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Installation & Operation Manual
At S&S Northern, we supply a full range of remote gas detectors including carbon monoxide (CO), natural
gas (NG) and liquid petroleum gas (LPG) that are compatible with our range of Merlin control panels.
The information contained within this manual should be referenced for typical installation and operation
only. For specific requirements that may deviate from the information in this guide – contact your supplier.
Rev: 18 03-20
Merlin Gas Detector
Installation & Operation Manual
Please read this manual carefully and retain for future use.
Merlin Gas Detector
1
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Table of Contents
Summary of Contents for S&S Northern Merlin CO Detector
- Page 1 Installation & Operation Manual Merlin Gas Detector Merlin Gas Detector Installation & Operation Manual Please read this manual carefully and retain for future use. At S&S Northern, we supply a full range of remote gas detectors including carbon monoxide (CO), natural gas (NG) and liquid petroleum gas (LPG) that are compatible with our range of Merlin control panels.
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Page 2: Table Of Contents
Installation & Operation Manual Merlin Gas Detector Contents INSTALLATION ................... 3 Planning ........................... 3 Typical Location and Positioning................3 Fixing ..........................4 Board Overview ......................4 Wiring the Detector ....................... 5 Audible Alarm Switch ....................5 Testing the system ......................5 Trouble Shooting ...................... -
Page 3: Installation
Installation & Operation Manual Merlin Gas Detector INSTALLATION Planning Our detectors should be installed in areas at risk of gas leaks e.g. over boilers, valves or meters. Take in to account the design of the air flow patterns within the zone area. Detectors should be installed in the correct orientation, as recommended by the manufacturer, and ease of access should be accounted for to allow for any bump tests, recalibration and other forms of maintenance. -
Page 4: Fixing
Installation & Operation Manual Merlin Gas Detector GDP2: Two zones / GDP4: Four zones / ‘S’ panel range: 1 Zone. Fixing Unpack all the parts! 1. Carefully remove the rear cover from the unit by unscrewing the hex screws located at the bottom of the case. -
Page 5: Wiring The Detector
Installation & Operation Manual Merlin Gas Detector Wiring the Detector Building Management Systems (BMS) If you are connecting to Merlin ‘S’ range you will need to use [NC/COM] terminals as an alarm relay. These are volt free connections to building management systems. If you are using our ‘GDP’... -
Page 6: Trouble Shooting
Installation & Operation Manual Merlin Gas Detector Trouble Shooting Fault. Possible Cause/Correction. Incorrect wiring. Detector not responding. Exceeded zone detector capacity. Sensor exceeded expected life span. LED flashing and alarm beep. Sensor fault. Contact your supplier Specification Product: Gas Detector Model: CO / NG / LPG / H2 Power (Green),... -
Page 7: Operation
Installation & Operation Manual Merlin Gas Detector OPERATION First Power Up On connecting power, the detector enters ‘sensor stabilisation’ phase for approximately 60 seconds – during this period the device is not yet ready for gas detection. Power Detector is powered when green LED is on. ... -
Page 8: Bump Testing
Installation & Operation Manual Merlin Gas Detector Other gases and substances to avoid; Corrosives (i.e. chlorine & hydrogen chloride); Alkali metals; Basic or acidic compounds; Silicones; Tetraethyl lead; Halogens and halogenated compounds. A detector may visually appear in good order, but its sensitivity can be inhibited by external factors. - Page 9 Installation & Operation Manual Merlin Gas Detector NOTES Rev: 18 03-20...
- Page 10 Installation & Operation Manual Merlin Gas Detector NOTES Rev: 18 03-20...
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Page 11: Important Warning Statements
Installation & Operation Manual Merlin Gas Detector IMPORTANT WARNING STATEMENTS Please take the time to thoroughly read this user’s guide which should be retained for future reference. The expected lifetime of gas sensor elements is 3-10 years upon initial power up dependant on your target gas and environmental factors. -
Page 12: Installation Details
Installation & Operation Manual Merlin Gas Detector Installation Details Please pass this manual to the system owner / user. Date of Installation: Installation Location: Organisation: Stamp/ Signature of the installer: Replacement Date: For all correspondence: S&S Northern Head Office Tel: +44(0) 1257 470 983 Fax: +44(0) 1257 471 937 www.snsnorthern.com info@snsnorthern.com...