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Installation & Operation Manual
Auto Reset Switch
The panel has a built-in auto reset feature. There is a dipswitch located on the circuit board labelled [AUTO RESET].
This is factory set in the 'Off' position i.e. when power is restored after a power cut or loss, the panel has to be
restarted manually. When enabled, the system will restart automatically when power is restored.
AUTO SWITCH
OFF
ON
Zone 1 - 4 Set-Up Switches
There are dipswitches located on the WLMZ4 circuit board labelled [ZONE 1] and [ZONE 2].
This is factory set in the 'Off' position. For each of the water detection zones you are using please ensure that the
relevant zone has being enabled. The zone you are not using should be left disabled.
ZONE 1/2/3/4 SWITCH
OFF
ON
Factory Set Condition
SWITCH
BMS
AUTO RESET
ZONE 1
ZONE 2
ZONE 3
ZONE 4
Trouble Shooting
Fault.
Water Leak Monitor not responding.
WLMZ4 Panel not responding.
Operation
Initial Power-Up (Commissioning)
On connecting mains power, press reset to start. The system will close the solenoid valve when an emergency stop
has been pressed, water leak has been detected or any alarm signal has been triggered.
When the system is connected to the mains power supply, the Power LED will illuminate RED.
Rev: 2 02-24
CONDITION
Panel has to be restarted manually following a power cut/loss and/or alarm.
Panel will automatically restart when power is restored.
CONDITION
Water leak detection zone disabled.
Water leak detection zone enabled.
CONDITION
OFF
OFF
OFF
OFF
OFF
OFF
Possible Cause/Correction.
Incorrect wiring
o
Zone switches not properly configured
o
Incorrect Wiring
o
No Power
o
Auto-Reset not properly configured
o
Merlin WLDZ4
6
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