Alarms and Alarm Settings
When an alarm is triggered the buzzer will start beeping, the 
red alert LED will start flashing, the top status bar will turn red, and the alarm details will be shown on the main screen.
If multiple alarms have been triggered at the same time, the main screen will cycle through them in sequence as shown by the “Alarm 1 of 2” text at the top right of the screen.
The alarm buzzer can be silenced on the main screen by pressing the 
mute key or button.
The alarm(s) can be cleared to restore water flow using the middle “Clear Alarm” button.
Alarms can only be cleared when their root cause is resolved. For example, if a leak sensor still detects water the system will not allow you to clear the alarm and resume water flow without resolving the issue or disabling the leak sensor.
If an alarm is disabled in the settings menus while the alarm is active, the alarm will clear but the valve will not immediately open. Return to the main menu by pressing the mute key and use the middle ‘open valve’ button to restore water flow.
General Alarms
Leak Sensor Alarm
The leak sensor alarm relates to the optional external leak sensor. If the resistance measured across the sensor drops below the given threshold, the alarm will trigger. A higher resistance threshold will make the system more sensitive, so a lower threshold is recommended for humid environments to prevent nuisance alarms.
Sensitivity should be set based on the specific sensor attached to the system. Please check the manuals for the leak sensor you are using for appropriate settings.
The default threshold is 200 kOhm, which should work for many of our leak sensors.
To clear a leak sensor alarm and restore water flow, either the cause of the leak needs to be rectified, or the leak sensor needs to be disabled in the settings menu.
Temperature Alarm
The temperature alarm is triggered when the ambient air temperature around the control unit drops below the threshold. This is to protect your property from leaks caused by burst pipes due to freezing – when this alarm has been activated, inspect all pipework to check for any damage.
The default threshold is 5°C.
Valve Unit Alarms
Each connected valve unit has its own independent alarms, but any alarm will cause all connected valve units to close and shut off water supply.
Below is a quick reference for the valve alarm settings.
| Alarm | Enabled (default) | Default Threshold | Range | Additional Settings (default) |
|---|---|---|---|---|
| Leak Sensor | Yes | 200 kOhm | 20-500 kOhm | EOL resistor (disabled) |
| Flow Rate | Yes | 25 L/min | 1-60 l/min | |
| No Flow | No | 24 hours | 15 mins – 24 hours | |
| Flow Duration | Yes | 30 minutes | 1-60 mins | |
| Flow Volume | No | 1000 l in 60 minutes | 10-1000l in 1-60 mins | |
| Temperature | Yes | 5°C | 0-25°C |
Flow Rate Alarm
The flow rate alarm monitors the instantaneous rate of water flow, and triggers when this rate exceeds the threshold. This is useful for detecting sudden surges of water from burst pipes, and should be set above the maximum expected water usage in the property to avoid nuisance alarms.
The default setting is 25 litres per minute.
No Flow Alarm
The no flow alarm triggers when flow has not been detected for a set length of time.
This can be useful for properties that may be vacant for extended periods but is not a substitute for isolating and draining the system. This does not trigger the audible buzzer. The timer resets when any water is detected passing through the flow sensor.
The no flow alarm is disabled by default. When enabled, the default duration for the no flow alarm is 24 hours.
Flow Duration Alarm
The flow duration alarm triggers when continuous flow is detected for more than a set length of time.
This is useful for detecting when a tap has been left open, or a pipe has burst. Note that the standard flow sensor has a minimum flow reading of approximately 1.0 l/min, which means that dripping taps and slow leaks may not be detected. The default setting is 30 minutes.
Flow Volume Alarm
The flow volume alarm tracks the cumulative volume of water used over a set period. It triggers when the volume of water used exceeds the limit in a set length of time.
This makes it useful for detecting intermittent leaks or unusually high water usage that may not trigger a flow rate alarm. Care should be taken when adjusting this setting to allow for normal water consumption while still detecting issues.
The flow volume alarm is disabled by default. The default setting when enabled is 1000 litres in 60 minutes.