In order to further improve our website and our web based services, we`re using cookies. By visiting our website you agree to the usage of cookies. More information
-
Germany (de)
-
Europe
- Austria (de)
- Belarus (en)
- Belgium (fr)
- Bosnia-Herzegovina (en)
- Bulgaria (en)
- Croatia (en)
- Cyprus (en)
- Czech Republic (en)
- Denmark (en)
- Estonia (en)
- Finland (en)
- France (fr)
- Germany (de)
- Greece (en)
- Hungary (en)
- Iceland (en)
- Ireland (en)
- Italy (it)
- Latvia (en)
- Lithuania (en)
- Luxembourg (fr)
- Malta (en)
- Netherlands (en)
- Norway (en)
- Poland (en)
- Portugal (pt)
- Romania (en)
- Russia (ru)
- Serbia & Montenegro (en)
- Slovakia (en)
- Slovenia (en)
- Spain (es)
- Sweden (en)
- Switzerland (de)
- Turkey (en)
- Ukraine (en)
- United Kingdom (en)
-
America
- Argentina (es)
- Barbados (en)
- Belize (en)
- Bolivien (es)
- Bonaire, Sint Eustatius and Saba (en)
- Brazil (pt-br)
- Canada (fr)
- Canada (en)
- Caribbean (en)
- Chile (es)
- Colombia (es)
- Costa Rica (es)
- Cuba (es)
- Curacao (en)
- Dominican Republic (es)
- Ecuador (es)
- El Salvador (es)
- Grenada (es)
- Guatemala (es)
- Haiti (fr)
- Honduras (es)
- Jamaika (en)
- Mexico (es)
- Netherlands Antilles (en)
- Nicaragua (es)
- Panama (es)
- Paraguay (es)
- Peru (es)
- Puerto Rico (es)
- Puerto Rico (en)
- Sint Maarten (Dutch part) (en)
- Trinidad & Tobago (en)
- U.S.A. (us)
- Venezuela (es)
-
Asia
- Bahrain (en)
- Bangladesh (en)
- Brunei (en)
- China (zh)
- Hong Kong SAR of China (en)
- India (en)
- Indonesia (en)
- Iran (en)
- Israel (en)
- Japan (ja)
- Jordan (en)
- Kuwait (en)
- Lebanon (en)
- Malaysia (en)
- Maldives (en)
- Myanmar (en)
- Oman (en)
- Philippines (en)
- Qatar (en)
- Saudi Arabia (en)
- Singapore (en)
- South Korea (ko)
- Sri Lanka (en)
- Syria (en)
- Taiwan (en)
- Thailand (en)
- U.A.E. (en)
- Vietnam (en)
- Yemen (en)
-
Africa
- Algeria (fr)
- Angola (pt)
- Botswana (en)
- Cameroon (fr)
- Cameroon (en)
- Democratic Republic of Congo (DRC) (fr)
- Djibouti (fr)
- Egypt (en)
- Equatorial Guinea (es)
- Equatorial Guinea (pt)
- Equatorial Guinea (fr)
- Ethiopia (en)
- Ghana (en)
- Kenya (en)
- Lesotho (en)
- Libya (en)
- Madagascar (fr)
- Malawi (en)
- Mauritius (en)
- Morocco (en)
- Mozambique (pt)
- Namibia (en)
- Nigeria (en)
- Reunion (fr)
- Senegal (fr)
- Seychelles (en)
- Seychelles (fr)
- South Africa (en)
- Sudan (en)
- Swaziland (en)
- Tanzania (en)
- Tunisia (en)
- Uganda (en)
- Zambia (en)
- Zimbabwe (en)
-
Australia
-
- Australia (en)
- New Zealand (en)
-
Europe

OSNA series
OSN = Application for low temperature cooling
BITZER’s open screw compressors for use with NH₃ have been proving their worth on the market for many years. We offer these robust and efficient solutions for use on their own and in parallel operation with several compressors and a shared oil separator. The combination of open compressor and external standard motors makes the series exceptionally flexible and allows operation at different supply voltages. BITZER has the appropriate couplings and coupling housing as accessories in its portfolio, making it safe and easy to combine compressors with external standard motors. A significant improvement: the refrigerant circuit and electrical drive are separate, making maintenance and repair much simpler. To complement the open OS.A screw compressors, we’ve developed a complete portfolio of tried-and-tested accessories for use in large-scale commercial and industrial NH₃ refrigeration and air conditioning systems.
The OS.A95103 compressor marks the beginning of the new OS.95 series. The strengths of this new development include large volume flows up to 1,015 m³/h at 2,900 revolutions per minute, integrated control electronics, an optimised slider concept for seamlessly adjustable capacity control and Vi adjustment for maximum efficiency at every operating point.
ON THE NOTEPAD
The special attributes
- Optimised for parallel operation
- High system output
- Optimal capacity adjustment and minimal energy requirements under full- and part-load
- Combination of various compressor sizes
- Robust design
- Large bearings
- Coupling and coupling housing for direct drive with IEC motors
- Special NH₃ variant with adapted internal Vi for optimal efficiency
- OS53 .. 74
- High efficiency profile
- Efficient capacity control
- Economiser mode
- OS85
- Combination of proven OS technology with the innovative features of the CSH series
- OS85
- Slide control for seamless or stepped capacity control
- OS85
- Economiser with sliding suction position
- Effective even under part-load
- OS85
- Built-in oil management system
- Automatic oil stop valve
- Oil filter
- Oil monitor
Brochures
Operating instructions
*For further documentation please choose Product Type
Products
Technical Data TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
Technical Data OPEN IN SOFTWARE TO DOCUMENTATION
*Displacement in m³/h at 2900/3500 rpm