RLE LDZ4 - Manual (Page 9)

User Guide: LDZ4 Chapter 2: Connections & Settings
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CHAPTER 2: CONNECTIONS & SETTINGS
2-1 LEAK DETECTION BOARD
The LDZ4’s connectors, found at the bottom of the following photograph, are labeled TB4 through TB7.
The switches on the board are labeled SW1 and SW2. The unit has four dials that are used to adjust the
sensitivity for each zone. They are labeled R2 trough R5.
Figure 2-1: LDZ4 Leak Detection Board
2-1.1 TB8 – Power
The LDZ4 connects to a 24VAC/24VDC power supply using TB8, a three position connector labeled 24V.
TB7 –
Zone 1
Input TB1 –
Summary
Relay TB4 –
Zone 4
Input TB3 –
Leak
Relay TB2 –
Fault
Relay TB5 –
Zone 3
Input TB6 –
Zone 2
Input P1 –
Power
Input TB8 –
Power
Input
SW1– Relays
and Alarm R4 –
Zone 1
Sensitivity Adjustments
R2 –
Zone 4 R3 –
Zone 3 SW2 –
Not Used R4 –
Zone 2