The Bitzer Two-Stage Compressor Condensing Unit for Cold Storage is designed for low-temperature and deep-freezing applications where stable cooling performance and reliable operation are required.
Equipped with a Bitzer two-stage reciprocating compressor, the unit divides the compression process into two stages, making it ideal for very low evaporating temperatures. It is widely used in blast freezers, freezing tunnels, deep-freezing cold rooms, frozen food storage, and industrial low-temperature refrigeration.
Core Advantages
Excellent Low-Temperature Performance
The two-stage compression process divides the total compression ratio into two stages, making the compressor suitable for demanding low-temperature applications.
It is particularly suitable for cold room temperatures from approximately -30°C to -45°C, where conventional single-stage systems may experience higher discharge temperatures and reduced cooling capacity.
Better Energy Efficiency
Under suitable low-temperature operating conditions, two-stage compression can provide better energy efficiency than conventional single-stage systems.
This makes it a suitable choice for 24-hour cold storage and continuous deep-freezing applications, helping reduce long-term operating costs.
Reliable Compressor Design
The compressor features an optimized suction passage and valve design for stable low-temperature operation. Optimized dynamic balancing helps reduce vibration and noise.
The semi-hermetic construction allows convenient maintenance, while PTC motor temperature protection and INT69 protection help protect the compressor during abnormal operating conditions.
Stable Cooling Capacity
The two-stage compression system helps maintain stable refrigeration capacity at low evaporating temperatures.
A liquid subcooling option can also be provided to further improve refrigeration capacity and system efficiency.
Applications
The Bitzer Two-Stage Compressor Condensing Unit is ideal for:
· Blast freezer rooms
· Freezing tunnels
· Deep-freezing cold rooms
· Cold storage below -30°C
· Frozen food storage
· Meat and seafood freezing
· Fish and poultry freezing
· Industrial low-temperature refrigeration
· Low-temperature process cooling
Technical Parameters
Item | Specification |
Compressor | Bitzer Two-Stage Semi-Hermetic Reciprocating Compressor |
Compressor Type | Two-Stage Reciprocating |
Condenser | Air-Cooled |
Application | Low-Temperature & Deep-Freezing |
Typical Cold Room Temperature | Approx. -30°C to -45°C |
Refrigerants | R404A / R507A / R22 |
Compressor Protection | PTC / INT69 / High & Low Pressure Protection |
Liquid Subcooling | Optional |
Application | Blast Freezer, Freezing Tunnel, Cold Storage, Industrial Refrigeration |
Actual refrigeration capacity, compressor model, evaporating temperature, condensing temperature, and refrigerant selection should be determined according to the specific project requirements.