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Mini Merlin Installation, Operation & Maintenance                                                                                                                              

 

Rev: 01 02-22 

3  

Safety Information 

 

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 product is used in a manner not specified by the manufacturer, the safety provided by the product may be impaired. 

 

This product is designed for indoor operation only. 

 

Detectors and cables must be protected against mechanical damage. 

 

The internal fuse should be replaced only with the same type. Anti-surge fuse 3.15A 250Vac 5x20. 

 

The expected lifetime of gas sensor elements is 5 years upon initial power up. The device will display a message to indicate 
this time and should immediately be replaced. 

 

It is recommended that this product be commissioned upon installation and serviced annually. 

 

Do not apply lighter gas or other aerosols to the product 

 this will cause extreme damage. 

 

High concentrations of alcohol / ethanol found in many products may damage, deteriorate, or affect the gas sensing 
elements 

 Avoid exposure near your device. 

 

This equipment is designed to detect carbon monoxide and natural gas only - from any source of combustion.  

 

This product is not designed to detect smoke, fire or other gases and should NOT be used as such. 

 

This device provides early warning of the presence of methane or carbon monoxide, usually before a healthy adult would 
experience symptoms. This early warning is possible provided your alarm is located, installed and maintained as described 
in this guide. 

 

This device requires a continual supply of electrical power 

 it will not work without power. 

 

This device should not be used to substitute proper installation, use and / or maintenance of fuel burning appliances 
including appropriate ventilation and exhaust systems. 

 

This device does not prevent methane or carbon monoxide from occurring or accumulating. 

 

Actuation of your alarm indicates the presence of dangerous levels of Methane or CO. 

 

The device can respond to other gases other than its intended target such as Hydrogen (H2), Ethylene (C2H4) and Nitric 
Oxide (NO). In addition, the Methane sensor may react to iso-butane. 

 

Seek fresh air supply and contact your local gas emergency service should you suspect a gas leak. 

 

This device may not fully safeguard individuals with specific medical conditions.  

 

If in doubt, consult a doctor / physician. 

 

Your product should reach you in perfect condition, if you suspect it is damaged, contact your supplier

 

 

Warranty Statement

 

 

 

Warranty Coverage: The manufacturer warrants to the original consumer purchaser, that this product will be free of defects in 
material and workmanship for a period of two (2) years from date of purchase.  
The 

manufacturer’s liability hereunder is limited to replacement of the product with repaired product at the discretion of the 

manufacture. This warranty is void if the product has been damaged by accident, unreasonable use, neglect, tampering or other 
causes not arising from defects in material or workmanship. This warranty extends to the original consumer purchaser of the product 
only. Disclaimers: Any implied warranties arising out of this sale, including but not limited to the implied warranties of description, 
merchantability and intended operational purpose, are limited in duration to the above warranty period. In no event shall the 
manufacturer be liable for loss of use of this product or for any indirect, special, incidental or consequential damages, or costs, or 
expenses incurred by the consumer or any other user of this product, whether due to a breach of contract, negligence, strict liability 
in tort or otherwise. The manufacturer shall have no liability for any personal injury, property damage or any special, incidental, 
contingent or consequential damage of any kind resulting from gas leakage, fire or explosion. This warranty does not affect your 
statutory rights. Performance: During the above warranty period, your product will be replaced with a comparable product if the 
defective product is returned together with proof of purchase date. The replacement product will be in warranty for the remainder of 
the original warranty period or for six months 

 whichever is the greatest.  

 
 

Information on waste disposal for consumers of electrical & electronic equipment.

 

 

When this product reaches the end of its life it must be treated as Waste Electrical & Electronics Equipment (WEEE).  
WEEE marked products must not be mixed with general household waste, but kept separate for the treatment, recovery and 
recycling of the materials used. Please contact your supplier or local authority for details of recycling schemes in your area. 

 
At the end of their working life, electrochemical sensors should be disposed of in an environmentally safe manner.

 

Alternatively, they 

can be securely packaged and returned to OGS clearly marked for disposal. Electrochemical sensors should not be incinerated as 
this may cause the cell to emit toxic fumes

.  

 

Содержание Mini Merlin TFT CH4CO v2

Страница 1: ...TFT CH4CO v2 Dual Gas Detector Installation Operation Maintenance Manual Please read this manual carefully and retain for future use For specific requirements that may deviate from the information in this guide contact your supplier Oceania Gas Safety www oceaniagassafety com ...

