Can you braze with nitrogen?
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Furthermore, how do I purge my AC with nitrogen?
Break the system vacuum with nitrogen introduced at the side port of the core tool. Break the vacuum with nitrogen to that equivalent to atmospheric pressure (760,000 microns) then purge nitrogen through the system at 1-3 psig. from the high to the low side letting it vent out the open port of the core tool.
Additionally, what is purging in HVAC? From Wikipedia, the free encyclopedia. An air purge system is used to flush electrical control equipment with clean air before it is turned on. This ensures that the functionality of the equipment is not affected or damaged by the contaminants from the surrounding environment.
Similarly, what kind of nitrogen is used in HVAC?
The two main areas nitrogen gas is used within HVAC are for brazing and pressure testing copper coil. Nitrogen is used during the brazing process to purge oxygen from the brazed surface.
What does nitrogen purging do?
Put simply, nitrogen purging is an air-cleansing method used to ensure that no trace of harmful contaminants or gases is left in the atmosphere. The ultimate goal here is to re-stabilize the environment to prevent an explosion. That is why the industrial use of nitrogen in the oil and gas industry is so common.