Installation & Operation Manual Merlin WLDZ4
Rev: 2 02-24
4
Installation
Typical Application, Location & Positioning
The Merlin WLMZ4 is a 4-zone water detection panel which can be used in many applications such as factories,
shopping centres, boiler houses and most commonly
–
server rooms. It can be used with up to 12 Merlin Water Leak
Detection Monitors (3 monitors per zone terminal) for detecting water leaks.
The controller panel can be integrated with, but not limited to, a BMS (building management system), external
alarms and remote emergency shut-off buttons.
The control panel should be located in an accessible area for both status observation and alarm purposes.
Access & Mounting
Unpack all the parts!
Designed for surface mounting, it must be installed by a licensed, insured contractor or competent person.
Carefully remove the front cover from the unit by unscrewing the four
bolts located at each corner. To do this
–
use the socket wrench
provided. Mark the four screw holes located on the back of the
enclosure to the wall and ensure the wall surface is flat to prevent base
distortion.
After executing the mounting and the connections
–
replace the front
cover and insert the security caps over the four bolts.
Access to the interior of the panel, when carrying out any work, must be conducted by a competent person.
Before carrying out any work ensure local regulations and site procedures are followed.
We recommend all Merlin water detection equipment and systems are commissioned by a competent/trained
engineer to ensure correct installation and operation. Contact S&S Northern for more information.
Internal Board Overview
1.
100-240VAC Mains power Input
2.
100-240VAC Water Solenoid Valve Output.
3.
24VDC Water Leak Monitors Supply (Zone 1)
4.
24VDC Water Leak Monitors Supply (zone 2)
5.
24VDC Water Leak Monitors Supply (Zone 3)
6.
24VDC Water Leak Monitors Supply (zone 4)
7.
General Alarm input
8.
NOT USED
9.
NOT USED
10.
BMS output contacts
11.
24VDC Sounder/ Strobe alarm
12.
Switch - BMS Selection & Auto Reset
13.
Switch - Zone 1/2/3/4 enable/disable
Note:
Terminal blocks are plug/socket type and may be removed to ease wiring.
Be careful when creating access for cables
–
Damage to circuit boards will void any warranty!
Water leak Monitors are sold separately.
