IBHS supply a full range of remote gas detectors and thermal links to compliment the Merlin range of panels.
The Natural gas detectors should be located approximately 30cm from the ceiling and at detection will go into alarm at 10% of the low explosion level. This will trigger isolation of the power supply to the solenoid and as such isolation of the gas supply.
This can then be rectified by resolving the leak, allowing the sensor head to clear and resetting the attached Merlin panel. The Carbon Monoxide Detector is normally situated approximately 1 meter from ground level as Carbon Monoxide is a denser gas. When the sensor head detects carbon monoxide at a level exceeding 50ppm for over 4 minutes the attached system will trigger into the alarm state. This is resettable by rectifying any gas leak, allowing the sensor head to clear and restarting the Merlin panel.
LPG detectors are fitted at approximately 50cm from ground height in order to detect any LPG build up. The detector should be installed at low level as LPG build up occurs from the ground upwards due to the dense nature of the gas. At 10% of the low explosion level the detector will trigger the attached Merlin system causing an alarm state and instant isolation of the gas valve. This can only be reset by finding the source of the build up, allowing the sensor head to clear, and resetting the attached Merlin panel.