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Mini Merlin Installation, Operation & Maintenance                                                                                                                              

 

Rev: 03 05-22 

15  

Specification 

General 

Model: 

Mini Merlin LPGCO v2 TX 

Target Gases: 

LPG & CO 

Size: (H x W x D) 

5.95 x 4.37 x 1.97

” (1

51 x 111 x 50mm) 

Housing Material: 

ABS PA765 (Flame Rating UL94 V-1) 

Mounting: 

Safe Zone - Indoor use - Wall Mounted 

Weight: 

12.24oz (0.347kg) 

User Interface

 

Display: 

1.8” TFT 

 

Screen Brightness: 

Non-Adjustable  

Visual Indicators: 

TFT visual. Green: Normal; Yellow: Pre-Alarm; Red: Alarm 

Audible Alarm: 

>70dB @ 3.28ft (1m). Quiet conditions. 

Buttons: 

Multi-Function 

 Initial Start / Reset / Circuit Test 

Language: 

English 

Power Supply

 

Power Consumption: 

3W max 

AC Power: 

100-120V~ 50/60Hz 

Internal Fuse: 

Anti-Surge 3.15A 250Vac 

Equipment

 

Overvoltage Category: 

II 

Pollution Degree: 

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 

Electromagnetic Compatibility 

UL61010-1/2012/R:2019-07.  
CAN CSA C22.2 No. 61010-1-12/A1:2018-11 
EMC EN 61326-1:2013  

Sensor Specification 

Gas Sensor 

Indicating 

Range 

Steps 

Response 

(t90)  

Recovery 

(t10)  

 Alarm: 1  

(Pre alarm warning) 

Alarm: 2 

*EOL 

(Years)

 

Electrochemical Sensors

 

Carbon Monoxide (CO) 

0-999ppm 

<60s 

<60s 

25ppm 

▲50

ppm  

5  

Semiconductor Sensors 

Propane (LPG) 

0-20% LEL 

0.1 

<30s 

<30s 

8% LEL 

10% LEL 

10 

 

 

▲ Rising Alarm ▼Falling alarm

 

*EOL 

 Expected Operational Life

 

 

 
 
 
 
 
 
 
 
 

Summary of Contents for Mini Merlin LPGCO v2 TX

Page 1: ...O v2 TX 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...

Page 2: ...uits 8 Wiring Adaptable Outputs 8 Wiring Pilot Water Heater Boiler Limit Breaker 9 Wiring Remote Shut Off 9 Auto Reset Buzzer Switches 9 Building Management System 10 Operation 10 Initial Power Up 10...

Page 3: ...ic 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...

Page 4: ...used for heating cooking and vehicles It is Obtained during the processing of crude oil or direct from the sea Colourless and odourless An odourising agent is added before distribution Half as heavy a...

Page 5: ...ted in 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...

Page 6: ...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 equi...

Page 7: ...than connected Heat detectors use wires suitable for at least 167 F 75 C Wiring Gas Solenoid Valve When the installation includes a standing pilot ensure the internal auto reset dip switch is in the O...

Page 8: ...iance Multiple appliance limit switches can be wired in series Wiring Adaptable Outputs The mini merlin can be used to effect external relays and contactors to disable multiple appliances when a fault...

Page 9: ...mally closed and will alarm when energised open isolating the gas supply When using this input only the mains utility output shall de energize If you are using the CO or NG relay to shut down a boiler...

Page 10: ...he touch sensor on the front cover for 3 seconds The detector enters a stabilisation phase for approximately one minute during this period the device is not operational If the detector has been config...

Page 11: ...h button is pressed and held during normal operation the mini merlin will simulate an open circuit to ensure all configured systems outputs alarms indications and other external devices operate as int...

Page 12: ...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 w...

Page 13: ...ylinder 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 smo...

Page 14: ...ne LPG LEL Batch Cylinder No CO ppm Batch Cylinder No Propane LPG LEL Batch Cylinder No CO ppm Batch Cylinder No Propane LPG LEL Batch Cylinder No CO ppm Batch Cylinder No Propane LPG LEL Batch Cylind...

Page 15: ...3 15A 250Vac 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 Opera...

Page 16: ...nded and is free from any unforeseen damage caused by transit installation Every effort is made to ensure the accuracy of this document however AGS can assume no responsibility for any errors or omiss...

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