breeam criteria water leak detection system type wg2 ... · the aqualeak breeam criteria water leak...

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


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


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


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


breeam criteria water leak detection system type wg2 ... · the aqualeak breeam criteria water leak...

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