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Installation & Operation Manual                                                                        Merlin Gas Detector TFT 

 

 

AGSDETTFT-IOM Iss: 5   06-20

 

 

Merlin -S- Systems 

 
12-24V power supply via Power Input [+ -] and ‘S’ panel [GAS DETECTOR] terminal. 

 

 

 
 
Building Management Systems (BMS)
  
 
If you are connecting to ‘S’ range you will need to use [NC/COM] terminals as an alarm relay. 

These are volt free connections to building management systems. 
A relay will change state when in alarm or when gas is detected.  
BMS terminals can be used in conjunction with other external relays that affect other devices 
and controls such as purge fans and audible alarms etc. 

 

 

 

Merlin -GDP- Systems 

 

12-24V power supply via Power Input [+ / -] and GDP panel [GAS DETECTION ZONE] terminal. 

 

 

 

If you are using our ‘GDP’ range you will need to use the [C/L] terminal as an alarm relay. 
A relay will change state when in alarm or when gas is detected.  
 
BMS terminals can be used in conjunction with other external relays that affect other devices 
and controls such as purge fans and audible alarms etc. 
 

Summary of Contents for Merlin TFT

Page 1: ...merican Gas Safety we supply a full range of remote gas detectors including carbon monoxide CO natural gas NG and liquid petroleum gas LPG that are compatible with our range of Merlin panels The infor...

Page 2: ...5 Wiring the Detector 5 Merlin X Systems 5 Merlin S Systems 7 Merlin GDP Systems 7 X Chain ID Switches 8 Audible Alarm Switch 8 Factory Set Condition 8 Trouble Shooting 9 Specification 9 OPERATION 10...

Page 3: ...for detectors will vary based on the intended application and target gas they should be located near identified sources of a potential gas leaks pockets where hazardous gas could quickly accumulate a...

Page 4: ...ully remove the rear cover from the unit by releasing the two latching clips located at the bottom of the case To do this use a small flat head screwdriver 2 Using the rear cover mark the screw holes...

Page 5: ...verview Wiring the Detector Merlin X Systems 12 24V Power and data supply via DETECTOR X CHAIN terminal and Merlin GDP X range terminal DETECTOR CHAIN Detectors can be wired in any configuration IN OU...

Page 6: ...ain System Typical Wiring Example Chain System Termination Switches 120ohm Chain Termination Resistor Switch Signal communication issues may occur where the bus length is too long or high baud rates a...

Page 7: ...en in alarm or when gas is detected BMS terminals can be used in conjunction with other external relays that affect other devices and controls such as purge fans and audible alarms etc Merlin GDP Syst...

Page 8: ...ck reference For more information refer to your GDP X manual Audible Alarm Switch There is a switch on the detector TFT board Buzzer On Off The user can choose whether to have an audible alarm when da...

Page 9: ...TFT Thin Film Transistor Screen Brightness Non adjustable Initial Stabilisation Time 60 Seconds approx Power Input Voltage 12 24V 7 30VDC Relay Output 0 5A Switching Current resistive load Consumptio...

Page 10: ...ber e the detector ID number Gas Level Indicators End of Life Indicator This message indicates that the detector has reached its expected operational lifecycle No gas levels will be displayed Contact...

Page 11: ...sic principles DO carefully remove any accumulated dust from the outer enclosure once a month NEVER use detergents or solvents to clean your device this may permenantly or temporarily damage the gas s...

Page 12: ...working safely If the bump test results are not within the acceptable range the gas detector must not be used until a full calibration has been conducted Bump testing has a number of benefits for the...

Page 13: ...H One Year Warranty O2 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 three 3 yea...

Page 14: ...Installation Operation Manual Merlin Gas Detector TFT AGSDETTFT IOM Iss 5 06 20 14 NOTES...

Page 15: ...Installation Operation Manual Merlin Gas Detector TFT AGSDETTFT IOM Iss 5 06 20 15 NOTES...

Page 16: ...o the system owner user Date of Installation Installation Location Organisation Stamp Signature of the installer Replacement Date CONTACT US AGS Head Office Tel 727 608 4375 Fax 727 538 4237 info amer...

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