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MINI MERLIN LPGCO 

USER GUIDE 

 

  

 

 

Rev: 03   05-19 

12  

Pilot Water Heater and Boiler Limit Breaker. 
 
The device can be used to directly shut the pilot of a water heater using a product from Field 
Controls. The BMS terminals may also be used to connect to a home alarm system. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Remote Shut Off. 
 
Your device has a facility for remote devices to be connected.  
The [Remote Shut Off] terminal is NC (Normally Closed) and will alarm when energised Open.  
 
 
 
Remote devices cut off the gas supply 
when activated.  
 
 
 
 
 
 
 
 
 
 
 
 
To reset the device after a remote shut off has been activated – press the Touch Button. 
 

Summary of Contents for Mini Merlin LPGCO

Page 1: ...MINI MERLIN LPGCO USER GUIDE Rev 03 05 19 1 Mini Merlin LPGCO Dual Gas Monitor Liquid Petroleum Gas LPG Carbon Monoxide CO User Guide Please read this guide carefully and retain for future use...

Page 2: ...tion 4 3 Liquid Petroleum Gas LPG General Information 5 4 Mini Merlin Features 6 5 Technical Specification 7 6 Installation Location 8 7 Mini Merlin Circuit Board 9 8 Power On Off 10 9 Building Manage...

Page 3: ...or other aerosols to the device 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 ne...

Page 4: ...els Generally above 100ppm This should be treated as an urgent situation Medium levels Generally between 50ppm to 100ppm This should be cause for concern and should not be ignored or dismissed Low lev...

Page 5: ...in gas form and will tend to sink to the lowest possible level and may accumulate in cellars pits drains etc LPG in liquid form can cause severe cold burns to the skin owing to its rapid vaporisation...

Page 6: ...d configured to do so END OF LIFE This indicates that the device requires immediate replacement The gas monitoring elements are expected to last for 5 years from initial installation and power up depe...

Page 7: ...p Time One minute Low Level Alarm pre alarm LPG 8 LEL 0 16 BV CO 30ppm High Level Alarm LPG 10 LEL 0 2 BV CO 30 ppm for 2 hours 50 ppm for 1 hour 100 ppm for 10 minutes 300 ppm for 1 minute Volt free...

Page 8: ...ll void any warranty There are also two knock outs for electrical wiring access a divider to separate low and high voltage connections Recommended Installation Locations The device should be mounted n...

Page 9: ...factory setting and during normal operation this input shuts off the gas valve relay in the event of external detectors being triggered Switch Options OFF ON Auto Reset Switch DEFAULT When the power...

Page 10: ...ggering alarm contacts operating and external relay for multiple appliance shut down and generating status signals for a BMS system 10 Wiring Applications Gas Supply Controlled by 120vAC Solenoid Valv...

Page 11: ...cuit of an appliance wire in series as per the following diagram Multiple Appliance Limit Circuit The device can be used directly to disable multiple gas appliances when a fault condition is detected...

Page 12: ...d Controls The BMS terminals may also be used to connect to a home alarm system Remote Shut Off Your device has a facility for remote devices to be connected The Remote Shut Off terminal is NC Normall...

Page 13: ...ble alarm gas indicators and BMS relays To keep your device in good working order you must follow these steps DO regularly verify your device is operating as intended by testing at least once a week D...

Page 14: ...MINI MERLIN LPGCO USER GUIDE Rev 03 05 19 14...

Page 15: ...MINI MERLIN LPGCO USER GUIDE Rev 03 05 19 15...

Page 16: ...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 incide...

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