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Installation & Operation Manual
S&S Northern supply a range of remote gas detectors including carbon monoxide (CO), natural gas/methane (NG),
liquid petroleum gas (LPG) and also oxygen (O2) that are compatible with our range of Merlin control panels
connecting up to 12 detectors (control panel dependant) per cable run to monitor gas levels/hazards in safe areas.
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 manual – contact your supplier.
Rev: 19 06-20
Gas Detector
Safe Area Fixed Gas Detector
Installation, Operation & Maintenance
Please read this manual carefully and retain for future use.
Merlin Gas Detector
1
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Summary of Contents for S&S Northern Merlin S
- Page 1 Installation & Operation Manual Merlin Gas Detector Gas Detector Safe Area Fixed Gas Detector Installation, Operation & Maintenance Please read this manual carefully and retain for future use. S&S Northern supply a range of remote gas detectors including carbon monoxide (CO), natural gas/methane (NG), liquid petroleum gas (LPG) and also oxygen (O2) that are compatible with our range of Merlin control panels connecting up to 12 detectors (control panel dependant) per cable run to monitor gas levels/hazards in safe areas.
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Page 2: Table Of Contents
Installation & Operation Manual Merlin Gas Detector Contents Important Warning Statements ..................3 Installation .......................... 4 Typical Location & Positioning ...................... 4 Access & Mounting ......................... 4 Internal Board Overview ........................ 5 Wiring the Detector ......................... 5 BMS Output ............................. 5 Audible Alarm Switch ........................ -
Page 3: Important Warning Statements
Installation & Operation Manual Merlin Gas Detector Important Warning Statements Please take the time to thoroughly read these instructions which should be retained for future reference. Detectors are shipped pre-calibrated and configured. The expected lifetime of a gas sensor is 3-10 years upon initial power up dependant on your target gas and environmental factors. -
Page 4: Installation
Installation & Operation Manual Merlin Gas Detector Installation Typical Location & Positioning Our detectors should be installed in safe areas only 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, and ease of access should be accounted for to allow for any servicing, recalibration and other forms of maintenance. -
Page 5: Internal Board Overview
Installation & Operation Manual Merlin Gas Detector Internal Board Overview Be careful when creating access for cables – Damage to circuit boards will void any warranty! Any damage attempting to remove the circuit board parts may void any warranty! Wiring the Detector S-Panel (1000S / 1000SW+ / 1500S etc.) Power is supplied to a detector via the GDP terminal [+ / -] and using the ‘S’... -
Page 6: Audible Alarm Switch
Installation & Operation Manual Merlin Gas Detector Audible Alarm Switch There is a switch on the Detector circuit board. The user can choose whether to have an audible alarm when dangerous gas levels are detected. The alarm will continuously sound – there are no provisions to silence the alarm, gas levels must drop to a safe value for the alarm to stop. -
Page 7: General Maintenance
Installation & Operation Manual Merlin Gas Detector General Maintenance Cleaning Keep your gas detector in good working order - follow these basic principles; Remove any dust/debris from the outer enclosure regularly using a slightly damp cloth. Never use detergents or solvents to clean your device. ... -
Page 8: End Of Operational Life (Eol)
Installation & Operation Manual Merlin Gas Detector See below for recommended gas concentrations for bump testing your detector. Detector Type Bump Test Gas Response Time CO - Carbon Monoxide 400 - 500ppm (balance in air). <120s NG - Methane 0.6 - 0.8% BV (balance in air) <30s LPG - Liquid Petroleum Gas 0.3 –... -
Page 9: Specification
Installation & Operation Manual Merlin Gas Detector Specification General Product: Gas Detector Model(s): CO (Carbon Monoxide) NG (Methane/Natural Gas) LPG (Liquid Petroleum Gas) H (Hydrogen) O2 (Oxygen) Use: Indoor, Safe Areas (not to be used in potentially explosive atmospheres) Indicators (LED) Green (Power), Yellow (Pre Alarm) &... - Page 10 Installation & Operation Manual Merlin Gas Detector Page intentionally left blank Rev: 19 06-20...
- Page 11 Installation & Operation Manual Merlin Gas Detector Page intentionally left blank Rev: 19 06-20...
- Page 12 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: We recommend all Merlin gas detection equipment be commissioned by competent/trained engineers to ensure correct installation and operation.
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