Si entiendo bien, cuando el detector de fuga palpa la presencia de líquido, suenan las alarmas y se activan los relés de fuga y de recapitulación. El relé de recapitulación recopila los sucesos y los muestra en forma de resumen.
Esta es una conclusión que saco de la referencia anexa, a ver si te sirve
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The Fenwal LDZ4 is a complete monitoring system that detects and reports the presence of water and other
conductive liquids. The LDZ4 uses Fenwal's patented leak detection cable to monitor four individual zones. When
a conductive liquid comes in contact with the sensing cable, an alarm sounds and the leak relay and the summary
alarm relay activate........
2-2.1.5 TB1: SUMMARY RELAY
This is the Summary Relay output terminal block (Form C). A status LED is located above the relay, which will
indicate the state of the relay (on/off). This relay can be configured as supervised or unsupervised, latched or
unlatched. Connect the Leak Relay wires to TB1 as follows:
• TB1-1 Summary alarm normally open (NO)
• TB1-2 Summary alarm common (C)
• TB1-3 Summary alarm normally closed (NC)
http://www.argotec.com/docs/57458n.pdf