Aqua Leak Detection WG2 Instruction manual

The Aqualeak BREEAM Criteria Water Leak Detection Systems can be supplied either as two individual Type WG Cabinets or as one
combined Type WG2 Cabinet. The Data Sheet on the single zone WG System is attached and describes the system operation.
The WG System is comprised of three primary items: the Aqualeak WG Control Unit, the WaterGuard Module/s and the remote pulsed
turbine Water Meter/s. Where Valve Shutdown is required, the system would also be supplied with Solenoid Valve/s.
The Aqualeak WG2 BREEAM Criteria Water Leak Detection Control Unit holds the two complete systems in one cabinet, facilitating simpler
installation and mains power requirements. One System, marked EXTERNAL WATER PIPEWORK, monitors the water pipework between the
property boundary and the building. The other System, marked INTERNAL WATER PIPEWORK monitors the water pipework within the
building.
The WG2 Control Unit is provided with mounting holes via a key-hole fitting in the upper rear centre of the cabinet and two through-holes
adjacent to the lower cover screw holes, accessible once the lower cover has been removed.
The mains power is connected to the Mains Power Terminals on the WG PCB. Mains Terminals: Live : Earth : Neutral (Brown : Y/G : Blue).
Battery (if fitted) should be connected to the Battery Terminals with correct polarity Live + , Neutral - .
The PCB also has the terminals
to connect to the Water Meter
and the Valve (if fitted). This is
comprised of two sets of Grey/
White/Brown wires. The left
terminals are for the ‘Internal
Pipework’ and the right
terminals are for ‘External’
pipework.
The water meter is connected to
the terminals which have wires
coloured WHITE and BROWN.
These are not polarity conscious.
The GREY terminal is used for
connection to the valve if fitted.
For schematic diagram of how to
wire the valve/s, see separate
instructions. Valves should
ideally be fitted with a manual
bypass and should be exercised
regularly to prevent any buildup.
BREEAM CRITERIA WATER LEAK DETECTION SYSTEM Type WG2 - CONTROL PANEL CONNECTIONS
Mains Power Terminals
WG2 Control Unit
WaterGuard Modules
Battery Fuse
Battery Terminals
(if fitted)
Control Fuse
Reset Relay Outputs
Mains Fuse
Internal Alarm Outputs
Mains Terminals
Live : Earth : Neutral
Brown : Y/Gn : Blue
External Alarm Outputs
Indicator PCB
Internal Meter/Valve Connection Terminals
“EXTERNAL” Alarm Terminals
“INTERNAL” Alarm Terminals
External Meter/Valve Connection Terminals
Optional Battery
Internal Meter/Valve
Connection Terminals
External Meter/Valve
Connection Terminals
Please refer to separate sheet for connections if the unit is fitted with a Pulse Splitter
www.aqualeak.com 1 Silver Street, Gastard, Corsham, Wilts SN13 9PY T: 01249 715698 F: 01249 431 363
WG2 Dimensions: LxHXW: 26 x 14.5 x 29.5 cm

BREEAM CRITERIA WATER LEAK DETECTION SYSTEM Type WG 2 - SYSTEM CONNECTIONS
Grey
VALVE
White
WHITE
Brown
METER
Brown
METER
White
WHITE
Valve/Meter Connection Terminals
Some meter pulse
output units have four
wires. Only White and
Brown are used. Cut
or tie back the others.
Brown wire
to the meter
can be wired
direct to the
meter if
valve cap is
not suitable.
Turbine
Meter
Valve
Utilities Water
Meter & Pit External WG Meter (& Valve) Internal WG
Meter (& Valve)
Connections to Valve and Meter Connections to Meter only
Connect external cabling to
terminals in the control unit.
Left set of terminals is for
“Internal” and right set for
“External” monitoring.
External underground cable and pipe
WG2 SYSTEM SCHEMATIC DIAGRAM
BMS Terminals
Mains Power
Two Signal Cable
links to Turbines
Connections
to the Turbine
Meters should
be by 1mm sq
copper 3 core
signal cables
to a maximum
of 100m; for
distances up
to 200m use
2.5mm
screened. For
some systems
with Pulse
Splitters, four
core cable
may be
required.
Please refer to
separate sheet for
connections if the
unit is fitted with a
Pulse Splitter
www.aqualeak.com 1 Silver Street, Gastard, Corsham, Wilts SN13 9PY T: 01249 715698 F: 01249 431 363

