Chapter 1: System wiring
12
ZP3-ECU Extinguishing Control Unit Installation and Commissioning Manual
Connecting the ZP3-ECU to ZP3-ECUS status units
Connect to the ECUS as shown in Figure 6 below.
Figure 6: ZP3-ECUS connections
Notes:
• If all key switches are on MANUAL then systems will be on MANUAL.
• If one key switch is on AUTOMATIC then systems will be on AUTOMATIC.
• Place jumpers L1, L2, and L3 on end-of-line extinguishing status unit display
board.
• Remove jumpers L1, L3, and L4 on the ECU display board when status units
are used.