Pete, in your article you wrote :QuoteThe next task for Williams was to reconfigure two Early Ammonia Services (EAS) jumpers, in order to connect the channel 2B cooling system to the TTCR. This task involved de-mating the first jumper, FH-01, from its M9 male connection, venting all the nitrogen from it with a nitrogen vent tool, and then connecting it to the M10 male connector. The FH-02 jumper was then connected to the M9 male connector.I think the Nitrogen Vent Tool's goal is to vent ammonia with nitrogen, not to vent nitrogen with nitrogen. Am I right ?
The next task for Williams was to reconfigure two Early Ammonia Services (EAS) jumpers, in order to connect the channel 2B cooling system to the TTCR. This task involved de-mating the first jumper, FH-01, from its M9 male connection, venting all the nitrogen from it with a nitrogen vent tool, and then connecting it to the M10 male connector. The FH-02 jumper was then connected to the M9 male connector.
My understanding is the FH-01 jumper was previously purged/filled with Nitrogen. The Nitrogen Vent Tool is connected to the free QD to vent the jumper to vacuum (remember QDs are also valves, which only open when connected to something) before they could connect it to the ammonia loop.