CO₂ Pump Station

Description

Johnson Controls has developed a pump station to use CO₂ as a secondary volatile refrigerant in supermarkets and a wide range of other applications. The unit can be used with primary side systems using natural refrigerants, including ammonia and hydrocarbons.

Technical Specifications

• Length x Width x Height (mm): 2100 x 800 x 2200
• Capacities: from 2 x 10 kW to 2 x 50 kW (larger types on request)
• Standard systems equipped with: 300 litre tank, pump, safety valves, controls, fully wired, with integrated internal heat exchangers
• Type: stand-alone unit ready to be connected to an existing refrigeration system, or as part of a package comprising the primary refrigeration system and the pump station

Options available

• Inverter drive for the pump
• Insulation
• Additional pump alternating with the first pump
• Shut off valves around the pump for easy service
• Evaporator/cascade heat exchanger for HFC, NH₃ or HC solutions
• High-temperature stage in one or two circuits
• Plant-in container
• Complete housed plant including high-temperature system with condenser ready to connect to the system

Advantages

• Reliability: running successfully in supermarkets since 1996
• Energy efficiency: saves energy compared to using one-phase secondary refrigerants
• Cost-efficiency: smaller refrigerant line size, absorbed power in pump is lower
• Low primary refrigerant charge of hydrocarbons or ammonia possible
• Easy installation: easy connection to primary circuit through integrated heat exchangers and additional valve stations