CO2/Ammonia Freeze Package (CAFP)
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Applications:
Heating
Refrigeration

Partners: Johnson Controls

Contacts:

Alexander Cohr Pachai, Denmark
CO2/Ammonia Freeze Package (CAFP)
Description:

Under its product brand Sabroe, Johnson Controls has developed a freeze package optimized for industrial cascade systems and a high-pressure reciprocating compressor, to be used also in heat pump applications.

Basic specifications:

  • Length x Width x Height (mm): 5200-6700 x 2600-3200 x 2800-3200
  • Weight (kg): 8000-18000
  • NH3 charge (kg): 45-155
  • CO2 charge (l): 800-1650
  • based on a cascade system combining the advantages of CO2 on the low-temperature side and ammonia on the high-temperature side
Advantages:

  • Low power consumption: 45% less compared to single-stage systems with economisers; 5-15% compared to two-stage systems
  • Compact design: saves space, gives greater flexibility
  • Very small ammonia charge: installation of large-capacity, low-temperature plants with only limited refrigerant restrictions is possible
  • Clear separation of ammonia and CO2: eliminates risk of damage in production in case of leaks
  • Automatic oil recovery system in both circuits: only minimum maintenance required
  • Low operating costs
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