Страница 2: ...ng Cabling 6 Circuit Board Overview 7 Wiring 7 Auto Reset Buzzer Switches 9 Building Management System 9 Operation 10 Initial Power Up 10 Digital Indications 10 Alarm Set Points 10 Manual Reset 10 Remote Shut Off 10 Manual Circuit Simulation Test 11 End of Operational Life EOL 11 Maintenance 12 Cleaning 12 Manual Circuit Simulation Test 12 Bump Test Gas Response Check 12 Bump Test Procedure 13 Spe...

Страница 3: ...th specific medical conditions If in doubt consult a doctor physician Your product should reach you in perfect condition if you suspect it is damaged contact your supplier Warranty Statement Warranty Coverage The manufacturer warrants to the original consumer purchaser that this product will be free of defects in material and workmanship for a period of two 2 years from date of purchase The manufa...

Страница 4: ...ly ventilated Automobiles gas stoves water heaters portable fuel burning heaters fireplaces Blocked chimneys or flues corroded or disconnected vent pipes Burning charcoal or fuel in grills in an enclosed area or near the home Methane General Information Methane is non toxic and it can be harnessed as an energy source However methane is highly explosive and it can cause death by asphyxiation Methan...

Страница 5: ... positions determined by those who have knowledge of gas dispersion the process plant system and equipment involved and in consultation with both safety and electrical engineering personnel 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...

Страница 6: ...g electrical box Restrain the hazardous live wiring from accidental loosening to prevent wires from moving after installation and touching parts of opposite polarity or at low voltages Isolate the equipment from all hazardous live power sources before opening the cover 1 Carefully remove the front cover from the unit by using an M3 socket wrench 2 Using the rear base mark mounting holes to the wal...

Страница 7: ...lamping or barrier For field connections other than connected Heat detectors use wires suitable for at least 167 F 75 C Wiring GAS VALVE We do not recommend installing a gas solenoid valve with standing pilots 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 ...

Страница 8: ...liance Multiple appliance limit switches can be wired in series ADAPTABLE OUTPUTS The mini merlin can be used to effect external relays and contactors to disable multiple appliances when a fault condition is detected Multi pole relays can interrupt power to electrical circuits controlling boiler valves and pumps Low voltage wiring is to be inserted into the external limit circuit of a gas applianc...

Страница 9: ... wire the input in series with the relay output Auto Reset Buzzer Switches ON OFF Auto Reset In the event of a power loss the mini merlin will restart automatically when power is restored In the event of a power loss the mini merlin will need to be reset manually when power is restored This is the factory default condition Buzzer The buzzer will sound every 15 seconds during pre alarm and continuo...

Страница 10: ...etween 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 sensor once An audible buzzer will sound if the buzzer switch on the circuit board is on Target Gas Pre Alarm Buzzer Alarm Buzzer Carbon Monoxide CO 25ppm Beep every 15s 50ppm Contin...

Страница 11: ...mate from the first five 5 hours of continuous power The EOL will depend on the type of gas your detector is targeting and may vary depending on its application and environmental conditions such as the frequency of exposure to the target gas poisons or inhibitors The typical life of a gas detector depends on its application and intended target gas in addition the operational life can be prolonged ...

Страница 12: ...y briefly exposing the unit to a known concentration of the target gas that usually exceeds the highest alarm point If the detector goes into alarm and all signals outputs activate then the system is working safely If the system fails to operate as intended in an alarm state the gas detector must not be used until a full inspection and service has been conducted NFPA requires all gas detectors to ...

Страница 13: ...cylinder All cylinders will re seal upon removal of the regulator valve Deviating from this test process is deemed improper and may affect the functional safety of your device Exposure to chemicals smoke or any other materials other than the gases intended to be monitored can seriously damage the gas sensing elements Always allow a minimum of 5 minutes before testing the same unit 1 Ensure you hav...

Страница 14: ...Mini Merlin Installation Operation Maintenance Rev 01 02 22 14 Page intentionally left blank ...

Страница 15: ...c Equipment Overvoltage Category II Pollution Degree 2 Relays Volt Free BMS relay output 0 5A switching current resistive load Environmental Ingress Protection Not Formally Evaluated Operating 10 50 C 14 122 F 30 80 RH non condensing Storage 25 50 C 13 122F up to 95 RH non condensing Altitude Rating 2000m Wiring Typical Min 18AWG 75 C min Tinned copper Approvals Electrical Safety and Electromagnet...

Страница 16: ... performs as intended and is free from any unforeseen damage caused by transit installation Every effort is made to ensure the accuracy of this document however OGS can assume no responsibility for any errors or omissions in this document or their consequences OGS would greatly appreciate being informed of any errors or omissions that may be found in the content of this document For information no...

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