PDRP-1001 Datasheet, PDF (48/56 Pages) Systemsensor advanced ideas. – Deluge - Preaction Control Panel

Appendix C: NFPA Standard-Specific Requirements
Local Energy Municipal Box
Local Energy Municipal Box
Using the 4XTM Transmitter Module for connection to a Local Energy Municipal Box.
• The Municipal Box circuit supervises for ground faults and opens (i.e. missing wire) but not for
direct short between two wires. It is not a power-limited circuit.
• This application is not suitable for separate transmission of sprinkler supervisory or trouble
conditions.
• Maximum loop resistance allowed for wiring from control panel to Municipal Box is 3 ohms.
FIRE
+ ^{Municipal Box Circuit}
–
TB1
Local Energy
Municipal Box
TBL
J1
J2
4XTM Transmitter Module
(activated polarities shown)
Figure 26 Municipal Box Connection
48
PDRP-1001 Instruction Manual PN 50734:D0 04/06/01