Non condensable gases in a refrigeration system damage and affect the sustainability of the installation. The undesirable effects of non-condensable gases in a cold system can be summarized in 5 points:
1. Higher condensation temperature than expected
2. Greater power consumption
3. Lower cooling capacity
4. Longer compressor running time than normal
5. More wear on the compressor because of the higher temperature
The non-condensable gases in a refrigeration system include air, hydrogen and nitrogen (by disintegration of ammonia). Also oil vaporizing occurs by decomposition of oil. By removing the non-condensable gases from the refrigeration system, the condensation temperature is lowered and thus the power consumption of the compressor motor. If the condensing pressure rises also the power consumption rises. If the condensation temperature rises with 1K, the energy consumption will rise about 4%.
Manual "de-gasing" is time consuming and not always effective because the place where non-condensable gases collect is different in each system. With Hansen the purging of non-condensable gases are automatically and easily removed from refrigeration systems working with ammonia or other refrigerants. Hansen purgers are compact units, working with the refrigerant from the system without an additional compressor.
The APM is a fully automatically controlled vent non-condensable gases. The APM is installed, wired, insulated and includes an automatic water bubler. The installation work of the APM purger is limited to the ½” solenoid valves and check valves, the liquid- and suction gas lines, water supply and drain pipes, 230V/50Hz power supply and wiring of the solenoid valves.
The APM is capable of purging up to 4 points, the piping is fully welded, the electrical connections are waterproof. The large evaporator surface and the natural circulation of the refrigerant is very effective and the purge capacity is larger than most other purgers. The APM is for the usual purge quantities suitable for larger installations.
Features:
The basic model of the auto purgers is the NEAP. The NEAP is a fully mechanical non-electrical Auto-Purger. The NEAP works just like the other Hansen purgers with the refrigerant of the main system. Unlike other non-electrical assemblies the NEAP will start up automatically. After opening the valves the purger will fill with refrigerant, cool down, process an air / gas mixture and will vent every non condensable gas.
Features:
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