AGS MINI MERLIN Installation Operation & Maintenance
Ch4 co: dual gas detector methane & carbon monoxide
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- User manual (16 pages) ,
- Installation & operation manual (16 pages)
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Installation, Operation & Maintenance
Your new Mini Merlin is a dual gas sensor carefully designed and tested to monitor levels of Methane (CH
Carbon Monoxide (CO) in the air. If there is a dangerous build-up of gas at the sensor, this device can shut off the gas
supply via a gas safety valve and /or gas fired appliance(s). This device has additional features for resetting systems,
as well as audible and visual alarms - It can also be integrated with a Building Management System (BMS).
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: 20 12-20
MINI MERLIN
CH
CO: DUAL GAS DETECTOR
4
Methane & Carbon Monoxide
Installation, Operation & Maintenance
Please read this manual carefully and retain for future use.
Mini-Merlin
) and
4
1
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Table of Contents
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Summary of Contents for AGS MINI MERLIN
- Page 1 Installation, Operation & Maintenance Please read this manual carefully and retain for future use. Your new Mini Merlin is a dual gas sensor carefully designed and tested to monitor levels of Methane (CH ) and Carbon Monoxide (CO) in the air. If there is a dangerous build-up of gas at the sensor, this device can shut off the gas supply via a gas safety valve and /or gas fired appliance(s).
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Page 2: Table Of Contents
Gas Testing Overview ......................14 Gas Sensor Types & Reaction Times .................. 14 Gas Testing Kits ........................15 Mini Merlin Gas Testing Procedure ..................15 Test Gas Storage & Handling ....................16 Engineers Notes (Blank) ......................17 Test Record ..........................18 Installation Details ........................ -
Page 3: Important Safety Instructions
Installation, Operation & Maintenance Mini-Merlin IMPORTANT SAFETY INSTRUCTIONS Before any installation, use or maintenance read this manual carefully. The information contained within this manual should be referenced for typical installation and operation only. For site specific requirements that may deviate from the information in this guide – contact your supplier. If this device is used in a manner not specified by the manufacturer, the safety provided by the device may be impaired. -
Page 4: Carbon Monoxide Gas - General Information
Vehicles and other combustion engines running in open or confined spaces. Burning charcoal or fuel in grills in an enclosed area or near the home. For more information, please visit our website or contact your local AGS distributor. Rev: 20 12-20... -
Page 5: Methane Gas - General Information
LEL% (a percentage of the LEL) and will alarm based on the following principle of gas detection. In simplified terms, a level of 8% LEL or less on your device is generally considered safe and acceptable. For more information, please visit our website or contact your local AGS distributor. Rev: 20 12-20... -
Page 6: Installation
Installation, Operation & Maintenance Mini-Merlin INSTALLATION Planning Our monitors 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 and other forms of maintenance. -
Page 7: Mounting
Installation, Operation & Maintenance Mini-Merlin Mounting Unpack all the parts! This device is designed for either surface mounting, or mounted on a one or two gang electrical box and must be installed by a licensed, insured contractor. This device comes with a deep base back cover and barrier slip to maintain segregation between high and low volt connections. -
Page 8: Board Overview
Installation, Operation & Maintenance Mini-Merlin Board Overview Wiring GAS VALVE A gas solenoid valve should be powered using the terminals marked [VALVE OUT]. When the valve out terminal is wired to a normally closed (NC) gas solenoid valve, the device can be used to isolate the gas supply for multiple appliances. - Page 9 Installation, Operation & Maintenance Mini-Merlin APPLIANCE LIMIT CIRCUIT The device can be used to directly shut down a gas appliance when a fault condition is detected (gas leak) by wiring terminals of one BMS into the low voltage safety limit circuit of the appliance.
- Page 10 Installation, Operation & Maintenance Mini-Merlin PILOT WATER HEATER & BOILER LIMIT BREAKER The device can be used to directly shut the pilot of a water heater in an alarm or power failure state using a product from Field Controls. The BMS terminals may also be used to connect to a home alarm system. Wiring example as shown.
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Page 11: Auto Reset & Buzzer
These switches can be used for a variety of purposes including triggering alarm contacts, operating and external relay for multiple appliance shut-down and generating status signals for a BMS system. Specification Product: Mini Merlin Version: CH4CO Display 1.8” TFT – Thin Film Transistor... -
Page 12: Operation
Installation, Operation & Maintenance Mini-Merlin OPERATION First Power Up When electrical power is supplied, press and hold the Touch button, the device enters a stabilisation phase for approximately one minute – during this period the device is not operational. If the mini-merlin has been configured to ‘auto reset’ – your device will power up automatically when electrical power is supplied. -
Page 13: Gas Level Alarms
Installation, Operation & Maintenance Mini-Merlin Gas Level Alarms When alarms reach a RED status the maximum concentration level detected will be saved and the screen value will switch between the maximum (MAX) and the real time current value! When the device has reached an alarm state, the concentration indicator will remain red even if gas levels are safe until the device is reset by pressing the Touch button once! Remote Shut-Off Screen This message will display if the device is integrated with remote shut off devices such as... -
Page 14: Maintenance & Testing
Installation, Operation & Maintenance Mini-Merlin MAINTENANCE & TESTING Cleaning Keep your device 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 15: Gas Testing Kits
Installation, Operation & Maintenance Mini-Merlin Gas Testing Kits AGS provide a range of test gas kits traceable to appropriate standards and usually consist of: Certified gas cylinder / Spray. • Flow control regulator / Control Valve • Tube pipe / Applicator cone •... -
Page 16: Test Gas Storage & Handling
Installation, Operation & Maintenance Mini-Merlin Test Gas Storage & Handling All test gases are classified as non-flammable and non-toxic, however, they do contain gas under pressure and may explode if heated to extreme temperatures and cause asphyxiation in high concentrations. Cylinders should be stored in a vertical position secured to prevent them falling over. -
Page 17: Engineers Notes (Blank)
Installation, Operation & Maintenance Mini-Merlin Engineers Notes (Blank) Rev: 20 12-20... -
Page 18: Test Record
Installation, Operation & Maintenance Mini-Merlin Test Record Date Gas Details Pass Sign Rev: 20 12-20... - Page 19 Installation, Operation & Maintenance Mini-Merlin Date Gas Details Pass Sign Rev: 20 12-20...
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Page 20: Installation Details
Installation, Operation & Maintenance Mini-Merlin Installation Details Please pass this manual to the system owner / user. Date of Installation: Installation Location: Organisation: Stamp / Signature of the installer: American Gas Safety LLC Head office: 6304 Benjamin Road, Suite 502, Tampa, FL 33634 Tel: (727) 608-4375 info@americangassafety.com American Gas Safety LLC is the owner of this document and reserves all rights of modification without prior notice.
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