Under BREEAM "One Credit is awarded where a Water Leak Detection System is specified or installed. The system must be
capable of identifying major leaks both inside and outside the building, and should cover all mains supplies to the building …
within the building and between the building and the site boundary."
Therefore, BREEAM requires two specific monitoring systems; the first to monitor the external supply between the boundary and
the stop-cock in the building; and the second fitted just after the stop-cock to monitor for leaks within the building. As the WG2
system uses a pulsed Water Meter, it qualifies for an additional credit under the Water Meter section of BREEAM.
The Aqualeak BREEAM Criteria Water Leak Detection
System is comprised of three primary items: the
Aqualeak WG Control Unit, the WaterGuard Module and
the remote pulsed turbine Water Meter.
To monitor the external pipework, the module to
monitor the external pipes is linked to a Turbine Water
Meter at the site boundary. The module to monitor
internal water supply is connected to a water meter just
inside the stopcock. The Controller should be wall
mounted adjacent to the stop-cock in the building and
will require linking by a 1mm sq copper 3 core signal
cable to the Turbine Water Meter in the external pit.
Cabling runs should not exceed 100m.
The Turbine Water Meter has BSP male threads at each
end. The Controller requires mains power supply, and
allowance must be made for cabling between the
Controller and Turbine Meter.
As the BREEAM Criteria does not require water shut-off,
no solenoid valve is provided with the system as
standard. However if a valve was fitted-and can be
ordered from us-the system can then either turn off the
water completely at a specified time or can be set to
switch off if a pre set flow volume is exceeded.
The Turbine Water Meter provides a pulse to the
controller at 10L increments. The minimum setting that
can stimulate an alarm, or turn the water off, is one
pulse, i.e. after 10L of water has flowed, the system
alarms/shuts the valve. This is adjustable upwards
using the controller in increments of 1 pulse (10L). If the controller detects excessive flow, the Controller can alarm audibly and/
or visually. The no-volt output relays activate simultaneously, and can send a signal to external remote repeat alarms, or a BMS
System or to an Automatic Telephone Dialling system. This is the signal which would operate the solenoid shut off valve if
required.
Under normal operating conditions the WG Controller shows two green lights: ‘System is Live’ and ‘System is Clear’. When a water
leak is detected, red LED on the Module flashes “Water Detected”. Simultaneously the two Alarm Change-over Relays activate
providing onward alarm signalling. Pressing the ‘Water On’ button on the module facia will silence the alarm and will return the
system to normal. If it is required that the ‘alarm state’ remains latched, pressing the Mute Alarm on the WG Controller instead
will silence the alarm but will leave the alarm latched. When required, pressing the ‘Water On’ button on the WaterGuard facia will
return the system to normal operation.
The WG Controller is provided with four wall mounting holes adjacent to the corner cover screws, no drilling of the cabinet
is required. The only connections required to the WG Controller are Mains Power, a link to the Water Meter, and any output
alarms. Mains Power Connections are made to the WG Control Unit and should be made to the terminals on the PCB marked
MAINS L (Live) E (Earth) and N (Neutral). 'Live' is fused with a 20mm 2amp ‘power’ fuse. The ‘24 V AC Control’ fuse is also
20mm and is rated at 1 amp. Connections to the Turbine Water Meter (and to any valve if fitted) would be to remote terminals
marked F C V. For connection to the Water Meter, only terminals C and F are used. These terminals are not polarity conscious.
If a valve is fitted, connections to the valve are to terminals C and V. Any Solenoid Valves required will be latching 5VDC, from
Aqualeak.
Remote output alarms should be connected to the WG Controller PCB Terminals marked ALARM. Both sets of Terminals are rated
240v AC 6amp, and provide (left to right) Normally Open, Common, or Normally Closed contacts. A RESET Relay rated 240V AC
2amp is provided which can be used by the BMS to ‘time/date stamp’ when the mute button had been pressed to indicate when
the alarm was acted upon, or to mute an external remote sounder. Please do not adjust the pot on the PCB marked SENSITIVITY.
BREEAM CRITERIA WATER LEAK DETECTION SYSTEM - INSTALLATION AND OPERATING MANUAL
WG1 Control Unit
Turbine Water Meter
WG1
Module
Meter Connection Terminals
Mains Power Terminals
Please refer to
separate sheet for
connections if the
unit is fitted with a
Pulse Splitter
www.aqualeak.com 1 Silver Street, Gastard, Corsham, Wilts SN13 9PY T: 01249 715698 F: 01249 431 363
Dimensions LxHxW: 20x8x15 cm

