Thermische Überwachung mit PTC-Sensoren
- Integriertes Differenz-Druckentlastungsventil
- Kältemittel-Einspritzung für Zwischenkühlung
- entweder mit mechanischem Expansionsventil
- oder speziell für R22-Betrieb mit elektronisch geregeltem CIC-System
Scope of delivery
- Kältemittel-Unterkühler montiert
Sonderzubehör (optional)
- Motor-Schutzeinrichtung mit Zusatzfunktionen (INT389)
- Ölsumpfheizung
- Öldifferenzdruck-Schalter
- Öl-Serviceventil
Accessories / Replacement parts
-
Crankcase heater
-
Electronic oil pressure safety switch
-
Liquid subcooler
-
Motor protection
-
Oil differential pressure switch
-
Oil pressure safety switch
-
Oil servicing valve
-
Option: Refrigerator oil BSE55 with R134a, tc > 70 °C
-
Pressurised gas temperature sensor
-
Refrigerator oil
Technical data
Notes
- The rated power is not identical to the max. motor power. Observe the max. operation current / max. power input when selecting contactors, leads and fuses (“electrical data”). Contactors: Category AC3
LP low-pressure stage
HP high-pressure stage - Motor for part winding, Y/Δ design as well as other voltages and currents upon request
- Data for compressors with voltage range 380 .. 420 V (220 .. 240V) based on average value of 400 V (230 V).
Conversion factors:
380 V (220 V) 0.95
420 V (240 V) 1.05
