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Installation & Operation Manual
S&S Northern provide a range of detection panels which can be used in many applications such as factories, car
parks, shopping centres and boiler houses. The GDP2X can be used with up to eight (8) X range gas detectors in a
single cable run for monitoring and detecting gas in zones considered safe including CO, LPG and methane.
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.
GDP2X - IOM Iss: 7 03-21
MERLIN GDP2X
Safe Area Gas Detector-X Controller
Installation, Operation & Maintenance
Please read this manual carefully and retain for future use.
Merlin GDP2X
1
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Table of Contents
Related Manuals for S&S Northern MERLIN GDP2X
Summary of Contents for S&S Northern MERLIN GDP2X
- Page 1 Installation & Operation Manual Merlin GDP2X MERLIN GDP2X Safe Area Gas Detector-X Controller Installation, Operation & Maintenance Please read this manual carefully and retain for future use. S&S Northern provide a range of detection panels which can be used in many applications such as factories, car parks, shopping centres and boiler houses.
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Page 2: Table Of Contents
Installation & Operation Manual Merlin GDP2X Contents Important Warning Statements ................... 3 Installation ..........................4 Typical Application, Location & Positioning ..................4 Access & Mounting ..........................5 Internal Board Overview ........................5 Board Connections Overview ......................6 Wiring your Detector .......................... 6 Creating a Detector Chain ......................... -
Page 3: Important Warning Statements
Installation & Operation Manual Merlin GDP2X 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
Typical Application, Location & Positioning The Merlin GDP2X is a multi-safe zone gas detection panel which can be used in many applications such as factories, car parks, shopping centres and most commonly - boiler houses. It can be used with up to eight Merlin gas detectors (model X) for monitoring and detecting gas including carbon monoxide, liquid petroleum gas and methane. -
Page 5: Access & Mounting
Installation & Operation Manual Merlin GDP2X Access & Mounting Unpack all the parts! Designed for surface mounting, it must be installed by a licensed, insured contractor or competent person. Carefully remove the front cover from the unit by unscrewing the four bolts located at each corner. -
Page 6: Board Connections Overview
Installation & Operation Manual Merlin GDP2X Board Connections Overview POWER / LINE IN 100-240vac mains power supplied to the [POWER/LINE IN] connector using a 3-core cable and fused at 3A. On connecting the mains supply to the panel the power LED indicator will light up – this is located on the front cover. -
Page 7: Creating A Detector Chain
Installation & Operation Manual Merlin GDP2X Creating a Detector Chain Create a detector chain by connecting detectors in a parallel (daisy chain) method. Any other way may cause issues or damage to the overall system. Resistor switches should be turned on at each end of a chain –... -
Page 8: 120Ohm Termination Resistance
Installation & Operation Manual Merlin GDP2X 120ohm Termination Resistance Signal communication issues may occur where the bus length is too long, high baud rates are used or signal reflections are occurring. To avoid this, terminating at each end of a chain may help the quality of the data signal by turning on the 120-ohm terminal resistor switch. -
Page 9: Factory Set Condition
Installation & Operation Manual Merlin GDP2X Factory Set Condition FUNCTION OPTION Explanation BMS relay ON/OFF for- - Gas -Gas changes relay state with gas valve status only. Auto Start- - OFF In the event of a power loss, the system will require resetting manually. -
Page 10: Zone Screens
Installation & Operation Manual Merlin GDP2X Zone Screens Switch between zone screens by touching the relevant zone screen, i.e. [Z1] or [Z2]. Each zone can display up to 4 detectors and includes the status of alarms and gas levels. ID: The detector identification number Serial Number: The unique serial number for that detector. -
Page 11: General Maintenance
Installation & Operation Manual Merlin GDP2X General Maintenance Cleaning Keep your system in good working order - follow these basic principles; Remove any dust/debris from the outer enclosures regularly using a slightly damp cloth. Never use detergents or solvents to clean your devices. - Page 12 Installation & Operation Manual Merlin GDP2X What do I need? Contact your S&S Northern representative for details of suitable bump testing kits and gases. Kits usually consist of a certified gas cylinder; flow control regulator, tube pipe and applicator cone. We recommend only using S&S Northern calibration gas kits to ensure correct flow rates meet S&S Northern technical requirements.
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Page 13: Service & Field Calibration
Installation & Operation Manual Merlin GDP2X Service & Field Calibration Overview Detectors are pre-calibrated at the time of manufacture, therefore a field calibration is only required periodically (usually annually) to compensate for its sensitivity and accuracy that can be inhibited by external factors. Dust, humidity, temperature fluctuations, cleaning products, contaminants or sensor drift (ageing) can cause a decline in sensitivity, accuracy and eventual failure. -
Page 14: Field Calibration
Installation & Operation Manual Merlin GDP2X Field Calibration 1. Carefully remove the detector cover to access the circuit board. 2. Ensure that service mode has been enabled on the control panel. 3. Short out the unmarked service headers for ~3s. -
Page 15: End Of Operational Life (Eol)
Installation & Operation Manual Merlin GDP2X Access to the interior of the detector, when carrying out any work, must be conducted by a competent person! Before carrying out any work ensure local regulations and site procedures are followed! Always give at least five (5) minutes between testing the same unit or when gas has fully dispersed! - Page 16 Installation & Operation Manual Merlin GDP2X 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 a competent/trained engineer to ensure correct installation and operation.