Basic programming instructions: METER BASED SYSTEMS
To access the menu hold down Set Up button
The arrow keys (< >) are used to navigate between menus (Settings, Guard, Log)
(+) and (-) keys are used to navigate up and down menus—use
Use the main Menu Map shown later to alter the desired setting
Example: To change the date:
•Press Set Up. The screen displays: SETTINGS MENU
•Press + . The screen displays: KEY LOCK OFF
•Press Set Up. You can now press + or –to change the Key Lock Setting to On if required. Press
Set Up to exit the editing mode once you have reached the correct Setting.
•Press + . The screen displays the date dd/mm/yy.
•Pressing Set Up allows you to edit the settings shown on the screen.
•Press (+ or -) up or down to change the date. Press the > arrow to move across the date
segments. Once you have reached the correct day/month/year, press Set Up. This exits the
editing mode.
•Press and hold Set Up for 3 seconds to return to normal display, alternatively pressing + will
navigate you through the rest of the Settings Menu, and using the Set Up key allows you to
edit the settings shown on the screen.
This process can be repeated for all changes in the Menu map.
An Engineer’s Menu is available for setting technical parameters:
In default mode the WaterGuard module may be set for a flow sensor (monitoring time) rather
than a water meter (monitoring water volume). This may require changing from ‘Time’ to ‘Pulse’.
Press + + + - and then the Set Up key
Scroll down using the pointer button to Meter Mode
Meter Mode needs to be changed from Time to Pulse. Use right arrow. >
When in the Engineer’s Menu make sure that the ALARM OUT ENABLED Menu is set to YES.
If this is set or changed to NO, then the alarm, lamp and mute will not work.
Do not change any other setting in engineers menu !
Press Set Up to exit the Engineers Menu.
PLEASE NOTE THAT ON THE WG2 SYSTEMS BOTH WG MODULES MUST BE SET !
To Change the quantity of water flowing above which the Alarm will be triggered:
Press Set-up. Screen reads: GUARD MENU
Press + Screen reads: MODE PERMANENT—To edit the mode press Set Up and use > to toggle
between Permanent, Daily, 7 Day and Weekend, press Set Up to exit editing, and use + to move
through the menu:
Press + Screen reads: HI GUARD 5 (number is quantity of pulses—multiply by 10 to calculate
litres). Press Set-up to edit pulse number, using +/- to change the number, press Set Up to exit
editing mode and set the guard.
BREEAM CRITERIA WATER LEAK DETECTION SYSTEM - INSTALLATION AND OPERATING MANUAL
www.aqualeak.com 1 Silver Street, Gastard, Corsham, Wilts SN13 9PY T: 01249 715698 F: 01249 431 363

BREEAM CRITERIA WATER LEAK DETECTION SYSTEM - OPERATION OF THE PULSE SPLITTER
PLEASE NOTE: When the Pulse Splitter is fitted to either the WG1 System or the
WG2 System, all meter and valve wiring is not to the PCB but is to the external
pre-wired terminals shown right. Wire colours at the meter on the pulse reader are
WHITE and BROWN and should be connected via the interlinking signal cable
(supplied by others) to the terminals in the WG Controller marked METER, to match
the colours White and Brown. Wire colours to the valve should be taken from the
terminals marked VALVE in the WG Controller, colours BLUE and GREY, and should
be taken via the interlinking signal cable (supplied by others) to the valve terminals
as indicated on the standard connection diagram. The pulse output connection to
the BMS are made to the terminals marked PULSE.
PLEASE NOTE THAT EACH PULSE EQUATES TO 10L OF WATER CONSUMED.
Pulse
OUT
to BMS
www.aqualeak.com 1 Silver Street, Gastard, Corsham, Wilts SN13 9PY T: 01249 715698 F: 01249 431 363