GEA Service ‒ Keeping it running
GEA Ammonia Dryer
A sensible supplement to your refrigeration system. The Ammonia Dryer removes water from the refrigerant cycle and makes the perfect addition to your ammonia refrigeration system along with filters and purgers.
Functionality of the GEA Ammonia Dryer
The ammonia dryer heats the aqueous ammonia, boiling the ammonia out of the water. It can be done either with an electric or hot gas heater. The distilled ammonia flows out of the dryer and is fed back into the separator. At the end of the cycle, the controls start the next filling and distillation process. Only after the water concentration in the container sump reaches the defined value, will the cycle end and the manual drain valve open. The remains which may contain sludge in addition to aqueous ammonia are directed to the prepared canister and then disposed of. Signal lights on the operator panel provide information about the relevant operating status of the dryer.
| Type | Input power
(kW) | Dimensions (mm) | Weight
(kg) | ||
| L | W | H | |||
| 150 H¹) | 0.2 | 2200 | 750 | 1000 | 500 |
| 150 E²) | 1.8 | 2200 | 750 | 1000 | 500 |
¹) hot gas heating, ²) electric heating
Impact of water in the refrigerant circuit
A refrigeration plant can have water levels of approximately 2% to 5% within a few years despite regular care. Due to the very different evaporating temperatures of water and ammonia, even very slight increases in water concentrations may increase the evaporating temperature of the ammonia water mixture. If the suction pressure alters the evaporating temperature of the aqueous ammonia, i.e. the intended temperature in the cooling chambers can no longer be achieved. This effect is compensated through lowering the suction pressure which in turn compromises the capacity of the compressor. To guarantee the specified cooling capacity, the operating hours of the compressor need to be increased, raising the operating costs for the refrigeration system. In addition, the water in the ammonia circuit causes corrosion as well as the oil to age faster and accelerates sludge formation in the refrigeration system. To prevent overmoisturizing over your refrigeration system we thus recommend using the GEA Grasso Ammonia Dryers.
Learn more with GEA RTSelect – our product selection and configuration tool.
Downloads
Related Products
GEA Grasso SP2
The high performer - GEA two-stage screw packages.
GEA Grasso SPduo
Best efficiency with all loads - GEA screw packages with two parallel-mounted compressors.
GEA Purger
The GEA Purger removes non-condensable gases from your refrigeration system, maximizing system efficiency.
GEA Grasso M packages
Total Cost of Ownership redefinied - Your top choice for cost effectiveness over the entire product lifetime.
Service Products
GEA Ammonia Dryer
The GEA Ammonia Dryer removes water from the refrigerant cycle and makes the perfect addition to ammonia refrigeration systems along with filters and purgers.
GEA Purger
The GEA Purger removes non-condensable gases from your refrigeration system, maximizing system efficiency.
GEA Compressor Conversion Kit (GCCK)
Update your existing screw compressor packages
PR-OLEO® Premium-Quality Ammonia Refrigeration Oils
PR-OLEO® ammonia oils are the natural choice to optimize industrial cooling and heating applications operating with reciprocating or screw compressors.
GEA Omni Retrofit Panel
The intuitive touch for screw and piston compressor control. powerful, yet approachable. Cerebral, yet intuitive. Sophisticated, yet simple. Simply – GEA Omni.
GEA Service Kits for screw and reciprocating compressors
Welcome to the world of simplicity with GEA Service Kits for screw and reciprocating compressors. Our mission is clear - to make your experience with original spare parts seamless and your operations smoother than ever. "Take it easy, use a kit" is not just a tagline – it is a promise we deliver on.
GEA Insights
Shifts in food packaging: 4 trends
Thermoforming has long played a central role in food packaging. Now it is facing a major shift. As regulations tighten, materials evolve and costs rise, form fill seal lines must do more than run reliably – they now shape how food stays fresh, affordable and recyclable. Take a look at the key thermoforming trends informing the food packaging and delivery landscape.
Fruit storage at Betko: Control from peak harvest to global delivery
From the orchards of the Cape to store shelves across 40 countries, the South African packhouse Betko has built a business on freshness, timing and reliability. With GEA’s controlled atmosphere refrigeration technology, the company can now store apples and pears for up to 14 months and cut energy consumption by 20%, with a partnership of more than 30 years at the heart of it all.
