Ziton ZP3-ECU Installation And Commissioning Manual page 13

Mounting instructions
The main board is supplied with two screws and two spring washers for
mounting. The earth lug from the wiring loom must be earthed as shown in
Figure 3 below to ensure the effectiveness of the surge suppression board.
Mount the main board as follows:
1. Align the main board chassis mounting slots with the lower studs of the box.
2. Insert the main board into the box so that the main board chassis rests on the
studs.
3. Insert the mounting screws, spring washers, and the free earth lug of the
wiring loom, and then tighten the screws.
Note:
Do not disassemble the circuit boards from the chassis.
Figure 3: Mounting diagram
ZP3-ECU Extinguishing Control Unit Installation and Commissioning Manual
Chapter 1: System wiring
5